Section 3
Why do we use interlocks? To conform with various standards in our
industry:
NFPA33 – Standard for Spray Application Using Flammable or
Combustible Materials
NFPA86 – Standard for Ovens and Furnaces
ANSI Z83.4 – Non-recirculating direct gas-fired industrial air
heaters
UL844 – Standard for Luminaires for use in Hazardous (Classified)
Locations
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