It will work - that's the nature of AC.
If the fuse blows because of a fault, the insides of the machine (or possibly the casing) will still be live.
If he switches the machine off, it's possible everything inside will still be live.
He has created a danger and broken the law - he's an ignorant idiot who should not be allowed to go anywhere near electrical work. You can tell him I said so.
If the fuse blows because of a fault, the insides of the machine (or possibly the casing) will still be live.
If he switches the machine off, it's possible everything inside will still be live.
He has created a danger and broken the law - he's an ignorant idiot who should not be allowed to go anywhere near electrical work. You can tell him I said so.