Cable Calcs HELP!
Dec 22nd 2009 | 1:47 pm
#1
Thread Starter
Forum Regular
Joined: Jan 2008
Posts: 196
From: Adelaide...how much longer for christs sake
Cable Calcs HELP!
Ayup,
So im on with the PEER workbook and all my leccy books are on a boat somewhere!
I need some pointers with the cable calcs.
If I want to find minimum cable size do I just find all the right derating factors for Ambient Temp, Bunching etc then times them against the Current Carrying Capacity values??
If anyone has an answer to Q6 of worksheet E, id be gratefull!!
Thanks,
Jon.
So im on with the PEER workbook and all my leccy books are on a boat somewhere!
I need some pointers with the cable calcs.
If I want to find minimum cable size do I just find all the right derating factors for Ambient Temp, Bunching etc then times them against the Current Carrying Capacity values??
If anyone has an answer to Q6 of worksheet E, id be gratefull!!
Thanks,
Jon.
Jan 5th 2010 | 6:17 pm
#2
Forum Regular
Joined: Aug 2006
Posts: 32
From: Gympie, QLD
Re: Cable Calcs HELP!
Hi
Had a look at my notes from when I did it........
I put - derating factor for bunching 0.75, No derate for temperature. so
75 amp x 1/0.75 = 100 amp
From table 12 - 35mm caries 110 amp.
Not sure if it is correct as the guy from Peer never even asked to see it.
Hope this helps
Luke
Had a look at my notes from when I did it........
I put - derating factor for bunching 0.75, No derate for temperature. so
75 amp x 1/0.75 = 100 amp
From table 12 - 35mm caries 110 amp.
Not sure if it is correct as the guy from Peer never even asked to see it.
Hope this helps
Luke
Jan 12th 2010 | 10:18 pm
#3
Thread Starter
Forum Regular
Joined: Jan 2008
Posts: 196
From: Adelaide...how much longer for christs sake
Re: Cable Calcs HELP!
Nice one Luke,
Thanks mate!
Thanks mate!
