Ensure service bonding by one of these methods [Sec. 250.92 (B)]: (1) Bond metal parts to the service neutral conductor. A main bonding jumper is required to bond the service disconnect enclosure to ...

It’s important to understand the difference between grounding and bonding so you correctly apply the provisions of Art. 250. We earth ground systems to the earth to reduce overvoltage (from ...

When renting generators, it's important to know OSHA requirements for jobsites. There are two specifications: dealing with grounding the generator and bonding the neutral to the frame.

Starting with the 2008 National Electric Code, the only acceptable way to wire a subpanel is with a four-wire feed. Two hots, one ground, and one neutral wire. The grounds and neutrals must be ...