Re: Electrical systems

Posted by HH56 On 2023/2/10 20:52:35
Quote:

Kenken wrote:
Hey what's with all the electrical tape wrapped around the wires you do that just for like insulation or to keep them okay

The purpose of any kind of loom wrapping is to keep all the wires more or less in a neat bundle tightly controlled so there is not a jumble of loose wires all over the place. This helps in installation of the loom as well as allow for a few well placed clamps to guide and keep it neat on the sheetmetal.

If the wrapping is actual sticky on one side electrical tape then an owner has most likely applied it to keep wires together or maybe do a repair. Up until the late 40s early 50s the harness was made of mostly fabric covered rubber wire and covered over all the wires was a braided cotton thread jacket.

That braided fabric cover and wire was superseded by vinyl insulated wire and what is called harness wrap which looks like black electrical tape but has no adhesive. It is just wrapped around the wires and when an end point is reached the end of the wrap is tucked under a couple of the wrap layers and everything pulled tight to keep in place. There may have been a period where fabric covered wire was still in use but covered with the harness wrap.

Heat and grease can make the harness wrap hard and brittle so it sometimes breaks and starts to unwrap. Electrical tape might have been used to keep a spot like that from unraveling more.

You can buy harness wrap from Amazon in rolls about an inch wide or maybe a bit wider.

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