Main Bonding Jumper: Difference between revisions
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*Proper bonding - bond only at main panel, not subpanel. [https://www.whittinspections.com/home-inspections/subpanel-bonding-subpanel-wiring/]. This is because the breakers are activated by current that includes the neutral, and if current flows through ground, the neutral may not have the current to trip a breaker. Depends on internals of the breakers. You still want the equipment ground connected to ground wires at subpanels, though.. | *Proper bonding - bond only at main panel, not subpanel. [https://www.whittinspections.com/home-inspections/subpanel-bonding-subpanel-wiring/]. This is because the breakers are activated by current that includes the neutral, and if current flows through ground, the neutral may not have the current to trip a breaker. Depends on internals of the breakers. You still want the equipment ground connected to ground wires at subpanels, though.. | ||
*The MBJ - [https://engineerexperiences.com/bonding-in-electrical-equipment.html#:~:text=A%20main%20bonding%20jumper%20(MBJ,grounded%20conductor%20and%20the%20EGC.]. Must be at main panel. Not subpanels. | *The MBJ - [https://engineerexperiences.com/bonding-in-electrical-equipment.html#:~:text=A%20main%20bonding%20jumper%20(MBJ,grounded%20conductor%20and%20the%20EGC.]. Must be at main panel. Not subpanels. | ||
*Note that the Leviton PoN CSED is factory-bonded. [https://www.se.com/us/en/faqs/FA116061/] Thus, can't be used as a subpanel. | |||
Latest revision as of 02:59, 14 November 2022
- Proper bonding - bond only at main panel, not subpanel. [1]. This is because the breakers are activated by current that includes the neutral, and if current flows through ground, the neutral may not have the current to trip a breaker. Depends on internals of the breakers. You still want the equipment ground connected to ground wires at subpanels, though..
- The MBJ - [2]. Must be at main panel. Not subpanels.
- Note that the Leviton PoN CSED is factory-bonded. [3] Thus, can't be used as a subpanel.