SAE J1128 PDF

WireGarage GXL stranded automotive wire is designed for use in any electrical application where heat, chemical, and abrasion resistance is required. The smooth-finish insulation is made of chemically altered cross-linked polyethylene XLPE , making it resistant to heat, abrasion, moisture, gasoline, oil, solvents, grease, and most acids. It is typically used in high temperature areas such as automobile engine compartments, and meets SAE J standards. In stock.

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What does SAE mean? It's the abbreviation for the Society of Automotive Engineers which is the American group that establishes and maintains the standards for American automotive components and manufacturing. The reason it is important to us is that they have tested the materials and processes used to manufacture wire, and determined which wire materials will work and which will fail in automotive applications.

Our job is to use the information these groups have provided to select the best wire and other components for our specific application. It's not particularly difficult, we simply have to be aware that there are varying levels of temperature and mechanical toughness, and balance cost vs.

The American specs covering automotive wire are SAE J and J, and specify material and finished temperature and mechanical behaviors of the wire. Generally, if a wire is listed by one group for an application, it is acceptable for that application by the other two. Whether you're preparing a race car, or wiring a street machine, your main wiring concerns are:.

The most important factors affecting safety, reliability, and serviceability are: 1. Of these factors, heat damage is far and away your biggest worry.

High temperature beyond the wire's rating can directly damage any insulation as well as make it much more susceptible to the other kinds of damage mentioned above, and so the temperature rating of the insulation is the first thing for you to look at.

Check the bottle label the next time you're adding antifreeze. So there are two different insulations specifically designed for automotive use. Now this business of technical specs may be a big yawn-provoker for you, but keep in mind that if you are buying wire that is not labeled as conforming to these specs, which is usually the case in your local automotive parts store, you are spending good money and your valuable time taking an unnecessary risk with a demonstrably inferior product.

Using wire conforming to these specifications means that you benefit from the experience and testing done by both the automotive manufacturers and the standards organizations. And the cost is typically not that different.

In fact, most often the price of a low-temperature, flimsy wire wire at your local hardware or auto parts store is more than you would pay for the better wire here at kayjayco. We did go out and do some market research, and this was one of the factors we considered in setting our prices. Makes you wonder if they really know what they're talking about. The next thing is mechanical damage , which is where you should consider the thickness of the insulation.

The thicker insulations are simply more rugged. Any wiring in an off-road vehicle that has any risk of being hit by flying rock or other debris should use both the heaviest insulation available and a protective covering, whereas a race car would go with the thin insulation to saveweight. Can the wire take the DEETing? Chemical damage is less of an issue in most circumstances. Even brake fluid won't normally bother modern wire insulations, but some chlorinated solvents will aggressively attack PVC insulation.

I don't know whether the wire will resist DEET or not, just thought the info might be useful. And, it's all I could think of that rhymed. One approach you can take is to get the wire with the toughest, highest temperature insulation available and use it, for example a Mil spec , Kapton insulated, tin-plated fine conductor wire.

It's a tough, lightweight, readily available aviation wire, although available in white only. This will work just fine, but there are downsides: safety in an accident, cost, difficulty installation, and reduced serviceability.

The safety issue relates to using Kapton insulated wire, which was the insulation of choice for commercial and military aircraft back in the eightys. An Aussie study found that under "hard" short circuit conditions, such as might be experienced in a crash, the Kapton "explodes in a ball of flame". There's a lot of the stuff available, but the Navy for example has replaced Kapton wire in most aviation applications for this reason.

So one must choose carefully even using this approach; there are wire insulations available that resolve this problem, but they're hard to obtain; if you really want to pursue this call or email me, see the company info pages.

I'll touch on the other issues again later. Cross-linking changes thermoplastic polyethylene to a thermosetting material with a greater resistance to environmental stress cracking, cut-through, ozone, and solvents such as motor oil, coolant, or fuels than PVC.

The XPE insulations are much tougher mechanically and chemically that the PVC insulations at any temperature, in addition to the wider temperature range. The SAE wire tables here give the information discussed above in detail. In particular, note the differences in insulation thickness and in weight per foot of wire. Shopping Cart. The Zen of Heat or, What, me worry?. Can the wire take the Heat?

Can the wire take the Beat ing? OK, So?

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SAE J1128 Us Standard Copper Gxl 16AWG XLPE Automotive Wire

What does SAE mean? It's the abbreviation for the Society of Automotive Engineers which is the American group that establishes and maintains the standards for American automotive components and manufacturing. The reason it is important to us is that they have tested the materials and processes used to manufacture wire, and determined which wire materials will work and which will fail in automotive applications. Our job is to use the information these groups have provided to select the best wire and other components for our specific application. It's not particularly difficult, we simply have to be aware that there are varying levels of temperature and mechanical toughness, and balance cost vs.

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Alpha SAE J1128 (Type GXL) - 50 V, 125°C

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