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Use Of Cable Ferrules

Former Community Member
Former Community Member
Morning gentlepeople of the IET forum.


I'm just throwing this out there to try a get some opinions on cable ferrules and if people use them and where.

From my understanding, they are mainly used during panel builds, IT equipment and even on flexible cables. However, I recently went to a domestic property to perform an EICR and every cable connected to the RCBOs (ignore the earth fly lead which already comes crimped from the manufacturers) had ferrules clamped on the ends.

Clamped on every cable with the exception of the cooker and garage supply, which from memory i believe were both 6mm cables.

in hindsight, i should have taken a picture and shared this, but i didnt, so I failed you all!

To be fair, the electrician who did this, I can see committed to being very neat and tidy. One of the nicest installs i have seen in a while.


I personally have never done this with T+E so just found the ferrule thing a bit strange and wondered if it's something others do, and maybe this could or should be a future reg!?? Pro's and Con's i suppose. 

My thinking was that it does protect the copper cable inside the ferrule, allowing for a better connection too i suppose!?
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    I have seen one domestic installtion use them , and very presentable and clean installtion it looked too , and it was new build , but as you say pretty rare , on the kits for the bootlace type , there is a difference in quality , so look at tools and kit first , and reading GKenyons useful guide post is probebly the sort of place more likely , and seen them on 4 core three phase from transformers and on transformers and tool to clamp them,looks like a pair of boltcutters
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    I have seen one domestic installtion use them , and very presentable and clean installtion it looked too , and it was new build , but as you say pretty rare , on the kits for the bootlace type , there is a difference in quality , so look at tools and kit first , and reading GKenyons useful guide post is probebly the sort of place more likely , and seen them on 4 core three phase from transformers and on transformers and tool to clamp them,looks like a pair of boltcutters
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