(9)
Cautions for electric wiring
The following are procedures on repair and addition of wiring for fire prevention
(a) General guidelines on addition and repair of wiring:
See JIS C3406 (for low voltage wiring for automobile), JASO 0608 (heat resistance low voltage wiring for
automobile), JIS C2336 (insulation tape for wiring) vinyl tape or equivalent.
1
General procedures for wiring installation:
1) Clamp the wires on the frame, chassis and other parts of the van to prevent hanging of wires. Use clamps to avoid
contact with chassis. Sharp edges, vibrating and rotating parts or use grommet for holes with sharp edges to
prevent wire damage and short circuit.
For details refer to the figure on the right.
2) In case of inevitable contact with sharp edges, fix the wire with clamp to be stable and cover with protector to
prevent wire damage caused by vibration.
Refer to the left figure below.
If the preceding method is not applicable, cover the wire with sleeve or tube.
Refer to the right figure below.
3) Band the wires along with the existing harness using vinyl tape. Never attach along with brake system and fuel
pipe (metal, vinyl chloride, vinyl hose, etc.) and provide a minimum distance as shown in the table below.
4) For wires within the engine compartment, clamp the harness along with the existing wiring and must be far from
heat source. Use heat resistance vinyl tape or metal clamp (rubber or vinyl coated). Do not use ordinary tape which
can loose its function due to high temperature.
5) Clamp the wires along with the existing wiring and provide an allowance for sagging for wires that are attached to
vibrating parts to absorbed its relative movements.
6) Female type giboshi connector must be for live line to avoid short circuit when disconnecting.
7) Never cut the battery cable if addition or shortening of length is required.
Rather replace with the required length. Retain wire clamping method.
Position and wire sagging condition especially between starter and the parts attached to the frame.
8) When connecting an extension wire, use the dame nominal size and color.
Use solder or connector to connect the wires securely. Never connect the wires by splicing. Do not use MCI as a
medium of reactance for soldering method.
Insulate the connection along the chassis properly to prevent water penetration.
9) For long wires, loop the wires and band together along with the existing wiring using vinyl tape without cutting.
2
Clamp
1) The clamp must be insulated with coating or rubber.
For different types of clamp see the figure below.
2) For distance between clamps, refer to the table below.
– 85 –
Path
Distance
Parallel
10mm or above
Crossing
20mm or above
Harness DIA.
Clamp distance
ø5 or less
300mm or less
ø5 ~ ø10
400mm
ø5 ~ ø10
500mm
