Help With Broken Connection

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Help With Broken Connection

This topic has 7 replies, 5 voices, and was last updated 12 April 2018 at 14:03 by Michael Gilligan.

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12 April 2018 at 00:54 #31943
“Bill Hancox”
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@billhancox
227 IEC 53(RVV) wire core
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12 April 2018 at 00:54 #349880
“Bill Hancox”
Participant
@billhancox
Today I attempted to repair a broken electrical connection on a 227 IEC 53(RVV) power cable. The spade connector has broken off for some reason. When I attempted to strip the wire back with a wire stripping tool it the core fell apart in a small cloud of grayish colored powder. There is a very fine stranded copper core that seems to be encased in some sort of clay type jacket that falls apart at the slightest touch. The broken off connector appears to be a standard spade connector. Does this cable require that I use a special type of spade connector or is there a secret to stripping it? Any help or advice would be appreciated. The wire serves a high heat application.

Bill
12 April 2018 at 07:05 #349888
David George 1
Participant
@davidgeorge1
Hi Bill the cable is I believe faulty it has passed its best and lost its flexibility. I would replace it with a pfa and glass fibre insulated cable which is what I use in furnaces and hot use mould tooling up to 250 degree temp. R S components are one seller.

David
12 April 2018 at 09:23 #349903
Ian P
Participant
@ianp
What is a 227 IEC 53 (RVV)?

Your description of the cable seems to indicate that it is some type designed for high temperature operation (mineral filled?) so probably does need special termination equipment and connector.

Why not just get a replacement cable and be certain.

Ian P
12 April 2018 at 09:55 #349907
Michael Gilligan
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@michaelgilligan61133
Posted by Ian P on 12/04/2018 09:23:13:

What is a 227 IEC 53 (RVV)?

.

It appears to be a common [PVC] 3-core flex: **LINK**

http://www.wellshin.com.tw/en/mod/product/index.php?REQUEST_ID=246dfb750606ad892550bde28048718e2e7d5347ea00f14737e89c54a8a8ed56

**LINK**

https://senhall.en.made-in-china.com/product/QvOJIjzyhEcT/China-Power-Cord-227-IEC-53-RVV-300-500V-.html

MichaelG.

Edited By Michael Gilligan on 12/04/2018 09:56:32
12 April 2018 at 10:46 #349922
Ian P
Participant
@ianp
I ruled out it being a standard IEC type kettle lead because of it having 'standard' spade connectors (whatever those are). If one end of this cable has a 13A plug then I would expect some sort of female termination.

I suppose the greyish powder could be decomposed plastic insulation but I dont think I have ever seen a heat damaged cable turn to dust.

There are 'hot condition' IEC ready made moulded cable assemblies available maybe that would be the simplest solution.

Ian P
12 April 2018 at 11:18 #349932
Neil Wyatt
Moderator
@neilwyatt
If it has a notch below the earth socket on the IEC plug it's a high temperature version as used for kettles etc.

These also fit normal sockets but standard IEC plugs won't fit a high temperature socket as these have a raised piece to engage the notch.

Neil

en.wikipedia.org/w/index.php?title=IEC_60320&action=edit&section=7

Edited By Neil Wyatt on 12/04/2018 11:20:35
12 April 2018 at 14:03 #349956
Michael Gilligan
Participant
@michaelgilligan61133
Posted by Michael Gilligan on 12/04/2018 09:55:18:

Posted by Ian P on 12/04/2018 09:23:13:

What is a 227 IEC 53 (RVV)?

.

It appears to be a common [PVC] 3-core flex:

.

For clarity, I should mention that both of the links I posted refer to 'by the metre' flex, rated for modest temperatures … I see no reference to 'made-up' cables, or to high-temperature rating.

MichaelG.

Edited By Michael Gilligan on 12/04/2018 14:03:57
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