What I found today, Be sure to visually inspect disconnects! scary

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charlietuna

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We came across two out of eight 100 amp - 480 volt feeding rooftop A/C units with two blades engaged with the switch in the "OFF" position. Consider an A/c mechanic doing maintainance??? The building owner had us change(upgraded) them all to another manufacturer with a metallic shaft. The other six showed signs of destortion too. The switches were sized tight--but legal and located on a wall facing the afternoon sun.
 
weressl

weressl

Esteemed Member
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Texas by the Gulf, geat crab, great shrimp
charlietuna said:
We came across two out of eight 100 amp - 480 volt feeding rooftop A/C units with two blades engaged with the switch in the "OFF" position. Consider an A/c mechanic doing maintainance??? The building owner had us change(upgraded) them all to another manufacturer with a metallic shaft. The other six showed signs of destortion too. The switches were sized tight--but legal and located on a wall facing the afternoon sun.
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Just another example when tested - UL? - and approved - AHJ - is just not enuff! Ya gotta use yer noggin' no matetr how much it hurts....;)
 
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