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circuit-breaker allegedly "getting more sensitive"

Former Community Member
Former Community Member
OK, usual caravan park issues with more pitches than incoming supply, so client has acknowledged this by installing 10 A circuit-breakers for each 16 A outlet. With 24 pitches on a presumed 80 A single-phase cut-out, he has got away with it..... so far, but he doesn't close for winter....


He has a few regulars that complain about the 10 A circuit-breaker being too sensitive so client believes them and has fitted new 10 A circuit-breakers ready for this weekend.


Considering that a 10 A circuit-breaker will run at 11.3 A continuously and 16 A for about 10 minutes, I'm more inclined to think that the "shed puller's" use of the 2 kW built in heater, 2 kW supplementary fan heater, fridge and domestic 3 kW kettle plus entertainment equipment are more likely....


But, has anyone carried out any tests on circuit-breakers to prove/disprove the alleged reduced rating? Or links to any such reports?


Regards


BOD
Parents
  • 0
    Protective Devices

    Each socket-outlet must be protected individually against overcurrent by a miniature circuit- breaker (MCB) complying with BS EN 60898. The normal current rating for each MCB is 16A, as on Club sites; to reduce the cost of the installation, it is possible to limit the current available at each socket-outlet by fitting an MCB of 10A or 6A rating, in which case the available current must be clearly indicated to members, for example by a permanent and legible notice. If less than a 16A supply is to be made available, the Member should be informed at the time of booking.

    The Caravan Club


    I had left that page open on my Ipad for the last week without getting around to commenting on it.


    It seems quite likely that a MCB that trips regularly due to overloading will start to trip more easily as the mechanism inside it frees up.


    Andy Betteridge 

Reply
  • 0
    Protective Devices

    Each socket-outlet must be protected individually against overcurrent by a miniature circuit- breaker (MCB) complying with BS EN 60898. The normal current rating for each MCB is 16A, as on Club sites; to reduce the cost of the installation, it is possible to limit the current available at each socket-outlet by fitting an MCB of 10A or 6A rating, in which case the available current must be clearly indicated to members, for example by a permanent and legible notice. If less than a 16A supply is to be made available, the Member should be informed at the time of booking.

    The Caravan Club


    I had left that page open on my Ipad for the last week without getting around to commenting on it.


    It seems quite likely that a MCB that trips regularly due to overloading will start to trip more easily as the mechanism inside it frees up.


    Andy Betteridge 

Children
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