Forum Discussion
randallb
Apr 22, 2015Explorer
You switch the negative if you are turning something on and off repeatedly over a period of time; i.e. a vehicle being transported by boat from Europe or Japan. There will be no arcing at the contacts. You switch positive to take the fire hazard out of the equation. All racing sanctioning bodies require that your master switch be on the hot or positive side. Once this circuit is broken there is less chance a spark can be generated during the extraction of the driver if the jaws of life or a power saw are required.
Randy
Randy
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