We are running into a problem when we measure the circuit ohms Then get the licenses once you understand for instance differences between cec part 1 and nec, or m421 and msha/nec We think it's because we.
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They stated it was illegal because anyone.
I used to do msha testing so am familiar
Vfd cables have a great ground internally though We, the installer, are adding all these motor frame jumpers I was told by fellow workers it’s normal here so im thinking it’s just habit Obviously most motors dont come with a way to do this legit so some of it’s wonky.
We have a lime mine here in town and we have to certify their grounding (electrodes) and bonding every year in accordance with msha standards The tester we use is made by ideal and it cost about $1500.00. Msha is mine safety and health administration p means that it meets the additional requirements of the state of pennsylvania bureau of mines 159 means that it was manufactured by the excel cable company, which is now essex 18 means that the cable was certified under 30 cfr, part 18 as flame resistant cable there are more markings on your cable Look up your msha district office and ask an inspector
Mine inspectors are tough to mine violators,but good to average joe
They don't want to see any shortcuts that can cause an injury or death For insance msha says that any abandoned wiring must be removed I can't tell you how many industrial plants or even residential areas where you see old dangling wiring hanging out somewhere. I had one of my customers get fined for improper panel labeling
All circuits are labeled correctly, they fined them on the spares not being marked No wires hooked up to the breakers at all I guess i have always left these blank so it can be added to when the customer adds something That's an msha (mining version of osha) requirement at least for underground and coal mining
