tn-c-s

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  1. K

    TN-C-S supply to contruction site

    I have been asked to provide a supply to 2 x containers on a contruction site (1 for materials 1 for tea hut) with sockets for battery chargers etc. The supply at the house to be refurbed/extended is TN-C-S. Reg 704.411.3.1 prohibits use of TN-C-S unless to a fixed building. Could...
    • knight1
    • Thread
    • aus electricians' talk site plan supply supply to tn-c-s
    • Replies: 4
    • Forum: Australia
  2. N

    TN-S vv TN-C-S

    I'm interested in collating the differences in the requirements (not the definitions) between TN-S and TN-C-S. I've aleady seen an example in another post tonight: "TN-S Ze max is 0.8", Any other quotes (with regs reference if possible)?
  3. S

    TN-C-S and earth electrode?

    Why would someone want to go and put one in on a PME system? On a closer examination, I noticed that the main earthing conductor had been removed from the PME cut-out! So, had the spark who installed this electrode just gone straight in, done a Zs which appeared excessively high without...
  4. K

    TN-C-S or TN-S?

    How do you check if installation earthing is TN-C-S or TN-S if in doubt?
    • KevA
    • Thread
    • aus electricians' talk tn-c-s tn-s
    • Replies: 7
    • Forum: Australia
  5. C

    TN-C-S + earthing

    Why on a caravan site or some other outbuilding does the earth have to be an earth electrode and not the earthing on the supplying TN-C-S ???
  6. B

    tn-c-s help

    hi all. i may be completely wrong but on a tn-c-s system if i was testing at say a lighting point, lighting circuit breaker off but main switch on then i would have continuity between neutral and cpc, right? but then by my reckoning if i were to then open the main switch then the continuity...

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