Busway Products
I. Product Overview
The 180-minute fire-resistant copper busway is a specialized busway intended for fire-fighting equipment power supply. It is suitable for three-phase four-wire and three-phase five-wire power distribution systems with AC 50 Hz, rated voltage below 690 V, and rated current from 250 A to 5000 A. In addition to the conductive function of a normal busway, it must also maintain circuit integrity for a certain period under flame exposure. Its performance complies with the relevant requirements of GB/T 7251.6 and GA/T 537-2005, and it achieves a fire-resistance duration of 180 minutes.
This product can be used continuously in normal environments and for the specified duration in fire conditions. It is suitable for locations with high fire-safety requirements, such as high-rise buildings, large commercial complexes, metro transportation hubs, airport terminals, important control centers, hospitals, and data centers, where it can replace fire-resistant cables for power transmission and distribution. According to relevant fire regulations, when the calculated current of the fire-protection vertical power trunk in a high-rise building is 400 A or above, fire-resistant busway should be used.
II. Core Structural Composition
The 180-minute fire-resistant copper busway consists of three core parts: high-purity copper busbar conductors, a high-performance fire-resistant insulation system, and a high-strength fireproof enclosure.
For the conductor, high-purity electrolytic copper conforming to national standard T2 is drawn into copper busbars with a copper content of no less than 99.90% and electrical resistivity below 0.01777 Ω·mm²/m. The busbars feature a fully rounded edge design and are tin-plated over their full length, which effectively improves oxidation and corrosion resistance, reduces contact resistance, and increases connection reliability. The busbar range covers the full current range from 250 A to 5000 A and can be flexibly configured according to different load requirements.
For the insulation system, the mica tape wrapped around the conductor complies with JB/T5019.20-85 and JB/T6488-1~3-92. The mica tape offers good flexibility, excellent heat resistance, and strong dielectric and mechanical performance under normal conditions, with bending strength ≥ 180 MPa, dielectric strength ≥ 35 kV/mm, and volume resistivity > 10¹⁰ Ω·m. The mica tape still retains high insulation performance at 950°C and remains highly insulating at 600°C. Depending on the required fire-resistance limit, an aluminum-silicate fire-resistant fiber felt (silica cotton) is packed between the conductor and the enclosure. This material contains AL₂O₃ + SiO₂ at 96% and can withstand continuous use at 1050°C and peak use at 1250°C, efficiently isolating external high temperatures from the conductor. The copper busbar is wrapped with multiple layers of synthetic mica tape (typically 10 to 15 layers) to form a multilayer composite insulation structure, ensuring insulation performance remains intact under high temperature.
For the enclosure, a double-layer structure is used: an outer layer of galvanized steel plate more than 2.0 mm thick and an inner layer of fire-resistant thermal insulation. The enclosure surface is derusted, degreased, phosphated, dried, and then electrostatically sprayed with fire-resistant powder, so it will not burn in a flame. The enclosure has inner and outer channel-shaped profiles so that flames cannot directly or indirectly ignite the conductor or damage the insulation, while ensuring the necessary protection level and circuit integrity under spray conditions. The fire-resistant coating on the enclosure begins to foam and expand within 3 to 5 minutes after a fire starts, forming a dense carbonized insulating layer that seals all gaps in the busway enclosure and prevents high temperatures from entering the interior. The side plates on both sides of the enclosure use a double-layer hollow structure, which effectively blocks high-temperature gases or open flames from entering the busway interior.
The product uses a compact sandwich-phase arrangement with closely stacked conductors, giving the busway a compact form, small volume, low impedance, reduced voltage drop, and good dynamic and thermal stability. The joints use special fire-resistant insulating components, offering reliable and convenient connections. The phase insulation blocks and joint partitions are made of ceramic AL₂O₃ material, which has excellent high-temperature resistance and anti-aging performance.
III. Core Performance Features
Extremely high fire resistance. The product passes GA/T 537-2005 tests and maintains circuit integrity for more than 180 minutes under flame exposure. The enclosure and thermal insulation layer of the fire-resistant busway use fire-resistant materials rated for temperatures above 1100°C and insulation materials rated above 300°C. The materials only begin to burn at around 920 to 1050°C, and the system can maintain full-load operation for over 8 hours. The product meets the requirements of a 750°C three-hour burn test and is suitable for applications with very high fire-safety standards. For the power trunk lines of evacuation lighting and smoke exhaust systems in civil buildings over 100 m high, a fire-resistant busway with fire resistance of no less than 950°C and 180 minutes should be used.
