Fire-resistant busbar manufacturers believe that fire-resistant enclosed busbars are not only used as emergency power supply lines when there are problems with the power grid or lines, but also as transmission lines when fires or other disasters occur. Therefore, fire-resistant enclosed busbars must be able to ensure normal transmission at high temperatures. When the ambient temperature reaches above 700°C, the power supply can also be guaranteed to run for more than 1.5 hours, and there will be no short circuit between lines due to the decrease in internal insulation caused by the increase in ambient temperature.
Fire-resistant busbar manufacturers believe that enclosed busbars are composed of current-carrying conductors, shells and insulating materials. The busbar shell should be made of high-quality cold-rolled steel plates with sufficient mechanical strength and a protection level of IP55. The current-carrying conductor should be made of electrical copper materials that meet the GB5585.1-5585.3 standards, and the contact surface of the conductor contact should be specially treated to ensure reliable contact at the connection parts, low heat generation, and safe and reliable use. The insulation material should have good insulation performance, anti-aging, low smoke and other performance indicators.
There are two types of enclosed busbars. One enclosed busbar has a large current carrying capacity, but can only work under 200°C, and is generally installed on the line that transmits municipal power. This type of busbar is also called a dense enclosed busbar. Another type of enclosed busbar can withstand high temperatures. Generally, it can maintain power transmission for 1.5 hours at an ambient temperature of 700 ~ 1000, and the current carrying capacity can reach 5000A. This type of enclosed busbar is called a fire-resistant enclosed busbar.
Fire-resistant busbar manufacturers believe that the difference between fire-resistant enclosed busbars and dense enclosed busbars lies in the outer shell. The outer shell of the fire-resistant enclosed busbar is coated with a layer of fire-retardant paint, and the surface of the sealed enclosed busbar is sprayed with plastic, which is flat and has strong adhesion of the anti-corrosion layer. Therefore, when the fire-fighting line and the emergency power supply line are designed with busbars, fire-resistant enclosed busbars are used. The fire-resistant enclosed busbar requires a large space for installation, and it is inconvenient to turn, but there are fewer accessories during installation. At the same time, the fire-resistant enclosed busbar can prevent the harm of small animals, and it is convenient for future operation and maintenance after installation.
The above are some knowledge points about fire-resistant busbars. I hope you can carefully learn and understand the relevant knowledge and choose products and equipment that suit your needs.
You can browse the relevant product links in our website for more information.
HYDGET BUSBAR PRODUCT
Welcome to contact us
Contact: Ricky Li
Whatsapp: +86 152 5199 6760
Wechat: +86 152 5199 6760
Email: rickyli@hydget.com
