Grounding Cables

Electrical Safety Grounding Cable and Grounds Accessories in Stock!

JM Test offers a full service solution for your grounding cable needs. Grounds are built, repaired, and tested to ASTM Standards F855-09 and F2249-03(2009). All products are tested prior to shipping. Most grounding cable options can be tested, repaired and cleaned by our technicians.

Need A Custom Grounding Cable in a Hurry? We Make it Easy

• Quick turnarounds are available for all stock items
• Build to your exact specifications
• From the cable to the clamp we have hundreds of products in stock
• All grounds are tested by our NAIL Accredited laboratory prior to shipment
• JM Test offers pick-up and delivery service across Southern and Mid-West US.
• Onsite Testing available, we come to you! Call us to inquire today!
• Testing in accordance to all ANSI/ASTM Standards

Single Assemblies • Grounding Cable Clusters • URD Grounds

The clamps in any assembly can be identical or quite different depending on each grounding application. JM Test Systems stocks a wide variety of clamps for ALL applications. Clamps are offered in either bronze or aluminum alloys and are manufactured to meet the current specifications of ASTM F 855.

To attach a clamp to the grounding cable requires the use of a ferrule. Ferrules are compressed on the strands of the cable to provide a low resistance permanent connection. The size of the ferrule is determined by the size of the cable. Ferrules are manufactured to the specifications of ASTM F 855.

Grounding Cable Checklist

1. Specify the clamps. Be sure that the clamp will meet or exceed the max amperage rating of the ground cable that it will be used with.

2. Specify the cable. Once the short circuit capacity of the system has been determined, choose the appropriate size cable. Specify the cable length, and the color of the jacket desired.

3. Specify the ferrules. The size of the ferrules must match the size of the cable that it will be used with. Specify Copper or aluminum and shrouded or non-shrouded.

4. Specify the options. List any optional equipment that is desired. This can include hanger studs, contact studs, heat shrink tubing, markings, clear strain relief, etc.