You're Grounded! Get Compliant with Rebar Grounding Clamps

In the U.S., rebar grounding clamps are necessary in many applications due to grounding specifications outlined in the 2005 National Electrical Code (NEC). Specifically, NEC 2005 states that:

"An electrode encased by at least 50 mm (2") of concrete, located within and near the bottom of a concrete foundation or footing that is in direct contact with the earth, consisting of at least 6.0 m (20 ft) of one or more bare or zinc galvanized or other electrically conductive coated steel reinforcing bars or rods of not less than 13 mm (1/2") in diameter, OR consisting of at least 6.0 m (20 ft) of bare copper conductor not smaller than 4 awg. Reinforcing bars shall be permitted to be bonded together by usual steel wires or other effective means."

Rebar Grounding Clamps

Some states have even taken this requirement one step further by requiring two connection points to the rebar.

Because rebar usually has deformations, a high-resistance connection is often hard to establish. A mechanical connector will contact the rebar in only a couple of spots, unless the deformations are grinded off (or unless an exothermically welded connection is applied).

Rebar grounding clamps offer a cost-effective way to connect conductors to ground rods or rebar. Staying grounded has never been so easy, especially with the reliable supply of clamps readily available from White Cap service professionals.

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