AS 3856.2:2021 – Hoists and ramps for people with disabilities-Vehicle fitted Part 2: Fitting requirements.
11.6 Circuits
All circuits shall be protected with a suitably rated current overload device (i.e. fuse).
12 Warning system
For T,pe A. B, C and 0 appliances which are fitted to the side of a vehicle, a means shall be provided to warn the driver of the vehicle that the appliance is not stored.
NOTF This may take any form, including a visual or audio warning or a safety interlock to prevent movement of the vehicle.
13 Securement of ramps
13.1 Attachment to the vehicle
Ramps shall he attached to the vehicle in such a manner that they cannot he displaced during use in accordance with Appendix C.
13.2 Storage in the vehicle
Detachable ramp(s) when not in use shall be securely stored in the vehicle. Ramps shall be stored in a manner that will prevent a loading of 20 tImes the weight of the ramp, applied In any horizontal direction, from tearing it free.
NOTh The litter should seek the advice o the State or Territory vehicle registration authority with regard to the fitting of anchorages.
14 Vehicle access
The installation of the appliances should not cause the occupant to alter their usual seated posture to enter and exit the vehicle.
15 Steps or stairs
The treads and risers of any steps or stairs forming part of the appliance, which are for the use of ambulatory passengers, shall conform to the requirements for stairs in AS 1428.2.
16 Performance requirements
16.1 General
16.1.1 Operation of the appliance when the vehicle is on level ground, on a gradient and at an angle
The following shall apply:
(a) The appliance shall operate when the vehicle is on level ground and on road gradients (pitch) up to 4 degrees.
(b) The appliance shall operate when the vehicle is on level ground and when the vehicle is at an angle oft 5 degrees (vehicle roll) due to crowns, depressions, or kerh geographics.
This Appendix sets out a method for testing the platform of an appliance for the interface between the platform and the vehicle In which the appliance is fitted.
B.2 Principle
The platform of the appliance is deployed and placed In its fully raised posnion. The attitude of the platform is measured. A load is placed on the platform and left in position for a specified time, The platform is measured for deflection. The load is removed and the interface between the platform and the vehicle is measured.
B.3 Apparatus
The following apparatus Is required:
(a) A means by which the attitude of the platform can be measured, In degrees.
(b) A means by which a test force of 1.25 s SWI can be applied through the centroid of the platform.
NOTE An example of a standard loading pad is given in AS 3856.1.
B.4 Procedure
The procedure shall be as follows:
(a) Deploy the platform and place the platform in its fully raised position.
(b) Measure the attitude of the platform.
(c) Place the test force of 1.25 x SWL at the centroid of the platform.
(d) Leave the force in place for a period of 2 mm.
(e) Measure and note the angle, in degrees, of any deflection of the platform.
(f) Remove the test load.
(g) Measure and note the total vertical difference between the horizontal surface of the platform and the horizontal surface of the floor of the vehicle at the point where the platform meets the vehicle.
(h) Measure and note any gap between the platform and the vehIcle.
(i) Leave the test load in place and raise and lower the platform through its full operable range.
(j) Inspect and identify any pinch points, damage or compression of cables and/or hoses throughoul its full operable range.