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1)Have the old ceramic fuses been replaced with circuit breakers?*

*Ceramic fuses are not to current standards.

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2) Do you have a safety switch for every light & power circuit? (or 1 main RCD protecting every light + power circuit)

Note: RCD = Residual Current device = Safety switch.

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3) Is your main switch on overload type circuit breaker?

(Most switch boards before early 2000 have just an isolation switch as their main switch)

More examples of switchboards that need upgrading

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  • Old fuses and plug in circuit breakers can cause hat joints and burnt cables
  • Old fuses and plug in circuit breakers can cause hat joints and burnt cables

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  • Old 80A main switch isolating switch style not the new overload style. This one needs upgrading because it does not provide any overload protection of the main
  • 90’s main safety switch on an asbestos panel. Still has those dodgy old fuses and plug in circuit breakers.


This is what an up to date switchboard looks like complying with the latest safety standards

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