Having just read that article, it looks like it's online to me https://uat-electrical.theiet.org/wiring-matters/years/2021/84-march-2021/

Thanks. 

Odd thing is that I usually access the magazine (and this forum) using my mobile, with all the articles being available apart from that one - there just being a placeholder where it should be saying apologies, there appears to be something wrong with this component. It cannot be rendered at this time. However, I now see that's it's available using a PC, so apologies, that'll teach me to check.

T  

Thanks. 

Odd thing is that I usually access the magazine (and this forum) using my mobile, with all the articles being available apart from that one - there just being a placeholder where it should be saying apologies, there appears to be something wrong with this component. It cannot be rendered at this time. However, I now see that's it's available using a PC, so apologies, that'll teach me to check.

T