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Cartridge Fuses in Domestic Fuse Boxes.

How many domestic fuse boxes have you come across within the last year that have B.S. 1361 cartridge fuses in them? I came across one today. You know the ones. The 5 Amp cartridge fuse is just a little shorter than a 5 Amp. 13 Amp.  plug fuse. The 15 Amp fuse is coloured blue, 20 Amp yellow and 30 Amp red. The shower fuse may have been 35/40 or 45 Amp. I seem to remember that the 45 Amp carrier was orange. I have an old Wylex carrier here that has a brown cartridge fuse carrier and an orange base. I was impressed years ago with a cartridge fuse maker's video advert. It said that when a fuse blows you fit a new unused cartridge fuse that affords great protection and reliability, unlike with a circuit breaker that after time and many operations may become unreliable. That impressed me at the time.


Z.
Parents

  • mapj1:

    MCBs must have been coming in the 1990 ...




    Mine at home date from circa 1982, but they are 25 mm wide.


    What troubles me with MCBs is that we don't test them. Granted we didn't test the old wire fuses, but their action was based upon the physical characteristics of the wire. Why do we not test MCBs?

Reply

  • mapj1:

    MCBs must have been coming in the 1990 ...




    Mine at home date from circa 1982, but they are 25 mm wide.


    What troubles me with MCBs is that we don't test them. Granted we didn't test the old wire fuses, but their action was based upon the physical characteristics of the wire. Why do we not test MCBs?

Children
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