clever ways of ring final test without removing spur fronts??

[Sparksaflyin]

temporarily connect the boards to a live source and test? job jobbed.

Unfortunately this is not possible and to be fair it’s not exactly standard working procedure is it

 

[Sparksaflyin]

temporarily connect the boards to a live source and test? job jobbed.

Unfortunately this is not possible and to be fair it’s not exactly standard working procedure is it

 

[Deleted member 26818]

I have worked a site where they used a 110V to 230V transformer for testing.
First time I ever saw a blue transformer.

 

[Sparksaflyin]

See where your coming from but this is not a site, it’s a factory floor

 

[Icarus]

Can you get to the live terminal by popping the fuse out and sticking a prove in to the fuse holder? And the earth via a faceplate screw? That would give you R1 R2. The resistance might be slightly higher through the screw though so you would have to compare.

EDIT: Actually, thinking about it, im not sure if the fuse holder stops you accessing the actual live part behind

I heard a tip before that you can jam a small screwdriver (2.5mm slotted) into the fuse carrier and get a reading off of the shaft. Never tried it however. I suppose its success largely depends on the design of the FCU.