Handy hank
Member
- Location
- Round Hill, VA
I have a nagging problem about measuring electric current on metal water and gas line coming into my daughter's home. At the outset, 4-6 Amps were read on the water line. It fluctuates depending on what loads are on in the home. A toaster oven drawing 15 Amps causes an increase of 3 Amps on the water line. 2 electricians have come to inspect and not found any wiring problems in grounding system, and the power company came to measure the net current on the main service line who found 1.2 Amps flowing despite the Main CB being OFF. With main CB on, about 2 Amps was measured. The power company says there's no problem in the house, and the electricians can't find anything wrong. Discussions ensue that involves there maybe being a problem at a neighboring home.
Does the "residual" (or possibly "objectionable" per NEC 250) current flowing despite the Main CB being OFF constitute a problem in the home OR a problem in a neighboring home cross feeding into my daughter's home?
What amount of current measured on the water line or gas line is acceptable?
Does this residual current flowing register on the watt-hour meter despite the Main CB being OFF?
Does the "residual" (or possibly "objectionable" per NEC 250) current flowing despite the Main CB being OFF constitute a problem in the home OR a problem in a neighboring home cross feeding into my daughter's home?
What amount of current measured on the water line or gas line is acceptable?
Does this residual current flowing register on the watt-hour meter despite the Main CB being OFF?