capacity | Page 7

capacity

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  1. ringer

    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...
  2. 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...
  3. 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?
  4. 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
  5. 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...
  6. 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...
  7. 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
  8. 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
  9. R

    Breaking capacity

    With respect to PSCC what is meant by the breaking capacity of the protective device? what figure are they talking about
  10. 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?
  11. 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...
  12. 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!!!!!!!!!

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