Feb 8, 2014 · Anybody have experience with doing ground testing for msha? We are running into a problem when we measure the circuit ohms. We start out with a 500' spool of wire and have .7 ohms …

Apr 21, 2024 · 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 …

Aug 3, 2023 · Interesting MSHA has no authority over the buildings here is the kicker not in the mine. That was OSHA. Ended up in HR again over that one. Fortunately the mine manager agreed with me …

Sep 1, 2010 · How do you measure the resistance of a ground rod and what instrument do you use?

Nov 10, 2010 · Okay. "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 …

Feb 19, 2010 · 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 …

May 3, 2011 · MSHA started pushing the use of either dielectric mats or metal platforms grounded and bonded. In our area most mining companies have built metal platforms that are grounded and …

Sep 13, 2024 · I need a little help with defining a dead front for an electrical panel. The code states to protect from all exposed live parts. Does this include wires and the sides of the breakers? With …

Nov 27, 2024 · 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 …

Feb 1, 2025 · That's an MSHA (mining version of OSHA) requirement at least for underground and coal mining. Often surface metal-nonmetal works the exact same way because they buy equipment from …