Number of crimps per lug

Jam 21 days ago

Hi all,

Further to a previous discussion on this forum a while back, is anyone aware of guidance on the number of crimps to be made on cable lugs, other than BS7609 which refers on to manufacturer's instructions?

The IET Guide to Cables & Cable Management just refers back on to BS7609 and emphasises that it's a matter of good workmanship etc.

I'm wondering what people refer to when making off lugs from "generic" suppliers etc and if there's a table or similar somewhere that I'm missing.

Jam

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0 AJJewsbury 20 days ago

I suspect there isn't a simple rule of thumb - a lot would depend in the size and geometry of the crimp and the relative size of the tool. For small lugs (e.g. for ≤4mm²) even a cheap ratchet crimper will likely compress pretty much the whole tube in one go - and subsequent attempts may do more to disturb the first go than provide any improvement. Bigger stuff and relatively thin jaws on the tool I could see might take a few goes to compress a decent length of the tube.

- Andy.
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0 AJJewsbury 20 days ago

I suspect there isn't a simple rule of thumb - a lot would depend in the size and geometry of the crimp and the relative size of the tool. For small lugs (e.g. for ≤4mm²) even a cheap ratchet crimper will likely compress pretty much the whole tube in one go - and subsequent attempts may do more to disturb the first go than provide any improvement. Bigger stuff and relatively thin jaws on the tool I could see might take a few goes to compress a decent length of the tube.

- Andy.
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Number of crimps per lug

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