It sounds like limited scope work, BS7671 doesn't cover the DNO side of things. I suppose if you freshen up on the Electricity at work regs, ESQCR, electricity act it wouldn't hurt.
It's limited to the DNO side of things so don't know how much that would help you.
We don't have anything to do with the customers installation anymore and if there is a problem an isolator gets fitted and the customer is told to contact a spark, so you wouldn't gain any trouble shooting experience etc.
On the other hand you would be working with electricity and would gain a knowledge of how electricity works and what not, you should also get a pension and I'd hope a half decent salary.
Although I think mostly my job is quite easy there are lads that work for us that struggle to get their heads around certain setups or struggle with the work load.
It would be good to show your interviewers that you can be smart as it's good to send a well dressed rep to a cust's house (reminds me must have a shave
).
Have good customer relationship skills(I agree with you SECURE some of us couldn't give a flying er duck about customers, but most of us do).
I like to think I do my best to calm a customer down and help them out after they've spoken to some dope in the office, and also have a laugh with them now and again it makes the day seem quicker.
That you can work under pressure, the jobs changed a lot since I started with all the meter operators trying to compete against each other. and the work load is getting worse and worse.
My advise is if you do get the job (which I hope you do) don't rush just to keep up with the lads that have been doing the job years.
ALWAYS do your tests no matter how unimportant you think they are and if you can't remember doing a test do it again.
We have had instances in our company recently with (AFAIK or I hope) new starters leaving wrong polarity's all over the place because they have been rushing trying to earn more money and not doing their tests.
God it's hard explaining what I do LOL
Good luck with your interview.
