210(1)An employer shall ensure that no rope is used as a shaft rope if its breaking strength drops below
(a)
in any part of a hoisting rope, ninety per cent,
(b)
in any part of multi-layer, multi-strand balance rope, ninety per cent,
(c)
in any part of a single layer stranded balance rope, eighty-five per cent, or
(d)
in any part of a guide or rubbing rope, seventy-five per cent
of the breaking strength of the rope as set out in the certificate of test referred to in subsection 204(1).
210(2)Notwithstanding subsection (1), an employer shall ensure that no rope is used as a shaft rope where
(a)
the extension of a test piece has decreased to less than sixty per cent of its original extension when tested to destruction and marked corrosion or considerable loss in wire torsion has occurred,
(b)
the number of broken wires, excluding filler wires, in any section equal to one lay length exceeds five per cent of the total, or
(c)
the rate of stretch in a friction hoisting rope shows a rapid increase over its normal stretch recorded during its service.