Excellent electrical insulation performance. The insulation resistance under normal conditions can reach above 20 MΩ (as required by GB standards). The busway system can withstand 3750 V power-frequency voltage for 1 minute without breakdown or flashover. During long-term operation at rated current, the temperature rise does not exceed 60 K at the connection terminals, 30 K for the metal enclosure, and 40 K on the inner insulating surfaces. Even after a fire, when combustion temperatures rise to 960°C, the busway can still continue normal operation. The insulation layer uses mica tape, which chars into a ceramic-like protective layer at high temperature, greatly improving safety compared with ordinary busway systems that use PVC insulation and are only rated to about 70°C.
High protection with a double-layer enclosure. The enclosure uses cold-formed thin steel profiles and can achieve an IP54 to IP67 protection rating. The double-layer hollow structure effectively prevents high-temperature gases or open flames from entering the busway. The enclosure surface is galvanized and coated with fire-resistant paint; when exposed to fire, the coating quickly expands to form a dense carbonized insulating layer that seals all gaps and blocks heat from entering the busway interior.
Excellent mechanical and corrosion resistance. The enclosure is made of high-quality steel plate over 2.0 mm thick, with high structural strength and load-bearing capacity. It passes salt spray tests and offers reliable protection. The product meets relevant seismic requirements and can ensure power supply safety under extreme conditions such as earthquakes.
Good dynamic and thermal stability. Using a sandwich-phase stacked structure, the busway offers low impedance, reduced voltage drop, and good dynamic and thermal stability. The copper busbars are closely arranged and tightly bonded to the side plates, effectively reducing temperature rise.
Full range of specifications and flexible adaptation. The product is available in current ratings of 250 A, 400 A, 630 A, 800 A, 1000 A, 1250 A, 1600 A, 2000 A, 2500 A, 3150 A, 4000 A, and 5000 A, and can be configured as three-wire, four-wire, or five-wire systems. Standard segment lengths vary by current rating, making them convenient for field installation and transportation.
Easy installation and maintenance. The product uses a modular design, with all components prefabricated so that only simple on-site connections are needed. The joints are reliable and convenient, and use specialized fire-resistant insulating components.
Safe and environmentally friendly. The product complies with RoHS/REACH standards and does not release toxic gases in high-temperature fire conditions, ensuring safe evacuation.
IV. Core Manufacturing Process Features
The 180-minute fire-resistant copper busway incorporates advanced manufacturing technologies and strict process control to ensure precision, reliability, and consistency.
Automated processing. Jiuwei Busway uses automated punching, bending, and welding equipment with precise measurement systems to keep processing accuracy within ±0.5 mm. Steel plate cutting, punching, and bending processes are tightly controlled to ensure accurate enclosure dimensions and robust structure.
Conductor surface treatment. The copper busbars are tin-plated to remove surface oxidation, improve electrical contact performance, and reduce contact resistance. Cutting, punching, and surface treatment are strictly controlled to ensure accurate dimensions and smooth, burr-free surfaces.
Multi-layer mica tape wrapping. The copper busbar is wrapped with multiple layers of synthetic mica tape (typically 10 to 15 layers), wound evenly and tightly to ensure the insulation layer is free of bubbles and wrinkles. The winding process uses automated equipment to control tension and layer count, ensuring consistent insulation quality for each busbar. The wrapped busbars undergo pressure and insulation resistance tests to confirm they meet performance standards.
Thermal insulation filling. An aluminum-silicate fire-resistant fiber felt (silica cotton) is packed between the conductor and enclosure. This material contains 96% AL₂O₃ + SiO₂ and can withstand continuous use at 1050°C. The packing process is carefully controlled to ensure density and uniformity, leaving no voids and effectively blocking external heat from reaching the conductor.
Fire-resistant coating spraying. After rust removal, degreasing, and phosphating, the enclosure is coated with fire-resistant powder or paint using electrostatic spraying to form an even layer. The coating thickness is precisely controlled so that it expands rapidly during a fire to form a dense carbonized thermal insulation layer. The fire-resistant coating meets the requirements of GB14907-94.
