This discussion centers on the implications of shorting positive and negative wires in a solar panel system rated at 20 volts and 6 amps, utilizing 12 gauge copper wires. It is established that while the wire temperature will increase due to the short circuit, the 12 gauge wire can handle up to 20 amps, suggesting that the short circuit current will not exceed the wire's capacity. The recommendation is to ground the negative side and use a Transient Voltage Suppressor (TVS) from the positive side to ground for protection against lightning strikes.
PREREQUISITESSolar energy technicians, electrical engineers, and anyone involved in the installation and maintenance of solar panel systems, particularly those concerned with safety and protection against electrical faults.
Yes, wire temperature will increase.John1397 said:I have a solar panel rated 20 volts and 6 amps power comes in on 4 12 gauge copper wires 2 for ground and 2 for positive and it is 50 feet long if positive and negative are shorted togather will the wire get warm?
Is there a reason you are asking this? Do you anticipate some condition where the wires could get shorted?John1397 said:if positive and negative are shorted togather will the wire get warm?
It's going to be kind of hard to draw power out of a shorted solar panel, no?John1397 said:I want to ground both positive and negative to ground this is mounted on a tall tower and when lighting strikes this will give a path to ground.