Detroit Diesel DDEC VI Application And Installation page 100

HARDWARE AND WIRING
Power and ground bus bars may be used. The bus bar must be connected to the battery posts with
0 AWG or larger wire depending upon the total vehicle current requirement. The connecting wires
must be as short as possible to minimize circuit resistance. Do not connect the ground wire to
the chassis ground. The bus bar and all related MCM and CPC ground circuity must not be any
part of the chassis ground circuit.
Provide maximum physical separation of the VIH power wiring from other vehicle electrical
systems. Other electrical system wires should ideally be at least three feet away from the VIH
power wiring and should not be parallel to the VIH power wiring. This will eliminate coupling
electromagnetic energy from other systems into the VIH power wiring.
Connection to reverse polarity will damage the system if not
properly fused.
A 40 amp fuse must be used and installed as close to the battery as possible.
The conductor must be annealed copper not aluminum and must comply with the industry
standard, SAE J1128 JAN 95 Low Tension Primary Cable. Contact the Society of Automotive
Engineers to obtain documents, refer to Appendix for their address.
Splices must be soldered and sealed with a waterproof insulator. Alpha FIT-300, Raychem
TAT-125 or any equivalent heat shrink - dual wall epoxy encapsulating adhesive polyolefin is
required.
Detroit Diesel Corporation recommends color coding. Alternatively, wires may be hot stamped
with the cavity number.
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NOTICE:
All information subject to change without notice. (Rev. 01/07)
7SA827 0701 Copyright © 2007 DETROIT DIESEL CORPORATION