Wow this is really wierd cos my mate kev fits electricity meters for British gas. They must also be owned by national grid then too?
I'm sure they were talking on the radio today about British has being owned by centrica?
And also westie doesn't know who he's worked for for 40 years?
It's almost as if you're wrong or something.
I have been careful from the onset when I first answered OP's question, since no one else had answered his question for nearly 3 hours, I thought I would answer it to the best of my ability, and hence I chose the word "I believe" which means that i could be wrong, since I deal with lots of problems with energy companies, from time to time, I rent and look after other people's houses, and know often there isn't a clear cut answer, overall, it does not matter, like the video said Transco no longer exists, but you don't get headlines in the newspapers that Transco is none other than National Grid! but I guess people actually working in the industry would know the inside information that we the public rarely get to know, hence I believed that National grid are responsible for electric meters, well they once were, under the name LEB, who not only billed but also installed meters, they were owned by NG i believe.
However, I am not here to say I am right, but to say I am utterly wrong is incorrect, as there had been real confusion throughout since the privatisation of energy, In one instance a National Grid wrote to me that they needed to replace a gas meter at a certain premises i looked after, and their fitter came and put a new meter and apologised that as he was not carrying a longer length of pipe so the new meter had to be installed at a lower height than the previous one, and left it dangling face height in a passage, which i had to ask them to move it up as people kept bumping into it.
Any way, the important points OP asked was the dangers of lose connections in the meter tails. Who owns the meter or who is responsible for lose connections and failure of his electrical appliances is his electricity supplier, who ever he is, they are the first port of call, and ultimately they are held responsible, not the electricity generator board, or the National Grid, who transport electricity and if they refuse owning responsibility, ultimately it falls on their parent company who may or may not be NG.
any ways I am now off to ebay to bid for a gas metyer before they get sold out!