![]() ![]() Use extreme caution when working with electricity, as it can cause serious injury or even death when not handled properly. ![]() Photo: Safety Precautions for Splicing Electrical Wiresīefore beginning any work to connect electrical wires, turn off the circuit breaker supplying electricity to the wire that you want to splice. RELATED: The Best Multimeters for DIYers and Pros Overloading a wire with more than its intended amperage could cause it to overheat, melt, and possibly catch fire. For example, a 12-gauge wire is capable of handling approximately 20 amperes, while a 10-gauge wire is capable of handling 30 amperes. Wire gauge is determined by the amount of amperage the wire is expected to carry. It must be noted that while it is possible to splice different types of Romex wire-12/2 to 12/3, for instance-you should never splice together wires of a different gauge. 6/3-6-gauge wire with three inner insulated conductors and ground, commonly used for electric ranges and ovens.10/3-10-gauge wire with three inner insulated conductors and ground, commonly used for electric clothes dryers.10/2-10-gauge wire with two inner insulated conductors and ground, commonly used for water heaters.12/3-12-gauge wire with three inner insulated conductors and ground, commonly used for switches and light fixtures.Other types of Romex wire used in residential construction are: Note: “NMC” is an acronym for nonmetallic cable, the type of wire that is most common in residential applications. ![]() The markings stamped on the outer insulation, “12/2 NMC with ground,” indicate the size and type of wire-in other words, a 12-gauge wire with two inner insulated conductors (a black “common” and white “neutral”) as well as a non-insulated grounding wire. (In this example, we’re connecting a 12/2 NMC with ground to the same type and size of wire.) Romex is a brand name of wire preferred by many electricians that is commonly used in residential applications. The following instructions assume that you’re splicing together two Romex wires of the same type. If you’re not sure you know exactly how to splice wires, read on for more info. Learning how to splice wires correctly will not only ensure that your electrical repairs and upgrades function properly, but equally importantly, will also keep you and your property safe. To learn more about how and for what purposes Amazon uses personal information (such as Amazon Store order history), please visit our Privacy Notice.If your around-the-house to-do list includes an ambitious DIY electrical project, be it installing a light fixture, replacing a switch, or extending electrical wires to add another outlet in the garage, you’ll need to know the fundamental skill of splicing wires. You can change your choices at any time by visiting Cookie Preferences, as described in the Cookie Notice. Click ‘Customise Cookies’ to decline these cookies, make more detailed choices, or learn more. Third parties use cookies for their purposes of displaying and measuring personalised ads, generating audience insights, and developing and improving products. This includes using first- and third-party cookies, which store or access standard device information such as a unique identifier. If you agree, we’ll also use cookies to complement your shopping experience across the Amazon stores as described in our Cookie Notice. We also use these cookies to understand how customers use our services (for example, by measuring site visits) so we can make improvements. We use cookies and similar tools that are necessary to enable you to make purchases, to enhance your shopping experiences and to provide our services, as detailed in our Cookie Notice. ![]()
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