Originally Posted by Lloydg
I just measured my 50 amp cord on my Surveyor and it's 28'. I have a question, however. I'd like to buy a 30' 30 amp cord for those instances where I need more length than the 28' FR provided. I only have one AC so if I need to run my RV on 30 amp I should be OK. Does this logic sound logical? A 50 amp extension cord is so expensive and heavy that I thought the 30 amp cord would be a sensible way to go. Comments please?
Should be fine. Assuming the outlet your plugging into is wired correctly with the proper breaker (30A) it will trip when you exceed the current draw. If your 50A cord is detachable, it would be safer and preferable to get a cord that has the 30A plug and the 50A locking receptacle built in. I think Marinco makes those up to 35' and Conntek (never used this brand) makes them to 50'. I got the impression this was you plan but I couldn't be sure.
Be warned however the combination of one A/C unit, a hot water heater (running on it's electric element), and a microwave will pop a 30A all day long. I've done it many a times. [It's really beyond me why camper manufacturers haven't made 50A 120/240V the standard for hook ups. One, two, even three A/C's, water heater, microwave, air compressor, ARC welder... Plenty of headroom