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Electronics => Projects, Designs, and Technical Stuff => Topic started by: coppercone2 on December 03, 2018, 05:49:12 pm

Title: good cable wiring strain relief/mechanical implementation guidelines?
Post by: coppercone2 on December 03, 2018, 05:49:12 pm
Is there any good documents relating to a good method of securing a wiring harness or cable into a chassis? For different setups, lengths, gauges, wire insulation types, all that stuff.

I have read some military wiring requirements before but the documentation was very long dry and had no pictures or anything (interesting to note though the neat trick to cut a diagnol line into a grommet if you intend to use it in a key way to make the wire travel longer and less likely to remove itself from the grommet).

Like good manufacturing data with maybe some test results etc.

When I look at old equipment its secured like crazy with wires ties and stuff but I want to know the difference between good and bomb proof. I have an idea of what bad is, but I don't know how to properly design this without what is in my mind severe overkill.
Title: Re: good cable wiring strain relief/mechanical implementation guidelines?
Post by: bugrobotics on December 04, 2018, 07:17:32 am
I'm not aware of any such guidelines.  The effectiveness of a particular cable strain relief depends upon the application.  Environment variables (vibration, fluid ingress, etc.), mobility requirements, serviceability and more could make a particular solution overkill and expensive or inadequate. 

Were you looking for a solution to a particular situation or just curious?  I'd like to hear about your findings if you have success in your search. 
Title: Re: good cable wiring strain relief/mechanical implementation guidelines?
Post by: coppercone2 on December 05, 2018, 01:56:55 am
something like those milspec wiring guidelines but more modern I guess
Title: Re: good cable wiring strain relief/mechanical implementation guidelines?
Post by: tpowell1830 on December 05, 2018, 02:59:18 am
https://standards.nasa.gov/standard/nasa/nasa-std-87394

EDIT: Starting on page 27 there are pictures... ;)
Title: Re: good cable wiring strain relief/mechanical implementation guidelines?
Post by: coppercone2 on December 05, 2018, 04:02:45 am
forgot about nasa thanks. how are other space agencies with posting info?
spacex? russia? public docs ?