Brittle Low Voltage Wire - Electrical - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 10-29-2010, 05:25 PM   #1
Newbie
 
Join Date: May 2010
Posts: 5
Rewards Points: 10
Default

Brittle Low Voltage Wire


Situation: I have a low voltage transformer, output 12V, 200W in my basement. I have a 12 gauge wire running from that to outside of the house, and then another 12 gauge wire connected to that. From that wire I am drawing 199W over two 50W bulbs, and nine 11W bulbs.

Problem: The lights are no longer working, but the transformer is working fine. The wire at the connector seem to have melted parts of the connector, and the wire themselves have each become brittle and hard for about 4 inches on each side.

Question: Is my problem with my size wire gauge, an inferior connector, or the amount of watts I'm drawing?

Advertisement

Kevin321 is offline   Reply With Quote
Old 10-29-2010, 06:00 PM   #2
Mad Scientist
 
Join Date: Dec 2009
Location: Minnesota
Posts: 772
Rewards Points: 512
Default

Brittle Low Voltage Wire


199W / 12V = 16.6 Amps, so you're probably good there. I'd say the connection probably got loose or corroded. That'll make the resistance of the connection go up, which in turn creates a lot of heat.

You'll have to cut off the heat damaged parts of the wire and replace the connector, use something rated for 20A @ 12V.

Advertisement

McSteve is offline   Reply With Quote
Reply

Tags
landscape lighting , low voltage , wire gauge


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Voltage in Metal Roof and Gutters TITAN2390 Electrical 4 10-07-2010 08:44 PM
3-way illuminated switch - voltage present ktulu05 Electrical 18 11-29-2009 05:01 PM
Brittle Wire Insulation Elshupacabra Electrical 13 06-04-2009 12:37 PM
New Stove, old wires - 2 wire vs 3 wire DIYGST Electrical 22 03-02-2009 05:13 PM
Bury Low Voltage Wire in Wall? Tool Junkie Electrical 3 06-16-2008 08:38 AM




Top of Page | View New Posts