BS EN 131-7:2013 pdf download

BS EN 131-7:2013 pdf download.Ladders Part 7: Mobile ladders with platform.
6.5 Protection bending test
6.5.1 Tests on guardrails (principal guardralls and top handrail of the gate)
To eliminate the free movements apply a preload of 20 N honzontally for a period of 1 mm, The position of the handrail under the peload is the starting point for the measurement of bending
— Apply the test load of 300 N horizontally for one minute distributed over a length of 100 mm and a depth equal to the princal guardrail in the most unfavourable position and direction, and then measure the deflection,
Requrement: maximum deflection under load 35 mm.
— Apply the test load ol 1 250N vertically for one minute distributed over a length of 100 mm and a w,dth equal to the principal guardrad in the most unfavourabe position, and then puN the load off,
Requiement: no disassembly, crackin9 or rupture shall occur.
6.5.2 Test on middle rail (Intermediate guardrail and the middle rail of the gate)
Apply the test load of 1 250 N vertically for 1 mm, than put the load off.
Requiement: no disassembly, cracking or rupture shall occur.
6.6 Side handrail testing
This test shall be accordmg to EN 131-2.
6.7 StabilIty test
6.7.1 Platform 0,5 m2
Place the mobile platform ladder in position of use, complete with any balasl aiithui WI. i.y üii, device actfrvated on an even and solid ground. The castors shall be placed in the most unfavourable position.
Apply a test load of 750 N distributed centred on a rigid steel plate of max. 200 mm 200 mm located on the centre of the platform.
Apply a test load of 750 N distributed centred on a rigid steel plate of max.200 mm × 200 mm located in themost unfavourable position on the platform.
Apply a suitable system to prevent slippage of the ladder towards the direction of the horizontal force.Thissystem shall not change the resistance to overturning of the mobile platform ladder and shall have a heightabove the ground not greater than 10 mm.
Apply gradually to the level of the platform a horizontal pulling force F = 300 N to the edge of the platform inthe most unfavourable position and direction (see Figures 17 and 18).
For platform heights greater than 2,5 m, the pulling force is increased to F= 450 N when the product isintended for outdoor use or where it might be affected by wind.
The test is passed if the mobile platform ladder does not overturn.
Apply a test load of 750 N distributed centred over a rigid steel plate of max.200 mm × 200 mm in the middleof the platform.
Apply a suitable system to prevent loosing contact of all feet/wheels to the ground without affecting the originalstiffness of the mobile platform ladder.
Apply gradually to the level of the platform a horizontal pulling load of 300 N at the edge of the platform in themost unfavourable position and direction (see Figure 19 and Figure 20).
The maximum deflection d measured under load at platform height is: d < 10 mm + 0,01 * h.