noalox compound: Electric  -- Home Building Discussion Forum and Review noalox compound: Electric -- Home Building Discussion Forum

  parts   |   manuals   |   discussion   |   photos   |   podcast   |   reviews   |   specs   |   dealers   |   classifieds   |   contact   |   faq   |   myProfile   |   home          Login Now | Sign Up


FAQ:   What is a tractor?

Forum Index
New As Posted | Active Subjects



www.emerichsales.com - New & Used Equipment
          View Tractors For Sale!


www.partsbynet.com - Lawn and Garden Equipment Parts


Bernardsville Landscape Lighting
Click to Post a New Message!

Discussion Boards > Active Subjects > Messages as Posted > Electric Forum

Page [ 1 ] |
Reply | Pop Up Window Reply | Add PhotoAdd Photo
 08-19-2008, 16:44 Post: 156191
bemike61



Join Date: Feb 2008
Location: kentucky
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 67
 noalox compound

any electric experts help me understand what anti oxidantjoint compound is used for. i am getting the stuff for my garage, having new service put in. i am buying the items and never seen or heard of this.

aluminum service to panel box, everything else is copper.

thanks






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 08-19-2008, 21:17 Post: 156194
kwschumm



View my Photos

View my Photos  Pics
Join Date: Feb 2003
Location: NW Oregon
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5764
 noalox compound

Antioxidant is just that - it coats the metal to keep oxygen away. Oxygen causes surface corrosion (oxidation). Even a tiny bit of oxidation will cause resistance at connections to increase. Increased resistance causes increased heat. Increased heat causes thermal expansion. Aluminum expands and contracts more with temperature than does copper, thus loosening the connection with each thermal cycle. Remember years ago when there were a bunch of house fires blamed on aluminum wiring? Reports are it was caused exactly by this problem.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 08-19-2008, 23:41 Post: 156197
auerbach



View my Photos

View my Photos  Pics
Join Date: Sep 2007
Location: West of Toronto
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 2168
 noalox compound

Exactly. For decades high-tension wiring has been mostly aluminum, which conducts almost as well as copper. When alum wiring was first offered for housing, it was seen as lighter, cheaper, and more flexible than copper, and the problem of it interacting with copper when the two were joined, for instance in junction boxes, didn't appear for some years after installation. That chemical is designed to make the alum as inert as the copper. (In my jurisdiction it's now illegal to use the two together.)






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 08-20-2008, 10:12 Post: 156199
AnnBrush



View my Photos

View my Photos  Pics
Join Date: Mar 2004
Location: Troy OH
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 461
 noalox compound

Aluminum and copper are still routinely used together, the device just has to be UL listed for Al/Cu usage. For example buss bars in panels and contacts for breakers are almost all aluminum. Breakers still accept copper wires (in Residential wiring this usually = romex) at the screw in contact point where you have an aluminum screw / receptacle and a copper wire. The antioxidant compound is most needed at the point where the service cable neutral enters the panel and is attached via screw lugs to the neutral bus. Often water enters the cable (SEU type) outside and travels down the cable beneath the first insulation layer (plastic compound) along the outermost aluminum sheathing (neutral). This water then comes in direct contact with the aluminum bus bar in the panel before it has opportunity to evaporate.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

Reply | Pop Up Window Reply | Add PhotoAdd Photo


Page [ 1 ] |

Discussion Boards > Active Subjects > Messages as Posted > Electric Forum

Thread 156191 Filter by Poster:
AnnBrush 1 | auerbach 1 | bemike61 1 | kwschumm 1 |




Most Viewed

+ Hanging Ceiling Fan in Great room
+ pole barn sub panel
+ need a 110V winch.
+ Breaker Trips After lIghts on 30 minutes
+ Back-up power
+ Underground Elec.- direct-burial vs in conduit
+ trouble shooting
+ ground wireing
+ Underground Wiring
+ Best Refrigerator for the money?

Most Discussion

+ need a 110V winch.
+ Hanging Ceiling Fan in Great r
+ Back-up power
+ pole barn sub panel
+ Turn a freezer into a refriger
+ Underground Wiring
+ trouble shooting
+ wiring my new garage
+ Tapping in to Well Electric
+ Maytag Oven.

Newest Topics

+ LED light bulb hum
+ Breaker Trips After lIghts on 30 minutes
+ Power 120v heat strip off one phase of 240v line
+ Maytag Oven.
+ trouble shooting
+ Infrared space heaters
+ T-8's or T-12's?
+ lighting
+ noalox compound
+ 220 pump shed













Turbochargers for Tractors and Industrial Machines
Cab Glass for Tractors and Industrial Machines

Alternators for Tractors and Industrial Machines
Radiators for Tractors and Industrial Machines

Driveline Components for Tractors and Industrial Machines
Starter Motors for Tractors and Industrial Machines