EN60204 and twin ferrules

The EN 60204 compliance is assured because a dual "bootlace ferrule" is exactly designed to make 2 single wires into a single item for the clamping screw. I think that the 2 wires part comes from bolt lockdown where conductors form a loop under a washer and nut. 2 loops are obviously not a stable arrangement. Bootlace ferrules are designed to hold the core of a fine wire cable together and to prevent damage to the fine wires, in something like a chocolate block type of connection. A double bootlace simply holds the fine wires of 2 or more (given suitable size) fine wires together so that they are all correctly aligned and clamped by a single screw. I have never seen this arrangement (given a properly crimped ferrule) fail.

As you can see above they come in big sizes, that one is 25mm2, and much better for tails than even the more flexible type as shown

Thank you David - the body of agreement continues to grow.

When you say that 60204 compliance is assured, is that based upon what your experience as a mighty fine engineer tells you in your own interpretation of 60204 or is it based upon some published official guidance that I've yet to locate? Not that I'm doubting your opinion of course!

I'm still slightly cautious because there does seem to be a minority who forbid the use of twin ferrules in the land of 60204 and I don't want to rely upon the occasional twin ferrule only to have a splendid bespoke machine rejected by an over-zealous compliance officer at a client's premises. If only there was some sort of official clarification which I could wheel out in such an eventuality. It strikes me that there is justifiable reason for the definition of "conductor" (as used in the 60204 clause relating to the 1 wire/2 wire issue) in the preamble of 60204 to be extended to refer to twin ferrules.

So much discussion about the humble ferrule - who'd have guessed....

Thank you David - the body of agreement continues to grow.

When you say that 60204 compliance is assured, is that based upon what your experience as a mighty fine engineer tells you in your own interpretation of 60204 or is it based upon some published official guidance that I've yet to locate? Not that I'm doubting your opinion of course!

I'm still slightly cautious because there does seem to be a minority who forbid the use of twin ferrules in the land of 60204 and I don't want to rely upon the occasional twin ferrule only to have a splendid bespoke machine rejected by an over-zealous compliance officer at a client's premises. If only there was some sort of official clarification which I could wheel out in such an eventuality. It strikes me that there is justifiable reason for the definition of "conductor" (as used in the 60204 clause relating to the 1 wire/2 wire issue) in the preamble of 60204 to be extended to refer to twin ferrules.

So much discussion about the humble ferrule - who'd have guessed....