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  1. Services and Service Equipment
    Good day. This is an issue I am facing that has several parts: 1. I am the maintenance electrician for a large senior living facility that is only about five years old, in fact I was the foreman who closed out the nearly two-year long job in 2018. 2. It was built with a 4000A, 480V service...
  2. Residential Electrical Forum
    Hi. Looking for advice on for a whole house surge protector (in a low to moderate lightning area) - what product to install and where based on my specific breaker panels (main & sub, and has photovoltaics - not worried about the solar panels getting hit - more about surges through the grid)...
  3. General Electrical Discussion
    Hi, I have three questions regarding the surge protection of a circuit: 1) My understanding is that the fuse voltage rating needs to be more or equal the operating voltage of the AC circuit but I've seen 250VAC fuses used for universal input line voltage values. How is that possible? Is it an...
1-3 of 3 Results