Philippine Electrical Code Part 1: Chapter 1 PDF

Philippine Electrical Code Part 1: Chapter 1 Group 1 Castillo, Cayao, Magbanua, Tapang The Lasallian Prayer “I will continue, O my God, to do all my actions for the love of Thee.” Saint John Baptist de La Salle, pray for us. Live Jesus in our hear...

Philippine Electrical Code Part 1: Chapter 1 Group 1 Castillo, Cayao, Magbanua, Tapang The Lasallian Prayer “I will continue, O my God, to do all my actions for the love of Thee.” Saint John Baptist de La Salle, pray for us. Live Jesus in our hearts, forever. 31 August 2024 Prepared By: Group 1 Group 1 Assignment History of the Philippine Electrical Code. What are the main purpose of Philippine Electrical Code. What is the REPUBLIC ACT NO. 7920, AN ACT PROVIDING FOR A MORE RESPONSIVE AND COMPREHENSIVE REGULATION FOR THE PRACTICE, LICENSING, AND REGISTRATION OF ELECTRICAL ENGINEERS AND ELECTRICIANS. What are the content of PEC part 1 and part 2. 31 August 2024 Prepared By: Group 1 Group 1 Assignment History of the Philippine Electrical Code. The first documented electrical code was published on November 16, 1881, titled "The Dangers of Electric Lighting." The first National Electrical Code (NEC) was developed in 1897, 18 years after Thomas A. Edison’s invention of the incandescent light bulb. Since 1911, the National Fire Protection Association (NFPA) has been responsible for maintaining and publishing the NEC. The NEC is regularly revised every three years to incorporate advancements in products, materials, and installation techniques. The code is reviewed by 21 separate committees, each with 15- 20 members, who meet to discuss, accept, or reject proposed changes and revise the code sections assigned to them. 31 August 2024 Prepared By: Group 1 Group 1 Assignment History of the Philippine Electrical Code. Based on 2017 National Electrical Code (NFPA 70) The Philippine Electrical Code Part 1, 2009 Edition, was based on NEC 2005. The NEC is revised every three years to incorporate updates in products, materials, and installation techniques. NEC editions include 2008, 2011, 2014, and 2017. Upcoming NEC revisions are scheduled for 2020, 2023, 2026, and 2029. 31 August 2024 Prepared By: Group 1 Group 1 Assignment What are the main purpose of Philippine Electrical Code. 1. Ensure Safety 2. Promote Reliability 3. Standardize Practices 4. Protect Property and Life 5. Facilitate Compliance 6. Adapt to Technological Changes 7. Guide Professionals 31 August 2024 Prepared By: Group 1  Group 1 Assignment What is the REPUBLIC ACT NO. 7920, AN ACT PROVIDING FOR A MORE RESPONSIVE AND COMPREHENSIVE REGULATION FOR THE PRACTICE, LICENSING, AND REGISTRATION OF ELECTRICAL ENGINEERS AND ELECTRICIANS. Republic Act No. 7920, also known as the "New Electrical Engineering Law," is a law in the Philippines enacted to regulate the practice, licensing, and registration of electrical engineers and electricians in the country. It was signed into law on February 24, 1995. 1. Regulation of the Practice of Electrical Engineering 2. Creation of the Board of Electrical Engineering 3. Licensing and Registration 4. Scope of Practice 5. Code of Ethics 6. Penalties for Violations 31 August 2024 Prepared By: Group 1  Group 1 Assignment What are the content of PEC part 1 and part 2. Safety Standards Design and Specifications Installation Operation & Maintenance PEC Part 1: This part generally covers PEC Part 2: Covers provisions and the requirements for the installation work rules for protecting individuals of electrical systems, including wiring from hazards related to the methods, equipment, and system construction, installation, operation, performance. It focuses on ensuring and maintenance of electric power safety in electrical installations and supply systems, including power outlines the standards for various stations, overhead and underground electrical components and practices. lines, and communication lines. 31 August 2024 Prepared By: Group 1  INTRODUCTION 1.0.1.1 PURPOSE (A) Practical Safeguarding. The purpose of this Code is the practical safeguarding of persons and property from hazards arising from the use of electricity. (B) Adequacy. This Code sets minimum safety standards, but initial wiring should consider future electrical expansion to avoid hazards from overloading. (C) Intention. This Code is intended as a design specification or an instruction manual to qualified persons. (D) Relation to Other International Standards. This Code aligns with International Electrotechnical Commission Standard 60364-1, Section 131, Electrical Installations of Buildings. addressing safety principles such as protection against thermal effects, overcurrent, fault currents, and overvoltage. 31 August 2024 Prepared By: Group 1  INTRODUCTION 1.0.1.2 SCOPE (A) Covered. installation of electrical conductors, equipment, raceways, as well as monitoring, signaling, communications conductors, equipment, and optical fiber cables and raceways within or connected to various locations. (1) Public and private buildings, all other buildings/premises that may require practical safeguarding of persons and property from the hazards arising from the use of electricity. (2) Electric generating plants (3) Industrial plants (4) Transformer stations (5) Permanent and temporary substations, etc. (6) Airfields (7) Railways switchyards 31 August 2024 Prepared By: Group 1  INTRODUCTION 1.0.1.2 SCOPE (8) Yards, carnival, parks, parking and other lots (9) Quarries and mines (10) Watercraft (11) Dockyards (12) Trailers (13) Mobile homes and recreational vehicles (14) Offshore facilities 31 August 2024 Prepared By: Group 1  INTRODUCTION 1.0.1.2 SCOPE (B) Not Covered. (1) Installations in railway rolling stock, aircraft, or automotive vehicles (2) Installations of railways for generation, transformation, transmission, or distribution of power used exclusively for operation of rolling stock 31 August 2024 Prepared By: Group 1  INTRODUCTION 1.0.1.3 AUTHORITY (A) This Code has been approved and adopted by the Board of Electrical Engineering, Professional Regulation Commission. (B) By virtue of authority vested in the Board under the Republic Act 7920 or national electrical engineering law, it hereby direct strict adherence to the provisions of this Code. 31 August 2024 Prepared By: Group 1  INTRODUCTION 1.0.1.4 ENFORCEMENT (A) This Code is intended for mandatory application by the Office of the Building Official/EE over electrical installations. (B) The Office of the Building Official/EE shall have the responsibility of implementing the provisions of this Code. (C) This Code may require new products, constructions,or materials that may not yet be available at the time this Code is adopted. 31 August 2024 Prepared By: Group 1 INTRODUCTION 1.0.1.5 Mandatory Rules, Permissive Rules, Explanatory Material, and Appendices (A) Mandatory Rules: These are the binding requirements or prohibitions in the Code, indicated by the terms "shall" or "shall not." (B) Permissive Rules: These are options or alternatives allowed by the Code but not required, indicated by the terms "shall be permitted" or "shall not be required." (C) Explanatory Material: This includes non-enforceable, informational references or notes (FPN) related to the Code, provided to clarify or supplement the rules. (D) Appendices: These provide nonmandatory, informational content related to the PECI, included for reference but not enforceable as part of the Code's requirements. 31 August 2024 Prepared By: Group 1 INTRODUCTION 1.0.1.6 Interpretation. Interpretation of the Code must be done by licensed electrical practitioners, with conflicts referred first to the PEC Part 1 Committee, and if unresolved, the final decision is made by the Board of Electrical Engineering. 31 August 2024 Prepared By: Group 1 INTRODUCTION 1.0.1.7 Examination of Equipment for Safety Equipment and materials must be examined for safety under standard conditions by qualified organizations to avoid redundant testing and conflicting reports, and factory-installed wiring or equipment does not need reinspection if listed by a recognized testing laboratory, though application should always be reviewed by a licensed electrical practitioner. FPN No. 1: See requirements in Section 1.10.1.3. FPN No. 2: Listed is defined in Article 1.1 FPN No. 3:Appendix F contains an informative list of product safety standards for electrical equipment. FPN No. 4: Application of electrical equipment and devices shall always be consulted with a licensed electrical practitioner.Failure to do so may result in fire, serious injury, or death. 31 August 2024 Prepared By: Group 1 INTRODUCTION 1.0.1.8 Wiring Planning. (A) Plans that include ample space for future expansion and conveniently located distribution centers enhance the capacity and safety of electrical and communication systems. (B) Restricting the number of circuits in a single enclosure helps minimize the impact of short circuits or ground faults. 