AS 4685.4:2021 – Playground equipment and surfacing Part 4: Additional safety requirements and test methods for cableways(EN 1176-4:2017, MOD).
4 Safety requirements
4.1 General
Cableways shall conform to EN 1176-1 unless otherwise specified in this part of EN 1176.
4.2 Framework and flxlng points for the cable
Framework and fixing points for the cable shall be designed to withstand the computed loads (static
and dynamic) transmitted by the cable, in accordance with EN 1176-I.
There shall be an adjusting device so that the correct sag can be maintained for the life of the cable.
4.3 Calculation of forces acting on the cable of a cableway
The cable shall be designed so that it can withstand the forces acting upon it according to EN 1176-1:2017, Annex A.
4.4 Stops
When tested in accordance with Annex A, the stop at the terminus shall progressively slow down the traveller until it stops and the suspension element shall not swing through an angle ol more than 450, as shown In Figure 4.
NOTE This test includes an allowance for starting speed.
4.5 Traveller
The traveller shall be constructed so that it cannot slip out of place and the sides are closed to prevent any access by the user to moving parts from the side.
Openings for the cable may allow the 8mm finger rod (see EN 1176-1:2017, Figure D.10) to pass through but the rod shall not get squeezed between any moving parts when it is inserted by the length of 70 mm.
There shall be only one traveller on the same cable.
The traveller and suspension element shall be designed such that It does not cause damage to the cable during use.
4.6 Suspension assembly
For seating type cableways rigid suspension elements shall not be used.
If a flexible suspension element Is used it shall be designed to prevent risk of strangulation.
If a pulling device for the traveller is provided it shall be designed to prevent risk of strangulation,
4.7 Cableways arranged in parallel
For cableways arranged in parallel, the distance between the cables shall be at least 2 000 mm. 4.8 Grips
For hanging type cableways, the grip shall he constructed to ensure that the user can easily release their hold at all times. If the grip Is an enclosed loop, It shall not be made from flexible material that could tighten around the user’s arm or hand thus preventing the user from releasing their grip quickly. Enclosed loops shall conform to the entrapment requirements in EN 1176-1:2017. 4.2.7.
It shall not be possible to climb on the grip.
If the grip is rigid and does not form a loop, the ends of the grip shall conform to EN 1176-6:2017. Annex E.
NOTE This is to reduce the risk of eye injury from the ends of proiecting hand supports.
Suspension type cableways from which users will hang by the hands shall conform to EN 1176-1:2017.
4.9 Seats
Seats shall be designed so that the user can leave the cableway quickly and at all times. Seats which Form loops or circular rings shall not be used.
When tested in accordance with EN 1176-2:2017, Annex C, peak values of acceleration shall be not greater than 50 g and the average surface compression shall not exceed 90 N/cm2.
4.10 Speed
When tested In accordance with Annex B, the maximum speed of the traveller shall not exceed 7 rn/s. 4.11 Free height of tall
The free height of fall, for all cableway types, shall be measured unloaded, and with the seat or hand grip hanging vertically below the cable. In the sitting position the free height of fall, H,, shall not exceed 2 000 mm.
In the hanging position the free height oF fall shall be measured from the grip position minus 1 500 mm to the surface below, as the user should not be able to access the cable (see Figure 2). In the hanging position, the free height of fall. H,. shall not exceed I 500 mm (see Figure 2).
The sagging of the cable and thus the distance ground/cable, ground/grip and ground/seat are dependent on teniperatlire. The minimum and maximum dimensions specified apply to a reference temperature of 15 °C.