Waterproof grease is fine. I agree that copper based anti seize is a bad thing on aluminum. Definitely using the antioxidant paste, but only on the + terminals for now, not on the copper to copper connections, as the stuff says nothing about use on Cu/Cu joints. I'll coat those with fluorocarbon grease post assembly. I am sorry, which part of your system is Al? When applied liberally to the surfaces connection point, the grease will fill voids, seal out air and moisture which causes oxidation, and provide better conductivity. As I understand it, zinc oxide and similar pigments used as corrosion inhibitors work for steel parts because they are basic and raise pH to... Strip carefully. Make sure the copper wire has no oxidation on the conductor. << < … The typical upgrade is to add pigtails using a special grease on the aluminum-copper joint to prevent corrosion. Compositepro, I did a search first and read what was there, but the responses were mostly from electrical people rather than people knowledgeable i... The purpose of an electrical contact lubricant is to prevent corrosion and lubricate the connection for easier maintenance. Pigtailing copper to aluminum with solid wire, … This application is available in a grease form that prevents the oxygen in the air from affecting the aluminum. Current Canadian codes require that the connectors used must be specially marked for connecting aluminum to copper. Connections between aluminum and copper wire need to be handled specially. Oxidation changes the color of copper to white. Attach a UL-approved wire nut connector to any junctions between aluminum and copper wiring. Its (aluminum) used some here, more for service entrance, but that's usually installed by trained professional utility providers instead of … Apparently this material is zinc powder in a polymer grease binder which is commonly used in copper to aluminum wire joints. Includes 2 purple connectors. EdStainless: indeed the datasheet says something to the effect of, "Zinc particles cut the aluminum oxide coating...". However, a warning on the... But an electrician can make the connections safe by adding a short section of copper wire to the end of each aluminum wire.That way, copper rather than aluminum will be connected to each switch, outlet or other device. Step 3 Find out if your aluminum wiring meets today's NEC standards and how to fix it. However, if you're using aluminum wiring, applying an antioxidant to the aluminum wiring makes it safer. Kirk, I'm just NOT a fan of aluminum wire use, I've seen too much go bad due to improper torque or failure to maintain proper torque in connectors or failure to correctly use anti oxidant grease designed for aluminum wire, where copper wire is more forgiving. I know this is a very very old post, but I thought it was important to explain the reason behind the marrett failing in the picture so people that... Tom, This electrical grease has been used for over 65 years to prevent corrosion in electrical connectors from low micro-power electronics to high voltage switchgear. KEY PROPERTIES OF ALUMINIUM GREASE: Typically aluminium grease can better resist water washout compared to a lithium based grease and has a modestly better oxidation stability. Our records showed a much higher incidence of corrosion failure using conductive grease. Live-action square-wire spring expands and contracts with the aluminum wire. It is an anti-oxidation compound (a conductive grease substance) that electricians use on electrical connections, as well as conduit connections, and other places where copper and/or aluminum join, which are exposed to the elements and need lasting protection. In this study, copper-to-copper, aluminum-to-copper, and aluminum-to-aluminum connections were subjected to accelerated aging which consisted of 2000 hours of If No. Ask Your Own Electrical Question. Current Canadian codes require that the connectors used must be specially marked for connecting aluminum to copper. Are these the connectors that also have abrasive in them to 'cut' the aluminum oxide film? Share this conversation. Fix the problem. 3. In this blog we are going to explore two different tools, alumiconn and heat shrink crimp connectors, and compare them against eachother so that you have the right tool for your wiring application. Show More. Leaving aluminium/steel in bare contact will definitely lead to seizing though. The grease is applied to the rubber boot of the plug wire. There was a thread in one of the electrical forums about a year ago on this. A grease for this application cannot be electrically conductive or it... Aluminum weighs half of the equivalent ampacity copper, which is advantageous for pulling or supporting. Copper grease contains unreacted particles of copper. For ALUMINUM-TO-ALUMINUM and ALUMINUM-TO-COPPER connections. 