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NFPA 13: Installation of Sprinkler Systems helps reduce risks and fire loss with proven fire protection strategies.
Long considered the benchmark for automatic fire sprinkler systems, NFPA 13 presents consensus-based requirements for sprinkler system design approaches, installation, and component options. Compliance is essential to sprinkler performance, which in turn significantly reduces the risks of fire deaths and property loss. Each new edition of NFPA 13 reflects added knowledge about sprinkler performance under fire conditions. Changes are based on scientific research and a wide body of industry experience.
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Sample (NEC® 2014)
411.2411.3 Definition. Low-Voltage Lighting Systems.
(A) General. Lighting Ssystems Ooperating at 30 Volts- volts or Less. A lighting system consisting less shall consist of an isolating power supply, the low-voltage luminaires, and associated equipment that are all identified for the use. The output circuits of the power supply are shall be rated for not more than 25 amperes and operate at 30 volts (42.4 volts peak) or lessmaximum under all load conditions.
(B) Class 2. Listed Class 2 lighting equipment shall be rated in conformance with Chapter 9, Table 11(A) or Table 11(B).
411.3411.4 Listing Required. Lighting systems operating at 30 volts or less shall comply with 411.3(A)411.4(A) or
411.3(B).411.4(B). Class 2 power sources and lighting equipment connected to Class 2 power sources shall be llisted.