L
LlandrilloSpark
Whoops
Was working in a very small shop fitting downlighters, the shop is next to an equally small outlet of Boots the chemist, Whilst doing the paperwork I needed to find the cut out fuse type and rating, the head was an old crabtree cast iron with a hinged door, the cut out is a rewirable with a porcelain carrier, the head cover was held shut by a screw so thought right i'll just have a quick look to determine the rating, I isolated the installation and then noticed another set of tails AFTER the cut out which led upstairs so i knocked on the door of the upstairs flat and asked if she minded if she flicked her main switch whilst i removed and replaced the fuse to prevent any arcing, she did.
So i went back downstairs and pulled the fuse carefully from the head, had a quick look under torchlight and noted the 60A rating on the paperwork, As i went to replace it there was a good old crack and flash from the head, WTF i thought, About 1 minute later the manager from Boots came in and said "has your power gone off!", turns out the whole of Boots is also on this 60A rewirable and the good old flash was the the current from his shop arcing over the fuse contacts.
A bit red faced i went into boots, isolated the huge big singing and dancing 25 circuit board(on a 60a rewirable
) and then slotted the fuse back in next door before re powering up boots.
Turns out many years ago before conversion it was one big corner shop and the supply arrangement wasn't altered or split, I wonder how the sparks who certified boots logged it?
Was working in a very small shop fitting downlighters, the shop is next to an equally small outlet of Boots the chemist, Whilst doing the paperwork I needed to find the cut out fuse type and rating, the head was an old crabtree cast iron with a hinged door, the cut out is a rewirable with a porcelain carrier, the head cover was held shut by a screw so thought right i'll just have a quick look to determine the rating, I isolated the installation and then noticed another set of tails AFTER the cut out which led upstairs so i knocked on the door of the upstairs flat and asked if she minded if she flicked her main switch whilst i removed and replaced the fuse to prevent any arcing, she did.
So i went back downstairs and pulled the fuse carefully from the head, had a quick look under torchlight and noted the 60A rating on the paperwork, As i went to replace it there was a good old crack and flash from the head, WTF i thought, About 1 minute later the manager from Boots came in and said "has your power gone off!", turns out the whole of Boots is also on this 60A rewirable and the good old flash was the the current from his shop arcing over the fuse contacts.
A bit red faced i went into boots, isolated the huge big singing and dancing 25 circuit board(on a 60a rewirable
) and then slotted the fuse back in next door before re powering up boots.Turns out many years ago before conversion it was one big corner shop and the supply arrangement wasn't altered or split, I wonder how the sparks who certified boots logged it?