2 … NEVER connect copper to galvanized metal (towers) or aluminum - use a stainless steal interface between these two metals using stainless steal hardware! Anti-oxidant grease for copper connections. Copper/Aluminum house wiring pigtails and RFI? 2. Show Less. Drop cables were aluminum shields and connectors, with copper clad steel centers. Rub the wires with your fingers, thickly coating the wire with the grease. Wiping the wires with 240-grit wet-or-dry abrasive paper helps work the grease into the wire. Attach a UL-approved wire nut connector to any junctions between aluminum and copper wiring. Copper increases aluminum's oxidation rate when they contact each other. Connections between aluminum and copper wire need to be handled specially. In the non bike world, anti seize is usually specified when you have stuff running at high temperature and a lot of the formulations are to make it work at high temperature. Anti-Oxidant Joint Compound - Zinc Based. Another compliant option is the King AlumiConn, which can connect both aluminum to copper and aluminum to aluminum. Always use an aluminum connector for aluminum or copper conductor. To avoid having to always buy special fixtures, many people add a short copper wire to the end of the aluminum wire (we call this a pigtail) that then allows you to attach the copper wire to any fixture. Copper remains the gold standard (so to speak) for electrical wire, but for roughly a decade beginning in the mid-60s, aluminum wiring was also a popular option. It is a totally unsuitable lubricant for brake componenents. That is why large lugs are aluminum. Or is it only necessary when connecting aluminum wires to copper wires? Unfortunately these are no longer listed for Al. Improves conductivity; penetrates aluminum oxide to maintain inter-strand and inter-conductor current paths. NO-OX-ID electrical grease prevents the formation of oxides, sulfides and other corrosion deposits on copper, aluminum, and steel surfaces and conductors. AFL's No. One way is to electrically insulate the two metals from each other, for example by using plastic or fibre washers to separate steel water pipes from copper-based fittings or by using a coat of grease to separate aluminum and steel parts. Completely rewiring your home isn’t practical in most situations—it means tearing into walls and ceilings. There are other mechanical splices for aluminum to copper connections for larger cables that would require it but your request listed an old term for a wire nut/ cap. Also, aluminum wireneuts are rubbish. I was on the phone to Lockheed Technical discussing a braking issue one time when the subject of copper grease came up. But rewiring an entire house is not cheap and requires a lot of work. Aluminum Wiring. The NEC requires that the wire be connected together using special crimp devices, with an anti-oxidant grease. Aluminum wiring is sometimes found in older houses, and people often become anxious about connecting it with copper wiring in extensions, unsure of whether it is safe or efficient to do so. Aluminum Wiring (NEC 2002) – Self Help and More. Stuff like splicing connectors or push wire connectors are for that purpose. Both solve the problem of connecting two different metals which no... Current Denver City Ordinance requires that the connec-tors used must be specially marked for connecting aluminum to cop-per. The National Electrical Code requires that the wire be connected together using special crimp devices, with an antioxidant grease (see If you do use them, fill them with a corrosion inhibitor such as Penetrox or No-Alox. Hexagonal head for easy installation by hand or with a standard nut driver. Aluminum conductors are larger in size than equal ampacity copper conductors. Copper oxide (the greenish copper corrosion) is NOT conductive! Putting aluminum wire on copper terminations is a bad idea, it's what started all the Al hubballoo in the furst place. Copper based anti oxidant connection grease for all copper to copper connections is ideal for copper strap connection points. Many electricians suggest changing out aluminum wires in favor of copper wiring. Aluminium grease is a more expensive lubricant to produce. The Technical advisor said " I wish sometimes that that brown s*^te had never been invented." * lithium grease doesn't react because the lithium in it is already reacted. If in doubt, use lithium grease, but copper grease is fine for almost anything you'll come across on a bicycle. Are you... Depending on the wire going to your light, you might have to pigtail copper to aluminum in the above manner and then wirenut the new copper to the light. Another application of conductive greases for protecting high amperage switches, where they lubricate and-in theory-reduce damage from arcing. 4. Hi there. OK, I'm convinced. Definitely using the antioxidant paste, but only on the + terminals for now, not on the copper to copper connections, as the st... The cable shields were aluminum, the trunk center conductors cables were copper clad aluminum. However, if you’re using aluminum wiring, applying an antioxidant to the aluminum wiring makes it safer. Does anti seize affect torque? Boats have few if any aluminum terminals or unions. Unlike dielectric grease or Vaseline, it conducts electricity.
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