Our insurance agency safety rep met with the local OSHA director, who confirmed that he is issuing citations for portable GFCIs plugged into temporary wiring GFCIs on construction sites, claiming that OSHA enforcement officers have investigated past accidents where inline GFCIs have somehow interfered with eachother to prevent tripping. We think they are confused, noting for example hair dryers with built-in GFCI protection that plug into bathroom receptacles required to be GFCI-protected, and GFCI receptacles built into aerial lifts connected by extension cords that also must be GFCI-protected. There are no labeling restrictions on portable GFCIs to prohibit plugging into upstream GFCIs, but still we have difficulty proving a negative. Can anyone provide definitive help? (This question is similar to ?multiple GFCI outlets? on the Grounding versus Bonding forum, but we need authoritative rather than practical advice.)
OSHA-Inline GFCI's
- Thread starter treidenb
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You will be hardpressed to find authoratative documentation on a requirement that don't exist. Some requirements leave a gray area for which there are usually formal interpretations accessible on the OSHA website... I could not find one regarding this matter. Getting back to your plight, your best course of action is to formally ask your question to OSHA...
http://www.osha.gov/html/Feed_Back.html
See section titled: IF YOU HAVE WORKPLACE SAFETY AND HEALTH RELATED QUESTIONS:
http://www.osha.gov/html/Feed_Back.html
See section titled: IF YOU HAVE WORKPLACE SAFETY AND HEALTH RELATED QUESTIONS:
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