31 August 2024 Prepared By: Group 1  INTRODUCTION 1.0.1.9 Units of Measurement. (A) Metric units following the International System of Units (SI) are preferred for this Code. (B) Trade size designators should be used instead of actual dimensions when there is a discrepancy between nominal and measured sizes. (C) Extracted material from other standards must retain its original context, with edits only for consistency with the PEC style. 31 August 2024 Prepared By: Group 1 INTRODUCTION 1.0.1.10 Apprenticeship. (A) Republic Act 7920 mandates apprenticeship as a qualification for the RME licensure exams, which include knowledge of the PEC1 and PEC2. (B) An apprentice must train under a registered and licensed electrical engineer as specified by Republic Act 7920. 1.0.1.11 Services of a licensed electrical practitioner are required for decisions and actions involving electrical engineering and installations. 31 August 2024 Prepared By: Group 1  DEFINITIONS Accessible (as applied Accessible (as applied to Accessible, Readily to equipment): wiring methods): Wiring (Readily Accessible): A Equipment is considered methods are accessible if location is readily accessible if it can be they can be removed or accessible if it can be approached easily exposed without causing quickly reached for without barriers like damage to the building operation, renewal, or locked doors or elevated structure or finish, and are inspection without platforms. not permanently needing tools, climbing, enclosed. removing obstacles, or using portable ladders. 31 August 2024 Prepared By: Group 1 DEFINITIONS Adjustable Speed Drive: Equipment that modifies the speed of an electric motor by altering the power supplied to it. Ampacity: The maximum amount of electric current a conductor can carry continuously without exceeding its temperature rating. Appliance: Standardized equipment designed for various functions like washing or cooking, typically installed as a unit. 31 August 2024 Prepared By: Group 1 DEFINITIONS Approved: Equipment, materials, and methods recognized as acceptable by standards-setting organizations and government regulatory codes, ensuring proper testing and inspection. Askarel: Nonflammable synthetic chlorinated hydrocarbons used as electrical insulating media, which can produce combustible gases under arcing conditions. Associated Apparatus (in Hazardous Locations): Equipment that affects or maintains the safety of intrinsically safe circuits in hazardous locations, either through alternative protection or by not being used in such locations. 31 August 2024 Prepared By: Group 1 DEFINITIONS Associated Nonincendive Field Wiring Apparatus: Devices that affect nonincendive energy levels in field wiring circuits and may either have protection for hazardous locations or not be used in such locations. Attachment Plug (Plug Cap) (Plug): A device that connects flexible cord conductors to permanently connected receptacle conductors when inserted. Automatic: Performing a function without human intervention. 31 August 2024 Prepared By: Group 1 DEFINITIONS Bathroom: An area with a basin and one or more of the following: a toilet, a tub, or a shower. Battery System: Interconnected battery subsystems including storage batteries, chargers, inverters, converters, and related electrical equipment. 31 August 2024 Prepared By: Group 1 DEFINITIONS Bonded (Bonding). Connected to establish electrical continuity and conductivity. Bonding Conductor or Jumper. A reliable conductor to ensure the required electrical conductivity between metal parts required to be electrically connected. Bonding Jumper, Equipment. The connection between two or more portions of the equipment grounding conductor. Bonding Jumper, Main. The connection between the grounded circuit conductor and the equipment grounding conductor at the service. Bonding Jumper, System. The connection between the grounded circuit conductor and the equipment grounding conductor at a separately derived system. 31 August 2024 Prepared By: Group 1  DEFINITIONS Branch Circuit: The circuit conductors between the final overcurrent device protecting the circuit and the outlet(s). Branch Circuit, Appliance: A branch circuit that supplies energy to one or more outlets for appliances and has no permanently connected luminaires not part of an appliance. Branch Circuit, General-Purpose: A branch circuit that supplies two or more receptacles or outlets for lighting and appliances. Branch Circuit, Individual: A branch circuit that supplies only one piece of utilization equipment. Branch Circuit, Multiwire: A branch circuit consisting of two or more ungrounded conductors with a voltage between them and a grounded conductor with equal voltage between it and each ungrounded conductor of the circuit. 31 August 2024 Prepared By: Group 1  DEFINITIONS - Building: A structure that stands alone or is separated from adjoining structures by fire walls. - Building Official: The government official appointed by the Secretary of Public Works to enforce the National Building Code of the Philippines (NBC) and handle building permits, notices, and certificates. - Building Official, Office of the: The place where the Building Official processes permits, notices, certificates, and other related documents, also known as OBO. - Building Official/EE, Office of the: A licensed electrical practitioner in the Office of the Building Official who oversees electrical installations and ensures compliance with the Philippine Electrical Code, Part 1 (PEC1), and approves electrical permits and certificates, also known as OBO/EE. - FPN: A licensed electrical practitioner includes Registered Master Electricians (RME), Registered Electrical Engineers (REE), or Professional Electrical Engineers (PEE) under Republic Act 7920, with their respective duties and responsibilities. 31 August 2024 Prepared By: Group 1  DEFINITIONS - Circuit Breaker: A device that opens and closes a circuit manually and automatically interrupts the circuit at a predetermined overcurrent without self-damage when used within its rating. - Adjustable (as applied to circuit breakers): Indicates that the circuit breaker can be set to trip at various current, time, or both, within a predetermined range. - Instantaneous Trip (as applied to circuit breakers): Indicates that the circuit breaker trips immediately without intentional delay. - Inverse Time (as applied to circuit breakers): Indicates that the circuit breaker introduces a delay in tripping, which decreases as the current magnitude increases. - Nonadjustable (as applied to circuit breakers): Indicates that the circuit breaker cannot be adjusted to alter the tripping current value or the operation time. - Setting (of circuit breakers): The current, time, or both at which an adjustable circuit breaker is configured to trip. 31 August 2024 Prepared By: Group 1  DEFINITIONS *Clothes Closet. A nonhabitable room or space intended primarily for storage of garments and apparel *Coaxial Cable. A cylindrical assembly composed of a conductor centered inside a metallic tube or shield,separated by a dielectric material, and usually covered by an insulating jacket. 31 August 2024 Prepared By: Group 1  DEFINITIONS - Combustible Dust [as applied to Hazardous (Classified) Locations]: Dust particles 500 microns or smaller that pose a fire or explosion hazard when dispersed and ignited in air. - FPN: Refer to ASTM E1226-2012a or ISO 6184-1 for procedures on determining the explosibility of dusts. - Combustible Gas Detection System [as applied to Hazardous (Classified) Locations]: A protection technique using stationary gas detectors to monitor and detect combustible gases in industrial settings. 31 August 2024 Prepared By: Group 1  DEFINITIONS - Communications Equipment: Electronic equipment used for transmitting audio, video, and data, including power equipment (like DC converters and batteries), technical support equipment (such as computers), and dedicated conductors. - FPN: With the shift to data-centric networks, devices like computers, routers, servers, and their power supplies are increasingly critical for communications equipment installations. 31 August 2024 Prepared By: Group 1  DEFINITIONS - Composite Optical Fiber Cable: A cable that includes both optical fibers and current-carrying electrical conductors. - Concealed: Made inaccessible by the building’s structure or finish; wires in concealed raceways are considered concealed even if they can be accessed by withdrawal. - Conductive Optical Fiber Cable: An assembly of one or more optical fibers with an overall covering and non-current-carrying conductive components such as metallic strength members, barriers, armor, or sheaths. 