Double-layer hollow enclosure forming. The side plates on both sides of the enclosure use a unique double-layer hollow structure formed by precision rolling. This structure blocks high-temperature gases or open flames from entering the busway while also increasing mechanical strength.
Modular design and factory prefabrication. Before shipment, the product is fabricated into straight sections, bends, T-sections, and busbar heads based on the actual engineering layout. This makes on-site installation convenient; only simple connections are needed.
Comprehensive quality control. Quality testing includes electrical performance tests (such as withstand voltage and insulation resistance measurement), mechanical strength tests, and fire-resistance verification. The product passes CCC type testing and fire-resistance verification based on GA/T 537-2005. Contact resistance testers are used to control joint contact resistance and ensure that joint temperature rise meets relevant standards.
V. Diverse Application Scenarios
The 180-minute fire-resistant copper busway is widely used in important facilities with strict requirements for fire-safety power continuity and reliability.
(1) Super-tall and high-rise buildings
The fire-protection systems of super-tall and high-rise buildings require extremely high power reliability. For evacuation lighting and smoke exhaust systems in civil buildings over 100 m tall, a fire-resistant busway with no less than 950°C and 180-minute resistance should be used. The feeder lines for fire-control rooms, fire elevators, and fire pumps also require high fire-resistance standards. When the calculated current of a vertical fire-protection distribution trunk in a high-rise building is 400 A or above, fire-resistant busway should be used. Installed vertically in electrical shafts, it serves as the main feeder for fire loads, ensuring that critical equipment such as fire pumps, sprinkler systems, smoke exhaust fans, emergency lighting, and fire elevators can continue operating for over 180 minutes during a fire.
(2) Large commercial complexes and public places
Large shopping centers, commercial plazas, and hotels have very strict fire-safety requirements. The 180-minute fire-resistant copper busway provides reliable power protection for their fire-protection systems. Equipment such as fire shutters, smoke exhaust systems, emergency lighting, and fire alarm systems require highly reliable feeder lines. The compact structure of fire-resistant busway can be concealed within the building structure without affecting the aesthetics of the commercial space. Its modular design also allows flexible adjustment of power distribution solutions based on the layout. In densely occupied public spaces, the safety and environmental advantages of fire-resistant busway are especially important: under fire conditions it does not release toxic gases, helping protect safe evacuation routes.
(3) Metro and rail transportation
Metro stations are high-traffic public places. In the event of a fire, the reliability of the power system is directly related to passenger safety. Equipment such as signaling systems, ventilation systems, platform screen doors, emergency lighting, and escalators requires a highly reliable power supply. The 180-minute fire-resistant copper busway can maintain power in the fire environment of metro tunnels and stations, ensuring that emergency equipment and evacuation systems continue to function. The product is widely used in metro systems and other high-traffic public facilities with high fire-safety requirements. Its double-layer enclosure and fire-insulation layer effectively resist high temperatures and smoke in tunnel environments.
(4) Airport terminals and transportation hubs
Airport terminals are ultra-large public buildings with dense occupancy and many devices, so fire-protection power systems must meet very high standards. Security equipment, baggage handling systems, information centers, emergency lighting, air-conditioning systems, and fire pumps all require reliable fire-power support. The 180-minute fire-resistant copper busway can guarantee continuous power to critical equipment during a fire, ensuring orderly evacuation and smooth firefighting operations. The product has already been successfully used in multiple airport terminal projects in China.
(5) Hospitals and medical facilities
Large general hospitals place extremely high demands on the stability and safety of their power systems, especially in operating rooms, ICU units, imaging departments, and other critical areas. Any power outage could endanger patients’ lives. The hospital fire-distribution system must satisfy the power needs of first-class loads. The 180-minute fire-resistant copper busway provides highly reliable power protection for hospital fire pumps, smoke extraction systems, emergency lighting, and backup power supplies for medical equipment. The high fire resistance and low smoke toxicity of fire-resistant busway help prevent secondary harm to patients and medical staff during fires.
