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Discharge Lamps And Ballasts
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Guidelines s on n E n e r g y y E ffi cie n cy y o f ...
www.emsd.gov.hkelectromagnetic ballasts may fall outside the limits. The 2007 edition of the Lighting Code has stipulated control on the electronic ballasts for all lamp types such as metal halide lamps and high pressure sodium lamps, which is to follow The Hong Kong Voluntary Energy Efficiency Labelling Scheme for Electronic Ballasts of EMSD.
NEC 2017 Code Changes Chapter 3 - Wiring Methods and …
allstarce.comraceway. Secondary wiring to electric-discharge lamps of 1000 volts or less, if insulated for the secondary voltage involved, shall be permitted to occupy the same luminaire, sign, or outline lighting enclosure as the branch-circuit conductors. Informational Note No. 1: See 725.136(A) for Class 2 and Class 3 circuit conductors.