Ariz. Admin. Code § R11-1-1172 - Buckets to Hoist Men during Shaft Sinking
Buckets used to hoist men during vertical shaft sinking operations shall have:
1. Crossheads
equipped with safety devices and protective bonnets when the shaft depth
exceeds 50 feet.
2. Devices to
prevent accidental dumping.
3.
Sufficient depth to transport men safely in a standing position.
Notes
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