NSC expo
Subscribe or Register
View Cart  

Earn recertification points from the Board of Certified Safety Professionals by taking a quiz about this issue.

What's Your Opinion?

Is OSHA's "shaming" (via press releases, etc.) of employers who violate safety rules an effective deterrent?

Take the poll and add your comment.

Vote Results



Does your CEO 'Get it?'

Tell us why on the submission form and your CEO could appear among the 2016 selections.

Safety Tips

Wire rope safety

January 1, 2012

  • / Print
  • Reprints
  • Text Size:
    A A

Broken wire ropes can lead to serious incidents in a mine, cautions the Mine Safety and Health Administration. Wire ropes often break due to shock loading – when a load is applied to a rope that has developed slack as the result of a stopped or slowed load. When the slack runs out, a shock load will occur, generating extremely high force on the rope.

To avoid slack rope and other situations that might shock load a wire rope, MSHA recommends:

  • If an obstruction stops a mantrip on the way down a slope, always bring the trip up the slope – never try to continue down.
  • Maintain and periodically test overspeed switches and slack rope safety mechanisms. Never defeat an overspeed switch or slack rope stop.
  • Hoists and elevators should all be equipped with overtravel protection, as unintended overtravel can shock load a rope.
  • Never remove blocking, release a brake or otherwise release a load attached to a wire rope without checking the entire length of the rope to make sure it is not slack or snagged on anything.

Post a comment to this article

Safety+Health welcomes comments that promote respectful dialogue. Please stay on topic. Comments that contain personal attacks, profanity or abusive language – or those aggressively promoting products or services – will be removed. We reserve the right to determine which comments violate our comment policy.