Truefire
Truefire
I have a slide-in truck camper with a rear backup light that is mounted on the camper and operated from the cab of my pickup truck via a Radio Shack, single pole accessory switch rated for DC voltage. see pic below of exact type switch.
I have this switch fed from the truck battery. I do also have a set of three ways inside the camper that operate the light as well. The hot feed for this set of three ways is not fed from the truck battery but rather from the onboard camper battery. I can operate either the three way switches or the switch in the cab independently, there would never be a time when they both would be in the closed position at the same time. So in essence when the single pole switch in the cab is on, one of the three ways would be open thereby hindering any voltage from coming into contact with the hot feed from the other battery source. And vice versa with the three ways, the single pole in the cab would then be off.
My question is the following: I want to know what your thoughts are in regards to feeding the three way hot from the truck battery which would send back voltage down the switchleg to the switch inside the cab of the truck which has its hot contact fed from a different battery ( a different phase if you will)
Although, i know the switches would never be both operated simultaneously so as to engage two different battery sources through those contacts, i was wondering if you thought the contacts inside this cheap switch as shown above would be too close together although "Open", if the closeness of the open contacts would allow the voltage to jump this small gap and create some sort of fire hazard potential, from heat created from the potential difference of the two voltages?
I understand this is not the ideal way to do it, I am trying to prevent having to go way over budget in the build by buying more and more stuff such as pin contacts, bases, etc'
hopefully my written explanation and the schematic is not too confusing.
Thanks, Chris
I have this switch fed from the truck battery. I do also have a set of three ways inside the camper that operate the light as well. The hot feed for this set of three ways is not fed from the truck battery but rather from the onboard camper battery. I can operate either the three way switches or the switch in the cab independently, there would never be a time when they both would be in the closed position at the same time. So in essence when the single pole switch in the cab is on, one of the three ways would be open thereby hindering any voltage from coming into contact with the hot feed from the other battery source. And vice versa with the three ways, the single pole in the cab would then be off.
My question is the following: I want to know what your thoughts are in regards to feeding the three way hot from the truck battery which would send back voltage down the switchleg to the switch inside the cab of the truck which has its hot contact fed from a different battery ( a different phase if you will)
Although, i know the switches would never be both operated simultaneously so as to engage two different battery sources through those contacts, i was wondering if you thought the contacts inside this cheap switch as shown above would be too close together although "Open", if the closeness of the open contacts would allow the voltage to jump this small gap and create some sort of fire hazard potential, from heat created from the potential difference of the two voltages?
I understand this is not the ideal way to do it, I am trying to prevent having to go way over budget in the build by buying more and more stuff such as pin contacts, bases, etc'
hopefully my written explanation and the schematic is not too confusing.
Thanks, Chris
