Curious white twin and earth

[SUNRAY]

You don't put ferrules on solid core cables.....do you?

You do when the consultants spec state 'All' conductors.


All to often the consultants spec states 'All'.

 

[SUNRAY]

7 strands class 2.

Are you stating 7 strand wires are class 2?

 

[Ragnar_AT]

Are you stating 7 strand wires are class 2?

The Wiki article on IEC 60228 seems to indicate they are. Flex would be class 5.

 

[pete01]

Are you stating 7 strand wires are class 2?

Apparently so.

 

[SUNRAY]

I've been fitting ferrules on 7 strand wiring for decades.

 

[EFLImpudence]

I am just wondering how anyone who cannot get all the strands into a terminal will manage to get them all into a ferrule.

 

[pete01]

I've been fitting ferrules on 7 strand wiring for decades.

tut tut, you'll have to spend the next few decades going back on yourself.

Just kidding its even advised to do it on the compex course.

 

[plugwash]

Are you stating 7 strand wires are class 2?

Yup, conductor classes (not to be confused with appliance classes)

1. Solid
2. Coarse strands (conduit singles and similar)
5. Fine strands (flex, "trirated" and similar)
6. Extra fine strands (some test leads and welding cables).

(noone seems to know what happened to 3 and 4, I'm guessing the IEC standards inherited the numbers from some prior standard that had more classes)

 

[Ragnar_AT]

There‘s also the standard in which the cable designations are defined in, like H05VV-F. That one differentiates between fine stranded conductors (-F) and fine stranded conductors for fixed installations (-K). To the untrained eye H05V-F (individual conductors from ordinary flex) and H05V-K look exactly identical.