fire resistant insulation material

good insulation material

Today, I would like to share with you the knowledge of insulating materials, mainly about the classification of the fire-resistant grades of insulating materials. I hope that you can have a better understanding through the introduction of this article.

With the development of technology, various new high-tech products have been applied in many fields. Insulating materials, which are commonly used as materials in many electrical devices, are now also widely used. Insulation materials used in many of our products are closely related to their insulation properties and temperature. The higher the temperature, the poorer the insulating properties of the insulating material. Due to the different fields of application of insulating materials, a maximum permissible operating temperature range is set for each different type of material. Only in the corresponding temperature range, the insulation material can exert its insulation performance, and provide guarantee for the normal operation of the equipment. Once the operating temperature exceeds this range, the insulation material will quickly age, lose its original effect, affect the normal operation of the equipment or even damage the equipment.

fire resistant insulation material

According to the heat-resistant degree of insulation material, it can be divided into seven grades: Y, A, E, B, F, H, C, etc. The temperature range that each different grade material can withstand is: Y-class insulation temperature is 90 degrees, Class A insulation temperature resistance is 105 degrees, E class insulation temperature is 120 degrees, Class B insulation temperature is 130 degrees, Class F insulation is 155 degrees, Class H insulation is 180 degrees, Class C The insulation temperature is 200 degrees or more. Many products are marked with a heat-resistant rating for all products prior to shipping, explaining the precautions during operation. However, we must also note that it is not the marked temperature limits that apply to each insulation material. Like some of the long-term use, material incompatibility or damage, etc., the temperature tolerance of the insulation material may decrease. It is also possible to increase the withstand temperature of the original insulation material because of the protection of other materials in the device. Therefore, when used in peacetime, we also need to consider the actual situation, in order to ensure that the temperature limit of the insulation material is not exceeded, the operating conditions of the equipment are adjusted.

About “Classification and Application of Insulating Materials for Fire-Resistance Rating”, we will introduce this to you. If you think that the articles I have shared will help you, please continue to pay attention to us. Remember to contact me when you need transformers and insulation. In China’s insulation material manufacturers and suppliers, we have a strong strength and passed the international quality certification. Looking forward to your Email. My email is

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