(6) Data centers and information infrastructure
Data centers require extremely high stability and reliability of power systems, and because their equipment is dense and valuable, fire risk control is especially important. Fire-protection systems, emergency lighting, cooling systems, and security systems in data centers all need highly reliable power supply. The 180-minute fire-resistant copper busway provides up to 180 minutes of continuous power to fire loads in data centers, ensuring that fire-protection systems can operate normally during a fire and protecting data assets to the greatest extent possible. Its compact structure makes it easy to route and install within data center rooms.
(7) Stadiums and large public facilities
Stadiums need to provide high-capacity power to fire-protection systems, emergency lighting, broadcasting systems, and other loads. With large crowds during events, fire safety is especially important. The 180-minute fire-resistant copper busway provides stable and reliable power to stadium fire-protection equipment, ensuring that critical devices such as fire pumps, smoke exhaust systems, and emergency lighting continue to run in emergencies. Its modular design also makes rapid installation possible and is suitable for stadium projects with tight schedules.
(8) Important control centers and emergency command centers
Important control sites, such as fire-control rooms, emergency command centers, and urban management platforms, have extremely high requirements for power reliability. These locations must continue operating during fires and other emergencies to support firefighting and emergency management. The 180-minute fire-resistant copper busway provides highly reliable feeder lines for fire loads in these important facilities, ensuring that critical systems such as communication, monitoring, and dispatch equipment remain functional during a fire.
(9) Industrial plants and petrochemical enterprises
Large industrial plants and petrochemical enterprises contain many flammable and explosive materials, so fire risk is relatively high. Their fire-protection systems require highly reliable power supply. The 180-minute fire-resistant copper busway, with excellent fire resistance and impact resistance, can ensure continuous power to fire pumps, foam systems, emergency lighting, and other equipment during a fire. It has already been successfully used in fire-distribution systems for petrochemical, steel, and metallurgy industries.
(10) Connection lines from diesel generators to distribution cabinets
As required by GA/T 537-2005, fire-resistant busway can be used in emergency power lines connecting diesel generators to distribution cabinets and from distribution cabinets to branch distribution cabinets. During a fire, the diesel generator set starts as an emergency source, and the fire-resistant busway ensures that emergency power is safely delivered to fire loads at the terminal end, maintaining continuous operation of fire-protection equipment.
The 180-minute fire-resistant copper busway is a specialized busway intended for fire-fighting equipment power supply. It is suitable for three-phase four-wire and three-phase five-wire power distribution systems with AC 50 Hz, rated voltage below 690 V, and rated current from 250 A to 5000 A. In addition to the conductive function of a normal busway, it must also maintain circuit integrity for a certain period under flame exposure. Its performance complies with the relevant requirements of GB/T 7251.6 and GA/T 537-2005, and it achieves a fire-resistance duration of 180 minutes.
This product can be used continuously in normal environments and for the specified duration in fire conditions. It is suitable for locations with high fire-safety requirements, such as high-rise buildings, large commercial complexes, metro transportation hubs, airport terminals, important control centers, hospitals, and data centers, where it can replace fire-resistant cables for power transmission and distribution. According to relevant fire regulations, when the calculated current of the fire-protection vertical power trunk in a high-rise building is 400 A or above, fire-resistant busway should be used.
II. Core Structural Composition
The 180-minute fire-resistant copper busway consists of three core parts: high-purity copper busbar conductors, a high-performance fire-resistant insulation system, and a high-strength fireproof enclosure.
For the conductor, high-purity electrolytic copper conforming to national standard T2 is drawn into copper busbars with a copper content of no less than 99.90% and electrical resistivity below 0.01777 Ω·mm²/m. The busbars feature a fully rounded edge design and are tin-plated over their full length, which effectively improves oxidation and corrosion resistance, reduces contact resistance, and increases connection reliability. The busbar range covers the full current range from 250 A to 5000 A and can be flexibly configured according to different load requirements.
For the insulation system, the mica tape wrapped around the conductor complies with JB/T5019.20-85 and JB/T6488-1~3-92. The mica tape offers good flexibility, excellent heat resistance, and strong dielectric and mechanical performance under normal conditions, with bending strength ≥ 180 MPa, dielectric strength ≥ 35 kV/mm, and volume resistivity > 10¹⁰ Ω·m. The mica tape still retains high insulation performance at 950°C and remains highly insulating at 600°C. Depending on the required fire-resistance limit, an aluminum-silicate fire-resistant fiber felt (silica cotton) is packed between the conductor and the enclosure. This material contains AL₂O₃ + SiO₂ at 96% and can withstand continuous use at 1050°C and peak use at 1250°C, efficiently isolating external high temperatures from the conductor. The copper busbar is wrapped with multiple layers of synthetic mica tape (typically 10 to 15 layers) to form a multilayer composite insulation structure, ensuring insulation performance remains intact under high temperature.
