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NOTE: This is an unformatted excerpt from our online fire protection training library.

Authorities and Requirements

Fire Alarm System Fundamentals

Introduction to Power Supplies

The requirements for electrical power supplies are found in the NEC in a number of different areas. The section listing the power supply requirements depends on the equipment being powered. Article 760 contains specific requirementsKeep in mind that the purpose of the NEC is to keep everything safe. The NEC is a safety document first, and the requirements all consider safe installation. for fire alarm power supplies, but there are also other articles in Chapters 1 through 4 of he NEC that will apply.

This is not a good example of a good, dependable power supply as outlined in the NEC or NFPA 72.














NFPA 72, the National Fire Alarm Code, has specific requirements for the power supplies for a fire alarm system, but NFPA 72 doesn’t repeat the requirements of the NEC. Rather, the NEC is listed as a reference in the National Fire Alarm Code.
NOTE: This is an unformatted excerpt from our online fire protection training library.

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