High-voltage, explosion-proof load centers.
Conroy-GJ; Berry-R; Gillenwater-R
Underground coal mine power systems. Proceedings: Bureau of Mines Technology Transfer Seminar, Pittsburgh, Pennsylvania, September 16, 1982. Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 8893, 1982 Sep; :29-54
To attain future underground mine production considered to be necessary by the Department of Energy, voltages higher than the presently permitted 4,160 V must be carried to the close vicinity of the mining machines; otherwise, trailing cable size and weight creates handling problems. A project has been running for the past year to delineate approval tests and acceptance criteria for explosion-proof load centers that will permit operation inby the last open crosscut. The investigation includes fabrication and testing of a load center. Tentative specifications are presented in this report.
Underground-mining; Electrical-equipment; Electrical-safety; Electrical-explosions; Explosion-prevention
IH; Conference/Symposia Proceedings
Underground coal mine power systems. Proceedings: Bureau of Mines Technology Transfer Seminar, Pittsburgh, Pennsylvania, September 16, 1982