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Testing Grounding Systems

30 CFR 56.12028 and 57.12028

 

30 CFR §56/57.12028 Testing grounding systems

Continuity and resistance of grounding systems shall be tested immediately after installation, repair, and modification; and annually thereafter.  A record of the resistance measured during the most recent tests shall be made available on a request by the Secretary or his duly authorized representative.

 

This standard requires that the continuity and resistance of electrical grounding systems be tested immediately after installation, repair, modification, and annually thereafter.  A record of the resistance measured for the most recent test shall be made available if requested by the Secretary of Labor or her duly Authorized Representative.

 

MSHA policy can be found here: 56/57.12028

 

Other relevant MSHA standards:

  56.12025 or 57.12025 - Grounding circuit enclosures      

  56.12026 or 57.12026 - Grounding transformer and switch gear enclosures

56.12027 or 57.12027 - Grounding mobile equipment

56.12047 or 57.12047 - Guy wires

 

Issues to Consider in Determining Compliance:

        Are electrical grounding systems being installed?

        Are electrical grounding systems being repaired?

        Are grounding systems being modified?

        Are the above grounding systems tested annually or after one of the noted events?

        Are the most recent resistance tests available to an Authorized Representative of the Secretary of Labor?