Sorry, brain fog….existing three phase final circuit protected by a 63a type c mcb. Zs is well in excess of the tabulated value. Is it acceptable practice to put a BS88 fuse after the mcb (next to the db) to increase the maximum permitted Zs?
Sorry, brain fog….existing three phase final circuit protected by a 63a type c mcb. Zs is well in excess of the tabulated value. Is it acceptable practice to put a BS88 fuse after the mcb (next to the db) to increase the maximum permitted Zs?
