CE 313: Building System Design PDF

CE 313: BUILDING SYSTEM DESIGN PREPARED BY: ENGR. IZA MARIE G. LEOP  Outline Electrical System Rule XIII of the IRR of the NBCP: Electrical Regulations Philippine Electrical Code Other Building Service Systems Electrical Syste...

CE 313: BUILDING SYSTEM DESIGN PREPARED BY: ENGR. IZA MARIE G. LEOP  Outline Electrical System Rule XIII of the IRR of the NBCP: Electrical Regulations Philippine Electrical Code Other Building Service Systems Electrical System Source: Rule XIII of IRR of the NBCP  Rule XIII: Electrical and Mechanical Regulation Section 1301. Electrical Regulations “All electrical systems, equipment, and installations mentioned in the Code shall conform to the provisions of the Philippine Electrical Code Part 1 (PEC-1) and Part 2 (PEC-2), as adopted by the Board of Electrical Engineering pursuant to Republic Act 7920, otherwise known as the Philippine Electrical Engineering Law.” Section 1301.2.a. Attachments on Building A plan approved by professional electrical engineer shall cover power lines and cables, transformers, and other electrical equipment installed on or in buildings and shall be submitted to the local Building Official. Source: Rule XIII of IRR of the NBCP  Rule XIII: Electrical and Mechanical Regulation Section 1301.3. Open Supply Conductors Attached to Buildings ✓ Conductors of more than 300V to ground shall not be carried along or near the surface of the buildings unless they are guarded or made inaccessible. ✓ To promote safety to the general public… conductors and other current-carrying parts of electrical supply lines shall be arranged so as to provide adequate clearance from the ground or other space generally accessible, or shall be provided with guards so as to isolate persons effectively from accidental contact. ✓ Ungrounded service conduits, metal fixtures, and similar noncurrent-carrying parts, if located in urban districts and where liable to become charged to more than 300V to ground shall be isolated, guarded, or grounded to avoid accidental contact by unauthorized persons. Source: Rule XIII of IRR of the NBCP  Rule XIII: Electrical and Mechanical Regulation Section 1301.4. Conductors Passing By or Over Building ✓ Unguarded or accessible supply conductors carrying voltages in excess of 300V may be either beside or over buildings, subject to the following clearances: ✓ Supply conductors placed near enough to windows, verandas, fire escapes, or other ordinarily accessible places, shall be properly guarded by grounded conduit and barriers. ✓ Where the required clearances cannot be obtained, supply conductors shall be grouped or bundled and supported by grounded messenger wires. Source: Rule XIII of IRR of the NBCP Rule XIII: Electrical and Mechanical Regulation Source: Rule XIII of IRR of the NBCP Rule XIII: Electrical and Mechanical Regulation Section 1301.5. Clearance of Service Drops ✓ Service drop conductors shall have a clearance of: ✓ at least 2.50m from the highest point of roofs over which they pass (with a few exemptions) ✓ at least 3.00m from the ground ✓ at least 1.00m horizontally from windows, doors, porches, fire escapes, or similar locations and shall be run less than 1.00m above the top level of a window or opening ✓ No parts of swimming and wading pools (including areas extending 3.00m horizontally from the inside walls of the pool) shall be placed under existing service drop conductors or any overhead wiring Source: Rule XIII of IRR of the NBCP  Rule XIII: Electrical and Mechanical Regulation Section 1301.6. Wiring Methods ✓ Service conductors shall be installed in rigid steel conduit or concrete encased plastic conduit from point of service drop to meter base and from meter base to the disconnecting equipment. ✓ For service conductors protected by approved fuses or breakers at their terminals, they may be installed in any of the recognized wiring methods as provided by PEC-1. ✓ Abandoned lines shall be removed. Source: Rule XIII of IRR of the NBCP  Rule XIII: Electrical and Mechanical Regulation Section 1301.9. Capacitor ✓ Installed capacitors on electric circuits in any single unit of more than 11L of flammable liquid shall be in a vault or outdoor fence enclosures complying with PEC-1. ✓ Capacitors shall be protected from physical damage by location and be provided with non- combustible cases and supports. Source: Rule XIII of IRR of the NBCP  Philippine Electrical Code Objectives ✓ Safe Use of Electricity: to establish basic materials quality and electrical work standards for the safe use of electricity for light, heat, power, communications, signaling and for other purposes. ✓ Adequacy: Strict compliance with the provisions of this Code will ensure safety in electrical installation and construction, but not necessarily efficient, convenient, or adequate for good service or future expansion of electrical use. PEC I - Electrical installation inside buildings. PEC II - Electrical installation outside buildings. Source: Philippine Electrical Code Summary (link here)  Philippine Electrical Code Scope PEC covers the electric conductors including optical fiber cable and installed within or on, to or from: 1. Public and private buildings 2. Electrical generating plants 3. Temporary and permanent substations 4. Industrial plants 5. Transformer stations 6. Railway switchyards 7. Yards, carnival, parking, etc. 8. Watercraft 9. Dockyards 10. Airfields 11. Quarries and mines 12. Mobile homes, travel trailers and recreational vehicles 13. Offshore facilities 14. Other premises which requires electrical installation except to those which are done in; a) aircraft, b) motor vehicles, c) railway rolling stocks Source: Philippine Electrical Code Summary (link here)  Philippine Electrical Code Electrical Permit An application form (DPWH form No. 77-001-E) shall be accomplished, signed and submitted by a duly registered Professional Electrical Engineer. However, if the installation does not exceed 20 lighting and/or receptacle outlets or 4000 volt-amperes, 230 volts, the application may be prepared, signed and submitted by a duly registered electrical engineer or master electrician. Standard Electrical Plan General Notes and Specifications Legend and Symbols Riser Diagram Electrical Lighting and Power Lay-out Schedule of Loads and Computations Source: Philippine Electrical Code Summary (link here) Electrical System Building Services Building Services Building services are the systems installed in buildings to make them comfortable, functional, efficient, and safe. Basically, it is all about making buildings meet the needs of the people who live and work in them. “In any new construction, building services typically account for 30-40% of the total cost” As such, building services design must be integrated into the overall building design from a very early stage. Building Services Security and Alarm Systems It is to keep the property and the people inside it safer. These systems communicate with the outside world using a cellular connection or a landline  Building Services Telephone and IT Networks Electronic plans and specifications for wired or wireless telecommunications and Escalators and Elevators other such systems shall be prepared and Transport systems within a building. Section signed by an Electronics Engineer (Section 1204. Section 1302.5, and 1302.6 of the NBCP 302) IRR are about elevators and escalators.  Building Services HVAC Systems HVAC stands for heating, ventilation, and air Fire Alarm Systems conditioning. It moves air between indoor and The main purpose of a fire alarm system is to outdoor areas; ensuring that the indoor inform all humans in the building that there is a fire environment is both safe and comfortable for so that they can evacuate accordingly. For fire humans. Mechanical regulations are found on extinguishing systems, regulations are provided in Section 1302 of the NBCP IRR. Section 1212 of the NBCP IRR.  Laboratory Exercise Electrical Drawings General Notes and Specifications Legend and Symbols Riser Diagram Electrical Lighting and Power Lay-out Schedule of Loads and Computations Send your Schedule of Loads as a pdf file in the google classroom. Only one submission per group. To be submitted by November 16 and November 18. Prepare for a quiz by November 9 and November 11. Coverage is Week 10 and 11. Thank You!