Applications and Advantages of Fire-Resistant Busbar Trunking
Release Time:
Jul 15,2021
The decoration of important public places such as modern office buildings, hotels, restaurants, stations, stadiums, and public facilities is becoming increasingly luxurious, and more and more combustibles are being used; large, medium, and small cities are building subway lines, and these important public places and civil buildings require that in the event of a fire, power lines, cables, and fire-resistant busbar trunking can continuously supply power, transmit escape signals for personnel, and activate automatic alarms, fire-fighting facilities, rescue, and emergency control signals and alarm signals, providing valuable time. Fire-resistant busbar trunking and other power supply trunk line equipment are designed to ensure that the lines remain energized for a certain period of time. When a fire occurs,
Modern office buildings, hotels, restaurants, stations, sports venues, and other important public places are becoming increasingly luxurious, using more and more combustible materials; large, medium, and small cities are building subway lines. Important public places and civil buildings like these require that in the event of a fire, power lines, cables, and fire-resistant busbarstrunkingand other trunk lines can continuously deliver power and transmit various control signals and alarm signals for personnel escape, automatic alarms, fire-fighting equipment activation, rescue, and emergency response, providing valuable time. Fire-resistant busbarstrunkingThese power supply trunk line devices are designed to ensure that the lines remain energized for a certain period of time。during a fire, transmitting various control signals and alarm signals. To ensure that emergency equipment such as passageway lighting, emergency broadcasts, fire alarm devices, and automatic fire-fighting facilities remain powered during a fire, allowing for timely evacuation and the smooth execution of rescue operations. Therefore,Fire-resistant busbar trunkingreliability is crucial.
The load current of the trunk lines is mostlyabove 315A (cables 185mm² and above). If multiple cables are used,they need to becombined. When there are multiple cables of the same phase in a circuit, compared to the performance of fire-resistant busbars,trunkingthere are the following advantages and disadvantages in terms of cost-effectiveness:
1、Fire-resistant busbarstrunkinghave a more accurate actual carrying capacity than cables
The carrying current of busbar trunking is determined and verified through energized tests (temperature rise tests). Users only need to check the temperature rise to ensure the accurate and reliable carrying capacity of the busbar trunking. Cable carrying capacity data is always inaccurate.
2、For fire-resistant busbars with the same load capacity,trunkingcopper resources are reduced by10%~50%;
3、For load trunk lines with the same rated current, the cost of busbar trunking is lower than that of cables by5%~35%;
4、Service life: The service life of cables is approximately18-25 years, while busbar trunking often reaches more than 50 years;
5、The production and recycling of cables will inevitably pollute the environment; fire-resistant busbarstrunkingare green and environmentally friendly in production and recycling;
6、Construction and maintenance: When the current is large, busbar trunking is more convenient than cables;
7、Depreciation rate: Busbar trunking is lower than cables, only30%~50% of cables;
8、Fire-resistant busbarstrunkingSpare branch sockets can be reserved for convenient branch current。
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