For the enclosure, a double-layer structure is used: an outer layer of galvanized steel plate more than 2.0 mm thick and an inner layer of fire-resistant thermal insulation. The enclosure surface is derusted, degreased, phosphated, dried, and then electrostatically sprayed with fire-resistant powder, so it will not burn in a flame. The enclosure has inner and outer channel-shaped profiles so that flames cannot directly or indirectly ignite the conductor or damage the insulation, while ensuring the necessary protection level and circuit integrity under spray conditions. The fire-resistant coating on the enclosure begins to foam and expand within 3 to 5 minutes after a fire starts, forming a dense carbonized insulating layer that seals all gaps in the busway enclosure and prevents high temperatures from entering the interior. The side plates on both sides of the enclosure use a double-layer hollow structure, which effectively blocks high-temperature gases or open flames from entering the busway interior.
The product uses a compact sandwich-phase arrangement with closely stacked conductors, giving the busway a compact form, small volume, low impedance, reduced voltage drop, and good dynamic and thermal stability. The joints use special fire-resistant insulating components, offering reliable and convenient connections. The phase insulation blocks and joint partitions are made of ceramic AL₂O₃ material, which has excellent high-temperature resistance and anti-aging performance.
III. Core Performance Features
Extremely high fire resistance. The product passes GA/T 537-2005 tests and maintains circuit integrity for more than 180 minutes under flame exposure. The enclosure and thermal insulation layer of the fire-resistant busway use fire-resistant materials rated for temperatures above 1100°C and insulation materials rated above 300°C. The materials only begin to burn at around 920 to 1050°C, and the system can maintain full-load operation for over 8 hours. The product meets the requirements of a 750°C three-hour burn test and is suitable for applications with very high fire-safety standards. For the power trunk lines of evacuation lighting and smoke exhaust systems in civil buildings over 100 m high, a fire-resistant busway with fire resistance of no less than 950°C and 180 minutes should be used.
Excellent electrical insulation performance. The insulation resistance under normal conditions can reach above 20 MΩ (as required by GB standards). The busway system can withstand 3750 V power-frequency voltage for 1 minute without breakdown or flashover. During long-term operation at rated current, the temperature rise does not exceed 60 K at the connection terminals, 30 K for the metal enclosure, and 40 K on the inner insulating surfaces. Even after a fire, when combustion temperatures rise to 960°C, the busway can still continue normal operation. The insulation layer uses mica tape, which chars into a ceramic-like protective layer at high temperature, greatly improving safety compared with ordinary busway systems that use PVC insulation and are only rated to about 70°C.
High protection with a double-layer enclosure. The enclosure uses cold-formed thin steel profiles and can achieve an IP54 to IP67 protection rating. The double-layer hollow structure effectively prevents high-temperature gases or open flames from entering the busway. The enclosure surface is galvanized and coated with fire-resistant paint; when exposed to fire, the coating quickly expands to form a dense carbonized insulating layer that seals all gaps and blocks heat from entering the busway interior.
Excellent mechanical and corrosion resistance. The enclosure is made of high-quality steel plate over 2.0 mm thick, with high structural strength and load-bearing capacity. It passes salt spray tests and offers reliable protection. The product meets relevant seismic requirements and can ensure power supply safety under extreme conditions such as earthquakes.
Good dynamic and thermal stability. Using a sandwich-phase stacked structure, the busway offers low impedance, reduced voltage drop, and good dynamic and thermal stability. The copper busbars are closely arranged and tightly bonded to the side plates, effectively reducing temperature rise.
Full range of specifications and flexible adaptation. The product is available in current ratings of 250 A, 400 A, 630 A, 800 A, 1000 A, 1250 A, 1600 A, 2000 A, 2500 A, 3150 A, 4000 A, and 5000 A, and can be configured as three-wire, four-wire, or five-wire systems. Standard segment lengths vary by current rating, making them convenient for field installation and transportation.
