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24-04-2008
| #1 (permalink) |
| Administrator  Join Date: Jul 2007 Location: South Yorkshire
Posts: 724
  |  Onsite guide 17th?? just wondering, as I've mentioned before, mine got covered in milk, so whens the onsite guide for the 17th going to be out? any one know. Wud i be wasting my £17 if i was to order one and then an updated version gets released typically a week later? regards luke |
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If You Build It, They Will Come n If it aint broken don't fix it!
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24-04-2008
| #2 (permalink) | |
| Guest
Posts: n/a
| Re: Onsite guide 17th?? Quote:
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Re: Onsite guide 17th?? 
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22-05-2008
| #8 (permalink) | |
| Guest
Posts: n/a
| Re: Onsite guide 17th?? Quote:
take table 7.1 for example you know, you select a MCB size (after calculating your Ib), select your Iz cable size, look accross to TNS or TNCS, decide if its 0.4 or 5 seconds disconnection time, and it tells you you can have 64M or whaterver Based on the R1+R2 briniging it under the max Zz and the Vdrop comlying with 4 % but now: the Zs value has changed 0.4 and 5 seconds criteria has changed differnect vdrops for lighting and other circuits, and different again for public/private supply So that table has to be split up, changed, modified And the old one is abourt as much use as a Chelsea penalty taker (ouch!) thats just one example! RCD requirements for TT are out the window (100mA etc) sp basically, do what Luke did Just pour milk over it  | |
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