How to Properly Protect Your Wiring – Holley Tech

How to Properly Protect Your Wiring – Holley Tech


Today we’re going to discuss the proper protection
for the wiring harness starting with the primary power connections from the battery. The main power supply cable from the battery
to the rest of the system should be protected with either a correctly sized max fuse or
fusible link. Individual circuits that are in the wiring
should also be protected with the correct size wire as well as the properly sized fuse. Things such as transmission fans and trans-breaks
should definitely be protected with the fuse to protect these circuits if a problem occurs. As discussed in a chapter on proper wire selection,
every circuit must have a wire that’s properly sized for the components electrical load or
you’ll have problems with heat and voltage loss at a minimum, serious component damage
including fire are always a possibility if these rules are ignored. The engine and chassis must be properly grounded. Using a vehicle chassis as your primary ground
as we’ve previously discussed is not sufficient. You want to make sure that you use proper
grommets any time that your passing the wire through bulk heads as well as use a high quality
loom to protect the wires from any abrasions. You want to retain the harness and keep it
secure and away from moving parts or other high heat components. An example we’ve got are the new Mr. Gasket
3741 magnetic zip tie retainers which allow you to go to a steel surface and retain without
having to drill any holes or some of the cushion clamps, an example of these would be Earl’s
part number 171010ERL. You want to make sure that you use some type
of harness installation if the wires run near some high heat sources. A couple of examples we have here are the
Earl’s Flame Guard which has been available in this brick finish for several years as
well as the new black finish that’s available. Another material that we have here is the
Mr. Gasket Inferno Shield part number 6323, which is a fiber glass insulation with an
adhesive backing as well as a foil outface you can wrap around your wires in order to
protect those from other high heat sources. It’s important to make sure that you follow
proper wiring practice throughout your installation, make sure that your wires are retained away
from moving sources and high heat components and make sure they are guarded against abrasion. So for a quick review on wire protection,
you want to make sure that you use the proper gauge wire for the task at hand, you want
to make sure you use the proper fuses to protect the circuits, if your going through any metallic
bulk heads you want to make sure that you run the wire through a grommet, use protective
loom and the proper retention devices to keep it out of harms way. If your wiring is going near any high heat
sources, make sure you use some type of insulation as well in order to protect that wiring from
heat so you don’t have any melt downs. For more recommendations and tips on properly
wiring your vehicle, check out our other great Holley tech videos.

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