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Think you know how this installation violates the NEC?
Visit EC&M's website to see the answer.
Hint: Lack of continuity.
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Caught by the inspector!
Check out our newest Moving Violations video.
In this episode, Joe addresses sloppy workmanship and identifies a clamp installed improperly.
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Q. When a metal water pipe is used as a grounding electrode, is the concrete encased electrode satisfactory as the supplemental electrode, or is a ground rod still required?
Visit EC&M's website to see the answer.
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What are the requirements you must follow when grounding information technology equipment, where signal reference structures are installed? - The signal reference structure(s) shall be bonded to an external ground ring with a maximum resistance-to-ground reading of 2 ohms.
- The signal reference structure(s) shall be bonded to any of the electrodes in the area of the information technology equipment (i.e., a structural metal member or metal water pipe system).
- The signal reference structure(s) shall be bonded to the equipment grounding conductor provided for the information technology equipment.
- There are no requirements for grounding or bonding in this situation.
Visit EC&M's website for the answer and explanation.
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Video - Keeping Electronics Cool
EXAIR's low cost Cabinet Cooler® Systems stop electronic control downtime due to heat, dirt and moisture. They produce 20 degree Fahrenheit air from ordinary compressed air. Thermostat control minimizes air usage. Cabinet Coolers are UL Listed, CE compliant and maintain the NEMA 4, 4X and 12 rating. Web site offers detailed information, application video, CADs.
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