mining code

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Halonight84 said:
1.What electrical code do I follow when working on a surface mine?
2.What electrical code do I follow when working on a underground mine ?
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WhenI


When I sold breakers I sold UL 489 breakers for surface mines which I would understand would be NEC.
Underground mining were MSHA devices which were for underground coal mines.
But, I would like to understand that other underground applications would be the NEC.
 
90.2 SCOPE

(B) NOT COVERED

(2) Installations underground in mines and self-propelled
mobile surface mining machinery and its attendant electrical
trailing cable.

I would look to the big governing bodies in the industry and OSHA for some guidance.
I would guess that their regulations are full of references to NFPA 70 though.
 
luckylerado said:
90.2 SCOPE

(B) NOT COVERED

(2) Installations underground in mines and self-propelled
mobile surface mining machinery and its attendant electrical
trailing cable.

I would look to the big governing bodies in the industry and OSHA for some guidance.
I would guess that their regulations are full of references to NFPA 70 though.
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Trailing cable, if my memory serves me correctly these cables are plugged in and in addition to the power circuit conductor there is a control conductor. Should the cable be disconnected the control conductor with cause the breaker to open. It may be by means of an under voltage trip.
 
Halonight84 said:
1.What electrical code do I follow when working on a surface mine?
2.What electrical code do I follow when working on a underground mine ?
Click to expand...

Title 30 of the Code of Federal Regulations (30 CFR) - but if you are doing work in any mining environment, it would be very beneficial for you to at least be familiar with it in its entirety, not just the electrical.
 
YourElectricianOC said:
Title 30 of the Code of Federal Regulations (30 CFR) - but if you are doing work in any mining environment, it would be very beneficial for you to at least be familiar with it in its entirety, not just the electrical.
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Yes, there are lots of things that MSHA can cite you for. We got cited for not using wheel chocks when we parked a pick up truck.
 
don_resqcapt19 said:
Yes, there are lots of things that MSHA can cite you for. We got cited for not using wheel chocks when we parked a pick up truck.
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Yes. I don't necessarily miss working in mining. Although I do miss working on the equipment. I&C and 4 quadrant control via VFDs the size of your house and an equally impressive bank of synch motors is a lot more fun to work on than any residential or commercial on its best day :) - Although I have much better hours now ;)
 
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