[RE-wrenches] Connectors and Crimpers
Ray Walters
ray at solarray.com
Mon Nov 28 12:03:38 PST 2011
The wrong crimping tool with the wrong crimp is a big no no. I've seen
complete melt downs at high amps, because there was not enough contact
between the wire and the connector.
I'm one of the guys here that will help you save money when it makes
sense, but I've personally seen a lot of improper crimps, covered up in
insulating material, go bad. I'm not a fan of split bolts for the same
reason. Connectors like the Polaris splice blocks allow connections to
be double checked, allow voltage check without disconnecting anything
while trouble shooting, and make a reliable long term connection.
If you want to save money, just buy pre-made MC cables and cut them to
length. You end up with some left over 10 ft peices of wire, but it's
way cheaper than buying the tool.
Ray
On 11/28/2011 12:18 PM, Dave Bell wrote:
> Wondering if anyone has ever had any problem or AHJ questions regarding the use of a "non-UL listed" crimper in the creation of homerun cables?
> How about the use of cross brand connectors; like MC4 to MC4 "compatible" connectors (Amphenol H4, Lumburg LC4, Bizlink, etc)?
>
> UL listing dictates brand specific application, but it's difficult to maintain down to the tool level...
>
> Anyone had any experience or problems mixing it up?
>
>
> Dave Bell
> Engineering Services
> NABCEP Certified PV Installer(tm)
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