[time-nuts] DC distribution

[Martin Flynn]

After a failure under load of a starter cable on a large generator, I 
finally broke down and bought a Burndy hydraulic crimper for the grounds 
and cables I normally use.

Did two test low-tech tests:

First test on a 1" section of 2/0 DLO cable, with a two bolt telco lug 
at each end.  It failed at ~2200 ft/lbs, the wire itself broke strand by 
strand.

Second test involved sawing the crimp across the barrel and looking for 
voids.  Using factory lugs and die, no voids were visible at 25X 
magnification



On 10/6/2019 2:46 PM, Mark Goldberg wrote:
> It is even more difficult. I bought some cables from a company because I
> did not have a crimper for 4/0. I was not impressed. My crimps were much
> better.
>
> I don't have a specific recommendation, but you should get a feel from them
> that they understand the standards. Places that do work for aviation
> generally have to do good work, as lives depend on it. Unfortunately, it is
> a high labor activity, so many are not in the US. A long time ago, I worked
> with some just south of the border in Mexico that did good work.
>
> Regards,
>
> Mark
> W7MLG
>