Not exactly crime of the century is it....he probably did a prefectly safe and compliant job just didn't fill out his cert properly. Why would either NICEIC or LABC waste time investigating somebody just because they fill out a cert wrong...who cares...
Out of interest...and this is a genuine question, what would you put in the max demand box? I always put 100amp and have never been pulled on it.
No blanks in the front of the board? Live accessible parts? I'd think thats amongst one of the worst conditions you could leave a job in. I was also worried that the 9 or 10 errors evident on his test cert showed a certain lack of understanding of technical issues. Would you be happy employing a spark who didn't know the difference between a 60898 and a 60947-3?
Not to mention that if he only tests one circuit whilst changing a 10 way consumer unit he is going to finish the job a couple of hours quicker than someone who does the job properly. Therefore he is quite a lot cheaper than a good sparky and will get more work in the area because of this. So it follows that even more crappy work will be done by him and less work will be done by good electricians. We can't price jobs on a level playing field.
Oh, and it was a council grant job so you and me paid for it out of taxes...
It's never occurred to me to enter 100amps in the max demand box simply because it says 100amp on the fuse carrier because,
It's probably not a 100amp fuse in the carrier in my area and
Thats not the current max demand, thats the theoretical maximum current that could be pulled before the fuse blows. (although in reality it will be higher than the fuse rating)
I had a conversation with my ELECSA inspector about it yesterday and although he didn't condone the x0.4 rule of thumb he did allow that it was impractical to spend hours calculating it accurately.
What do you write when the carrier is unmarked? (mostly all unmarked in my area)
Surely if this was acceptable then they may as well have one combined box for max demand and supply overcurrent protective device?
Anyway, as far as the distributors are concerned, whatever the load, if the fuse hasn't blown the max demand is ok and they/you don't have to do anything. (recent enquiry from a hairdressers with 4x 8.5Kw showers on 100amp fuse)
It's interesting to know different takes on filling out certs correctly and if putting the main fuse rating is acceptable I'm all for it as it will speed jobs up.