Is a disconnecting means required to be installed for a fluorescent fixture upon ballast replacement?
(Nov. 18, 2009) No. The state and national electrical code requirements are generally not retroactive. NEC Section 410.130 (G) requires a disconnecting means for fluorescent luminaires (lighting fixtues) that utilize double-ended lamps and that contain ballast(s) that can be serviced in place. The disconnect is required to be located so as to be accessible to individuals servicing the ballast(s). The disconnecting means must simultaneous break all supply conductors to the ballast, including a grounded conductor, if the fixture is supplied by a multi-wire branch circuit. The general requirement for a disconnecting means for applicable luminaires has fIve exceptions. The requirement specifically refers to a disconnecting means-for the luminaire. If the entire luminaire is replaced; the requirement applies. If the luminaire was installed prior to 9/1/05, this requirement does not apply when the ballasts are replaced. 4. NEC 2008, Section 200.2(B) Continuity, states:”The continuity of the
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