Good point Neil.
I have always used liberal amounts of Silicone Dielectric grease.
That and liquid electrical tape have worked for me.
Bryan
Albaugh, Neil wrote:
>TD;
>
>Some time ago I pontificated on the various types of switch contacts--
>ones that were suitable for power and those suitable for low- voltage,
>low- current (so-called "dry circuit") applications. Connector pin
>contacts are similar.
>
>At very low voltages & low- currents a contact will develop a thin oxide
>on its surface that acts as an insulator. Higher voltages & currents can
>punch through this oxide and make good contact but for dry circuit
>applications such as data logging sensors, etc., a plating of gold on
>the pins is necessary to prevent the oxide growth.
>
>Hope this explains the basic problem.
>
>Regards, Neil Tucson, AZ
|