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nh3simman
02-04-2007, 09:24 PM
...or just being mean.

You install a rooftop package in the centre of a 10x10m roof. The power comes from a panel on the ground level at one of the corners.
http://i5.tinypic.com/49a5doi.png

What is the minimum length of cable needed?
Brian_UK
02-04-2007, 09:31 PM
12.5m plus a bit to join into the unit itself.

Edit, sorry mis-read the dimensions, as you do :o
Josip
02-04-2007, 09:45 PM
Hi, nh3simman :)

7,5m+a bit to join (say 8m), but that is not correct connection at all;), but for sure very practical :D


Best regards, Josip :)
monkey spanners
02-04-2007, 10:22 PM
Get a 100m drum, its bound to come in useful. LOLJon
chillin out
02-04-2007, 11:42 PM
Get a 100m drum, its bound to come in useful. LOLJon
LOL... good one.

My answer is 9.57m. (plus a bit to join)


Chillin:) :)
Rubba
02-04-2007, 11:58 PM
I agree its about 8, but i like right angles so prob wouldnt go diagonal to the corner of the roof and down!personally id say 13 for a neat install!
nh3simman
03-04-2007, 04:14 AM
Ignoring the fiddly bits at the ends, the type of cable and best practice.

The answer must be between

1. A straight line joining the two points, 7.5m
(yes Jossip, you can't go through the roof or the wall)

and

2. Centre to top corner + top corner to bottom corner, 9.57m


http://i3.tinypic.com/2qcqj50.png
chillin out
03-04-2007, 07:50 PM
So that means I am correct again....lol

Chillin:) :)
Josip
03-04-2007, 11:21 PM
Hi, nh3simman :)


Ignoring the fiddly bits at the ends, the type of cable and best practice.

The answer must be between

1. A straight line joining the two points, 7.5m
(yes Jossip, you can't go through the roof or the wall)

and

2. Centre to top corner + top corner to bottom corner, 9.57m


http://i3.tinypic.com/2qcqj50.png


Why not:confused: , what if I have only 7,5m+ of cable.

Take a look to those pictures, if they can leave cables as shown I can also push them through the wall and roof :D :D

http://www.refrigeration-engineer.com/forums/showthread.php?t=7553

Tell me something now;)

Your second solution for me is not right too, we are engineers. To make it properly we need 12.5m of cable. I like the best practice:), sorry Chillin;)

Best regards, Josip :)
nh3simman
04-04-2007, 03:30 AM
OK Josip, I see your point about messy wiring.

(the answer is still 9m)
slingblade
08-04-2007, 04:22 PM
Get a 100m drum, its bound to come in useful. LOLJon

Problem solved.