across

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  1. S

    What fuse?

    Doing an install - came across a main cut out with the following markings On the outside - BIGG Stamped on the inside around the fuse head - LISTING RH80 80A Any idea what I'm looking at? The house was built late 60s early 70s according to the owner.
  2. sythai

    Anyone come across this before....?

    Been working on a 1970's flat this week and it's wired in this stuff : Singles and 'sort of' old style plastic semi flexible conduit. The thing is the ring looks like they've only wired the cpc in 1mm !! (Whoops I've posted this in the wrong forum - please could one of the moderators move to...
  3. Rockingit

    Anyone come across the term 'ISA'?

    Hi all, need to take a look at a job where the customer has had another line installed in order to split a property into two, apparently EDF are insisting on the client having an 'ISA', which is a phrase means nothing to me. I'm half guessing that this might be a translation error (customer is...
  4. S

    Dedicated AC circuit?

    Hi We need some advice on the following....... A potential new client has a hefty SWA cable across his field supplying five 6A caravan hook ups. Ideally he would like us to extend it over to his barn (20M) for a 4kWp system therefore avoiding having to install a new cable under ground. I have...
  5. S

    Hair dryers across 400 volts

    Is there a requlation relating to distances between equipment,? im testing a job where there are 4 hair dryers in a changing area all situated along a wall at a distance of about 1 metre from one to the next, all on individual circuits spread across three phases. So im thinking 400 volts between...
  6. L

    What in a house should or could be connected across L-E ?, having issues

    Fella's The last three CU changes I've been to I have picked up L-E and N-E readings of 0.01-0.03 Meg on the pre tests before I quote, there is not enought fault current to blow the 3036's in all three scenarios but enough to trip a 60898, I cant remember this happening before, unless I'm...
    • LlandrilloSpark
    • Thread
    • across connected having house issues
    • Replies: 9
    • Forum: Australia
  7. G

    Ring Circuit R1+R2 readings

    Still a relatively inexperienced so sorry if these seem obvious/dumb questions. I wanted to spur a double socket next to an existing double socket in a bedroom in my own house on the first floor, sounded like a good idea! EDIT: Isolated the circuit 1st!! My first worry. I loosen the socket...
  8. L

    Strange voltages

    Just wondering if anybody can shine a light on thisI'm working on a 50's bungalow, original wiring, the home owner has basically knocked down a lot of Walls in his house and just stuffed, cut out or taped up various switches, sockets and roses he didn't want.My job along with various other...
    • LlandrilloSpark
    • Thread
    • across check circuit strange things voltage voltages volts
    • Replies: 5
    • Forum: Australia
  9. J

    Linking Across... SWITCHES

    (Apologies to Moderators, tried to place this thread in correct forum, but forum was full and not accepting any new threads). When changing light switches, l have noticed (quite a few times) is that a link wire has been used, to carry out a live from one switch to another (2 gang). What l...
    • Jabbajaws
    • Thread
    • across light quite switch switches
    • Replies: 10
    • Forum: Australia
  10. S

    IR test @ 250V across N & E bars?

    If I test as in my title on an old board, what reading should i get that will not start tripping an new Rcd board Steve
    • Stever_777
    • Thread
    • across ir test test
    • Replies: 4
    • Forum: Australia
  11. E

    Need Explanation of Voltage Drop Please...

    The calculations for Voltage drop as described in the IEE Regulations book is shown below: The actual voltage drop is given by: mV x Ib x l 1000 = 7.3 x 37.4 x 24.5 1000 = 6.7 V (well below the maximum of 11.5V) This voltage drop, whilst not causing the kiln to work unsafely...
  12. S

    Evil c50 board, kA rating

    Can any one help? Iv been sent to do some test and inspections and have come across our arch enemy the c50 board!!! It's due to be replaced but it's got to be condemned first. Dose any one know the kA rating of the c50 breakers bs no: 3871, I ask because the customer is requesting all breakers...
  13. J

    Across the line and y-delta connections

    hi, i just want to ask at what Hp rating should i start to use the y-delta connection instead of the across the line connection. the main would be a 3Ph, 50Hz. thanks in advance.
  14. G

    Voltage reading between Line- Earth. Neutral-Earth 240 V AC

    I have been following a thread on another forum in which a guy reported that the neutral bar on a fused board was at times "glowing hot" At other times, when a neutral was disconnected there was a spark. This was on a 240 volt single phase AC supply. He also reported that when measuring...
  15. C

    Volt drop across 24awg cable

    this cable is 7 strand 0.203mm diam for each strand, metal braided screened. What would be the volt drop across 250 foot? Great site!!
  16. A

    Calculating the voltage drop across a PVC insulated cable- 35mm copper conductor

    I am adding a new Air handler panel to a building and its load is 5421KVA. How do I go about getting the the start up current when the phase voltage is 240V? On obtaining the Start up current, now how do I calculate the voltage drop when the cable that I am thinking about using is the 35mm sq...
  17. B

    Can anyone tell me the size of the MEM fuse box

    HI everyone I have a picture of a old MEM fuse box,which i need to know the size of, it is a job I am pricing for and dont know what size consumer unit i can fit in the small space vailable. The job is a long way from me and i dont want to waste half a day just to measure a space
    • baza
    • Thread
    • across anyone box fuse fuse box size space
    • Replies: 1
    • Forum: Australia
  18. B

    Zs reading across RCD

    Hi all with a heathy ZE ..22 on a TN-s system i had a R1+R2 of .40 oh my suprise to find that the Zs was 1.01at the furthest socketrechecked my ZE.22?? rechecked ZE from out going terminals of RCD .60 has any one else found this ps i realise that this reading is fine as RCD protected just...
  19. G

    Sensor, Relay and back EMF - 24VDC??

    Hi, I am using an ifm sensor to detect a product coming down the line in our factory. I have connected this sensor in such a way as to energise a 24VDC Relay. No PLC involved here. It does the job perfectly and I am happy with it. Anyhow, I was just wondering if I should be using a surge...
  20. sythai

    Anyone come across this before....?

    Cement board !! Right pain in the ...... Went to go and first fix kitchen today, thinking it would be nice and easy plasterboard, should have looked a bit harder on my survey.. did give it a tap and sounded ok/plasterboard'ish:rolleyes: Right nightmare to cut out, think the only easy way...
    • sythai
    • Thread
    • across anyone before
    • Replies: 0
    • Forum: Australia

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