[time-nuts] DC distribution

[Mark Goldberg]

On Sat, Oct 5, 2019 at 6:03 PM Hal Murray <hmurray at megapathdsl.net> wrote:

>
> Do the people who maintain the rules occasionally look around to see if a
> better way has been developed?
>

IPC, the Association Connecting Electronics Industries publishes a large
variety of standards that describe how to assemble electronic equipment.

IPC/WHMA-A-620 is a standard for wiring harnesses, and it includes
guidelines on soldering and crimping. It is updated every 5 years or so.
There are a lot more standards that preceded it and a lot more that are
used concurrently with it.

The problem is that you need to be a member of the organization or pay a
significant amount to see these specs. I would bet a number of the old
hands here have had training at some time or another on some of these
standards, but if you are no longer working at that job, the new revisions
and new training are not available to you.

Building codes are published by the NFPA. They allow you to sign up and
view them online. You can't print them or save them, but at least you can
look things up and learn, even if you did not pay. I wish the IPC would do
the same.

As to the original question, I have had very good luck with Anderson
Powerpoles and now only crimp them, using good crimpers. The Powerwerx
crimpers for 15/30/45 and 75 A work well for me.Their larger crimpers broke
very easily. I use hydraulic hex crimpers for larger sizes, and yes
sometimes multiple crimps with several sizes of metric dies are needed.
I've cut open / cross sectioned some of my crimps and verified that they
are good. The wire fills the terminal with no visible voids.

Regards,

Mark
W7MLG