Easy installation and maintenance. The product uses a modular design, with all components prefabricated so that only simple on-site connections are needed. The joints are reliable and convenient, and use specialized fire-resistant insulating components.
Safe and environmentally friendly. The product complies with RoHS/REACH standards and does not release toxic gases in high-temperature fire conditions, ensuring safe evacuation.
IV. Core Manufacturing Process Features
The 180-minute fire-resistant copper busway incorporates advanced manufacturing technologies and strict process control to ensure precision, reliability, and consistency.
Automated processing. Jiuwei Busway uses automated punching, bending, and welding equipment with precise measurement systems to keep processing accuracy within ±0.5 mm. Steel plate cutting, punching, and bending processes are tightly controlled to ensure accurate enclosure dimensions and robust structure.
Conductor surface treatment. The copper busbars are tin-plated to remove surface oxidation, improve electrical contact performance, and reduce contact resistance. Cutting, punching, and surface treatment are strictly controlled to ensure accurate dimensions and smooth, burr-free surfaces.
Multi-layer mica tape wrapping. The copper busbar is wrapped with multiple layers of synthetic mica tape (typically 10 to 15 layers), wound evenly and tightly to ensure the insulation layer is free of bubbles and wrinkles. The winding process uses automated equipment to control tension and layer count, ensuring consistent insulation quality for each busbar. The wrapped busbars undergo pressure and insulation resistance tests to confirm they meet performance standards.
Thermal insulation filling. An aluminum-silicate fire-resistant fiber felt (silica cotton) is packed between the conductor and enclosure. This material contains 96% AL₂O₃ + SiO₂ and can withstand continuous use at 1050°C. The packing process is carefully controlled to ensure density and uniformity, leaving no voids and effectively blocking external heat from reaching the conductor.
Fire-resistant coating spraying. After rust removal, degreasing, and phosphating, the enclosure is coated with fire-resistant powder or paint using electrostatic spraying to form an even layer. The coating thickness is precisely controlled so that it expands rapidly during a fire to form a dense carbonized thermal insulation layer. The fire-resistant coating meets the requirements of GB14907-94.
Double-layer hollow enclosure forming. The side plates on both sides of the enclosure use a unique double-layer hollow structure formed by precision rolling. This structure blocks high-temperature gases or open flames from entering the busway while also increasing mechanical strength.
Modular design and factory prefabrication. Before shipment, the product is fabricated into straight sections, bends, T-sections, and busbar heads based on the actual engineering layout. This makes on-site installation convenient; only simple connections are needed.
Comprehensive quality control. Quality testing includes electrical performance tests (such as withstand voltage and insulation resistance measurement), mechanical strength tests, and fire-resistance verification. The product passes CCC type testing and fire-resistance verification based on GA/T 537-2005. Contact resistance testers are used to control joint contact resistance and ensure that joint temperature rise meets relevant standards.
V. Diverse Application Scenarios
The 180-minute fire-resistant copper busway is widely used in important facilities with strict requirements for fire-safety power continuity and reliability.
(1) Super-tall and high-rise buildings
The fire-protection systems of super-tall and high-rise buildings require extremely high power reliability. For evacuation lighting and smoke exhaust systems in civil buildings over 100 m tall, a fire-resistant busway with no less than 950°C and 180-minute resistance should be used. The feeder lines for fire-control rooms, fire elevators, and fire pumps also require high fire-resistance standards. When the calculated current of a vertical fire-protection distribution trunk in a high-rise building is 400 A or above, fire-resistant busway should be used. Installed vertically in electrical shafts, it serves as the main feeder for fire loads, ensuring that critical equipment such as fire pumps, sprinkler systems, smoke exhaust fans, emergency lighting, and fire elevators can continue operating for over 180 minutes during a fire.
(2) Large commercial complexes and public places
Large shopping centers, commercial plazas, and hotels have very strict fire-safety requirements. The 180-minute fire-resistant copper busway provides reliable power protection for their fire-protection systems. Equipment such as fire shutters, smoke exhaust systems, emergency lighting, and fire alarm systems require highly reliable feeder lines. The compact structure of fire-resistant busway can be concealed within the building structure without affecting the aesthetics of the commercial space. Its modular design also allows flexible adjustment of power distribution solutions based on the layout. In densely occupied public spaces, the safety and environmental advantages of fire-resistant busway are especially important: under fire conditions it does not release toxic gases, helping protect safe evacuation routes.
