Flex used in walls?
- Thread starter justintime2
- Start date
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I have some 1.5 mm² flex here with an external sheath diameter of 9.8 mm, and some 2.5 mm² with an external diameter of 9.7 mm!
Hmm...
Hmm...
It is only relevant to those 'in the know'. The OP clearly didn't have any idea as to how the sizes of cables were measured/quoted, so to just give him, without any comment or explanation, a link to a table relating to T+E cables (with solid cores at the sizes we're talking about) quite probably did little other than confuse him more in relation to stranded flexible cables.
In fact, if you look further down that wiki table than the bit you posted, you'll see that I added a column for the approximate diameter for the 'bundle of strands' for stranded cables. Maybe I should do something similar for flexible cables when I have some moments?
Kind Regards, John
Interesting - 9.8mm is awfully fat for 1.5mm² - is that just 'standard PVC flex', or something more fancy?! AFAIAA, 9.6 - 10.2 mm is pretty typical for 2.5mm² flex.
As I said, in the OP's case, the ~50 strands is also a fairly strong pointer to it probably being 2.5mm².
Kind Regards, John
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It has a table showing what the OD is for something round with a CSA of Xmm². I don't think that is confusing.
I cheated a bit. The 1.5 is rough service rubber, the 2.5 is butyl. Just goes to show the table is only valid for standard PVC.
That sounds like cheating quite a lot!
The table (much of which was of my doing, I have to confess!) to which BAS linked related to T+E, so had nothing to say about the overall OD of flexes.
Kind Regards, John
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