Philippine Electrical Code (PEC) 2017 PDF

THE PHILIPPINE ELECTRICAL CODE ✓ The PEC is a safety standard. Electrical designs must comply with the requirements of PEC to ensure safety. ✓ The code is more of a catalogue of rules for an electrical installation. ✓ The Code’s “definition of term” is NOT the same as a definition for the...

THE PHILIPPINE ELECTRICAL CODE ✓ The PEC is a safety standard. Electrical designs must comply with the requirements of PEC to ensure safety. ✓ The code is more of a catalogue of rules for an electrical installation. ✓ The Code’s “definition of term” is NOT the same as a definition for the same word in a standard dictionary. 2 CLASSIFICATION OF CODE RULES 1.Wiring Design Rules 2.Installation Rules 3.Manufacturing Rules 3 ✓ Wiring Design Rules - used to determine sizes and rating of circuit conductors and devices. Example: 1. Branch circuit conductors supplying a single motor shall have an ampacity not less than 125% of the full-load current. Section 4.30.2.2 2. The disconnecting means for motor circuits shall have an ampere rating of at least 115% of the full-load current rating of the motor. Section 4.30.10.10(a) 4 ✓ Installation Rules Example: 1. A disconnecting means shall be located within sight from the motor controller. (Section 4.30.102) 2. In class II Division I Locations, motors, generators, and other rotating electric machinery shall be dust ignition proof or totally enclosed pipe ventilated and shall be approved for class II locations. (Section 5.02.8) 5 ✓ Manufacturing Rules Example: ✓ Section 4.30.1.7: A motor shall be marked with the following information: 1. Manufacturer’s Name 2. Rated Volts and Full-load Amperes 3. Rated Frequency and Number of Phases, if an alternating current motor, etc. 4. Rated full-load speed 6  PEC 2017 ▪ It supersedes all previous editions of the code dated 1962, 1969, 1973, 1980, 1985, 1992, 2000, and 2009. ▪ Regularly revised (every three years) to reflect the evolution of products, materials, and installation techniques. ▪ PEC is considered as the “Bible” of electrical practitioners in the Philippines ▪ The preparation of PEC 2017 started in 2016 and completed in 2017 7 PEC 2017 ▪ It started with NEC 2014 as the basis, but in the end, adopted NEC 2017 which became available September 2016 ▪ NEC 2017 was found out to be most appropriate and applicable to Philippine Setting. ▪ PEC 2017 PART 1 has been crafted in order to clarify ambiguities and to facilitate easy use and understanding so that the electrical practitioners will be properly guided. 8 PEC 2017 “PROFESSIONAL REGULATORY BOARD OF ELECTRICAL ENGINEERING RESOLUTION NO. 18, SERIES 2017” Adoption of the 9th Edition of the 2017 revised Philippine Electrical Code (PEC) Part 1 as part of the Rules and Regulations governing the practice of electrical engineering and as a referral code in accordance with the National Building Code. 9 PEC 2009 Part 1: Volume 1 – consists of rules which regulates electrical installation done INSIDE the building Volume 2 – consists of rules which regulates electrical construction, installation, operation, and maintenance of the electrical propulsion machinery, electrical equipment and wiring system for WATERCRAFTS 10 PEC 2017 Part 1 - consists of rules which regulates electrical installation done INSIDE the building including WATERCRAFT (previously included in PEC 2009, Part 1, Volume 2) Part 2 - consists of rules which regulates electrical installation done OUTSIDE the building - UNDER REVISION at present 11 Purpose of PEC? (A) Practical Safeguarding. The purpose of the Code is the practical safeguarding of persons and property from hazards arising from the use of electricity. The Code is intended to be used by those who are skilled and knowledgeable in electrical theory, electrical systems, building and electrical construction, and the installation and operation of electrical equipment. 12 (B) Adequacy. The code contains provisions that are considered the minimum requirements necessary for safety. Compliance therewith and proper maintenance will result in an installation that is essentially free from hazard but not necessarily efficient, convenient, or adequate for good service or future expansion of electrical use. FPN: Hazards often occur because of overloading of wiring systems by methods or usage not in conformity with this code. This occurs because initial wiring did not provide for increases in the use of electricity. An initial adequate installation and reasonable provisions for system changes provide for future increases in the use of electricity. 13 14 The PEC does not require electrical systems to be designed or installed to accommodate future loads. However, the electrical designer (typically an electrical engineer) is concerned with not only ensuring electrical safety (Code compliance), but also that the electrical system meets the customers' needs, both for today and in the corning years. To satisfy their needs, electrical systems are often designed and installed above the minimum requirements contained in the PEC. 15 PEC Intention This code is intended as a design specification or an instruction manual to qualified persons. Relation to Other International Standards The requirements in this Code address the fundamental principles of protection for safety contained in Section 131 of International Electrotechnical Commission Standard 60364-1, Electrical Installations of Buildings. 