Cables must be secured between their connectors and any point of flexing so that flexing forces are
not transferred to the connectors.
Warning
:
Route and position cables and remote modules so that they are free from physical strain, abuse or damage, such
as snagging, crushing, impacts from external objects, pinching or abrasion.
Warning
:
Damage to cables increases wiring impedance. A damaged cable can potentially produce localised heat, sparks or
arcing and become a source of ignition to surrounding flammable material. The installation must ensure that all
power cables, including the bus cable, are protected against damage and potential contact with flammable
materials.
Adequate strain relief must be provided for all cables, and the mechanical limits of the cables and
looms must not be exceeded.
Ensure that connectors and connector sockets are shielded from water splashes and water ingress.
Cables with female connectors should face horizontally or downwards. Ensure all connectors are fully
mated.
Warning
:
Connector pins on cables connected to the power module can still be live even when the system is off. Cables with
live pins should be connected, restrained or covered so that they are not exposed to human contact or materials
that could cause electrical shorts.
Make sure that the cables do not extend beyond the wheelchair to prevent them from being caught
or damaged by external objects. Take particular care on wheelchairs with movable structures such as
a seat raise.
Warning
:
Avoid routing the cable where it will come into continuous contact with the end user.
When installing the bus cable, avoid undue straining of the cable and connection points. Flexing of
the cable should be minimised wherever possible, to extend service life and minimise the risk of
accidental damage.
Warning
:
Use of a cable chain to support the bus cable, where the cable is subject to regular cyclic bending, is
recommended. The maximum stretch of the chain should be less than the length of the bus cable. The force
applied to flex the cable should never exceed 10 N.
Note
:
Appropriate life testing should be carried out to determine / confirm the expected service life and inspection and
maintenance schedule.
See also
:
GBK65701 DX2 Compact Remote Modules
Installation Manual Issue 1
Installation - Page 19