31 August 2024 Prepared By: Group 1  DEFINITIONS - Conductor, Bare: A conductor with no covering or electrical insulation. - Conductor, Covered: A conductor encased in material that is not considered electrical insulation by this Code. - Conductor, Insulated: A conductor encased in material that is recognized by this Code as electrical insulation. 31 August 2024 Prepared By: Group 1  DEFINITIONS - Conduit Body: A section of a conduit or tubing system with a removable cover that provides access to the interior at junctions or terminal points; FS and FD boxes or larger metal boxes are not considered conduit bodies. - Connector, Pressure (Solderless): A device that connects two or more conductors or a conductor and a terminal using mechanical pressure without solder. - Continuous Load: A load expected to carry maximum current for 3 hours or more. There should be a limit to the amps of electricity or power drawn from a source to effectively manage energy usage. 31 August 2024 Prepared By: Group 1 DEFINITIONS Control Circuit: Carries electric signals to control performance but does not carry the main power current. Control Drawing (Hazardous Locations): Document detailing allowed connections in intrinsically safe or non-incendive apparatus. Controller: Device(s) that govern the electric power to connected apparatus. 31 August 2024 Prepared By: Group 1 DEFINITIONS Cooking Unit, Counter- Mounted: Cooking appliance mounted on a counter with heating elements and controls. Coordination, Selective (Selective Coordination): Localizes overcurrent conditions to limit outages using overcurrent protective devices. Copper-Clad Aluminum Conductors: Conductors with a copper layer bonded to an aluminum core, where copper makes up at least 10% of the cross-section. 31 August 2024 Prepared By: Group 1 DEFINITIONS Cord Connector (Hazardous Locations): A fitting that terminates a cord to reduce strain and may include explosion proof or flame proof seals. Cutout Box: Surface-mounted enclosure with doors or covers for accessing enclosed components. Dead Front: Equipment with no exposed live parts on the operating side. Demand Factor: Ratio of maximum demand to total connected load of a system. 31 August 2024 Prepared By: Group 1 DEFINITIONS Device: Electrical unit that carries or controls electric energy but does not use it. Disconnecting Means: Devices or methods for disconnecting circuit conductors from their power source. Dust-Ignition proof (Hazardous Locations): Equipment designed to prevent internal arcs from igniting external dust. Dusttight: Enclosures constructed to prevent dust entry. 31 August 2024 Prepared By: Group 1 DEFINITIONS Duty Types: Dwelling Types: Continuous: Constant load Unit: Single living space operation indefinitely. with complete facilities. Intermittent: Alternates One-Family: Building between load and no with one dwelling unit. load/rest. Two-Family: Building Periodic: Recurrent with two dwelling units. intermittent operation. Short-Time: Constant load Multifamily: Building operation for a short, with three or more specified time. dwelling units. Varying: Operation with varying loads and time intervals. 31 August 2024 Prepared By: Group 1 DEFINITIONS Effective Ground-Fault Current Path: A low-impedance path intended to carry current during ground-fault conditions. Effective Power Production and Distribution Network: External power systems delivering electricity to connected loads, not controlled by the interactive system. 31 August 2024 Prepared By: Group 1 DEFINITIONS Electric Sign: Self-contained, electrically operated sign conveying information. Electric Discharge Lighting: Illumination using fluorescent, HID lamps, or neon tubing. Licensed Electrical Practitioner: Registered master electrician, registered electrical engineer, or professional electrical engineer compliant with RA 7920. Electronically Actuated Fuse: Overcurrent protective device with a control and interrupting module for tripping under fault conditions. 31 August 2024 Prepared By: Group 1 DEFINITIONS Enclosed: Protected by a case, housing, fence, or wall to prevent contact with live parts. Enclosure: Housing or surrounding case to protect electrical components or equipment. Energized: Electrically connected to a voltage source. Equipment: General term for components used in electrical installations. Explosionproof Equipment: Enclosures designed to prevent internal explosions from igniting surrounding gases or vapors. 31 August 2024 Prepared By: Group 1 DEFINITIONS Exposed: Live Parts: Parts that can be touched or approached inadvertently. Wiring Methods: Attached to the surface or behind accessible panels. Externally Operable: Can be operated without exposing the user to live parts. Feeder: Conductors between service equipment or power sources and branch-circuit overcurrent devices. 31 August 2024 Prepared By: Group 1 DEFINITIONS 31 August 2024 Prepared By: Group 1 DEFINITIONS Festoon Lighting: String of outdoor lights suspended between two points. Fitting: Accessory performing a mechanical function in a wiring system. Garage: Building or space for vehicles, including storage, repair, or demonstration purposes. Ground: Earth. Grounded (Grounding): Connected to the earth or a substitute conductive body. 31 August 2024 Prepared By: Group 1 DEFINITIONS Grounded, Solidly: Connected to the ground without resistors or impedance devices. Grounded Conductor: Intentionally grounded system or circuit conductor. Ground-Fault Circuit Interrupter (GFCI): Device that de-energizes circuits within a set time when ground current exceeds safe levels. Ground-Fault Current Path: Conductive path for ground fault currents through various conductive materials. 31 August 2024 Prepared By: Group 1 DEFINITIONS Ground-Fault Protection of Equipment: Protects equipment from damaging ground faults by opening faulted circuits. Equipment Grounding Conductor (EGC): Provides a path for ground-fault current, connecting metal parts of equipment to the grounded conductor. Grounding Electrode: Device establishing an electrical connection to the earth. Grounding Electrode Conductor: Connects the grounding electrode to grounding conductors or the grounded conductor. 31 August 2024 Prepared By: Group 1 DEFINITIONS Guarded: Protected by covers, barriers, or other means to prevent contact with dangerous areas. Guest Room/Suite: Accommodation with living and sleeping facilities; a suite has multiple rooms. Handhole Enclosure: Enclosure for underground systems that allows reach-in access for maintenance. Hermetic Refrigerant Motor-Compressor: Motor and compressor enclosed in a single housing without external seals. 31 August 2024 Prepared By: Group 1 DEFINITIONS Hermetically Sealed (Hazardous Locations): Equipment sealed against external atmosphere, usually by fusion. Hoistway: Vertical space designed for elevators or dumbwaiters. Hybrid System: Power system with multiple sources like photovoltaic, wind, or generators, excluding primary network systems. Identified: Recognized as suitable for a specific purpose 31 August 2024 Prepared By: Group 1 DEFINITIONS In Sight From: Equipment visible and within 15 m of each other. Industrial Control Panel: Assembly of components like controllers, relays, and switches mounted on a panel or within an enclosure. Information Technology Equipment (ITE): Office equipment used for data, voice, or video processing, typically rated 1000 volts or less. Innerduct: Nonmetallic raceway placed within a larger raceway. 31 August 2024 Prepared By: Group 1 DEFINITIONS Interactive Inverter: Inverter operating in parallel with the utility to supply common loads. Interactive System: Power system delivering energy in parallel with the main supply. Interrupting Rating: Maximum current at rated voltage a device can interrupt. Intersystem Bonding Termination: Device connecting bonding conductors for communication systems to the grounding electrode. 31 August 2024 Prepared By: Group 1 DEFINITIONS Intrinsically Safe Apparatus/System: Apparatus or system designed to be safe in hazardous locations, with intrinsically safe circuits. Isolated (Location): Not easily accessible without special means. Kitchen: Area with a sink and cooking provisions. Labeled: Equipment with a mark indicating compliance with standards. Lighting Outlet: Outlet for connecting lamps or lighting fixtures. 