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This is not an official copy of the. This is a Design Guide according to the provisions of the. It also provides interpretation and annotations of the clauses of the. Any information, interpretation and/or annotation presented herein are based on personal opinion of the authors and does not represent the official interpretation of the.

While the authors have used good faith and efforts to ensure that the information and instructions contained in this work are accurate, the authors disclaim all responsibility for errors or omissions, including without limitation responsibility for damages resulting from the use of or reliance on this work. Use of the information and instructions contained in this work is at your own risk. If any contents or other technology this work contains or describes is subject to open source licenses or the intellectual property rights of others, it is your responsibility to ensure that your use thereof complies with such licenses and/or rights Note: This is a work in progress. The primary purpose of the Philippine Electrical Code is to minimize the risk of electricity as a source of electric shock and as a potential ignition source of fires and explosions; and to minimize the propagation of fire and explosions due to electrical installations. (b) Adequacy.

This Code contains provisions that are considered 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. 1: 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 will provide for future increases in the use of electricity. FPN No 2: It is highly recommended that a licensed electrical practitioner be consulted for any electrical requirements, including changes.Failure to do so may result in fire, serious injury, or death. 3: Fire hazard, electrocution, serious injury or even death may also occur with lack or improper maintenance of wiring system. Wiring system is recommended to be inspected and tested by a licensed electrical practitioner at least once a year for wiring system of more than three (3) years in installation. Future expansion should always be given consideration when designing any electrical system.

Future expansion may be unlikely in some new installations, but most of time, it is wise to plan an initial installation that allows for future additional loads, modifications, or designs. Ratings of conductors, switchboards and/or transformers need to be selected properly given these considerations without sacrificing initial cost. (c) Intention.