I have a problem where there is up to five boards president 60 Hz on the house ground. A technician came and said that that voltage can back feed into diodes on certain PCB boards on appliances and ruin it if The ground voltage is higher than the diode handling voltage.
If the voltage with higher it could easily shock somebody if they touched any surface of the appliances, which the voltage is present on also.
However An electrician came and said that that’s normal. I have a hard time believing this and was wondering if there’s any NEC code related to this problem in terms of having to eliminate it before the work was done?
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If the voltage with higher it could easily shock somebody if they touched any surface of the appliances, which the voltage is present on also.
However An electrician came and said that that’s normal. I have a hard time believing this and was wondering if there’s any NEC code related to this problem in terms of having to eliminate it before the work was done?
Sent from my iPhone using Tapatalk