16 FPN: IEC 60364-1, Section 131. Contains fundamental principles of protection for safety that encompasses protection against thermal effects, protection against overcurrent, protection against fault current, and protection against overvoltage. All of these potential hazards are addressed by the requirements in this Code. 17 Authority Who authorized the used of PEC? a. Board of Electrical Engineering (BEE) The BEE has maintained a credible and reliable stand in the formulation, preparation and conduct of examinations. ✓ Hon. Francis V. Mapile (Chairman) ✓ Hon. Jaime V. Mendoza (member) E L E D E S I - 2021 18 Hon. Francis V. Mapile Hon. Jaime V. Mendoza Chairman Member 19 b. Professional Regulation Commission (PRC) E L E D E S I - 2021 20 c. New Electrical Engineering Law - RA 7920 Republic Act. No. 7920 is an Act providing for a more responsive and comprehensive regulation for the practice, licensing, and registration of electrical engineers and electricians. This Act is also known as the “New Electrical Engineering Law”. E L E D E S I - 2021 21 Enforcement Who enforces the PEC? A. The code is intended for mandatory application by the Office of the Building Official/EE over electrical installations. B. The office of the Building Official (OBO)/EE shall have the responsibility of implementing the provision of this code. 22 C. This Code may require new products, constructions, or materials that may not yet be available at the time this Code is adopted. In such event, the OBO/EE may permit the use of the products, constructions, or materials that comply with the most recent previous edition of this Code adopted by the NBC. 23  Cities - Office of the Supervising City Electrical Engineer or City Electrician Municipalities - Office of the Supervising Municipal Electrical Engineer or Electrician Regions - Regional Office of the Department of Public Works and Highway 24 What are the different categories of rules in PEC? a. Mandatory Rules Characterized by the used of the terms shall or shall not b. Permissive Rules Characterized by the use of the terms shall be permitted or shall not be required. 25 What is meant by explanatory material? It is just a references to other standards, references to related sections of the Code, or information related to a Code rule in the form of fine print note (FPN). Fine print notes are informational only and are not enforceable as requirement of the code. 26  E L E D E S I - 2021 27 Appendices - are NONMANDATORY information relative to the use of the Code. - are NOT PART of the enforceable requirements of the Code, but are included for information purposes only. 28 Interpretation - Interpretation of the Code shall be by licensed electrical practitioners. - In case of conflict about the interpretations of the PEC, these may be referred to the PEC Part 1 Committee for interpretation. - Should disagreement remain, thereafter, the Committee’s interpretation shall be referred to the BOARD OF ELECTRICAL ENGINEERING (BEE) who shall render the final decision. 29 Unit of Measurements - Metric units of measurement in accordance with the modernized metric system known as the International System of Units (SI). What are the different “Referral C o d e s ” of PEC? a. National Building Codes (PD 1096) b. Fire Code of the Philippines (PD 1185) c. Structural Code 30 What are the different chapters of PEC? Chapter 1 – General Chapter 2 – Wiring and Protection Chapter 3 – Wiring Methods & Materials Chapter 4 – Equipment for General Use Chapter 5 – Special Occupancies Chapter 6 – Special Equipment Chapter 7 – Special Conditions Chapter 8 – Communications Systems Chapter 9 – Watercrafts Chapter 10 - Tables 31 How can we easily identify the different chapters, articles, parts, and sections of PEC? As per PEC numbering, SINGLE DIGIT NUMBER ---- Chapter TWO DIGIT NUMBERS ------ Articles THREE DIGIT NUMBERS ---- Parts FOUR DIGIT NUMBERS ----- Section 32 What are the coverages or scopes of PEC? The Code covers the installation of electrical conductors, equipment, and raceways; monitoring, signaling, and communications conductors, equipment, and raceways; and optical fiber cables, and equipment installed within or on, to or from: 33  What are the coverage or scope of PEC? The Code covers the installation of electrical conductors, equipment, and raceways; monitoring, signaling, and communications conductors, equipment, and raceways; and optical fiber cables, and equipment installed within or on, to or from: 34  E L E D E S I - 2021 35 36  1. Public and private buildings, including but not limited to residential, commercial, industrial, institutional, cultural, agricultural, agro-industrial, planned unit development and all other buildings/premises that may require practical safeguarding of persons and property from the hazards arising from the use of electricity. 37 38 39 40  Cultural Building – Cultural Center of the Philippines 41 Agricultural Building 42  Agricultural Building AGRICULTURAL MACHINERY TESTING AND EVALUATION CENTER College of Engineering and Agro-Industrial Technology University of the Philippines Los Baños Pili Drive, College, Laguna 43 2. electric generating plants 3. industrial plants 4. transformer stations 5. permanent & temporary substations, etc. 6. airfields 7. railways switchyards 44  E L E D E S I - 2021 Electric generating plant - coal 45 Industrial plant (ex. shell, caltex, petron refinery) 46 Industrial plant 47 Transformer station 48 Transformer stations 49 Temporary Substation 50 Temporary Substation 51 airfield 52 Railways Switchyards 53 8. yards, carnivals, parks, parking and other lots 9. quarries and mines 10. watercraft 11. dockyards 12. trailers 13. mobile homes and recreational vehicles 14. offshore facilities 54 yards, carnivals, parking and other lots 55  Quarries and mines Quarry - a place, typically a large, deep pit, from which stone or other materials are or have been extracted. a granite quarry Mines - an excavation in the earth for extracting coal or other minerals: a copper mine. 56 Granite Quarry 57 Copper mines 58  watercrafts The term watercraft covers a range of different vehicles including ships, boats, hovercraft and submarines, and differs from a simple device that merely floats, such as a log raft. 63 trailer 60 dockyard 61 Mobile home 62 Mobile home 63 Mobile home 64 Recreational vehicle 65 Recreational vehicle 66 Offshore facility 67 Offshore facility 68 NOT covered by the PEC (1) Installations in: a. railway rolling stocks - Rolling stock comprises all the vehicles that move on a railway. It usually includes both powered and unpowered vehicles, for example locomotives, railroad cars, coaches and wagons. b. Automotive vehicles c. aircrafts 69 Railway rolling stock 70 Railway rolling stock 71 aircraft 72 Motor vehicle 73 Electrical Engineering Department Motor vehicle 74 (2) Installations of railways for generation, transformation, transmission, or distribution of power used exclusively for operation of rolling stock. 75