Hire the best Electrician

whats difference between 7/0.20 and 14/0.20 wire??

Results 1 to 3 of 3
  1. #1
    2K Club Member
    Join Date
    Mar 2008

    Default whats difference between 7/0.20 and 14/0.20 wire??

    installing a security system and get to choose between 7/0.20 and 14/0.20 wire, is there any difference between them besides the price? should i get one over the other?? and if so why??

  2. #2
    Tool Whore - 1K Club Member Vernonv's Avatar
    Join Date
    Oct 2006
    Armidale NSW


    One has twice the number of strands as the other (i.e. 14 strands of 0.2 wire as opposed to 7). The 14 strand will have a lower resistance/metre than the 7, so for long runs it would be better. However, being a security system I doubt you are dealing with high currents, so voltage drop probably won't be a big issue.

    Does the system manual stipulate what size cable should be used?
    Is there a substantial difference in price?

    Bite off more than you can chew and then chew like crazy.

  3. #3
    Slow but rough Uncle Bob's Avatar
    Join Date
    Nov 2007
    North Cooma, Canberra


    I think that means the number of strand times the conductor cross section area. More strands would mean lower resistance over the length and would be better for longer runs.
    Edit: Beaten by Vern lol

Similar Threads

  1. Replies: 8
    Last Post: 1st Oct 2008, 09:43 PM
  2. Replies: 14
    Last Post: 26th Sep 2008, 07:29 PM
  3. 1 piece or 2 piece toilet whats difference?
    By bingoshelley in forum Plumbing
    Replies: 16
    Last Post: 21st Jan 2008, 11:56 PM
  4. TV cables, a difference?
    By JDub in forum Television, Computers & Phones
    Replies: 16
    Last Post: 2nd Jun 2005, 11:39 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts