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Original poster: "BunnyKiller by way of Terry Fritz <twftesla-at-qwest-dot-net>" <bigfoo39-at-telocity-dot-com>
Tesla list wrote:
>Original poster: "Loudner, Godfrey by way of Terry Fritz
>Can plumbing solder be used to make electrical connections or is electrical
>grade really necessary. I'm going on ebay to look for big spools of solder.
electrical grade is best for electrical applications due to the resin
flux used as the cleaner. Plumbing solder ( if it has a core of flux) is
normally an acid type of flux. Eventually the acid residue from plumbing
solder will weaken the joint in electrical applications. What you can do
is find a hi quality type of plumbing solder without the flux core (
especially for copper pipe) and apply the resin from a seperate
container to the joint being soldered. I remember a type of flux that
was made specifically for copper pipe joints ( i think it was called
C-Flux) but im not too sure if it was resin or acid.
another thing to consider is that electrical grade solder melts at a bit
lower temp than plumbers grade does......
hope this helps