Guaymas Mexico. 1988 Commercial fishing boat dock
Brand new Price club orange 12/3 extension cords (4) Yep 400 feet...
To power a fifty watt rotary squirrel cage blower. Temp was 103F Humidity 88%
Joined each cable to the nest using cable ties. Four per splice.
First failure happened within six hours, the cobra head triplex outlet. Then five more failures the next couple of days. Failure means burned and melted connector = repair.
I gave up and soldered the connectors and heat shrank the terminals and cord jacket. The massively heavy roll lasted many years until the orange jacket cracked and fell off. I didn't feel like the idea of paying ninety dollars in pesos to convert to twist lock plugs and sockets.