Acts and Regulations

91-191 - General

Section 49.7
Disposition versions

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Horizontal life line systems that are not pre-engineered
49.7(1)When a horizontal life line system is used which is neither designed nor certified by an engineer and is not a pre-engineered system, an owner of a place of employment, an employer and a contractor shall each ensure it meets the following requirements:
(a) the wire rope must have a diameter of a minimum of 13 mm with a breaking strength specified by the manufacturer of at least 89 kN;
(b) connecting hardware such as shackles and turnbuckles must have an ultimate load capacity of at least 71 kN;
(c) end anchor points shall have a load capacity of at least 71 kN;
(d) the horizontal life line must be free of splices except at the termination;
(e) the span of the horizontal life line must be at least 6 m and not more than 18 m;
(f) the horizontal life line must have an unloaded sag no greater than 1 in 60;
(g) limit free falls to 1.2 m; and
(h) a minimum of 5.5 m of unobstructed clearance must be available below the horizontal life line.
49.7(2)When a horizontal life line system referred to in subsection (1) is used, no more than three employees may be secured to the horizontal life line and the horizontal life line must be positioned so it does not impede the safe movement of employees.
2010-159