Details of standard requirements for insulation materials of new energy cables

With the rapid development of the new energy industry, new energy cables, as key components of power transmission, have increasingly stringent standard requirements for insulation materials. The following is a detailed analysis of the standard requirements for insulation materials of new energy cables:

1. Physical performance requirements

The physical properties of insulation materials of new energy cables must comply with national standards, mainly including:

Tensile strength: ensure that the cable is not easy to break when stretched by external force, and ensure the stability and safety of the cable.

Elongation at break: reflects the elongation ability of the material before breaking, and is an important indicator for evaluating the flexibility of the material.

Hardness: Appropriate hardness can not only ensure the insulation performance of the cable, but also avoid excessive wear during installation and use.

2. Electrical performance requirements

Electrical performance is the core requirement of insulation materials of new energy cables, mainly including:

Dielectric strength: indicates the ability of the material to withstand the action of the electric field without being broken down, and is a key indicator for evaluating the insulation performance of the cable.

Volume resistivity: reflects the difficulty of charge transfer inside the material. High volume resistivity means that the material has good insulation performance.

Dielectric loss: Under the action of the electric field, part of the electrical energy in the insulating material will be converted into heat or other forms of energy and lost. The smaller the dielectric loss, the higher the transmission efficiency of the cable.

3. Heat resistance requirements

New energy cables may be subjected to higher temperatures during operation, so the heat resistance of the insulating material is crucial. Mainly include:

Long-term use temperature: refers to the maximum temperature that the cable can continuously withstand under normal working conditions. The insulating materials of new energy cables are usually required to have a higher long-term use temperature to meet the needs of different application scenarios.

Short-term overload temperature: In a short period of time, the cable may be subjected to high temperatures exceeding the normal working temperature. The insulating material needs to have a good short-term overload temperature tolerance to ensure the safe operation of the cable.

In summary, the standard requirements for new energy cable insulation materials cover physical properties, electrical properties, heat resistance, environmental aging resistance and other aspects to ensure that the cable can maintain stable insulation performance and good operating conditions in various application scenarios. Please visit: