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Hi coljack it would be easier to measure the Ze, then the R1+R2 of the sub main and use this Zs as a Zdb for the top board, so you sort of move the Ze along :D whatever you do switch off and prove off,,,otherwise it will be an instant fail.....most examiners will help you along if you are...

hi yep got the bottom panel off.... it has a separate evaporator in the fridge with a panel over it .. the panel has the circ fan in it with a duct scolloped out of it leading to evaporator-duct blocked with ice, therefore no air circ... just defrosting it with a hair dryer now...

cheers for that. there is a panel in the middle of the fridge,full of grills, got that off... the business end is in the bottom, it is frozen fast at the bottom so it must be the fan, just waiting for the thing to thaw!

hi a previous poster could be correct with respect to rodent damage. if i had to guess i would say perhaps a jb lying in a puddle under the floor :shock: eventually i think it will start tripping the rcd irrespective of the mcb been on or not.... hope this helps

hi eebe are you the same eebe who lurks on the IEE forum?

hi secure, dont know how old you are but.... the 5 sec disc is from the 14th edition and earlier.. it was based on "fusing factor" this was 3 for a rewireable fuse 2.4 for a hrc fuse and 1.5 for an oldie mcb also note the draft has scrapped table 41C (alternative method) utilizing cpc...

hi all bearing in mind that with mcbs there is no 0.4 and 5s disconnection times- it will happen instantly with the correct amount of current.. i also note that the 17th edition is removing 5 sec disc all together, apart from "distribution circuits" best wishes alan

hi dunno why but it is mrs part p's addy. have no fear she will forward mails to me and i shall reply to you... does it break rules to say where i work?

hi the tranny will probably be ok.... test l-e and n-e as normal when doing the l-n test open the local switch... the mcb tripping is the inrush on start up (until the magnetism builds up to oppose the current , the supply "sees" the tranny as a "short") you need to fit a c type mcb...

hi when i worked at the leccy board this was a common problem when doing storage heater installs... the mains men came out and stuck another 100A cut out next to the original!( assuming the incomer is of a reasonable size) this then gives you up to 200A and you record the installation as...

hi all thank you for your kind words... we are getting a website sorted out this week and an ebay shop thingy... please do not go via amazon as they stick money on top without our authority :twisted: i dont want to break any rules but if anyone requires the book it is a phone call away...

good evening all.... we have a samsung american style f/f the freezer part is fine but the fridge side is not working.. the display is flashing on the fridge side and the manual says it may be dust. i removed the grill at the back and gave it a good brush and hoover but it is no better.. i...

BAS Will you pop in from time to time?

hi nope busy in office, teaching part time and doing 15 sh1tty flats in congleton.. :( also got an old applemac which is not set up yet (printers dont do microsoft) :? our graphic designer is going to give me a crash course and load the required programs :D cheers alan

mmm books electrical tips and tricks( making off big swa, conduit, trunking etc) pirs 2381 2391 2400 17th edition part p doctor in meantime- lots of changes and implications...

sorry i will lighten up in time-thought you were serious :oops:

hi all right, i get the cant wait bit! :oops: on IEE i am AKA "electricman" now... an argos fitting as you descibe should really go on a box, now wether it does or does not really matter but the fitting and /or lack of box should be recorded as a "departure" as it is a not BSwhatever...

thank you :) i dont get the "cant wait" bit, i am not a contoversial poster...

hi as a ps the 17th edition says more by saying less... 526.5 a connection can be made within ....... (iii) within building material that is non-combustible (iv) an enclosure formed or completed by part of the building structure connectors under the floor anyone? going to lie down...

hi adam you can have the wires come straight out of the wall into the fitting but... according to 526-03-02 (iii) or (iv) or (v) you would have to show compliance that the surrounding material complies with: "glow wire requirements" BS 6458-2.1 or building material 476-4 or...