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90.2(B)(2) If not here then where?

Question asked by fanchier on Jan 31, 2019
Latest reply on Jan 31, 2019 by fanchier

90.2 Scope.

(B) Not Covered. This Code does not cover the following:

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


I work at an open pit copper mine, & we have self propelled 7200 VAC shovels.

My questions are:

1) Why doesn't the NEC cover the electrical in underground mines, or the self propelled mining equipment?

2) Does anyone know where I can find a Code/Regulation covering the electrical on mobile mining equipment? MSHA's Articles on electrical aren't very in depth....