I know how you feel spoon......lucien regularly pips me to an answerI'll try and answer this for you. People who have a lot more experience then in this can correct me if I'm wrong.
Bugger..... @Vortigern beat me to it...
Yeh, it's called an electrician.If there isn’t a pice of kit out there that can be placed against the outer sheath of a 400v swa cable that would show it is live
Well that certainly can't be me as I am not that flexible at my age.Sadly the ones who this response is targeted at spend so much time admiring their own anuses they won’t recognise who they are
Reply to the thread, titled "Identifying live cables" which is posted in Commercial Electrical Advice on Electricians Forums.