Covers ballasts of insuctive and capacitive types (excluding resistance type) for use on a.c. supplies up to 250 V at 50 Hz or 60 Hz, associated with tubular fluorescent lamps with pre-heated cathodes operated with or without a starter switch and hav
KS 306:1984
Specification for ballast for use in fluorescent lamps.
Number of Pages:80
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Kes 7,416.00