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Discuss Onsite guide 17th?? in the Electrical Tools and Products area at ElectriciansForums.net

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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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S

Shakey

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
Luke, 30th May
 
W

wayne

sell you mine for a tenner let you have it at the end of next month
 
Last edited by a moderator:
S

Shakey

More worrying Luke, is how did you 'milk up' your OSG in the first place:p
 
D

dragon-av

Aw nuts i guess that means the one i just ordered (cheap) is now already out of date...... Any idea on what has changed?
 
S

Shakey

Aw nuts i guess that means the one i just ordered (cheap) is now already out of date...... Any idea on what has changed?
pretty much the whole ruddy book

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:p
 
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