- (a) A-frames, towers, and masts shall be of design and construction that provides adequate structural strength, and of sufficient vertical clearance or height for positive control of material or loads.
- (b) The apex and base of A-frames and similar devices shall be secured to prevent displacement.
- (c) The A-frame shall be guyed with two back guys and one front guy or snap line. In lieu of a snap line, a back stiff leg may be used.
- (d) Where mobile A-frames, towers, masts, or similar devices are used, all rigging on such devices shall be inspected; worn or defective parts shall be replaced or repaired before the devices are raised or used on each respective setting.
- (e) Rigging shall conform to the requirements of Article 7.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
History
1. Editorial correction of subsection (e) filed 3-11-81 (Register 81, No. 11).