Hi im just after a bit of advice just in case im missing anything not had a lot to do with busbars. Basically iv got a 100a 3 phase supply 25mm tails it gose to a 60a isolator with rewirable fuses which is next to the meter. Then to a 100a busbar feeding 3 isolators which is next to the busbar. I want to up grade the rewirable fused isolator to a 100a with bs88 the volt drop to the other isolators is very low as they are next to the busbar. Am i missing anything cheers