Sump Pump

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mickeyrench

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edison, n.j.
i always though sump pumps that are under water that the wiring were suppose to be hermeticly sealed. last week the maintenance dept. removed a pump to replaced the cord and the terminal box had only a gasket to seal the wiring. is this a common wiring setup?
 
mickeyrench said:
i always though sump pumps that are under water that the wiring were suppose to be hermeticly sealed. last week the maintenance dept. removed a pump to replaced the cord and the terminal box had only a gasket to seal the wiring. is this a common wiring setup?
They're sealed, and normally also oil filled. When this seal fails, the sump pump starts to trip the GFCI and ultimately fails altogether.
 
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sumps

mickeyrench said:
i always though sump pumps that are under water that the wiring were suppose to be hermeticly sealed. last week the maintenance dept. removed a pump to replaced the cord and the terminal box had only a gasket to seal the wiring. is this a common wiring setup?
they are 3 phase 480volt . would they need gfci protection.
 
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