31 August 2024 Prepared By: Group 1 DEFINITIONS Lighting Track (Track Lighting): Assembly supporting and energizing adjustable luminaires Listed: Equipment included in a published list of evaluated products, often requiring labeling Live Parts: Conductive components that are energized. Location, Damp: Area not subject to direct weather but exposed to moderate moisture. Location, Dry: Area not normally exposed to moisture or wetness but may occasionally be damp or wet. 31 August 2024 Prepared By: Group 1 DEFINITIONS Location, Wet: Installations underground, in concrete, or exposed to water or weather must be protected. Luminaire: is a complete lighting unit, including lamps, components for light distribution, protection, and connection to the power supply. Mobile equipment refers to electrical equipment that can be moved only with mechanical aids or is equipped with wheels for manual or powered movement 31 August 2024 Prepared By: Group 1 DEFINITIONS Motor Control Center: is an assembly of enclosed sections with a shared power bus, mainly containing motor control units. Multioutlet assembly is a raceway that holds conductors and receptacles, assembled on-site or at the factory. National Electrical Engineering Law (Republic Act 7920) is a law regulating the practice, licensing, and registration of electrical engineers and electricians, with future laws potentially superseding it. 31 August 2024 Prepared By: Group 1 DEFINITIONS Nonautomatic: Requiring human intervention to perform a function. Nonlinear load has a steady-state current waveform that does not match the waveform of the applied voltage.. 31 August 2024 Prepared By: Group 1 DEFINITIONS Oil immersion: involves electrical equipment being submerged in a protective liquid to prevent ignition of explosive atmospheres above the liquid or outside the enclosure. Optical fiber cable: is an assembly of one or more optical fibers with an overall covering, either factory-made or field-assembled. 31 August 2024 Prepared By: Group 1 DEFINITIONS Outlet: is a point in the wiring system where current is supplied to utilization equipment. Outline lighting: uses lamps or other light sources to highlight or emphasize features like a building's shape or window decorations. Overcurrent is any current exceeding the equipment's rated current or conductor's ampacity, caused by overload, short circuit, or ground fault. 31 August 2024 Prepared By: Group 1 DEFINITIONS Branch-circuit overcurrent: protective device safeguards circuits from over currents, with an interrupting rating of at least 5000 amperes. (e.g circuit breakers, GFCIs, or AFCIs (Arc Fault Circuit Interrupters) Supplementary overcurrent: device offers extra protection for specific equipment, in addition to branch-circuit protection. (e.g fuse). 31 August 2024 Prepared By: Group 1 DEFINITIONS 31 August 2024 Prepared By: Group 1 DEFINITIONS Overload: overload is when equipment or conductors exceed their normal ratings, risking damage or overheating. Panelboard: is a panel with buses and overcurrent devices for controlling circuits, mounted in a cabinet. 31 August 2024 Prepared By: Group 1 DEFINITIONS Photovoltaic (PV) system: converts solar energy into electric energy for use with a load. Plenum: is a chamber connected to air ducts that is part of an air distribution system. 31 August 2024 Prepared By: Group 1 DEFINITIONS Portable equipment: has electrical components that can be moved by a single person without mechanical aids. Power outlet: supplies and controls power to mobile homes, RVs, park trailers, boats, or temporary equipment, and includes components like receptacles and circuit breakers. 31 August 2024 Prepared By: Group 1 DEFINITIONS Premises Wiring: includes all interior and exterior wiring power, lighting, control, and signal along with associated hardware, from the power source to the outlets. Qualified person: has the skills and knowledge related to electrical equipment and installations and has received safety training to recognize and avoid associated hazards. Raceway is an enclosed channel, made of metallic or nonmetallic materials, designed to hold wires, cables, or busbars. 31 August 2024 Prepared By: Group 1 DEFINITIONS Rainproof: means constructed or treated to prevent rain from affecting the operation of the apparatus under specified test conditions. Raintight: means constructed or protected to prevent water from entering during exposure to a beating rain under specified test conditions. Receptacle: is a contact device for connecting plugs or equipment. Receptacle Outlet: An outlet where one or more receptacles are installed. 31 August 2024 Prepared By: Group 1 DEFINITIONS Retrofit kit: is a complete subassembly of parts and devices used for field conversion of utilization equipment. Sealable equipment: is enclosed with a lock or seal to prevent access to live parts without opening it, and it may or may not be operable while sealed. 31 August 2024 Prepared By: Group 1 DEFINITIONS Service: refers to the conductors and equipment that deliver electric energy from the utility to the premises' wiring system. Service Cable: Service conductors made up in the form of a cable. Service Conductors: Conductors from the utility service point to the service disconnecting means. 31 August 2024 Prepared By: Group 1 DEFINITIONS Service conductors, overhead: are the overhead lines between the service point and the first connection to the service-entrance conductors at a building or structure. Service conductors, underground: are the lines between the service point and the first connection to service-entrance conductors in a terminal box or meter. 31 August 2024 Prepared By: Group 1 DEFINITIONS Service Drop: The overhead conductors between the utility electric supply system and the service point. Service-entrance conductors (overhead) are the lines between service equipment terminals and the point where they connect to the overhead service drop. 31 August 2024 Prepared By: Group 1 DEFINITIONS Service-entrance conductors (underground): are the lines between service equipment terminals and the connection point to the underground service lateral. Service equipment: includes circuit breakers, switches, fuses, and accessories connected to the load end of service conductors, providing main control and cutoff for the supply. 31 August 2024 Prepared By: Group 1 DEFINITIONS Service Lateral: The underground conductors between the utility electric supply system and the service point. Service Point: The point of connection between the facilities of the serving utility and the premises wiring. Service Protective: device is a switch or breaker installed before the service equipment to protect service-entrance conductors from short circuits. 31 August 2024 Prepared By: Group 1 DEFINITIONS Short-Circuit Current Rating: The maximum fault current a system can handle without exceeding damage criteria. Show Window: A window designed for displaying goods or advertisements. Signaling Circuit: An electric circuit powering signaling equipment. Simple Apparatus (Hazardous Locations): A basic electrical component with low voltage and current, compatible with intrinsically safe circuits. 31 August 2024 Prepared By: Group 1 DEFINITIONS Stand-Alone Structure: Surge Arrester: System: A power Anything built A device that system operating or constructed, protects against independently excluding surge voltages by from a grid. equipment. diverting surge current. 31 August 2024 Prepared By: Group 1 DEFINITIONS Surge-Protective Device (SPD): Limits transient voltages and surge currents, classified into four types based on installation and use. Type 1: Installed between the service transformer and the main service disconnect, providing the first line of defense against surges. Type 2: Installed after the main service disconnect, usually at the branch panel, to protect downstream circuits. Type 3: Installed directly at the point of use, like outlets, for localized protection of specific devices. Type 4: These are components or assemblies designed to be built into equipment, offering integrated surge protection. 31 August 2024 Prepared By: Group 1 DEFINITIONS Switch, Bypass Isolation: A manual device that connects load conductors directly to a power source, bypassing the transfer switch. Switch, General-Use: A switch for general distribution circuits, rated by amperes and voltage. Switch, General-Use Snap: A general-use switch that fits in device boxes, used with recognized wiring systems. Switch, Isolating: A switch that isolates an electric circuit from its power source, without interrupting the circuit. 31 August 2024 Prepared By: Group 1 DEFINITIONS Switch, Motor-Circuit: A switch rated by horsepower, capable of handling motor overload currents. Switch, Transfer: A device that transfers load connections between power sources. Switchboard: A large panel with switches, protective devices, and instruments, accessible from both front and back. Switchgear: A sheet-metal- enclosed assembly containing power circuit devices and connections, with access through doors or covers. 31 August 2024 Prepared By: Group 1 DEFINITIONS Thermal Protector (Motors): A device integrated into a motor to prevent overheating. Thermally Protected (Motors): Indicates a motor is equipped with a thermal protector. Ungrounded: Not connected to ground or a conductive body extending the ground connection. Uninterruptible Power Supply (UPS): Provides AC power during a power failure. 