Blown 30 amp fuse - age?

[bernardgreen]

It might just be that the fuse wire over the years had oxidised and become far thinner copper than 30 amp wire should be

 

[jssm18362]

Perhaps I was too hasty - might have found the culprit. A VHS recorder that hasn't been used for a while as PVR is used now - that was in the circuit connected to TV and appears not to work anymore. The fuse is intact however.

Should have known better than to slander those poor rats!

Cheers, Steve

 

[Space cat]

The fuse is intact however.

What size fuse is it?

 

[jssm18362]

Hi, it's just a 5 amp as expected for that sort of device. Perhaps it's just a coincidence and I thought it might have been the extension board that it is plugged into but that is fused and all the other things plugged in work OK. I haven't used it since I started using the PVR so it might have stopped working at any time.

Steve

 

[Space cat]

So a faulty VCR blows a 30 amp fuse while its own five amp jobby survives? Well I won't say it's completely impossible but I don't believe it. You could open up the defunct VCR and look for signs of a massive burn-out that would lend some credence to the ides but I still think the fault lies elsewhere.

PS: Just a thought. Is there any chance that the old fuse had the wrong size wire in it?

 

[jssm18362]

So a faulty VCR blows a 30 amp fuse while its own five amp jobby survives? Well I won't say it's completely impossible but I don't believe it. You could open up the defunct VCR and look for signs of a massive burn-out that would lend some credence to the ides but I still think the fault lies elsewhere.

PS: Just a thought. Is there any chance that the old fuse had the wrong size wire in it?

That was implied in my post that how could the VCR have caused it when two lower rated fuses survived. I still think it is either age or a rat.

Steve

 

[EFLImpudence]

Did the fuse (assuming 3036) 'blow' in the normal place i.e. the centre or could the screw have been loose leading to overheating and it just melted.

 

[jssm18362]

It was an old ceramic type with asbestos in the middle and the screws holding the wire were both tight. It's a bit strange since 2.0 am has to be when the lowest load is likely to be experienced.