Fuses

BS 1362 plug fuses are in effect T rated anyway - there is no quick blow equivalent. If your CRT switch on surge will blow a 5A fuse, what other choice did you have (given that anything other than 3, 5, & 13A was not readily available at the time)

Used to work years ago in a TV repair shop mainly Phillips G6, G9 and G11 chassis sets all CRT ones never remembered having to put large fuses in them had to wire on the mains plugs and could swear blind we only used 5 amp ones!

They would and could blow their fuses internal ones triacs and the like playing up..

AFAICR the degauss coils had some sort of limiter to stop a large surge and then they had another device to get them to fade down the magnetic field to de-mag the tube, don't ever remember them playing up either!..

I was making a general point, but perhaps for a TV it would in most cases be closer to say you need 5A but looking at the ratings plate and not understanding issues like inrush, my opt to fit 3A then have problems with seemingly random blows.

Some seemed to just place a PTC thermistor in series with the degauss coils such that as it heats up is reduces the current through the coils. A fairly crude solution since it then sits there running very hot most of the time the set is on.

Coows scratching on a rural wooden post carrying HV 3-phase used to be a common live-to-live fault.

I think it still is on some German cars

That sounds like it could be bad news for the cow!

Depends on what it is made of?

and I remember people sticking the green wire into the fuseholder in the plug. Yep, colourblind.

I'm sorry that you decided to waste everyone's time over what I thought was obvious.

NT

NT

NT

I guess fault current is a well known description in current wiring standards. So there has been no waste of time for anyone interested in current standards and current terms.

If you're a Luddite and live in the past, then I can see your point of view. I suppose you also think kinky means fashionable and gay means happy?

yeah... roast beef!

Probably not - cows (and other large quadrupeds) are particularly sensitive to electric shock due to the ease with which they can get a potential gradient applied across their legs.

(and the post did say HV 3-phase - so I am assuming 11kV or similar)

My 25" G6 required a 13 amp plug fuse. Smaller didn't last long. It may have been one of the odd sizes just below 13 amp would have worked, but life's too short to play around with such things.

Yep

there has

Ah, make it up & be silly time.

NT

Yeahbbut as John Rumm observed futher up the thread, the fuses under discussion here are effectively slow-blow types anyway, so you *can* go by the rating plate. I dunno what the (presumably substantial) inductance of degaussing coils is, but it should provide enough to limit the inrush current without the need for any thermistors and whatnot. Even at 50Hz in all probability - but don't quote me on that.

I assumed they were the same apart from the thickness of the fuse wire. Are you saying 2 amp fuses are more likely to be counterfeit products than 13 amp fuses? Why would anyone counterfeit a 2 amp fuse when they could probably sell far more 13 amp fuses?

The cows were unharmed, but they managed to rock the pole and make the wires swing into each other. Maybe in the 50's and 60's there was less spacing between the phases that they have now.