30A wire splice?

[Iraqvet05]

I removed my hardwired EMS from the TT in anticipation of trading it in the next few days. I need to reconnect the 30A, 10 ga stranded power feed back together or find another approach. Can I use wire nuts on heavy, stranded wire and place it all in a junction box or should I just leave a small section (ca 3') out of the cord and run it straight back to the distribution panel?

[o2silverado]

Wire nuts will work just fine inside of a junction box. All though rewiring back to the box would be preferred.

[Grumpy]

Originally Posted by o2silverado

Wire nuts will work just fine inside of a junction box.

But they should be taped too since stranded has a tendency to loosen easier.

[Rustynuts]

Personally I would use a closed end crimp terminal over a wire nut.

[ricemanwm]

Wire nuts with tape would work in a juntion box. These connectors would make a better connection. 2 wire Polaris 4-14 AWG insulated tap connector. Allen head set screw. I’d still put them in a juntion box. Probably over kill since you’re selling but certainly won’t vibrate loose for the next owner.

2 Wire Polaris 4-14 AWG Insul-Tap Connector, Allen Head https://www.amazon.com/dp/B00ZEVDCCS..._XZ37BbVGES2NG

[Scott_Trailer_Newbe]

Originally Posted by Rustynuts

Personally I would use a closed end crimp terminal over a wire nut.

As long as it’s stranded wire, not solid wire.

[Rustynuts]

Originally Posted by Scott_Trailer_Newbe

As long as it’s stranded wire, not solid wire.

The original post says he needs to connect strand wire.

[wabirch]

I went with a set of M / F plugs.

[Vicr]

Most electricians, and I am one, would use a butt splice with shrink tubing over it.

[o2silverado]

Originally Posted by Vicr

Most electricians, and I am one, would use a butt splice with shrink tubing over it.

I would have ran it back into the panel and forgot about the 3' . The new owner will never miss what he never had. Better than finding a splice when it burns off. But that's just me .

[Vicr]

Originally Posted by o2silverado

I would have ran it back into the panel and forgot about the 3' . The new owner will never miss what he never had. Better than finding a splice when it burns off. But that's just me .

After 35 years in the trade I've never heard the phrase "when it burns off". Please enlighten me.

[2naEagle]

Originally Posted by o2silverado

I would have ran it back into the panel and forgot about the 3' . The new owner will never miss what he never had. Better than finding a splice when it burns off. But that's just me .

This is what I would do also. I do not like splices when they can be avoided.

[o2silverado]

Originally Posted by Vicr

After 35 years in the trade I've never heard the phrase "when it burns off". Please enlighten me.

In 35 years you have never repaired a connection that has burnt off ? What electrical field are you in?
When a loose connection heats over and over again till it burns off. Butt splices will fail at some point sooner or later. I prefer as few connections as possible. Connections= resistance. Resistance =heat.

[Vicr]

Originally Posted by o2silverado

In 35 years you have never repaired a connection that has burnt off ? What electrical field are you in?
When a loose connection heats over and over again till it burns off. Butt splices will fail at some point sooner or later. I prefer as few connections as possible. Connections= resistance. Resistance =heat.

o2, I run multi-million dollar electrical construction projects in commercial, data center and industrial facilities. I have never heard the term "burnt off". I see you are from PA so I suppose it is a regional thing. Chicago calls flex Greenfield, in California they call 4 &11/16 boxes "5 squares" some guys say "old work box" and some say "cut-ins". Any 3M butt splice with 3M or Panduit shrink tubing splice will last decades when done properly unless constant exposure to salt air or extreme prolonged heat is present.

Vicr
IBEW Local 46
Seattle, WA

[o2silverado]

Vicr, it is understandable if you are strictly new construction. Us out here in the maintenance electrical field have undoubtedly repaired more than 1 connection that has burnt up due to failure. Nice to chat with a fellow electrician ! And they will always be 5×5 's in my book
Happy Thanksgiving !

[Jmac000]

Originally Posted by o2silverado

Vicr, it is understandable if you are strictly new construction. Us out here in the maintenance electrical field have undoubtedly repaired more than 1 connection that has burnt up due to failure. Nice to chat with a fellow electrician ! And they will always be 5×5 's in my book
Happy Thanksgiving !

I have been in the HVAC field for 30+ years putting 30amp 10ga THHN wire together in Air conditioner condensers, NEVER had one fail due to heat stress, or for that matter any reason whatsoever. Now granted, this only single phase 208-240 volts systems.

Even in 277v lighting systems we never had a wire nut fail? I suppose if your working on 460v 3Ø then you'd want something 'more substantial'

[Riich]

Originally Posted by Jmac000

Even in 277v lighting systems we never had a wire nut fail? I suppose if your working on 460v 3Ø then you'd want something 'more substantial'

Another fellow 40 year master electrician speaking here. Although I work mainly oilfield electrical.

We use wire nuts on 480VAC all the time. No issues whatsoever if done properly. It has nothing to do with 208/120, 277, or 480. It is the load (current), and the higher the current the more heat generated. Add in any vibration and you may experience that "burn off" mentioned.

Make a good secure splice and roll with it, it will be fine.

But then you both know this.

[Iraqvet05]

I worked on this again the day before we traded in the TT. I don't know how Jayco attaches the cord relief to the back of the Wyco distribution panel but I could not get it to release to save my life. I ended up splicing the ends together with red wire nuts.