31 August 2024 Prepared By: Group 1 DEFINITIONS Utilization Equipment: Voltage, Nominal: The assigned voltage value for a Devices that use electrical circuit, with actual voltage energy for various purposes. varying within a range for Ventilated: Designed to proper operation. allow air circulation to Voltage to Ground: Voltage remove heat, fumes, or between a conductor and the vapors. ground point, or the greatest Volatile Flammable Liquid: A voltage between conductors flammable liquid with a flash in ungrounded circuits. point below 38°C or one Watertight: Built to prevent above its flash point. moisture entry under specific Voltage (of a Circuit): The conditions. highest effective potential Weatherproof: Designed to difference between any two withstand exposure to conductors in the circuit. weather without affecting operation. 31 August 2024 Prepared By: Group 1  DEFINITIONS 1.1.2 Over 1000 Volts, Nominal Electronically Actuated Fuse: An overcurrent protective device with a control module that senses current, derives time-current characteristics, and interrupts the circuit during overcurrent. It may or may not limit current. Fuse: A protective device that opens a circuit by severing a fusible part when overcurrent passes through it. 31 August 2024 Prepared By: Group 1 DEFINITIONS Controlled Vented Power Fuse: A fuse that controls discharge during interruption, preventing solid material from escaping into the atmosphere. Expulsion Fuse Unit: A vented fuse that extinguishes arcs through the expulsion of gases produced by the arc. Nonvented Power Fuse: A fuse without provisions for arc gas or material escape during interruption. Power Fuse Unit: A fuse (vented, nonvented, or controlled vented) that extinguishes the arc through solid, granular, or liquid material. Vented Power Fuse: A fuse allowing the escape of arc gases, liquids, or particles during interruption. 31 August 2024 Prepared By: Group 1 DEFINITIONS Multiple Fuse: An assembly of two or more single- pole fuses. Substation: An assembly of equipment used to distribute, switch, or modify electrical energy. Switching Device: A device that opens or closes electric circuits. 31 August 2024 Prepared By: Group 1 DEFINITIONS Circuit Breaker: A switching device that can handle currents under normal and specified abnormal conditions, like short circuits. Cutout: A fuse assembly that includes a fuse support and fuse holder, fuse carrier, or disconnecting blade. Disconnecting/Isolating Switch: A mechanical switch used to isolate a circuit or equipment from the power source. Disconnecting Means: A device or group of devices that can disconnect a circuit from its power supply. Interrupter Switch: A switch capable of making, carrying, and interrupting specified currents. Oil Cutout: A cutout with parts immersed in oil to ensure arc interruption occurs under oil. Oil Switch: A switch with contacts that operate under oil or another suitable liquid. Regulator Bypass Switch: A device designed to bypass a regulator. 31 August 2024 Prepared By: Group 1 PERMITS AND INSPECTION CERTIFICATES ELECTRICAL PERMITS ELECTRICAL INSPECTION Electrical Permit Needed Application for Inspection Before Work is Started Certificate of Inspection Requirement for Electrical Permit Electrical Permit to Be SPECIAL CASES Issued Immediately Temporary Installation Posting of Electrical Permit Reconnection of Disconnected Services 31 August 2024 Prepared By: Group 1  PERMITS AND INSPECTION CERTIFICATES ELECTRICAL PERMITS 1.2.1.1 Electrical Permit Needed Before Work is Started An Electrical Permit is required before starting any installation, alteration, repair, or extension work on electrical systems. The permit must be obtained by owners, lessors, operators, occupants, or licensed electrical practitioners. Permit Issuance Authorities: Office of the Building Official (OBO) Authority for maritime concerns. Note: The services of a licensed electrical practitioner is required in securing the electrical permit (Republic Act 7920). 31 August 2024 Prepared By: Group 1 PERMITS AND INSPECTION CERTIFICATES 31 August 2024 Prepared By: Group 1  PERMITS AND INSPECTION CERTIFICATES ELECTRICAL PERMITS 1.2.1.2 Requirement for Electrical Permit: The Electrical Permit shall include the following minimum information (1): Applicant Professional Electrical Engineer who signed and sealed the electrical plans and specifications Photocopy of a valid Professional Tax Receipt (PTR). Photocopy of a valid Professional Regulation Commission (PRC) License. Licensed Electrical Practitioner who is in-charge of electrical works Photocopy of a valid PTR Photocopy of a valid PRC License 31 August 2024 Prepared By: Group 1  PERMITS AND INSPECTION CERTIFICATES ELECTRICAL PERMITS 1.2.1.2 Requirement for Electrical Permit: The Electrical Permit shall include the following minimum information (2): Building Owner Lot Owner Building Official Five (5) sets of complete electrical plans and specifications signed and sealed by Professional Electrical Engineer. 31 August 2024 Prepared By: Group 1 PERMITS AND INSPECTION CERTIFICATES 31 August 2024 Prepared By: Group 1 PERMITS AND INSPECTION CERTIFICATES 31 August 2024 Prepared By: Group 1  PERMITS AND INSPECTION CERTIFICATES ELECTRICAL PERMITS 1.2.1.3 Electrical Permit to Be Issued Immediately Upon receiving the application, the electrical engineer of the local building office or their representatives will immediately check it for compliance with requirements. If the application complies, the Electrical Permit will be issued after the corresponding electrical fees are paid. For extensive projects that require more time to review routine fiscal and ministerial requirements Electrical Permit does not need to be issued immediately The delay should not exceed five (5) working days. 31 August 2024 Prepared By: Group 1  PERMITS AND INSPECTION CERTIFICATES ELECTRICAL PERMITS 1.2.1.4 Posting of Electrical Permit A copy of the Electrical Permit shall be posted on the site and shall not be removed until final inspection and approval. Professional Regulation Commission (PRC) identification card of Licensed Electrical Practitioner in-charge of the design and the licensed electrical practitioner in-charge of the installation 31 August 2024 Prepared By: Group 1  PERMITS AND INSPECTION CERTIFICATES ELECTRICAL INSPECTION 1.2.2.1 Application for Inspection Before a preliminary and/or final inspection is done Office of the Building Official (OBO) 1.2.2.2 Certificate of Inspection No electrical work can be connected to a power supply without a Certificate of Final Electrical Inspection/Completion from the Office of the Building Official (OBO) signed by the OBO/EE Exception: A temporary Certificate of Inspection may be issued by the Office of the Building Official (OBO) for testing and commissioning equipment, with a specified validity date. 31 August 2024 Prepared By: Group 1 PERMITS AND INSPECTION CERTIFICATES 31 August 2024 Prepared By: Group 1  PERMITS AND INSPECTION CERTIFICATES SPECIAL CASES 1.2.3.1 Temporary Installation Temporary electrical installations must follow the same procedure. They must be removed after the certificate expires unless an extension or renewal of the electrical permit is obtained from the Office of the Building Official (OBO). 1.2.3.4 Reconnection of Disconnected Services If the service has been cut off for over one year, a new certificate of final electrical inspection is required for reconnection. 31 August 2024 Prepared By: Group 1 PERMITS AND INSPECTION CERTIFICATES 31 August 2024 Prepared By: Group 1 PERMITS AND INSPECTION CERTIFICATES 31 August 2024 Prepared By: Group 1  ELECTRICAL PLANS AND SPECIFICATIONS GENERAL 1.3.1.1 Drawing Sheet Sizes Standard Sizes 760mm x 1000mm 600mm x 900mm 500mm x 760mm Special Cases Large Magnitude For units not more than 50 sqm. and/or a total load not exceeding 3680 VA, 297 mm x 420 mm (A3 size) is permitted 1.3.1.2 Drawing Scale Appropriate metric drawing scales shall be used. 31 August 2024 Prepared By: Group 1  ELECTRICAL PLANS AND SPECIFICATIONS GENERAL 1.3.1.3. Graphic Scale Graphic scale shall be shown on each drawing sheet A graphic scale shows the nominal plan scale and stays accurate even if the plans are reduced in size. PLANS AND SPECIFICATIONS 1.3.2.1 Plan Requirements Location and Site Plans Bordering Areas Service Equipment Location Clearances 31 August 2024 Prepared By: Group 1  ELECTRICAL PLANS AND SPECIFICATIONS PLANS AND SPECIFICATIONS 1.3.2.1 Plan Requirements Legend or Symbols General Notes and/or Specifications Nature of electrical service Type of wiring Service entrance Feeders, sub-feeders and branch circuit wires for lighting and/or power load Fire alarm system, if required by law Signaling and communication Special equipment to be installed Rectifiers Electric welding equipment Heaters Others X-ray apparatus 31 August 2024 Prepared By: Group 1  ELECTRICAL PLANS AND SPECIFICATIONS PLANS AND SPECIFICATIONS 