Is 1.5mm Low Smoke 3 core Flex thinner than the standard flex?

[Cinquestelle]

My local electrical shop was out of stock of 1.5mm 3 core flex but offered to sell me the normally more expensive low smoke or heat resistant alternative for the same price. I have bought some but it is a lot a thinner than any 1.5mm I have ever used in the past or see in other shops now, its more like 1.00mm flex at around 6.5-7mm in diameter.

My initial thought was that the lighter thinner qualities of the flex might be a characteristic of low smoke or heat resistant varieties but I'm not so sure now. The flex has the following markings on it:

318 3B1,5 LS:OH/LS:OH 300/500 V CE

I googled 3183B 1.5 mm and didn't find any 1.5mm with as thin as the product I've bought. I want to use it to rewire an extension socket that needs to be a little longer. Any reassurance or otherwise really appreciated.

 

[cagedanimal2010]

Wind yer neck in Amp David. It's responses like yours that spoils otherwise excellent sites like this.:73:

A not unreasonable question from somebody who may not know or understand cable specs.

shhhhhh with your bull plop!!! david gives some very helpful responses, 1.5 is 1.5, however you cut it or divide it!!!