Hydraulic crimping of 25mm 19 strand cables in flat crimp pins?

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Evening chaps. What's the rules on this? I can't specifically see anything relative to the 19 stranded cables.

My boss says he won't crimp in consumer units, avoid it all costs, he rather strip a whole house down or add additional boxes than use a single crimp inside a CU. Fair play to him.

However on commercial jobs I've seen crimped solid core cables (mind you a gazillion solid strands) with mega amperage going through no probs.

So anyway, I tried it out on Doncaster Cables finest 25mm2 19 stranded tails cables, terminated via flat pin crimps using a hydraulic crimper, no gaps, I mean it literally looked like 19 strands became one lol...

I then shrinked the crimp, and then inserted the pin into a din module, worked a treat, very solid... please note, this was only done in a test unit and not at an actual job.

Question is, why is the boss and everyone else against this method of terminating in domestic installations?

...I'm still blossoming, but my mind tends to do too much critical thinking, which then leads to my mouth going rambo lol

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