1.3.2.1 Plan Requirements General Notes and/or Specifications System or method of grounding Type and rating of main disconnecting means, overcurrent protection (OCP) and branch circuit wiring; Clearances of service drop, burial depth for service lateral, mounting height and clearance for service equipment, mounting height and clearance for kWh meter. Electrical Layout Plan for Power: Service and Distribution Electrical Circuits Emergency Power (if applicable) Room Usage 31 August 2024 Prepared By: Group 1  ELECTRICAL PLANS AND SPECIFICATIONS PLANS AND SPECIFICATIONS 1.3.2.1 Plan Requirements Electrical Layout Plan for Lighting and Receptacle Outlets.: Lighting Fixtures Switch Locations Receptacles and Appliances Lighting Circuits Emergency Lighting Receptacle Layout Plan for Fire Alarm Circuits Equipment Locations Circuit Details 31 August 2024 Prepared By: Group 1  ELECTRICAL PLANS AND SPECIFICATIONS PLANS AND SPECIFICATIONS 1.3.2.1 Plan Requirements Schedule of Loads Motor Loads Motors as numbered or identified in power layout Type of motor Horsepower/kilowatt/kilovolt ampere rating Voltage rating Full-load current rating Frequency rating other than 60 hertz Number of phases Type and size of wiring Protective device rating 31 August 2024 Prepared By: Group 1  ELECTRICAL PLANS AND SPECIFICATIONS PLANS AND SPECIFICATIONS 1.3.2.1 Plan Requirements Schedule of Loads Lighting and Receptacle Loads Panel as numbered in the feeder diagram Number of receptacles outlets ( convenience outlets) Number of lighting outlets in each circuit Number of switches in each circuit Circuit designation number Voltage of circuit Type and size of wiring Protective device rating 31 August 2024 Prepared By: Group 1  ELECTRICAL PLANS AND SPECIFICATIONS PLANS AND SPECIFICATIONS 1.3.2.1 Plan Requirements Schedule of Loads Other Loads Phase loading indicating full load line current Classification of service duty, if required Rating of kilovolt-ampere or kilowatt Designation number on plan Description of load Voltage rating Type and size of wiring Protective device rating 31 August 2024 Prepared By: Group 1  ELECTRICAL PLANS AND SPECIFICATIONS PLANS AND SPECIFICATIONS 1.3.2.1 Plan Requirements Design Analysis Electrical Distribution Protective Devices Voltage Drop Calculation Short Circuit Current Calculation Protection Coordination Arc-Flash Hazard Analysis 31 August 2024 Prepared By: Group 1 ELECTRICAL PLANS AND SPECIFICATIONS 31 August 2024 Prepared By: Group 1  ELECTRICAL PLANS AND SPECIFICATIONS Flame Retardant Arc Flash Arc Flash Overalls switching suit switching coat 31 August 2024 Prepared By: Group 1  ELECTRICAL PLANS AND SPECIFICATIONS PLANS AND SPECIFICATIONS 1.3.2.1 Plan Requirements One Line Diagram Lighting and Receptacle Outlet Loads Single line or schematics diagram Size of conductors Motor Loads Full load current Locked rotor current Rated voltage Type and size of wiring, indicating load in amperes Electric motors shall be numbered consecutively to correspond to their numbers in the layout Rating in kilowatts/horsepower/kilovolt ampere Phase connection for 1-phase motor on a 3-phase system 31 August 2024 Prepared By: Group 1  ELECTRICAL PLANS AND SPECIFICATIONS PLANS AND SPECIFICATIONS 1.3.2.1 Plan Requirements One Line Diagram Feeders and Subfeeders Labeling of feeders and sub feeders Size and type of wires and raceway Protective devices and controls Allowable ampacity of the conductor Load Center Labeling of load center Incoming and outgoing feeders, type, size and voltage Equipment grounding 31 August 2024 Prepared By: Group 1  ELECTRICAL PLANS AND SPECIFICATIONS PLANS AND SPECIFICATIONS 1.3.2.2 Title Block - 40 mm high at the bottom of the sheet Name and location of installation or project Name, signature and address of owner/manager/ operator Title of sheet Name, signature and seal of Professional Electrical Engineer together with PRC license number and validity, Professional Tax Receipt (PTR) Number, and Tax Identification Number (TIN) Scale used, date drawn, and Sheet number. 31 August 2024 Prepared By: Group 1  ELECTRICAL PLANS AND SPECIFICATIONS PLANS AND SPECIFICATIONS 1.3.2.3 Other Details Exposed conductors shall show: Means of support and types of insulators Spacings and clearances Auxiliary gutters, wireways, busways, cabinets, boxes, metallic raceways, underground installations, other than specified in the Code shall show: Installation details Conductor supports, separators, and attachments where required by this Code Dimensions and description or specifications. 31 August 2024 Prepared By: Group 1  ELECTRICAL PLANS AND SPECIFICATIONS PLANS AND SPECIFICATIONS 1.3.2.3 Other Details Private pole installations shall show: Construction and installation details and dimensions Pole top wiring details including line hardware Guying details. Low energy power and low voltage power installation shall show: Details of battery installation and/or other source of low voltage or low energy power Equipment, wiring, actuating mechanism and protective devices Ventilation details whenever necessary. 31 August 2024 Prepared By: Group 1 ELECTRICAL PLANS AND SPECIFICATIONS 31 August 2024 Prepared By: Group 1 ELECTRICAL PLANS AND SPECIFICATIONS 31 August 2024 Prepared By: Group 1 ELECTRICAL PLANS AND SPECIFICATIONS 31 August 2024 Prepared By: Group 1  ELECTRICAL PLANS AND SPECIFICATIONS SUBSTATION PLANS AND SPECIFICATIONS 1.3.3.1 Indoor Substation Location and dimensions of Substation in building plan drawn to scale Building with respect to entire compound or property Incoming and outgoing lines Windows, doors, and other openings Substation structural requirements Materials and construction of walls, floors, roof, windows, enclosures, doors, and their dimensions Ventilation and drainage systems and other safeguards. 31 August 2024 Prepared By: Group 1  ELECTRICAL PLANS AND SPECIFICATIONS SUBSTATION PLANS AND SPECIFICATIONS 1.3.3.1 Indoor Substation Substation electrical requirements such as Location and sizes of equipment installed Clearances and spacings between exposed current-carrying and noncurrent-carrying portions and grounding equipment Grounding system Cross sectional views showing Horizontal and vertical clearances between exposed parts and adjacent surfaces Horizontal and vertical clearances of exposed parts from floor/ceiling Finished floor level and ground level 31 August 2024 Prepared By: Group 1  ELECTRICAL PLANS AND SPECIFICATIONS SUBSTATION PLANS AND SPECIFICATIONS 1.3.3.1 Indoor Substation Miscellaneous Specification of equipment Wiring of lighting and remote control systems One-line diagram(s) of entire installation with voltage indicated Computations on size of wires, busbar, transformer, fuses, switches and breaker Class of insulation or insulators. 1.3.3.2 Outdoor Substation Outdoor substation plans must include the same details as indoor substation plans. Instead of walls and a roof, show details of the fence and supporting steel structure. 31 August 2024 Prepared By: Group 1 ELECTRICAL PLANS AND SPECIFICATIONS 31 August 2024 Prepared By: Group 1 ELECTRICAL PLANS AND SPECIFICATIONS 31 August 2024 Prepared By: Group 1 ELECTRICAL PLANS AND SPECIFICATIONS 31 August 2024 Prepared By: Group 1  requirements for electrcial installations article 1.10 1.10.1.1 Scope. This article covers general requirements for the examination and approval, installation and use, access to and spaces about electrical conductors and equipment; enclosures intended for personnel entry; and tunnel installations. 31 August 2024 Prepared By: Group 1 requirements for electrcial installations 1.10.1.2 Approval. The conductors and equipment required or permitted by this Code shall be acceptable only if approved. 31 August 2024 Prepared By: Group 1  requirements for electrcial installations 1.10.1.3 Examination, Identification, Installation, Use, and Listing (Product Certification) of Equipment. (A) Examination. (1)Suitability for installation and use in accordance with the PEC (2)Mechanical strength and durability (3)Wire-bending and connection space (4)Electrical insulation (5)Heating effects under all conditions of use (6)Arcing effects (7)Classification by type, size, voltage, current capacity, and specific use (8)Other factors contributing to the practical safeguarding of persons using or in contact with the equipment 31 August 2024 Prepared By: Group 1  requirements for electrcial installations 1.10.1.3 (B) Installation and Use. Listed or labeled equipment shall be installed and used in accordance with any instructions included in the listing or labeling. 