Page 2 of 3 FirstFirst 123 LastLast
Results 16 to 30 of 34
  1. #16
    Join Date
    Jan 2014
    Location
    Sydney Upper North Shore
    Posts
    4,464

    Default

    First minor hiccup. I'm serviced by Ausgrid and apparently in Sept 2016 they downgraded the maximum available single phase service fuse to 80A.

  2. # ADS
    Google Adsense Advertisement
    Join Date
    Always
    Location
    Advertising world
    Posts
    Many





     
  3. #17
    Join Date
    Jun 2005
    Location
    Helensburgh
    Posts
    7,696

    Default

    Quote Originally Posted by Lappa View Post
    First minor hiccup. I'm serviced by Ausgrid and apparently in Sept 2016 they downgraded the maximum available single phase service fuse to 80A.
    For new installations?
    CHRIS

  4. #18
    Join Date
    Jan 2014
    Location
    Sydney Upper North Shore
    Posts
    4,464

    Default

    Chris. I've sent an email to Ausgrid for clarification but the reply didn't answer the questions so I'll phone them. The electrician today said he can only install up to 80A even with a new meter - my old one is 60A. It looks like a NSW Govt rules update to all providers. They still talk of a 100A service fuse but they now have a Meter protection device which is 80A. They can be combined in one but that unit is limited to 80A or they can be in series, 100A first then 80A to the meter or each meter if multiple meters. I'm reasonably confident it's for all new installations but not sure if it applies to existing installations that have work done after Sept 2016.
    Hopefully Ausgrid will clarify tomorrow. Their technical section only takes phone calls to 11am.

    additional info - found this

    http://www.resourcesandenergy.nsw.go...nections/rules
    Last edited by Lappa; 13th February 2017 at 09:53 PM. Reason: extra info

  5. #19
    Join Date
    Jan 2014
    Location
    Sydney Upper North Shore
    Posts
    4,464

    Default

    Reply from Ausgrid confirms 80A maximum fuse.

    When asked what was the maximum current for a single phase residential the basic answer was

    " The maximum rating of a meter protection fuse is 80 Amps under the new NSW Service & Installation Rules,"

    plus references to existing components, neutral links, earth stakes etc. coming into play.

  6. #20
    Join Date
    Jan 2014
    Location
    Sydney Upper North Shore
    Posts
    4,464

    Default Quotes in



    As as I suspected, whole main board and meter needs replacement. In its original position, it's too high to meet current regulations. Moving it down will interfere with the front screen door so it has to be moved. Concensus is to move it to the side of the house - approx 4 metres. Old power points (5) in the old part of the house have to be rewired to meet current regs. Existing connection to shed to be placed on its own 20A circuit rather than piggy backing off existing circuit as a temporary measure until the sub board circuit is installled.

    No change out of 4 big ones.

    Sub board and circuit will have to wait

  7. #21
    Join Date
    Feb 2006
    Location
    Perth
    Posts
    27,756

    Default

    Quote Originally Posted by Lappa View Post


    As as I suspected, whole main board and meter needs replacement. In its original position, it's too high to meet current regulations. Moving it down will interfere with the front screen door so it has to be moved. Concensus is to move it to the side of the house - approx 4 metres. Old power points (5) in the old part of the house have to be rewired to meet current regs. Existing connection to shed to be placed on its own 20A circuit rather than piggy backing off existing circuit as a temporary measure until the sub board circuit is installled.

    No change out of 4 big ones.

    Sub board and circuit will have to wait
    oh dear, sorry to hear that.

  8. #22
    Join Date
    Jan 2014
    Location
    Sydney Upper North Shore
    Posts
    4,464

    Default Stage 1

    Two guys, 7 hours and I went from this


    IMG_0525.jpg

    to this

    IMG_0561.jpg and this IMG_0562.jpg


    plus all the old rubber and cloth wiring replaced.


    Saving up now for the sub board

  9. #23
    Join Date
    Sep 2014
    Location
    Australia
    Posts
    660

    Default

    Looks like it was a good investment even though the shed upgrade is delayed.

