Glow plug fuse

[kit]

Lame question time again, sorry. When the ignition is on should there be power either side of the fuse even when the glow plugs are off? And next, a few years back when I had a bit of a nightmare electrical problem an auto electrician wired up a 50 amp blade fuse instead of the original metal strip, however I have just found this has melted slightly, should I try and go back to the old style or do I just need a better quality fuse, thanks

[Oldiebut goodie]

Slightly confusing question! There should be voltage showing either side of the fuse but no power (current) flows until the relay switches it to the glow plugs. I would revert to the original fuse arrangement myself but it depends upon what the electrician has done to fit a blade fuse.

[kit]

I did warn you

I could read voltage either side of the fuse, I think the relay is ok as I checked there was no voltage on the glow plugs once the engine was running, is this normal?

[Oldiebut goodie]

Yep - that's normal.

[kit]

Thanks.