1.10.1.3 (C) Listing. Product testing, evaluation, and listing (product certification) shall be performed by recognized qualified electrical testing laboratories and shall be in accordance with applicable product standards recognized as achieving equivalent and effective safety for equipment installed to comply with this Code. Occupational Safety and Health Administration (OSHA) 31 August 2024 Prepared By: Group 1 requirements for electrcial installations 1.10.1.4 Voltages. Throughout this Code, the voltage considered shall be that at which the circuit operates. The voltage rating of electrical equipment shall not be less than the nominal voltage of a circuit to which it is connected. 31 August 2024 Prepared By: Group 1  requirements for electrcial installations 1.10.1.5 Conductors. Conductors normally used to carry current shall be of copper or aluminum unless otherwise provided in this Code. Where the conductor material is not specified, the sizes given in this Code shall apply to copper conductors. Where other materials are used, the size shall be changed accordingly. 1.10.1.6 Conductor Sizes. Conductor sizes are expressed in metric system (SI). 31 August 2024 Prepared By: Group 1  requirements for electrcial installations 1.10.1.7 Wiring Integrity. Completed wiring installations shall be free from short circuits and from grounds other than as required or permitted in Article 2.50. 1.10.1.8 Wiring Methods. Only approved wiring methods are allowed and can be used in any building or occupancy unless otherwise specified in the Code. 1.10.1.9 Interrupting Rating. Equipment must be able to interrupt current at fault levels with a rating equal to the available current at the line terminals. For interrupting current at non-fault levels, the interrupting rating must be at least equal to the current that needs to be interrupted. 31 August 2024 Prepared By: Group 1 requirements for electrcial installations 1.10.1.11 Deteriorating Agents: Conductors and equipment must not be placed in damp, wet, or harmful environments unless specifically designed for such conditions. 1.10.1.12 Listed and Labeled When Not Required. Electrical equipment, materials and services shall not be required to be Listed and/or Labeled when local or international product and services standards do not require listing and/or labeling. 31 August 2024 Prepared By: Group 1 requirements for electrcial installations 1.10.1.13 Mechanical Execution of Work. Electrical equipment shall be installed in a neat and workmanlike manner. (A) Unused Openings. Unused openings must be closed to ensure protection similar to the equipment's wall. Metallic plugs or plates in nonmetallic enclosures must be recessed at least 6 mm from the surface. (B) Integrity of Electrical Equipment and Connections. Internal parts of electrical equipment shall not be damaged or contaminated by foreign materials. There shall be no damaged parts that may adversely affect safe operation or mechanical strength of the equipment. 31 August 2024 Prepared By: Group 1 requirements for electrcial installations 1.10.1.14 Mounting and Cooling of Equipment. (A) Mounting. Electrical equipment shall be firmly secured to the surface on which it is mounted. (B) Cooling. Electrical equipment that depends on the natural circulation of air and convection principles for cooling of exposed surfaces shall be installed so that room airflow over such surfaces is not prevented by walls or by adjacent installed equipment. 31 August 2024 Prepared By: Group 1 requirements for electrcial installations 1.10.1.15 Electrical Connections. Dissimilar Metals: Avoid mixing dissimilar metals in terminals or splicing connectors unless specifically designed for this purpose. (A) Terminals: Conductor terminals must ensure a good connection without damaging the conductors and must be made by pressure connectors (including set-screw type) or splices to flexible leads. 31 August 2024 Prepared By: Group 1 requirements for electrcial installations 1.10.1.15 Electrical Connections. (B) Splices: Conductors should be spliced with identified devices or by brazing, welding, or soldering. All splices should be insulated to match the conductor’s insulation. 31 August 2024 Prepared By: Group 1 requirements for electrcial installations 1.10.1.15 Electrical Connections. (C) Temperature Limitations: The conductor's temperature rating must align with the lowest temperature rating of any connected termination or device. Conductors with higher ratings can be used for ampacity adjustments. (D) Installation: Where tightening torque is specified, a calibrated torque tool must be used unless the manufacturer provides an alternative method. 31 August 2024 Prepared By: Group 1 requirements for electrcial installations 1.10.1.16 High-Leg Marking. In a 4-wire delta system, the high-leg conductor must be marked in orange or similar at connection points where the grounded conductor is present. 1.10.1.17 Arc-Flash Hazard Warning. Electrical equipment likely to require maintenance while energized must have arc- flash hazard warnings. Service equipment over 1200 amps needs additional labeling, including system voltage and fault current details. 1.10.1.18 Arcing Parts. Electrical parts that produce arcs or sparks must be enclosed or isolated from combustible materials. 31 August 2024 Prepared By: Group 1 requirements for electrcial installations 1.10.1.19 Light and Power from Railway Conductors. Circuits for lighting and power shall not be connected to any system that contains trolley wires with a ground return. Exception: Such circuit connections shall be permitted in car houses, power houses, or passenger and freight stations operated in connection with electric railways. 31 August 2024 Prepared By: Group 1  requirements for electrcial installations 1.10.1.21 Marking. 1.10.1.22 Identification of Electrical equipment must be marked Disconnecting Means. with the manufacturer's details and Disconnects must be marked to ratings. Reconditioned equipment must indicate their purpose. Series be labeled as such. Field-applied hazard combination systems require labels must be durable, permanent, and specific markings to indicate clearly warn of dangers. ratings and components. 31 August 2024 Prepared By: Group 1 requirements for electrcial installations 1.10.1.23 Current Transformers. Unused current transformers on live circuits must be short- circuited. 1.10.1.24 Available Fault Current. Service equipment must be labeled with the maximum available fault current. Any changes affecting fault current require recalculation and updated labeling. 1.10.1.25 Lockable Disconnecting Means. Disconnects required to be lockable must be capable of being locked in the open position, with provisions (attachment) for locking remaining in place even when not in use. 31 August 2024 Prepared By: Group 1  requirements for electrcial installations 1.10.2 1000 Volts, Nominal, or Less 1.10.2.1 Spaces About Electrical Equipment. Adequate working space is required around electrical equipment for safe operation and maintenance. Working Space: The space must comply with specific dimensions for depth, width, and height, ensuring clear access and safety. 31 August 2024 Prepared By: Group 1 requirements for electrcial installations Clear Spaces: These spaces must remain free of storage, and any exposed live parts must be guarded. Entrance: At least one entrance is needed for access, with larger equipment requiring specific entrance dimensions. Illumination: Proper lighting must be provided in working spaces around electrical equipment. Dedicated Equipment Space: Equipment like switchboards and motor control centers must be placed in protected, dedicated areas. Locked Rooms: Electrical rooms with locks are considered accessible to qualified persons. 31 August 2024 Prepared By: Group 1  requirements for electrcial installations 1.10.2.2 Guarding of Live Parts. Guarding Against Contact: Live parts operating at 50 volts or more must be guarded by enclosures, partitions, or elevation to prevent accidental contact. Prevent Physical Damage: Enclosures or guards must be strong enough to prevent damage to electrical equipment. Warning Signs: Areas with exposed live parts must have clear warning signs to keep unqualified persons out. 31 August 2024 Prepared By: Group 1 requirements for electrcial installations 1.10.3 Over 1000 Volts, Nominal 1.10.3.1 General. Conductors and equipment used on circuits over 1000 volts, nominal, shall comply with Part 1.10.1 and with 1.10.3.1 through 1.10.3.12. 1.10.3.2 Enclosure for Electrical Installations. Electrical installations in secured vaults, rooms, or areas with controlled access are considered only accessible to licensed electrical practitioners or qualified persons. (ENCLOSED WITH LOCKS). Minimum Distance from Fence to Live Parts 31 August 2024 Prepared By: Group 1 requirements for electrcial installations Table 1.10.2.3 Enclosure Selection 31 August 2024 Prepared By: Group 1 requirements for electrcial installations Table 1.10.2.3 Enclosure Selection 31 August 2024 Prepared By: Group 1 requirements for electrcial installations ENCLOSURES: TYPE 1 TYPE 3R TYPE 4X TYPE 6 TYPE 6P TYPE 12 31 August 2024 Prepared By: Group 1 requirements for electrcial installations Indoor Installations. (1) In Places Accessible to Unqualified Persons. Indoor electrical installations that are accessible to unqualified persons shall be made with metal enclosed equipment. Switchgear, transformers, pull boxes, connection boxes, and other similar associated equipment shall be marked with appropriate caution signs. 