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Occupational Health and Safety Act, 1993 (Act No. 85 of 1993)

Code of Practice

Driven Machinery Regulations, 2015 : Commercial Zip line and Aerial Adventure Parks

7. Design Factors

 

7.1 Breaking load to maximum working load ratios

 

The ratio of the breaking load to maximum working load of ropes shall be at least equal to 5:1.

 

7.2 Rope joints, terminations and fittings

 

7.2.1 Rope Splices

 

The length of a splice in a rope shall be at least 1 200 times the diameter of the rope and the clear distance between successive splices shall be at least 3 000 times the diameter of the rope.

 

7.2.2 Swaged Fittings

 

Swaged fittings are preferred for the finishing of rope ends, but when ropes are so fitted the strength of the rope for calculation purposes shall be reduced by 10 %.

 

7.2.3 Wire rope Clamps

 

7.2.3.1 Clamps shall:
(a) be made of the Crosby or Bulldog pattern and shall comply with the requirements of EN 15567-1
(b) be of the correct size for the rope on which they are used or
(c) be of the U-bolt shall be fitted on the portion of rope that does not take the load and Nuts on the U-bolt should be tightened by the use of a torque equal to the appropriate test torque given in table 1 of EN 15567-1.
(d) The clamps used shall be at least the appropriate number prescribed in table 1 of EN 15567-1.

[Regulation 7(7.2.3.1)(a) substituted by Notice No. 1033, GG45328 dated 15 October 2021: Correction Notice]

7.2.3.2 When ropes are fitted to clamps, the strength of the rope for calculation purposes shall be reduced by 20 %.