[DeTomaso] How bad are electrical splices?
Dave Londry
davel at emspace.com
Sun Nov 9 21:34:52 EST 2014
And the additional point is that crimped connections are much, much less
susceptible to fatigue failure.
The issue there is -- you need a decent crimping tool.
The 2 buck POS in the crappy kits is only good to hang the wire into the
connector until you're not looking.
I see that HF has a "real" crimper for 15 bucks. I've never tried that
one so I can't say too much.
60 bucks gets you a decent set with multiple jaw types.
http://www.amazon.com/Astro-Pneumatic-9477-Interchangeable-Tool/dp/B0045CUMLQ/ref=sr_1_8?ie=UTF8&qid=1415586393&sr=8-8&keywords=crimp+tool+set
dave
On 09/11/2014 4:31 PM, jderyke at aol.com wrote:
>
> This is standard stuff for tough mobile applications, Stephen.
> Strain-relieving is about supporting a soldered connection to prevent
> fatigue failure at the point where the solder ends. A helicopter is a
> great example of an environment in which a solder joint, with wire
> that's free to vibrate, can come apart in hours.
> dave
>
> Correct- support flexing wires about every 4". One of the most
> critical is the wire(s) for a crank-fired ignition. One Pantera
> owner's high-dollar super-ignition system broke two pick-ups- with
> factory strain-reliefs- in a 500 mile run to 'Vegas and back. In the
> installation, there was a 12" long unsupported section next to the
> harmonic balancer. He had extra sensors drop-shipped to him on the way
> from the embarrassed mfgr and used all 3 on the trip. NOT a happy
> camper that weekend! FWIW- J DeRyke
>
-------------- next part --------------
And the additional point is that crimped connections are much, much
less susceptible to fatigue failure.
The issue there is -- you need a decent crimping tool.
The 2 buck POS in the crappy kits is only good to hang the wire into
the connector until you're not looking.
I see that HF has a "real" crimper for 15 bucks. I've never tried that
one so I can't say too much.
60 bucks gets you a decent set with multiple jaw types.
[1]http://www.amazon.com/Astro-Pneumatic-9477-Interchangeable-Tool/dp/B
0045CUMLQ/ref=sr_1_8?ie=UTF8&qid=1415586393&sr=8-8&keywords=crimp+tool+
set
dave
On 09/11/2014 4:31 PM, [2]jderyke at aol.com wrote:
This is standard stuff for tough mobile applications, Stephen.
Strain-relieving is about supporting a soldered connection to prevent
fatigue failure at the point where the solder ends. A helicopter is a
great example of an environment in which a solder joint, with wire
that's free to vibrate, can come apart in hours.
dave
Correct- support flexing wires about every 4". One of the most critical
is the wire(s) for a crank-fired ignition. One Pantera owner's
high-dollar super-ignition system broke two pick-ups- with factory
strain-reliefs- in a 500 mile run to 'Vegas and back. In the
installation, there was a 12" long unsupported section next to the
harmonic balancer. He had extra sensors drop-shipped to him on the way
from the embarrassed mfgr and used all 3 on the trip. NOT a happy
camper that weekend! FWIW- J DeRyke
References
1. http://www.amazon.com/Astro-Pneumatic-9477-Interchangeable-Tool/dp/B0045CUMLQ/ref=sr_1_8?ie=UTF8&qid=1415586393&sr=8-8&keywords=crimp+tool+set
2. mailto:jderyke at aol.com
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