W. Va. Code R. § 36-48-17

Current through Register Vol. XLI, No. 50, December 13, 2024

Section 36-48-17 - Tramming

17.1. Tramming the continuous mining machine in and out of the mine, and from section to section, must be done in accordance as follows:

17.1.a. The power source must not be located in areas where permissible equipment is required;

17.1.b. The continuous mining machine must not be used for mining or cutting purposes, except when powered by the approved high voltage power center;

17.1.c. The energized high-voltage cable must be mechanically secured on-board the continuous mining machine, if applicable;

17.1.d. Prior to tramming the continuous mining machine:

17.1.d.1. A certified electrician must activate the ground-fault and ground-wire monitor test circuits of the power sources to ensure that the corresponding circuit-interrupting device opens the circuit;

17.1.d.2. Corrective actions and recordkeeping resulting from these tests must be made;

17.1.d.3. Where applicable, a certified electrician designated by the mine operator must activate the test circuit for the grounded-phase detection circuit on the continuous mining machine to ensure that the detection circuit is functioning properly. Corrective actions resulting from this test failure must be made.

17.2. In addition, the following power sources may be used only to tram the continuous mining machine:

17.2.a. A medium-voltage power transformer or a step up low to medium power transformer can be used to supply 995 volts through a trailing cable to the continuous mining machine. The medium-voltage power transformer or low to medium transformer must not be used to back-feed the high-voltage circuits of the continuous mining machine; and meet all applicable requirements for medium-voltage and low voltage.

17.2.b. Alternate methods for tramming with power sources other than those listed are prohibited unless a permit is issued by the director or his authorized representative.

W. Va. Code R. § 36-48-17