sizes | Page 4

sizes

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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. B

    OLD SWA Cabling and earth sizes

    Hi, Is any body aware when LSOH SWA cable to BS6724 first introduced to the UK? Also, is anybody aware of the copper sizes that were available for the bare copper conductors used to bond installations in the circa 1960's? I am coding a PIR report and for my own knowledge I would like to know...
  3. S

    Module sizes and makes

    What size and make of modules are people generally using. using a 180w or a 230w makes a big difference to the total KWp. I'm pricing my first small job and i have space for 6 modules. I'm trying to get as high a KWp as possible for the available space. i've been looking at Schuco modules...
  4. E

    Identifying Washer Sizes

    Hi does anyone know how I identify a washer size?? A few years ago I got given about 500 washers and they have been brilliant for using when hanging large CU's etc. I have had a look online but am confused by all types etc The washer is around the same size of a 2p piece and the hole fits a...
  5. S

    Tail Sizes on EIC

    Hi, I have recently replaced a consumer unit on a TT earthing arrangement. I went down the local Building control route, no problem so far. Sent in the completed certificate, but got it declined with this stated on the paperwork. "TAIL SIZES NOT GIVEN THEREFORE UNABLE TO DETERMINE IF EARTH...
  6. H

    SWA sizes confused

    hi guys and girls sorry to have to ask this and i know when i get the answer i will kick myself but i am getting confused over SWA cable sizes. i need to upgrade a garage and am looking to put in 6mm instead of the current 2.5 and want to use swa. i have been able to fined 6mm swa which i...
  7. J

    Screwdriver sizes.... which are good, which are a waste of space??

    There has been lots of talk of which brand is best, but I just wondered what are the actual sizes that people find most usefull day in day out. Slotted in 3mm and 3.5mm..... are they both necessary? Half a mm seems a very small difference. Are there any that people should avoid completely...
  8. Traineenoob

    sps sizes??

    Hi guys where in the osg can i find k values?? Ive found them in the big red book pg 129 but where in the osg are they?? Ive got the 302 tomorrow need to find this. sorry its ment to be cpc not sps :)
  9. A

    Common screw and bolt sizes?

    Hi I am looking to make up a case of screws and one for bolts. Rather than buying a set of all sorts, and having a load of un-needed sizes, I thought I would make one up myself. So what are the common screw and bolt sizes I would need, or is a ready made set going to be fine? Any...
  10. E

    formula for working out ring main cable sizes

    Hi Can anybody remember the formula for working out ring main cable sizes (Cable Capacities). I know we use 32amp MCB with 2 x 2.5mm² but its been so long I cant remember the formula that proves 2.5mm² is capable of carrying a ring main load. Thank you in advance Sorry if this has been...
  11. S

    cable sizes with 12v supply

    been asked to wire some garden lights but customer unsure if to have 12v or 240v.at present there is a 1.5 3c swa available to use that is supplied from c.c.u. if a 12v system is wanted is there any reason not to use this cable to carry supply from 12v transformer, and also is it ok to connect...
  12. P

    under floor heating

    advice please im changing a ccu, the lady is having under floor heating installed and wants me install power points for each room thats having under floor heating. can i spure off the ring in each room or do i have to run a new cecuit. under floor heating is new to me. any advice i would be...
  13. S

    Lighting Circuit - Mixed CPC Sizes!

    Hi All, I am a newbie to the forum so please be gentle! :o Today I have come across a recently rewired house and I noticed that the installing sparky has indicated on the Install Certificate that the lighting circuit is T&E 2 core 1.5mm and CPC 1.5mm. However, I have noticed that in fact...
  14. S

    Armoured cable sizes

    Adding more circuits to an existing outbuilding sub board but unsure of the size of armoured cable currently supplying the sub. Having not done a lot of work with armoured cable I am unsure of the size currently installed and need to acertain if suitable for the additional load. Any tips on best...
  15. Y

    recording cable sizes on certificates

    Where it asks for conductor sizes, do you put down both 2.5 and 1.5 for conductors where a ring main has 1.5 cable after FCUs? Or just 2.5 as that is what the majority of the wiring is in. Thanks.
  16. W

    Switch & Socket Retaining Screw Sizes?

    Backbox Mounting Screw Replacement. I've often come across stripped threads on metal backbox lugs which have been so badly abused, that the normal 3.5mm re-threader is useless because the hole is already too big. The only safe solution (electrically), is a replacement back box. This is time...
  17. C

    Cable sizes & fuse ratings . . . .

    Hi. Hoping that many of you experienced girls and guys out there will be able to help me out. A disagreement regarding cable sizes and fuse ratings. For example : I believe a 2.5mm2 radial ( assuming it is more than 5 metres in length ) should be rated at 16A unless there is convincing...
  18. J

    Old cable sizes

    We are currently carrying out a periodic inspection on a hotel. Some of the cabling within this is imperial sizing. For the purposes of the certificate, what are the equivalent sizes is imperials i.e. what size was generally used for lighting, power etc. The cable is stranded.
  19. J

    earth sizes for SWA run

    hi Wonder if anyone can help, I dont have my regs or OSG on me and need to answer this question today. We need to install a 35mm swa 4 core (3 Phase and N) The length of run is 110m and the earthing arrangment is TN-C-S. My question is, do we need to run a separte CPC and if so what...
  20. L

    Cable sizes / New colours

    Found this today on pir:) Nuff said i think! (this is a socket outlet by the way)

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