A low voltage bonding bridge, also known as an intersystem bonding bridge (IGBB), is a termination block that connects grounding conductors for low voltage service providers. Bonding reduces the risk of electric shock by connecting conductive components that aren't meant to carry current, creating a conductive path between structures, panels, equipment, and metal parts. Here are some examples of low voltage bonding bridges:
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Southwire Inter System Bonding BridgeMade of a copper-aluminum alloy, this bridge has a connector depth of 1.535 in, a height of 4.488 in, and a width of 1.85 in. It's cULus listed and comes with a 90-day manufacturer defect warranty.
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Orbit Industries Intersystem Bonding BridgeThis bridge can be attached to a wall to connect power and communication grounding systems. It's available in zinc or bronze and has a removable plastic cover for outdoor use.
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Madison Inline Intersystem Bonding BridgeThis bridge mounts directly to an enclosure and has six termination boards, which is double the amount required by the NEC. It also has an inspection window so that an inspector can verify that the inner system bonding conductors have been terminated correctly