I should be OK using it at lower levels intermittently. It will required a heavier cord, if I want to run it at max current continuously. I also have a plasma cutter that demands 50 amps. The 30 amp capacity of my cord is good for my machine. In short, I can run 100' of 10/3 SJOOW (not necessarily any 10/3) and should not suffer critical voltage drop, provided my parent circuit has the capacity necessary. The Road Power 30 Amp RV cord by Coleman Cable is one of the more simple RV extension cords you can get with a couple of good features like an LED power indicator and a pure copper core. ![]() (or consult a professional) I did validate my research with a pro. The cable is SOOW, 10/4, 30 Amp copper with a 600 Volt rubber jacket. I recommend checking your machine's requirements, your circuits capacity, and running the math yourself. This AC WORKS brand 50ft L14-30 extension cord is heavy-duty and made of durable construction. supply voltage is adequate to handle the drop at the end of the cord, current capacity of the parent circuit is well above our needs, and the machine has an operational tollerance to work properly with the results. 10/4 Heavy Duty Outdoor L14-30 Amp Generator Extension Cord with Lighted End, Orange/Grey. ![]() Electrical Electrical Cords Extension Cords. We usually take several things for granted. Get free shipping on qualified 30 amp Extension Cords products or Buy Online Pick Up in Store today in the Electrical Department. 30 Amp RV Extension Cord 50 FT Outdoor with Grip Handle, Flexible Heavy Duty 10/3 Gauge STW 3 Prong RV Power Cord Waterproof with Cord Organizer. You really do need to run the full equation to be sure you are OK. PrimeWeld Welder Extension Cord, SOOW Rated, 50 amp, 250v NEMA 6-50 Heavy Duty Welding Cable, 6 Gauge, (25ft) 4.9 out of 5 stars 122. My research told me to expect a voltage drop of about 2% with my 40' extension, so i should be able to supply my welder's maximum demand of 28 amps with a voltage of about 238 volts. I measured the supply voltage at the outlet to be 243 volts. IF the hardwired circuit is marginal for your needs, you have just added a small, but potentially critical, degredation that would drag the overall capacity of the circuit below acceptable limits.įor me, I am running a 40' extension cord, with a capacity of 30 continuous amps at 300 volts, on a 50 amp circuit. ![]() This all expects that you are well within the capacity of the hard wired circuit. Limiting to 100' of extension cord, should mean that you can deliver the rated capacity of the extension cord from the outlet, to the far end of the cord, without excessive voltage drop, heat, etc.
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