Charging supplies for road trips, a list with links.

[JamieGeek]

Forgot the zero? Here is a 100 foot extension:

Ah but that is for the other side of the EVSE--that one goes in between the plug and the EVSE, not on the car side. As such it is likely less expensive so may be more worthwile.

(I have a similar one, but its a 30 amp one for the RV...)

 

[Billyk24]

Ah but that is for the other side of the EVSE--that one goes in between the plug and the EVSE, not on the car side. As such it is likely less expensive so may be more worthwile.

(I have a similar one, but its a 30 amp one for the RV...)

and I hook my Clipper Creek EVSE to this and have a 120 foot cord length.

 

[JamieGeek]

and I hook my Clipper Creek EVSE to this and have a 120 foot cord length.

Yeah I hook my 50 footer to the Clipper Creek and get 70 feet.

 

[dbsb3233]

Forgot the zero? Here is a 100 foot extension:

Is that really a picture of a 100' cord? Just eyeballing the proportions, it looks more like maybe 25' to me.

 

[Billyk24]

Is that really a picture of a 100' cord? Just eyeballing the proportions, it looks more like maybe 25' to me.

The photo may not be 100 feet but it is listed for sale on the site.. I can image how heavy this would be.

 

[macchiaz-o]

The photo may not be 100 feet but it is listed for sale on the site.. I can image how heavy this would be.

No need to guess... The web site says this easy-to-use-improperly cord weighs about fifty pounds.

 

[dbsb3233]

The photo may not be 100 feet but it is listed for sale on the site.. I can image how heavy this would be.

Not seeing any 100' cables on Amazon, but there's a bunch of 50A 50' ones. Here's one that weighs 34 lbs.

https://www.amazon.com/Parkworld-692231-NEMA-14-50-Extension/dp/B072BNG188/ref=sr_1_14?crid=11JGHP4ZN2WAN&dchild=1&keywords=40+amp+extension+cord+100+ft&qid=1594502868&sprefix=40+amp+ex,aps,218&sr=8-14&th=1

 

[ajmartineau]

Yes copper is very heavy.

 

[GoGoGadgetMachE]

Yes copper is very heavy.

so are a lot of coppers ?

 

[NoMoShocks]

Manufacturers say not to use extension cords because they cause a lot of accidents like ladders. They can be used safely if you size correctly and keep them in good condition. To Charge at 240 V when a Dryer outlet not available or you don't want to move the stove out of the way, you can buy a phase combiner here Quick 220 Systems: Outlet Tester - 110 to 125 Volts AC for about $250 or just buy a couple short 12 AWG extension cords and an outlet tester to make your own like this. Be careful to head the Warnings as this type of adaptor needs to be handled with care to avoid a shock. Just don't touch the prongs of one plug while the other is plugged in. Make up the prong cover as shown in the fires warning.

 

[macchiaz-o]

Manufacturers say not to use extension cords because they cause a lot of accidents like ladders. They can be used safely if you size correctly and keep them in good condition. To Charge at 240 V when a Dryer outlet not available or you don't want to move the stove out of the way, you can buy a phase combiner here Quick 220 Systems: Outlet Tester - 110 to 125 Volts AC for about $250 or just buy a couple short 12 AWG extension cords and an outlet tester to make your own like this. Be careful to head the Warnings as this type of adaptor needs to be handled with care to avoid a shock. Just don't touch the prongs of one plug while the other is plugged in. Make up the prong cover as shown in the fires warning.

I am not an electrician, but this does not look safe.

It does not take into account the 125% overrating rule.

It ignores the reason why two pole breakers are intentionally designed to trip both poles simultaneously. In this hack, the device being powered may suddenly receive half the voltage it was expecting. What will happen?

It causes the two phase lines to be of differing lengths. The resulting voltage might not form a clean sine wave.

I have no idea what else is wrong with this (again, I am not an electrician), but I'd bet there are other risks not presented.

 

[JamieGeek]

I am not an electrician, but this does not look safe.

It does not take into account the 125% overrating rule.

It ignores the reason why two pole breakers are intentionally designed to trip both poles simultaneously. In this hack, the device being powered may suddenly receive half the voltage it was expecting. What will happen?

It causes the two phase lines to be of differing lengths. The resulting voltage might not form a clean sine wave.

I have no idea what else is wrong with this (again, I am not an electrician), but I'd bet there are other risks not presented.

It acutally makes a loop between the two lines (circuit) and thus if one of the breakers trips there is no current (yes the other line will still be "hot" but the current will stop flowing unless there is another path for it to go on).

You can purchase adapters to do this sort of thing (and you can buy a harness to turn two Honda Inverting generators into a similar setup) but it is not recommended, not code, and can be dangerous.

Of course "people have been doing it for years" LOL

 

[macchiaz-o]

It acutally makes a loop between the two lines (circuit) and thus if one of the breakers trips there is no current (yes the other line will still be "hot" but the current will stop flowing unless there is another path for it to go on).

I do not see the loop in the diagram shown. The grounds are all connected, but each hot line is going to a separate hot pin on the 250V receptacle. I thought that within a 250V appliance, the two hot lines are tied together so that the separate 125V inputs just add together to get 250V to ground?

If one line disconnects and not the other, won't there still be continuity from the remaining line to ground?

How might a device behave when it is happily getting 220-250V at first and then a single breaker trips and it becomes 110-125V?

 

[generaltso]

If one line disconnects and not the other, won't there still be continuity from the remaining line to ground?

No. In 240v circuits with no neutral, the return for one phase uses the the other hot wire when it’s out of phase for its return. Technically, a ground isn’t even require except for safety. That’s why you often see hardwired 240v electric water heaters with only two wires.

 

[timbop]

Manufacturers say not to use extension cords because they cause a lot of accidents like ladders. They can be used safely if you size correctly and keep them in good condition. To Charge at 240 V when a Dryer outlet not available or you don't want to move the stove out of the way, you can buy a phase combiner here Quick 220 Systems: Outlet Tester - 110 to 125 Volts AC for about $250 or just buy a couple short 12 AWG extension cords and an outlet tester to make your own like this. Be careful to head the Warnings as this type of adaptor needs to be handled with care to avoid a shock. Just don't touch the prongs of one plug while the other is plugged in. Make up the prong cover as shown in the fires warning.

That may work if you are careful and understand how it works. Otherwise it is a horrible idea