31 August 2024 Prepared By: Group 1  requirements for electrcial installations Indoor Installations. (2) During installations, qualified person can only access the electrical related works, under the supervision of a Licensed Electrical Practitioner only. Outdoor Installations. (1) In Places Accessible to Unqualified Persons. Outdoor electrical installations that are open to unqualified persons shall comply with Parts 2.25.1 , 2.25.2, and 2.25.3. The articles above covers requirements for outside branch circuits and feeders run on or between buildings, structures, or poles on the premises. (2) In Places Accessible to Licensed electrical practitioner or qualified person under the supervision of a licensed electrical practitioner only. 31 August 2024 Prepared By: Group 1 requirements for electrcial installations Outdoor Installations. Enclosed Equipment Accessible to Unqualified Persons. Equipment located outdoors and are accessible to unqualified persons shall be designed such that exposed nuts or bolts cannot be readily removed. (locked, bolted, or screwed on). 1.10.3.3 Work Space About Equipment. Sufficient space shall be provided and maintained about electric equipment to permit ready and safe operation and maintenance. Where energized parts are exposed, the minimum clear work space shall not be less than 2000 mm high. 31 August 2024 Prepared By: Group 1  requirements for electrcial installations 1.10.3.4 Entrance and Access to Work Space. (A) Entrance. At least one entrance not less than 600 mm wide and 2000 mm high shall be provided to give access to the working space about electric equipment. (1) Large Equipment. On switchgear and control panels exceeding 1800 mm in width, there shall be one entrance at each end of the equipment. (2) Guarding. Bare energized parts at any voltage, or insulated energized parts above 1000 volts, located near an entrance must be suitably guarded. (3) Personnel Doors. Within 7600 mm of the working space must open in the direction of egress and be equipped with listed panic hardware. 31 August 2024 Prepared By: Group 1 requirements for electrcial installations 1.10.3.4 Entrance and Access to Work Space. (B) Access. Permanent ladders or stairways shall be provided to give safe access to the working space around electric equipment installed. 31 August 2024 Prepared By: Group 1  requirements for electrcial installations 1.10.3.5 Work Space and Guarding. (A) Working Space. a clear working space shall be provided according to the Code. (B) Separation from Low-Voltage Equipment. High-voltage equipment (over 1000 volts) must be separated from low-voltage equipment (1000 volts or less) by a suitable partition, fence, or screen to ensure safety. (C) Locked Rooms or Enclosures. Buildings or enclosures with exposed live parts over 1000 volts must be locked, with access allowed only under continuous monitoring by a licensed electrical practitioner. 31 August 2024 Prepared By: Group 1 requirements for electrcial installations 1.10.3.5 Work Space and Guarding. (D) Illumination. Illumination shall be provided for all working spaces about electrical equipment. (E) Elevation of Unguarded Live Parts. Unguarded live parts above working space shall be maintained. (F) Protection of Service Equipment, Switchgear, and Industrial Control Assemblies. Pipes or ducts unrelated to the electrical system should not be near electrical equipment. Protection is needed against leaks, except for fire protection pipes. 31 August 2024 Prepared By: Group 1 requirements for electrcial installations 1.10.3.7 Circuit Conductors. Circuit conductors shall be permitted to be installed in raceways; in cable trays; as metal-clad cable, as bare wire, cable, and busbars. 31 August 2024 Prepared By: Group 1  requirements for electrcial installations 1.10.3.12 Inspections and Tests (A) Pre-energization and Operating Tests. must be conducted with the complete electrical system design, including settings for protective, switching, and control circuits, prepared in advance as required by this Code. (B) Test Report. A test report covering the results of the tests required in 1.10.3.I2(A) shall be available prior to energization and made available to those authorized to install, operate, test, and maintain the system. 31 August 2024 Prepared By: Group 1  requirements for electrcial installations 1.10.4 Tunnel Installations over 1000 Volts, Nominal 1.10.4.2 Overcurrent Protection. Motor-operated equipment shall be protected from overcurrent in accordance with Parts 4.30.3, 4.30.4, and 4.30.5. 1.10.4.3 Conductors. High-voltage conductors in tunnels shall be installed in metal conduit or other metal raceway. 1.10.4.4 Bonding and Equipment Grounding Conductors. (A) Grounded and Bonded. All non-current-carrying metal parts of electrical equipment, metal raceways, and cable sheaths must be effectively grounded and bonded to all metal pipes and rails. (B) Equipment Grounding Conductors. An equipment grounding conductor shall be run with circuit conductors inside the metal raceway or inside the multiconductor cable jacket. 31 August 2024 Prepared By: Group 1 requirements for electrcial installations 1.10.4 Tunnel Installations over 1000 Volts, Nominal 1.10.4.5 Transformers, Switches, and Electrical Equipment. All transformers, switches, motor controllers, motors, rectifiers, and other equipment installed below the ground shall be protected from physical damage by location or guarding. 1.10.4.6 Energized Parts. Transformers, switches, and motor equipment should be enclosed to prevent accidental contact with live parts. 1.10.4.7 Ventilation System Controls. Electrical controls for the ventilation system shall be arranged so that the airflow can be reversed. 1.10.4.8 Disconnecting Means. A switch or circuit breaker that disconnects all live wires at once must be installed where it can be seen near each transformer or motor. 1.10.4.9 Enclosures. Enclosures for use in tunnels shall be dripproof, weatherproof, or submersible as required by the environmental conditions. 31 August 2024 Prepared By: Group 1  requirements for electrcial installations 1.10.5 Manholes and Other Electric Enclosures Intended for Personnel Entry 1.10.5.1 General. Electric enclosures designed for people to enter must be large enough to allow safe working space. 1.10.5.2 Strength. Manholes, vaults, and their means of access shall be designed under qualified engineering supervisions. 1.10.5.3 Cabling Work Space. A clear work space not less than 900 mm wide shall be provided. 31 August 2024 Prepared By: Group 1  requirements for electrcial installations 1.10.5 Manholes and Other Electric Enclosures Intended for Personnel Entry 1.10.5.4 Equipment Work Space. For electric equipment with live parts in manholes, vaults, or similar enclosures, the work space must meet the requirements of 1.10.2.1. (eg. Warning signs, enclosures, locks, accessible only for licensed electricians and electrical engineers). 1.10.5.5 Bending Space for Conductors. All conductors must be properly cabled, racked, or arranged to ensure safe and easy access. 1.10.5.6 Access to Manholes. (A) Dimensions. Rectangular access openings shall not be less than 650 mm x 550 mm. (B) Obstructions. Manhole openings shall be free of protrusions (bumps). (C) Location. Manhole openings for personnel shall be located where they are not directly above electric equipment or conductors. (D) Covers. Covers shall be over 45 kg or otherwise designed to require the use of tools to open. (E) Marking. Manhole covers shall have an identifying mark or logo that prominently indicates their function, such as "electric." 31 August 2024 Prepared By: Group 1  requirements for electrcial installations 1.10.5. 7 Access to Vaults and Tunnels. (A) Location. Access openings for personnel shall be located where they are not directly above electric equipment or conductors. (B) Locks. Access openings must allow someone inside to exit even if the door is locked from the outside. If a padlock is used, it should be set up so that it can’t lock the door from the outside. 1.10.5.8 Ventilation. Open air shall be provided wherever practicable. 1.10.5.9 Guarding. Where conductors or equipment, or both, could be contacted by objects falling or being pushed through a ventilating grating, both conductors and live parts shall be protected. 1.10.5.10 Fixed Ladders. Fixed ladders shall be corrosion resistant 31 August 2024 Prepared By: Group 1  END OF PRESENTATION 31 August 2024 Prepared By: Group 1