SailNet Community - View Single Post - Wiring cabin lights in Serial
View Single Post
  #38  
Old 02-27-2008
artbyjody's Avatar
artbyjody artbyjody is offline
Senior Member
 
Join Date: Jan 2008
Location: Bellingham, PNW
Posts: 3,146
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
artbyjody is just really nice artbyjody is just really nice artbyjody is just really nice artbyjody is just really nice
Oversizing wire however actually generates more load resistance to begin with and should not be overly done or practiced as you decrease the overall cpacity of your storage system...which is the making the batteries work harder and deplete faster...
Oversizing you have to consider also distance and gauge ensure sure you do not see more than a 3% drop in voltage over the run... (if you can make sense of it - the charts http://www.powerstream.com/Wire_Size.htm)

A checklist however somewhat related:

http://www.islandnet.com/robb/marine.html#WiresCables (good site in general)

Not that it is an evil practice -however....really should be avoided...


VD= 2*K*I*L/ CSA

WHERE:

VD= VOLTAGE DROP
I= CURRENT
L= DISTANCE OF THE LOAD FROM THE OUTLET (IN FT)
K= 12 FOR COPPER AND 19 ALUMINUM (FOR MAXIMUM TEMP OF 75 DC)
CSA= CONDUCTOR CROSS SECTIONAL AREA IN CIRCULAR MILS.
__________________
-- Jody

S/V "
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
" -
1983, Barberis Show 38! or
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.








Last edited by artbyjody; 02-27-2008 at 12:36 AM.
Reply With Quote Share with Facebook