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  1. L

    NICEIC Certification Scheme Tony Cable & Maximum Demand on niceic video

    Watched the NICEIC's periodic inspection reporting dvd the other night, good overall and helpful but one thing I just cant agree with. I'm sure Tony Cable is a good electrician but when it came to the section on Maximum Demand he measured it with a clampmeter around the Line Tail and shouted "...
  2. S

    RING AMPAGE xl AUTOCALC for maximum estimated ampage of skt wire

    Anybody got an EXCEL spreadsheet to calculate the est. approx AMPAGE of the RING CIRCUIT socket wire from just the following?: ~ SKT WIRE lengths from skt to skt, and last skt to fusebox ~ MAXIMUM AMPAGE of each skt Eg: Skt A to B = 10M's Skt B to C = 5M's Skt C to D = 3M's Skt D to A =...
    • srands
    • Thread
    • aus maximum ring wire
    • Replies: 20
    • Forum: Australia
  3. V

    maximum demand 2011 for nic eic inspections

    hi guys with my yearly inspection comming up i have a job where ive installed a cooker circuit. 15 way cpn split c/u is the existing db in the house (small three bed only). it has 6 ring circuits 2 radials and 6 lighting circuits. (because it was 2 flats previously) my question is...
    • vitoboy
    • Thread
    • aus circuit demand eic house inspection inspections maximum other
    • Replies: 5
    • Forum: Australia
  4. S

    maximum demand

    Hi there doin project and stuck on one of the questions help would be appreciated. For maximum demand applying diversity for this Twelve 0.5kw 3 phase induction motors for car ramps each having a power factor of 0.8. efficiency 95%
  5. T

    Maximum demand

    Maximum demand on a E.I.Certificate New circuit added for sockets. Do I put the max demand for the new circuit installed? or all circuits? thanks Tom
  6. P

    Maximum demand

    When calculating the maximum demand say for a 3 bedroom house if you cannot use diversity for a 9.5 KW shower how can you keep the total with all other circuits to under 100 Amps? Am I misunderstanding something?
    • peteelecs
    • Thread
    • aus demand maximum
    • Replies: 5
    • Forum: Australia
  7. M

    Maximum demand when installing PV

    Hey guys. Just wondering why it's necessary to calculate maximum demand of the installation when filling out electrical installation certificates when installing a PV system? Because your inverter isn't really an additional load on the supply because it's feeding power in? Thanks
  8. M

    maximum demand and diversity

    hi, Ive recently fitted a new CU to my house ready for assesment (Elecsa 14th dec). Just wanted to know if I had worked out MD + D correctly cheers. Hi integrity dual RCD board. LAYOUT AS FOLLOWS. 100A MAIN INCOMER 6A RCBO SMOKE ALARM MINUS 40% = 2.4A 6A RCBO SECURITY...
  9. W

    Maximum demand

    hi,i have completed a consumer change but feel that the total demand as calculated is greater than supplier fuse (60AMP).the property has had numerous extentions.what would you put on eic and would you make a note of concerns in existing installation and recomend upgrade, any comments...
  10. S

    Rcd test

    When doing the rcd test on sockets. Do you repeat the test at every socket in the ring or just at the middle of the ring, and within what time does the rcd have to trip at x1 its tripping current 200ms or 300ms? Thanks
  11. J

    maximum demand for sse

    Hi all, a little help please.........I have a job where a building is being converted into 16 flats so sse have been to site and we have decided that it needs a 95 mm wavecon supply with 2 ryfield blocks for 17 new supplies. Now they have asked for a maximum demand for the flats which are all 2...
  12. M

    EIC maximum demand

    could any one tell me what rules they follow when filling in the max demand box on the EIC , do you work it out then add diversity ( time consuming ) or switch on as much as possible and use clamp meter ? a spark told me recently he enters the rating of the service fuse , another once told use...
  13. P

    Maximum permitted Zs

    Looking through the BRB and OSG regarding Max Zs (table 41.3), would these figures now only be applicable for circuits that do not require an RCD? Table 41.5 gives max Zs for 30mA RCD as being 1667 ohms :confused:
  14. T

    Maximum cable length

    Does anyone know the maximum cable length that can be used for a ring circuit using 2.5 t+e with a 32amp breaker?
    • ted26
    • Thread
    • aus cable length maximum
    • Replies: 25
    • Forum: Australia
  15. J

    meter tails maximum length

    Hello, Relating to a house/domestic installation, is there a maximum length for 25mm meter tails? I have got it into my head (old age creeping in!) that it is a metre - need confirmation/advice about this from any kind souls watching. Thank you, from member's first posting.:o
    • jdslimma
    • Thread
    • aus length maximum meter meter tails tails
    • Replies: 10
    • Forum: Australia
  16. A

    maximum demand

    Hi all can anyone help me get my max D calculations down to under a 100a not sure if ive compltely got the wrong end of the stick with the maths any ideas would be greatley welcomed. Ive attached jpeg below, please double click on image to view.
    • ace design
    • Thread
    • aus demand maximum
    • Replies: 16
    • Forum: Australia
  17. O

    suppliers cut out fuse

    Guys did a consumer unit change over the weekend and hit 2 snags 1. The suppliers cut out fuse has no markings on it ie no BS 88 60 amp instead the unit is black with no markings on it so how to I id it for the cert. The property is a 3 bedroom 1950s flat TNS supply. 2. Maximum demand I...
  18. G

    Maximum demand

    Hi, A while ago I remember somebody mentioning a quick way of working out max demand with out doing it properly and it came out roughly the same as if you work it all out. It was something like add up add the rcb's and divide by 4 or something. Anybody know what I am on about or was is this...
  19. J

    confused

    Hi Guys New guy here can someone advise me what is the maximum earth continuity reading allowable on a lighting circuit which is protected by a 5 amp fuse and has about 100 mts of 1.5mm T&E utilised
    • jim.murdoch3
    • Thread
    • aus confused fuse fuses maximum
    • Replies: 4
    • Forum: Australia
  20. D

    EFL on TN-S with RCD

    I'm doing 30mA & 100mA RCD resting on a TN-S system TN-S earth fault loop impedance max is .8 ohms TT earth fault loop impedance max is 200 ohms Regs state approx 1500 ohms for RCD on TT system What should the maximum Zs be on a TN-S system when testing an RCD?

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