Electric

[nighttrain07]

Hello, I have a 50-amp service in my park model, and I need 150 ft of a cold-weather, waterproof extension cord to power it up. What is the best one that is not going to break the bank?

 

[bigbAZ]

SO cord is good to -40F. Normally you would need 6/4, but without knowing the total distance (you said the 150 feet is an "extension", so is there more?) and the total load we cannot do a voltage drop calculation. Those 2 numbers are needed for sizing.

Also need to know if this is going to be hard wired or plugged in.

As far as breaking the bank, typical pricing is $5.00 to $7.00/foot. 150 feet will weigh close to 100 lbs!

 

[workinonit]

I would use 6/4 SO. You will have about 5.5%(7 VAC) voltage drop at 50 amps with 150 ft of cable. It may not hurt to bump up to 4/4 if you will be needing to run AC units.

 

[SpencerPJ]

Park Model? My guess, you likely need an electrician to run a new, buried line to power it. That is a long extension cord for sure.

 

[workinonit]

I have 2 100 foot extension cords. One for 30 amp and one for 50 amp.

 

[Gary RV_Wizard]

Ditto what the others said. Type SOOW 6/4 . 4/4 is better and maybe necessary if your typical power need is close to the 50A peak. For that length of run and the need for a fixed 50A/240 receptacle at the end, I recommend a hardwired buried cable rather than a portable "extension cord". Type UFB or other cable suitable for direct burial.

But it is gonna break the bank. For SOOW, figure $1100+ from an online discount source and $1500+ from local electrical suppliers. UFB is a little less expensive.