The difference between flame retardant and fire-resistant cables.
所属分类： Industry Trends
2025-01-06
The main differences between flame-retardant cables and fire-resistant cables lie in their definitions, working principles, structures and materials, and usage scenarios.
Definition and Working Principle
Flame-retardant cable: A flame-retardant cable refers to a cable that can extinguish itself after the flame is removed under specified test conditions. Its flame-retardant performance mainly relies on the characteristics of the sheath material, and it is divided into halogen-containing flame-retardant cables and halogen-free flame-retardant cables. Halogen-containing flame-retardant cables rely on the flame-retardant effect of halogens, while halogen-free flame-retardant cables extinguish the fire source by releasing water to lower the temperature.
Fire-resistant cable: A fire-resistant cable can maintain normal operation for a certain period under flame conditions, ensuring that the power system continues to operate in emergencies. Its fire-resistant layer is usually made of multiple layers of mica tape directly wrapped around the conductor, which can maintain the integrity of the circuit at high temperatures.
Structure and Materials
Flame-retardant cable: Its basic structure includes insulation layer, sheath, and outer protective layer, all made of flame-retardant materials. The sheath material of flame-retardant cables can slow down the spread of fire during a fire, but it may not necessarily maintain electrical connectivity during a fire.
Fire-resistant cable: An additional fire-resistant layer is added between the conductor and the insulation layer, usually made of mica material. This structure allows fire-resistant cables to maintain normal operation for a long time in flames, ensuring normal operation of the circuit even if the outer layer material is burned.
Usage Scenarios
Flame-retardant cable: Widely used in homes, shopping malls, factories, and other places with high flame-retardant requirements. It can effectively prevent the spread of fire, protect property and equipment, and avoid greater losses.
Fire-resistant cable: Mainly used in high-rise buildings, underground railways, nuclear power plants, and important industrial and mining enterprises that need to maintain power supply. For example, power supply lines for emergency power sources, fire-fighting equipment, signal lights, and ventilation and smoke exhaust equipment.
Advantages and Disadvantages
Flame-retardant cable: The advantage is that it has a lower cost and can effectively prevent the spread of fire, reducing fire losses. The disadvantage is that it cannot maintain electrical connectivity during a fire.
Fire-resistant cable: The advantage is that it can maintain power supply during a fire, ensuring the normal operation of the power system in emergencies. The disadvantage is that it is more expensive, and in some cases, flame-retardant cables can be used as a substitute, but flame-retardant cables cannot replace fire-resistant cables.
上一条： Common Cable Models
RELATED INFORMATION
When selecting the cross-section of power cables, what regulations should be followed?
The rated voltage of the cable must be greater than or equal to the rated voltage of the power supply system at the installation point; the continuous allowable current of the cable should be equal to or greater than the maximum continuous current of the power load.
View Details2025/01/14
Pay attention to the official public number
Or search for "Lushan Cable"
More wonderful waiting for you!
Address: 297 Lushan South Road, Chaisang District, Jiujiang City
Sales Phone:13161366990;0792-6812188
E-mail:249904974@qq.com
Copyright©2024 All Rights Reserved Copyright Jiangxi Lushan Cable Co., Ltd.
Website construction:www.300.cn
SAF Coolest v1.3 设置面板 GAGSD-AGYF-JAAAE-SFS
无数据提示
Sorry, the current column has no content for the time being.!
You can view other columns or returnHome Page