capacity

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  1. C

    Short Circuit Capacity ratings of Various BS Fuses / breakers

    Does anyone have a definitive list for the KA ratings of the various BS fuses/breakers please. Thanks in Advance
    • chiplard
    • Thread
    • breaker breakers capacity circuit fuse fuses ratings short short circuit various
    • Replies: 2
    • Forum: Australia
  2. L

    Short Circuit Capacity

    Hi Guys Any advice would be much appreciated! I have tested a property that has a PFC greater than the short circuit capacity of the mcb's protecting the final circuits, the PFC is 7.9KA and the 60898 mcb's 6KA. The property is protected at origin with a 1361 type b fuse 16.5KA. Under the...
  3. J

    SWA current capacity.

    what is the current carrying capacity for 16mm 3 core swa with>100mm thermal insulation?b2 7671 0nly gives tables for ref method c d and e.
  4. J

    sub mains

    hey guys, i have to wire 17 new bungalows soon,the DNO meter is in a cupboard about 10 m from the consumer unit. Normally i would just have a 16mm swa suub main with an 80a fuse. trouble is the insulation covering it will be >100mm.reference method 101.my question is what is the current...
  5. R

    Final Circuit conductor sizes in OSG 8.2

    Referring to pages 158-159 in the OSG Table 8A Type, OPD(A) A1 Ring, 30 or 32 .......etc 8.2.3 Conductor size ....The as-installed current-carrying capacity Iz so calculated must not be less than: 20 A for ring circuit A1 Am I reading/interpreting this correctly when I say...
  6. M

    bs88 type 2 fuse

    can anyone tell us the short circuit capacity rating of a bs88 type 2 fuse. suppliers fuse was recorded on a old test form NAPIT but dont state the short circuit capcity in Ka. another quick question when calculating prospective fault current can the formular be used on all types of...
    • mcm
    • Thread
    • bs1361 bs88 capacity domestic fuse guide type
    • Replies: 10
    • Forum: Australia
  7. E

    Cable current capacity

    Hi guys currently up inside a rood void of an old brewery and don't have regs to hand. Does anyone know the maximum current carrying capacity for 4mm 6mm and 10mm twin and earth cable clipped directly?
    • eskimo39
    • Thread
    • cable capacity current
    • Replies: 3
    • Forum: Australia
  8. S

    Can anyone recommend a link or website where i can find short circuit capacity table

    Can anyone recommend a link or website where i can find short circuit capacity table for type C MCB's
  9. S

    Current carrying capacity and volt drop calc

    Hey all. Hope that this post is relevant to this section. Got a call this morning from my colleague who is on a large industrial job at the mo. He has asked me to calculate and come up with a suitable cable size that is forming part of a distribution circuit. I also need a suitable fuse size...
  10. W

    Main Fuse Confused ?

    Hi just writing a cert and got to the main fuse. The main fuse has written on it isco, series 3 ? but does not say which type or its short circuit capacity, anyone any ideas ? also got my assesment tomo. Im sound with testing, just maybe with if he throws me with a problem question, if...
  11. 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
  12. 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
  13. R

    Breaking capacity

    With respect to PSCC what is meant by the breaking capacity of the protective device? what figure are they talking about
  14. W

    rewireable fuse details

    Hi can anyone tell me where in regs it tells you about rewireable fuses. doing a periodic and got 6 db's that are rewireable fuses ,whats breaking capacity etc of wire?
  15. S

    Quick question about trunking capacity..

    Hi folks, just a quick question if you don't mind. What would be the smallest size of mini trunking which could comfortably accomodate: one 2.5mm T+E cable: 16X10 or 16x16? two 2.5mm T+E cables: 16X16 or 16X25? I guess I need to take the bend radius into account as the run will involve 4...
    • Smugley
    • Thread
    • capacity don't guess question quick trunking
    • Replies: 3
    • Forum: Australia
  16. K

    Short circuit capacity???????

    How do you work out the overcurrent devices short circuit capacity in KA, i thought it was just written on it, if you can't find it what do you do then? HELP!!!!!!!!!
    • KFORDHUNTER
    • Thread
    • canada capacity circuit devices don't overcurrent short short circuit switch
    • Replies: 16
    • Forum: Electrician Talk | All Countries

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