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Program Policy Manual - VOLUME V - Mine Safety and Health ...

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MSHA PROGRAM POLICY MANUAL <strong>VOLUME</strong> V<br />

drills, mobile cranes, haulage trucks, <strong>and</strong> endloaders.<br />

However, all other relevant provisions in Part 77 will<br />

continue to apply to these machines. Equipment <strong>and</strong> wiring<br />

installed after June 30, 1971, will be inspected <strong>and</strong><br />

enforcement action taken in the same manner as on equipment<br />

installed prior to that date. For example, Sections 77.404<br />

<strong>and</strong> 77.502 requiring examination <strong>and</strong> proper maintenance will<br />

be enforced, along with appropriate conductor ampacities<br />

under Section 77.503, short-circuit <strong>and</strong> overload protection<br />

under Section 77.506 <strong>and</strong> all relevant grounding provisions.<br />

February 2003 (Release V-33) 181

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