![]() If a longer cable is needed, the user should consider thicker gauge sizes. A longer, thinner welding cable will carry lower ampacity. GAUGE SIZE: It is critical to select the proper gauge size for the given welding application. It is essential to keep in mind (1) ampacity ratings decrease as length increases due to additional resistance, and (2) welding cable should be spread apart to allow heat to dissipate during use. LENGTH: Welding cables should be long enough to provide the user with adequate length to reach all work areas-without becoming a hazard. ![]() ![]() Specifications that should be considered when selecting welding cable include:ĪMPACITY: Welding cable ampacity (also known as current-carrying capacity or current rating) refers to the maximum amount of current (in amperes) that a cable conductor can continuously and safely carry without exceeding the operating temperature rating. ![]() This information is for reference only, and it is highly recommended the user consult a licensed electrical engineer for a particular welding application.įor welding applications, using the proper cable gauge size is critical to ensure high-quality welds and protect the user and their welding equipment. Direct Wire’s welding cable ampacity chart intends to support and guide welding professionals toward the proper cable gauge and length.
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