(3) Metro and rail transportation
Metro stations are high-traffic public places. In the event of a fire, the reliability of the power system is directly related to passenger safety. Equipment such as signaling systems, ventilation systems, platform screen doors, emergency lighting, and escalators requires a highly reliable power supply. The 180-minute fire-resistant copper busway can maintain power in the fire environment of metro tunnels and stations, ensuring that emergency equipment and evacuation systems continue to function. The product is widely used in metro systems and other high-traffic public facilities with high fire-safety requirements. Its double-layer enclosure and fire-insulation layer effectively resist high temperatures and smoke in tunnel environments.
(4) Airport terminals and transportation hubs
Airport terminals are ultra-large public buildings with dense occupancy and many devices, so fire-protection power systems must meet very high standards. Security equipment, baggage handling systems, information centers, emergency lighting, air-conditioning systems, and fire pumps all require reliable fire-power support. The 180-minute fire-resistant copper busway can guarantee continuous power to critical equipment during a fire, ensuring orderly evacuation and smooth firefighting operations. The product has already been successfully used in multiple airport terminal projects in China.
(5) Hospitals and medical facilities
Large general hospitals place extremely high demands on the stability and safety of their power systems, especially in operating rooms, ICU units, imaging departments, and other critical areas. Any power outage could endanger patients’ lives. The hospital fire-distribution system must satisfy the power needs of first-class loads. The 180-minute fire-resistant copper busway provides highly reliable power protection for hospital fire pumps, smoke extraction systems, emergency lighting, and backup power supplies for medical equipment. The high fire resistance and low smoke toxicity of fire-resistant busway help prevent secondary harm to patients and medical staff during fires.
(6) Data centers and information infrastructure
Data centers require extremely high stability and reliability of power systems, and because their equipment is dense and valuable, fire risk control is especially important. Fire-protection systems, emergency lighting, cooling systems, and security systems in data centers all need highly reliable power supply. The 180-minute fire-resistant copper busway provides up to 180 minutes of continuous power to fire loads in data centers, ensuring that fire-protection systems can operate normally during a fire and protecting data assets to the greatest extent possible. Its compact structure makes it easy to route and install within data center rooms.
(7) Stadiums and large public facilities
Stadiums need to provide high-capacity power to fire-protection systems, emergency lighting, broadcasting systems, and other loads. With large crowds during events, fire safety is especially important. The 180-minute fire-resistant copper busway provides stable and reliable power to stadium fire-protection equipment, ensuring that critical devices such as fire pumps, smoke exhaust systems, and emergency lighting continue to run in emergencies. Its modular design also makes rapid installation possible and is suitable for stadium projects with tight schedules.
(8) Important control centers and emergency command centers
Important control sites, such as fire-control rooms, emergency command centers, and urban management platforms, have extremely high requirements for power reliability. These locations must continue operating during fires and other emergencies to support firefighting and emergency management. The 180-minute fire-resistant copper busway provides highly reliable feeder lines for fire loads in these important facilities, ensuring that critical systems such as communication, monitoring, and dispatch equipment remain functional during a fire.
(9) Industrial plants and petrochemical enterprises
Large industrial plants and petrochemical enterprises contain many flammable and explosive materials, so fire risk is relatively high. Their fire-protection systems require highly reliable power supply. The 180-minute fire-resistant copper busway, with excellent fire resistance and impact resistance, can ensure continuous power to fire pumps, foam systems, emergency lighting, and other equipment during a fire. It has already been successfully used in fire-distribution systems for petrochemical, steel, and metallurgy industries.
(10) Connection lines from diesel generators to distribution cabinets
As required by GA/T 537-2005, fire-resistant busway can be used in emergency power lines connecting diesel generators to distribution cabinets and from distribution cabinets to branch distribution cabinets. During a fire, the diesel generator set starts as an emergency source, and the fire-resistant busway ensures that emergency power is safely delivered to fire loads at the terminal end, maintaining continuous operation of fire-protection equipment.