Plate and beam clamps shall not be used for hoisting unless they cannot be practically replaced with another acceptable rigging component. If beam or plate clamps are used they must:
- Be locking or designed so that slackening of the hoist cable does not release the clamp
- Have manufacturers or engineer specification on capacity, sizes and methods of inspection
- Receive approval for use on the project.
Plate or beam clamps that rely solely upon a screw type mechanism for securing material are not permitted for use on the Pipeworx project. A locking mechanism is also required on screw type clamps.
Come alongs and chainfalls used shall:
- Have the capacity identified.
- Have all components including the hook; rated in consideration of the required safety factors, of a sufficient capacity for the hoist.
- Do not use the chain to wrap around the load for hoisting or hooked back to itself.
- Have load limiters, if so equipped, set at or below the safe working load.
- Loads shall not be left unsecured or supported solely from a come-a-long, chainfall or tirfor, secondary lashing must be used as a backup at all times if the work area is going to be
left unattended. Pre-planning shall take into account rest breaks and shift change over.
- Come-a-longs, chainfalls or tirfors shall not be used as a “stand-a-lone” rigging or
attachment when hoisting with cranes. A secondary safety line (sling) must be used as a
Share This Article
Subscribe to our RSS Feed. What is RSS?