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THHN Electrical Wire 12 AWG Solid Bare Copper

THHN 12 AWG solid wire is engineered and manufactured to be a less flexible type of electrical wire. All applications call for different types of wire based on the environment they are placed in and they also have preferences that the user can choose from that may differ from contractor to contractor. The insulation isn’t the only thing to consider as an installer or electrician using electrical wire on a day to day basis.

THHN 12 AWG electrical wire is manufactured in a solid and stranded format based mostly on preference. The solid version is one 12 AWG solid strand of copper which needs to meet a certain outer diameter. This is used in homes and buildings to connect the electrical box to outlets, lights and appliances. The user of solid THHN wire would rather have a stiff wire that holds its form in order to install it in conduit or snake it through a wall of a home or building.

THHN 12 AWG stranded wire is manufactured with 19 strands of copper instead on one solid strand as mentioned above. The strands are not 12 AWG each or the wire would be considered a much bigger gauge size. Instead, the copper strands are much smaller and wound together to equal the same outer diameter of a solid strand of 12 AWG. Copper transmits a certain amount of current based on its size so the 19 strands need to meet the same exact size or it will not be considered a 12 AWG electrical wire.

Again, it’s completely a preference of the user. Some contractors, installers and electricians like flexible wires and some like inflexible wires based on how they complete their installations. Suppliers constantly answer the question, “Can I get 12 AWG THHN wire in a more flexible version”? The answer is yes. There are many types of electrical wire and building wire that suit the preferences of each user.

Speak to your supplier about getting something more or less flexible because they, or their manufacturer, will most likely have something to fit your needs. It might mean getting a different type of insulation as well but they will make sure the new type of electrical wire is still approved for the job in which you’re using it. Even stranded THHN wire isn’t very flexible compared to single conductor portable cord wires with rubber insulation. The strands are incredibly small and the rubber insulation also adds to the flexibility.

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UL1007 16 AWG Hook Up Wire Compared To UL1015

UL1007 and UL1015 are both types of PVC hook up wire used indoors in applications such as appliances and electronic devices. Both come in about 10 solid color options along with an unlimited amount of striped color options making it very convenient for contract assembly houses that manufacture wire harnesses and assemblies.

The two main differences between these types of hook up wire are the outer diameter and the voltage rating. UL1007 wire is rated for 300 volts with an outer diameter of .016 inches while UL1015 wire is rated for 600 volts with an outer diameter of .030 inches. Other than those differences the two wires are nearly identical.

Both are tested and approved by UL, or Underwriters Laboratories, and CSA, or Canadian Standard Association. There was also a problem about 5 years ago with the inclusion of lead in hook up wire which was removed and stamped as RoHS compliant, meaning lead free. There are more restricted materials on the list of being RoHS compliant but lead was the main reason for getting the project completed. Most all wire and cable on the market is now RoHS compliant unless it was manufactured over 5 years ago. You can ask for a compliant specification sheet proving that it is if you need it for your records.

Both types of 16 AWG PVC wire (UL1007 and UL1015) are manufactured with 26 strands of 30 AWG tinned copper. The tin coating over the copper helps in the soldering process for contract assembly houses and personal users at home. Attempting to stick solder to bare copper is difficult but was proven easier with the additional tin coating over the copper. The tin adheres to the solder creating a much better and easier connection.

Feel free to call us with and questions you have about bare copper, tinned copper, PVC wire or the UL, CSA and RoHS compliant markings on the insulation. Everything from the copper strands to the markings on the insulation has a significant meaning in the application of that particular electrical wire. Make sure you consult your supplier or electrician to be sure the connection you’re about to make is the correct one. The worst that can happen is you’ll pick the brain of someone with direct experience in the industry to help you with your venture.

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