One Way To Splice a Power Cable

[techcollect]

Thanks for this Rick

The method you show is the prescribed way used by NASA, in house and by their contractors.
One thing they also specify is using clear or translucent shrink tubing on the connections to allow inspection without disrupting the splices in the event there is a question later. This allows visual confirmation to check in event of leakage into splice area that could cause joint corrosion.
This may be helpful in situations where multiple people work on an assembly. (or where we are getting old and leakage from our little gray cells inside is going out gray and our follicular strands are getting silvered. We are looking at opaque tubing thinking, "I did solder that one, didn't I?")

To Johan's reference on strength, testing has shown these joints to exceed the tensile strength of the unsoldered wire.