About 30 results
Open links in new tab
  1. Msha ground continuity testing - Electrician Talk

    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 …

  2. Pendant Receptacle Boxes - Electrician Talk

    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 …

  3. Grounding motor frames. - Electrician Talk

    Apr 22, 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 …

  4. Ground rod resistance - Electrician Talk

    Sep 1, 2010 · 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 …

  5. Unmarked cab tire caple of running 65Amps?! | Electrician Talk

    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 …

  6. How to get a MSHA Certification!!! - Electrician Talk

    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 …

  7. OSHA labeling - Electrician Talk

    May 2, 2013 · 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 …

  8. Service Conductors to multiple services - Electrician Talk

    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 …

  9. 3-wire control vs. 2-wire - Electrician Talk

    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 …

  10. Transfering certification to the US - Electrician Talk

    Dec 27, 2018 · THEN get the licenses once you understand for instance differences between CEC Part 1 and NEC, or M421 and MSHA/NEC. A lot of this makes a lot more sense by doing …