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Gas tight connections, pressure and surface area

I have been some connector and contactor problems recently. It has led me to wonder about the pressure needed to achieve a gas tight connection and whether that should influence my choice of connectors.

I like banana plugs for their ease of use. The wiping action as they are inserted presumably provides good initial contact but mine seem to need periodic cleaning (which fortunately is easy)

Clamping bare wire under a set screw or through the hole in a five way binding post achieves very high local pressures and I assume it achieves a gas tight connection. Is this correct?

With small spade clips under a screw terminal, high pressures should also be attainable. Are they high enough?

Wrapping the wire around a 5 way binding post or using a large spade clip under the a 5 way binding post greatly increases the surface area. As these terminals are normally hand tightened, is it possible to achieve a gas tight connection?

With old terminals that use a spring connector or a hand tightened knob to clamp the wire, are you better off to limit the wire cross section (and length in some cases) at the connector to increase the pressure?

David



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Topic - Gas tight connections, pressure and surface area - energyandair 13:04:24 12/15/04 (11)


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