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Wire Harness
CDM Electronics assists our OEMs in the
design and fabrication of wire harness products. The information
on this web page comes from Darrell Fernald's excellent
article in the April/May 2006 issue of Connector Specifier.
There are several types of wire harnesses,
and their deployment depends upon the final application.
Open Bundle
Wires are attached to connectors and tied into bundles,
usually with wire ties or plastic wraps. An open bundle
wire harness is generally used in wiring chassis or racks.
Closed Bundle
Wires are bundled with a covering, such as braided tubing
or nylon
CDM also offers armored and metal braids. Closed bundle
wire harnesses are generally used in hooking multiple
chassis together, and usually not in harsh environments.
Waterproof Harness
Each harness leg is covered with neoprene, or other similar
tubing.
Waterproof wire harnesses are often found in military
equipment, or industrial facilities where products are
exposed to the elements.
When to specify a harness…
From Connector Specifier April/May 2006
If you are wondering whether or
not to specify a wire harness, ask yourself the following
questions:
- Is the quantity of expected
items over their lifetime large enough to justify the
cost of preparing the documentation necessary to specify
the harness? (1:1 drawings, parts list, notes, etc.)
- Are there enough discrete interconnections
(wires) in the harness to require harnessing?
- Will a harness aid in troubleshooting
the unit?
- Can a harness be assembled into
the unit without damaging either the harness or other
parts of the unit?
- Does your time to market allow
for the proper design of a harness for the first units?
- How much time savings will result
from the application of a harness versus point-to-point
wiring?
You can use a cost/benefits analysis
to determine the desirability of using a wiring harness
in any particular application.
For more information, see the complete
article at: Building
wiring harnesses to save costs in chassis and racks.
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