Why THHN Wire Isn't Replaceable in Builing and Engineering Field?

When designing and building new projects, engineers need to have a good and comprehensive understanding of the building electrical wire sizes required for planning and the advantages of each wire that can be used for the job. The biggest challenge an engineer will face is wire planning to measure the project and budget.

The most popular type of architectural wire used in construction is thermoplastic high heat resistant nylon coated THHN wire . THHN wires are also commonly used in machine tools, control circuits and some electrical appliances.

THHN Wire Thermoplastic

The thermoplastic insulation of THHN wire is a PVC material, which makes it thinner than most other types of insulation. Thermoplastics also emit toxic fumes when hot enough to burn, so installed THHN wires should not be exposed.

High temperature

It is important to know the temperature at which the insulating layer will decompose. The HH of THHN wire means the insulation can withstand temperatures of 90°C (or 194°F).

Nylon jacket

THHN Wire Protective Jacket Thermoplastic Nylon Jacket. The nylon jacket layer also makes installation easier as the THHN wire will slide freely in the conduit.

THHN wire has various properties:

• Conductor: Stranded or solid depending on size
• Wire: Copper or Aluminum
• Sheath: Polyvinyl chloride (PVC) insulation with nylon jacket (PVC)

In addition to the mechanical protection of the THHN wire, the nylon sheath also protects the THHN wire from abrasion as it passes through the conduit. Additionally, the jacket protects the THHN wire from hydrocarbons such as oil, gasoline, and grease. The tough nylon sheath also protects the insulation from being punctured or accidentally cut as it protects the insulation.

THHN wire is approved for voltages up to 600V and is listed by Underwriters Laboratories (UL) and is rated to 90°C (194°F) in dry environments and 75°C in wet environments C (167°F). THHN wire is considered a dual grade which means THHN wire is suitable for both dry and wet applications.

Therefore, THHN wire is very suitable for engineers to use the main connecting wire in architectural design and engineering with its high heat-resistant nylon coating. THHN wire is also one of the irreplaceable architectural wires for designers and engineers.

Well, the above is the introduction of " Why THHN wire is the main connecting wire in architectural design and engineering and is not an irreplaceable wire ", I hope it can help everyone! It is recommended to continue to pay attention to JZD Cable to learn more about wire and cable information.