my friend has just purchased a commercial building i had a quick peek at the electrics. i was surprised to find 3 consumer units, two were 1361 cartridge fuses the other was 3036 board these were fed from a db with old mem porcelain fuses with fuse wire linked across them. my first question, is it acceptable to use a 3036 board in commercial premises and i noticed that two banks of 10 fluroscent light were ran from a 15a 3036 fuse had should they not be on a 5 or this because of the surge when switching them on. cheers (please note still learning just in my third year)