Quality Testing And Certification Requirements For UL 3132 Wire: How To Ensure Compliance With UL Standards?

1. What is UL 3132 wire? Why Care about UL certification?

In the internal wiring of electronic devices, choosing an electronic wire that meets UL standards is critical for safety, durability, and compliance. UL 3132 wire, as a low-voltage silicone electronic wire, is widely used in home appliances, LED lighting, electric heating equipment and other fields.

However, there are a lot of counterfeit or substandard UL wire in the market, how to ensure that the UL 3132 wire you purchase is truly UL certified products? This article will give you an in-depth understanding of the UL 758 standard, quality testing methods, and how to identify genuine UL certified cables.

2. UL 758 standard for UL 3132 wire requirements

UL 758 is an American safety standard for Appliance Wiring Material (AWM), which specifies requirements for the structure, material, electrical properties, fire resistance, and temperature resistance of electronic wires.

For UL 3132 wire, UL 758 main requirements include:

Rated voltage: 150V

Rated temperature: -60℃ to 105℃

Insulating material: Silicone Rubber

Conductor material: multiple strands of tinned copper wire, in accordance with ASTM standards

Fire resistance test: to comply with VW-1 flame retardant test

Temperature and pressure resistance test: need to pass high temperature aging, dielectric strength, insulation resistance and other tests

UL 758 certified wire means that it can be used safely for a long time within a specified temperature and voltage range, without electrical failure, short circuit or even fire due to quality problems.

3. How to identify UL certified cables? Avoid fake products!

Due to the high cost of UL certified cables, some merchants may sell fake UL cables. How to avoid buying fake products?

Check the UL certification mark

A real UL cable is marked with UL and the file number (E+ digits), for example, UL AWM 3132 150V 105 ° C VW-1 E123456.

You can enter E123456 on UL official website (www.ul.com) to check whether there is really a certification record.

View UL certification documents

Regular manufacturers can provide UL certification reports, including test data and manufacturer information.

Before purchasing, you can obtain the UL certificate or report from the supplier and verify the authenticity on the UL official website.

Observe appearance and print quality

The printing on a regular UL cable is clear and not easy to erase. The printing on a counterfeit cable may be blurred and wiped away.

The surface of the cable should be smooth without obvious burrs or cracks; otherwise, the cable may be of inferior quality.

4. Common quality test methods for UL 3132 wire

Before entering the market, UL 3132 wire must undergo a series of rigorous tests to ensure its safety and reliability. Here are a few key tests:

Temperature Test (High-Temperature test)

The wire is heated continuously in a high temperature oven (105 ° C) for 168 hours, and then its insulation is checked for aging, brittling or cracking.

Dielectric Voltage Withstand Test

Apply AC 1500V or DC 2500V voltage between the wire conductor and the insulation layer for 60 seconds to ensure that the wire will not break down.

Insulation Resistance Test (Insulation Resistance Test)

Apply 500V DC between the conductor and the insulation layer to test whether the resistance value meets the standard (usually > 100 MΩ/km).

Flame retardant test (VW-1 flame retardant test)

Fix the wire in a vertical position, burn it with a standard flame (750 ° C) for 15 seconds, and then extinguish the fire source.

UL certification requirements: The flame must self-extinguishes within 60 seconds and does not produce droplets.

Tensile Strength Test

Test the tensile strength of the wire to ensure that it will not break due to mechanical stress during normal use.

These tests ensure that UL 3132 wire maintains safe and stable performance in real-world applications.

5. Key recommendations when purchasing UL 3132 wire

Choose a legitimate UL certified supplier: Check whether the manufacturer has passed the UL certification to avoid purchasing the three products.

Check the UL mark and certification number: Visit the UL website to verify that the product is truly registered.

Request the quality test report: check whether it has passed key tests such as temperature resistance, pressure resistance and flame retardant.

Avoid the underpricing trap: Products that are too much below the market price can often be fake or inferior.

6. Conclusion: How to ensure UL 3132 line meets UL standards?

UL 3132 wire must comply with UL 758 standards, including requirements on rated voltage, temperature resistance, and flame retardant.

To avoid counterfeit products, check the UL certification mark, UL official website certification number, and manufacturer qualification.

The product must be tested for temperature resistance, pressure resistance and flame retardant to ensure long-term safe use.

Choose UL 3132 wires that truly comply with UL certification to ensure the safe and stable operation of the equipment! If you have questions about the quality inspection or purchase of UL cables, welcome to leave a message! As a well-known Cable manufacturer and manufacturer in China, Suke Cable is always ready to serve you.