For example you can ensure that your porch lights are located close to your front door where the roof will somewhat protect them.
How to keep outdoor christmas lights from shorting out in the rain. One of the easiest ways to prevent rain from shorting out wires and keep your outdoor lights from sparking is to keep them close to the house and undercover. Plug the Christmas lights into your Ground Fault Circuit Interrupter GFCI or outdoor outlet. Why do my outdoor Christmas lights keep turning off.
After checking that you have to wrap electric tapes around the plugs. Wrap Teflon tape electrical tape securely and carefully around the plugs completely coating the plug to prevent water from getting in and effectively creating a water-tight seal. If youre using standard Christmas lights with pass-thru plugs go ahead and lay a small piece of electrical tape on any exposed connectors or face them downwards so that water cant collect.
Whenever possible keep them off the floor to prevent water from pooling around them on rainy days. Cracked or worn out wiring of the light strand may cause a voltage leakage which can lead to a ground fault. Click to see full answer.
Make sure to seal off the back of your Christmas light connection with a gasket and weatherproof plug. Installing Christmas lights using bare metal staples or nails can damage the wiring. Store your lights in a plastic storage container or bag and keep them free from moisture rain and humidity.
In the old days we did everything we could to keep moisture out of C7 and C9 sockets. Duct tape or electrical tape can be put on the outdoor extension cord to keep it dry. One set of christmas lights was plugged into the garage gji plate.
When one of the fail resistant bulbs fails its resistance drops from the resistance of the filament to zero as the bypass takes over. I isolated the section that was causing the trip which consisted of 4 separate extension cords each feeding several light strings to try to figure out which one was shorting out. Most people have never heard of weep holes on Christmas light sockets but they are vitally important in order to reduce GFCI issues.

