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Distribution and use of electricity throughout the home. Electrical standards vary greatly worldwide, so you need to provide your location in your question or profile to ensure you get answers that are relevant to you. Posting photographs of wiring junctions or drawing a wiring diagram and posting it is also highly recommended.

1 vote
1 answer
231 views

Does a house battery need over-current protection on both Positive and Negative cables?

My understanding is that a disconnect is required outside the house by the electrical grid meter that disconnects both Positive and Negative cables. …
Mike Gray's user avatar
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Does a house battery need over-current protection on both Positive and Negative cables?

Here is my best interpretation of the code: 240.15: Current carrying conductors that are ungrounded (example, hot wires in a US AC circuit panel) must have overcurrent protection. 240.22: Current ca …
Mike Gray's user avatar
  • 125
2 votes
1 answer
1k views

Does an off-grid solar inverter need to be UL listed?

The idea is to reduce my electrical bill, and have some power to use for those circuits during power outages. I live in Washington, US, and we are using the NEC 2020 code. … Follow-up question: So what kind of stamp of approval (if any) do I need to pass an electrical inspection if the inverter is permanently installed in my house and not an RV? …
Mike Gray's user avatar
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