Statutes, codes, and regulations
Wyoming Administrative Code
Agency 053 - Workforce Services, Department ofSubagency 0004 - Mining InspectorChapter 4 - UNDERGROUND COAL MINES
Subpart F - Electrical Equipment-General
Section 75.521 - Lightning arresters; ungrounded and exposed power conductor and telephone wires

053-4 Wyo. Code R. § 75.521

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Current through April 27, 2019
Section 75.521 - Lightning arresters; ungrounded and exposed power conductor and telephone wires

Each ungrounded, exposed power conductor and each ungrounded, exposed telephone wire that leads underground shall be equipped with suitable lightning arresters of approved type within 100 feet of the point where the circuit enters the mine. Lightning arresters shall be connected to a low resistance grounding medium on the surface which shall be separated from neutral grounds by a distance of not less than 25 feet.

053-4 Wyo. Code R. § 75.521