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Grounding Electrodes

Posted By: Dana
Date: Wednesday, 30 March 2011, at 1:01 a.m.

Some comments on an old subject?

Because my Transco manifold was setup that way, it came with a grounding electrode installed by default on the debris trap.

It connects directly to the ground, which I provided a dedicated dual 8 copper electrode system connected with #6 wire.

I have never owned one without it, but it seems to me by having this sort of 'controlled flashback' it would prevent a possibly dangerous situation.

When the tube is first heated, there is an obvious arc stream to the electrode and as it is heated the stream begins to drop away.

I have never experienced a flashback situation and I am sure the grounding electrode is the reason.

Transco manifolds they use KF fittings between major parts. This has proven to be one of the finest features of the unit. It makes it completely expandable with standard vacuum fittings. I imagine it added several dollars to the cost of the glasswork, but the serviceability is greater.

Connection of KF fittings is merely a channel-clamp that maintains slight pressure on an O ring between ground-face parts so there is virtually no stress of compression on the parts.

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