Heating cables are integral components in various applications, from residential heating systems to industrial processes. Ensuring their durability and performance under different conditions is crucial for safety and efficiency. Mechanical strength tests are essential in evaluating how well these cables can withstand physical stresses, ensuring they remain functional and safe throughout their lifespan. These tests include deformation, impact, tensile, and resistance to cutting, each playing a significant role in assessing the cable's robustness.
The cable is pressed on a cylindrical steel rod of 6 mm of diameter. The cable must not be damaged, and the electrical performance must not be affected.
Dropping an object on the cable at different temperatures
The heating cable is attached to a machine that gradually increases the pulling force. The electrical performance of the cable must not be affected.
A sharp object is pressed against the cable. The pressure applied to the cutting edge shall be more than 445N. The electrical performance of the cable must not be affected.
Below is a comparison between the T2Blue heating cable and the new T2Blue+ heating cable.
| T2Blue | T2Blue+ | |
| Standard | IEC 60800 Ed4 | IEC/IEEE 62395-1:2024 |
| Classification | M2 | For installations with higher risk of mechanical damage |
| Deformation test | 1 500N | 1 500N |
| Impact test (at +21°C) | N/A | 7J |
| Cold impact test (at +5°C) | 4J | 16J |
| Tensile test | 300N | 430N |
| resistance to cutting | N/A | 445N |
In conclusion, mechanical strength tests play a pivotal role in ensuring the reliability and longevity of heating cables. By simulating various physical stresses, these tests help manufacturers design cables that are robust, safe, and efficient, providing peace of mind to users across different applications.
Download our flyer with all data about mechanical strength here.