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breaking

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  1. Top Cat

    Breaking capacity of a 3871 breaker?

    Anyone know what the kA of this breaker is? Also on same board i had a 30mA RCD main switch that had a BS number of 4293. Can't find that number should i just put down 61008?
  2. D

    MCB Breaking Capacity

    With regards to to BS7671, can anyone tell me where I might find values for the Breaking Capacities of Type B MCB's. I just can't find the answer to this one? :-(
  3. D Skelton

    100A breaker?

    So a conversation with a fellow spark brought into question what exactly are main switches? Is a 100A main switch a 100A double pole MCB or does the 100A mean its breaking capacity? I'm sure it's the former but I'm beginning to question my own knowledge as he thought differently. Also, with...
  4. M

    rewirable fuse type

    Hope someone can help. How can i tell what type of 3036 fuse i am looking at and what is the breaking capacity. This is to put on a periodic form. Thanks
  5. M

    how can i take breaker ics rating?

    hi i wanna know that what is the abbreviation of ics and icu? and how can i take my ics rating of the breaker? is there any formula or calcualtion? and i wanna know short circuit rating ics of single pole and tripple breaker ? how can i take it?
  6. telectrix

    breaking capacity 3036

    as the title, i was asked the question " what is the kA breaking capacity of a 3036 fuse" i couldn't answer. only a guess of around 6 -10kA. anyone know?
  7. S

    Fit review - Breaking News

    Solar panel subsidy to be slashed - FT.com Looks like the announcement could be tomorrow - can hardly wait :angry_smile:
  8. W

    Prospecctive Fault Current purpose....

    Hi Can someone explain the reason for testing the PFC and what it confirms? And what is the reson the value is doubled for 3-phase? Thanks
  9. T

    breaking light bulb trips other circuits

    hi all, any idea why a breaking light bulb would trip other circuits mcbs? system is TT, entire installation in an mk cu under one 80A 30ma RCD bonding etc is correct and connected, pfc, psc etc all ok. everything looks normal except: all the circuits which tripped at the same time as the light...
  10. E

    Breaking the golden handshakes

    Today I've been advertising myself to local estate agents. Unfortunately they are all useing the same spark and seem to be very loyal to him. Although the feedback is sometimes he is too busy and doesn't show up. Even after that comment the estate agents still seem to be very loyal to him...
  11. W

    Breaking down three phase

    Hey guys, Can someone help me get my head around breaking three phase down into three seperate circuits please. If i wanted to break down a three phase N + E SWA for example, into three seperate 20amp commando radials say, how would i do this when i only have one N and one E but three circuits?
  12. D

    Ermmm...!!! Breaking in...

    going to a job tomorrow where the landlord has basically told tenants be in or we breaking in!! should be fun and games i think.... any PPE that you chaps think i might need..!
  13. J

    Breaking capacity for BS 3371 ?

    Hi all Can anybody tell me the breaking capacity of a BS 3371 circuit breaker? On the side of the breaker where it mentions breaking capacity it just says 'M9' , which I guess is some kind of reference. Did a quick google search but to no avail. Cheers John
  14. J

    Sort circuit capacity bs1362

    does aby one know the Sort circuit capacity of a bs1362 fuse also the ka of the bs3036 cartridge fuse cheers
  15. W

    NICEIC from dI to Approved and breaking in to the commercial market

    Hi every1 my first post on this forum please go easy. I have been workin for myself for around 5 years now as a sole trader, 11 years exp alltogether, JIB approved/nic DI, i mostly do domestic now about 85% - 15% commercial. Now i feel i am established enough and have a good customer base...
  16. S

    Fit review - Breaking News

    Confirming fears that have been mounting in recent weeks, Energy Secretary Chris Huhne has launched a comprehensive review of the UK feed-in tariff (FiT) scheme, following claims that large-scale solar farms could ‘soak up money’ which was reportedly intended to help homes, communities and small...
  17. K

    Breaking into a ringmain.

    I am going to be breaking into a ringmain circuit to install a fused spur, which will all be surface mounted in trunking. my question is will i need to change the mcb to rcbo as im changing the circuit slightly even though im NOT adding any sockets just a fuse spur, or will i get away with...
  18. O

    recoomendation code for breaking capacity

    what is the recommendation code for a mcb rated at 1KA and the pfc on the installation is 1.8 ka
  19. B

    why Pfc is 16kA in Installation Cert?

    In the Installation Certificate, the Pfc of supply is 16kA, but on the top of testing results, the Pfc normally is 1 or 2kA, normally less than 6kA. Why the 2 numbers are so different? cheers
  20. J

    do i HAVE to be registered with a goverment body ? (niceic)

    hi all just wondering is it a legal requirement as an electrician to be registered with a goverment body such as the niceic : for example if i had the city and guilds 17th edition wiring regs certificate and public liabilities insurance, and went to a customers house and changed a consumer...

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