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-   -   Heat from power cord. (http://www.homebrewtalk.com/f170/heat-power-cord-365079/)

tyfernandez 11-02-2012 07:14 PM

Heat from power cord.
 
Hi, Longtime lurker first time poster. Please be nice.

I recently upgraded my BK to include a 2000w 120v Rhemm LD heating element. I used a PVC coupler and JB weld to secure and protect the wiring of the element.
http://i.imgur.com/US0e4.jpg

My question is on the warmth or rather the Heat that the power cord is putting off. I used 12/3 SJOOW and 12 guage ring terminals to wire the element. Right at the point where the cord goes into the PVC structure the cord gets fairly hot. I was just testing it today after 20 mins of being on it was over 100 degrees. The rest of the cord feels pretty normal. Should I be concerned about this?

I'm wanting to add another element and some control to my kettle but I'm worried that I might burn my house down. Please help!

stlbeer 11-02-2012 09:13 PM

2000w at 120v is 16.6 amps. 12/3 is rated for 20 amps. I would think you'd be fine. But if it's getting that hot I'd change out the extension cord for 10/3. How long is the cord now?

CidahMastah 11-02-2012 09:16 PM

I am no electric guru, but I think the law of common sense should apply here.

It was worth it to me to fork out a few more bucks and avoid pvc and plastic on areas that IMHO should get metal. Plastic and PVC degrade with heat over time. Will it burn your house down? Not sure but do let us know if it does.

I will let the guys with credentials take a shot at answering your real question

BREWSTERED 11-02-2012 09:45 PM

It is normal for the power cord gets a little warm. At least with a power cord extension. I have 2 electric heater elements at 1500w with a 110v outlet. I try to have it connected to GFI outlets. Or at least the GFI is at the box to the house. Less electrocution issues or if the controller burns out. I have mine thermostatically controlled by a light dimmer switch! I don't think my wired connection to the heater element gets warm though. I don't use plastic when connecting to the keg. Although the dimmer switch is plastic and did distort it. I may have to replace it soon.

P-J 11-02-2012 10:36 PM

Welcome to the forum. I hope you enjoy participating here.

You say:
Quote:

I used 12/3 SJOOW and 12 guage ring terminals to wire the element.
And then:
Quote:

Right at the point where the cord goes into the PVC structure the cord gets fairly hot.
I say that your crimp connection is not a solid current carrying bond with the wire. (You probably used a cheap HomeDepot crimp tool.) If it is posible to open the coupler to get at the element connections, just solder (radio solder & flux) the crimp connectors to the wires. With that you will be good to go.

Try it. You will see that I am correct.

P-J

Quote:

Originally Posted by tyfernandez (Post 4553364)
Hi, Longtime lurker first time poster. Please be nice.

I recently upgraded my BK to include a 2000w 120v Rhemm LD heating element. I used a PVC coupler and JB weld to secure and protect the wiring of the element.

My question is on the warmth or rather the Heat that the power cord is putting off. I used 12/3 SJOOW and 12 guage ring terminals to wire the element. Right at the point where the cord goes into the PVC structure the cord gets fairly hot. I was just testing it today after 20 mins of being on it was over 100 degrees. The rest of the cord feels pretty normal. Should I be concerned about this?

I'm wanting to add another element and some control to my kettle but I'm worried that I might burn my house down. Please help!


tyfernandez 11-02-2012 11:07 PM

It's only a 4 foot cord so i can't imagine the length is causing it.

Thanks PJ. I'll try that this weekend. I couldn't find my good crimper so I made use of some pliers. Didn't think it would matter. I'll let you know what the results are.

By any chance could this be causing poor performance in the BK? I'm not getting the temps I thought I would from this element.

Thanks again. I don't think I'd brew without this forum.

P-J 11-02-2012 11:48 PM

Poor performance? Absolutely without any doubt. The element is not delivering anywhere near the power that it is rated for.

Quote:

Originally Posted by tyfernandez (Post 4554015)
It's only a 4 foot cord so i can't imagine the length is causing it.

Thanks PJ. I'll try that this weekend. I couldn't find my good crimper so I made use of some pliers. Didn't think it would matter. I'll let you know what the results are.

By any chance could this be causing poor performance in the BK? I'm not getting the temps I thought I would from this element.

Thanks again. I don't think I'd brew without this forum.


tyfernandez 11-03-2012 03:29 PM

Just wanted to follow up with what it looked like underneath the coupler. I think PJ nailed it. The minute i unscrewed the coupler a horrible burning stench was released. I'm amazed I couldn't smell it prior to that.

Looks like one of the ring terminals fried.
http://i.imgur.com/TZ0kr.jpg

It also melted some of the element. I'm debating if i should scrap the whole element or not. Any suggestions?

http://i.imgur.com/Ps2lV.jpg

I'm not even sure I could get the coupler off the element to rewire it as the JB weld is working quite correctly.

Thanks guys!

DustBow 11-03-2012 06:14 PM

Just my humble opinion, elements are cheap. Start over.

P-J 11-03-2012 10:16 PM

Quote:

Originally Posted by tyfernandez (Post 4555266)
Just wanted to follow up with what it looked like underneath the coupler. I think PJ nailed it. The minute i unscrewed the coupler a horrible burning stench was released. I'm amazed I couldn't smell it prior to that.

Looks like one of the ring terminals fried.
It also melted some of the element. I'm debating if i should scrap the whole element or not. Any suggestions?

I'm not even sure I could get the coupler off the element to rewire it as the JB weld is working quite correctly.

Thanks guys!

That element needs to be replaces for sure. The burnt terminal is beyond repair or use.

I also strongly advise you to cut several inches off of the power cord to remove the part that is probably heat damaged as well.

Bottom line, I'm amazed with the amount of damage that happened. This is one of the reasons that I always crimp and then solder all of my high current connections. I do that even if I use a Pro crimp tool.

Wishing you great success.

P-J


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