March 2020

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Worksurface Grounding: Improving the Path-to-Ground of Worksurface Mats

Worksurface and floor mats are most commonly grounded with a dedicated wire that is connected to electrical ground. Traditionally, the connection between the mat and wire is made with a snap. Snap connections can become electrically intermittent or accidentally disconnected, causing the worksurface or floor mat (which can often become ungrounded due to carts rolling over them) to lose its connection to ground.

To improve this connection, a ground cord with threaded holes can help. Threaded connections are recommended because they are more secure than traditional snaps; they allow the ground cord to be optionally bolted to the mat. This keeps the cord from disconnecting, ensuring proper grounding. The path-to-ground integrity of a mat should be periodically verified with a surface resistance meter and/or a continuous monitor.

Watch video of the SCS’s Dome Style Ground Cord with threaded snap connection to see how it works.