  10. #24
    Join Date
    Jan 2014
    Location
    Sydney Upper North Shore
    Posts
    4,464

    Default

    After some discussions and great advice from NCArcher, I've decided to install a 32A sub board rather than the 60A I was originally looking at and what the Electrician that rewired the house suggested (the electrician was saying he always installs sub mains for the max. just in case of future developments)
    The electrician that came around today concurred with NCArchers advice. I already have a 20A circuit to the shed that has two year old wiring to the house and now new wiring connected to it and the new main board.
    This will be utilised for the lights, fans etc. and the sub mains will have two 15A GPOs plus a number of double 10A GPOs for the power tools.
    So probably save a bit on the smaller wire gauge but should be easier to install.

  11. #25
    Join Date
    Feb 2006
    Location
    Perth
    Posts
    27,756

    Default

    Quote Originally Posted by Lappa View Post
    After some discussions and great advice from NCArcher, I've decided to install a 32A sub board rather than the 60A
    .
    .
    I already have a 20A circuit to the shed that has two year old wiring to the house and now new wiring connected to it and the new main board.
    This will be utilised for the lights, fans etc..
    Sounds exactly like what I did.

  12. #26
    Join Date
    Jan 2014
    Location
    Sydney Upper North Shore
    Posts
    4,464

    Default

    The cable distance to the shed is about 20m. Is 6mm twin + earth TPS O/K? The guy reckons is good for a 40A sub board.

  13. #27
    Join Date
    Jan 2007
    Location
    Katoomba NSW
    Posts
    4,770

    Default

    Yes, 6mm will be fine. Depending on how it's installed you could get a bit more out of it. The current carrying capacity changes with its ability to get rid of heat. So a cable installed in air can carry more current than a cable surrounded by insulation in a wall or roof space. With a longer run of cable the resistance of the cable increases and the voltage drop goes up. Max allowed voltage drop is 5% so 12 volts for 240V supply. Your run will drop about 6 volts.
    Those were the droids I was looking for.
    https://autoblastgates.com.au

  14. #28
    Join Date
    Jan 2014
    Location
    Sydney Upper North Shore
    Posts
    4,464

    Default

    Thanks Tony. It's being installed in conduit running along a Bessa block retaining wall behind a lot of shrubbery. We use the same 5% rule for critical circuits in automotive as well.

  15. #29
    Join Date
    Feb 2006
    Location
    Perth
    Posts
    27,756

    Default

    I had a 6 mm^2 4C+E line run even thought the house doesn't have 3P because at that stage (2011) the street was going to be converted to UG power in 2013 and I was hoping to get 3P connected at the same time.
    In the meantime I discovered VFDs and now have 11 of these in my shed
    Now we are not getting 3P power in 2019 but I am not sure we will bother to get 3P power.

    On another matter, it's a 40 m cable run and the mains V in the shed is usually around 240V but I have seen it as high as 252V and hot days like today it's 229V

  16. #30
    Join Date
    May 2007
    Location
    North of the coathanger, Sydney
    Age
    68
    Posts
    9,417

    Default

    It's good to see Tony's consistent in his advice
    regards
    Nick
    veni, vidi,
    tornavi
    Without wood it's just ...

Page 2 of 3 FirstFirst 123 LastLast

Similar Threads

  1. Cutting a thicker board, into a thinner board...
    By kalium in forum WOODWORK - GENERAL
    Replies: 12
    Last Post: 19th November 2014, 06:53 PM
  2. Cheap particle board for shed lining
    By needs sandin in forum THE SHED
    Replies: 2
    Last Post: 5th May 2014, 08:03 PM
  3. Electrical Engineer allowed to do Electrical work?
    By ubeaut in forum PLUMBING, ELECTRICAL, HEATING, COOLING, etc
    Replies: 0
    Last Post: 16th November 2008, 07:10 AM
  4. Electrical cable to the new shed. Sparkies?
    By Cliff Rogers in forum PLUMBING, ELECTRICAL, HEATING, COOLING, etc
    Replies: 38
    Last Post: 14th February 2006, 09:02 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •