Product Description
Our fire - resistant cable is an outstanding electrical cable meticulously engineered to ensure seamless power transmission and signal conveyance, even under the most extreme fire - related circumstances.
1. Fire - resistance Performance
- The cable's construction incorporates state - of - the - art fire - resistant materials. In the event of a fire, it showcases remarkable resilience to high temperatures over an extended duration. For instance, depending on its specific rating, it can maintain its structural integrity and electrical functionality in temperatures soaring up to [precise high - temperature value] for a minimum of [X] hours. This exceptional performance is crucial as it guarantees that vital electrical systems, including emergency lighting, fire alarm systems, and essential power circuits, remain fully operational during a fire emergency. These systems are often the last line of defense in safeguarding lives and property, and our cable's ability to withstand fire - induced heat is what makes it indispensable in such scenarios.
- Our fire - resistant cable is designed with multiple fire - protection mechanisms. It has special intumescent materials within its structure that expand when exposed to heat. This expansion creates a charred layer that acts as an insulating barrier, preventing the spread of fire along the cable and reducing heat transfer to the internal conductors. This unique feature significantly enhances the cable's fire - resistance capabilities compared to traditional cables.
2. Cable Structure
- At the core of the cable lies a conductor made from high - quality copper or aluminum. Copper conductors are preferred in many applications due to their excellent electrical conductivity and corrosion resistance. The choice between copper and aluminum depends on factors such as cost, current - carrying capacity requirements, and specific application needs.
- Surrounding the conductor is a series of carefully engineered insulation and protection layers. One of the key components is a mineral - based insulation layer. This layer is composed of inorganic materials such as magnesium oxide powder. The mineral insulation offers outstanding thermal stability, capable of withstanding temperatures far beyond those of conventional organic insulations. It not only provides excellent fire - resistance but also has good electrical insulation properties under normal and fire - exposed conditions.
- An outer sheath made of a specialized fire - retardant polymer is an integral part of the cable's structure. This sheath is formulated to resist the spread of flames and has self - extinguishing properties. It is designed to prevent the cable from contributing to the fire's spread by burning or melting. In addition to its fire - retardant properties, the outer sheath also provides mechanical protection to the underlying layers, safeguarding the cable from physical damage during installation and operation.
- In some advanced models of our fire - resistant cable, there may be additional layers for enhanced performance. For example, there could be fire - resistant tapes wound around the insulation layer. These tapes are made from materials that can withstand high temperatures and prevent the penetration of flames. Additionally, electromagnetic shielding layers may be present in cables used in environments where electromagnetic interference is a concern. These shielding layers are usually made from conductive materials such as copper foil or braided wire and help maintain the integrity of the electrical signals transmitted through the cable.
3. Flexibility and Installation
- Despite its robust fire - resistance properties, our cable retains a remarkable degree of flexibility. This flexibility is achieved through careful selection of materials and an optimized cable design. The cable can be easily maneuvered through conduits, cable trays, and around various obstacles during installation. Its flexibility enables efficient installation in a wide range of environments, from the cramped spaces within modern office buildings to the complex layouts of industrial plants and the underground installations of subway systems.
- The cable is available in a diverse range of sizes and configurations to precisely meet the specific requirements of different electrical systems. We offer a comprehensive selection of cable diameters, conductor sizes, and insulation thicknesses. This allows for custom - ordering to fit the exact length, current - carrying capacity, and connection needs of a particular project. Our technical experts can assist in determining the most suitable cable specification based on the specific installation conditions and electrical load requirements.
- During installation, the cable's flexibility also simplifies the process of making bends and turns. It can be bent to tight radii without causing damage to the cable's internal structure or affecting its fire - resistance and electrical performance. This ease of installation reduces labor costs and installation time, making it a preferred choice for contractors and installers.
4. Safety and Compliance
- Our fire - resistant cable complies with all relevant international and national safety standards. It has undergone rigorous testing procedures in accordance with [list a comprehensive range of relevant standards such as IEC 60331 for fire - resistant cables, UL 2196 for electrical power and control tray cables for use in hazardous locations, etc.]. These tests cover various aspects including fire - resistance performance, electrical insulation strength, mechanical strength, and resistance to environmental factors.
- The compliance with these standards ensures that the cable not only provides effective fire - protection but also meets all necessary electrical and safety requirements. This gives end - users the confidence that our cable will perform as expected in real - world fire situations and during normal operation. It also simplifies the approval process for projects, as the use of compliant cables is often a prerequisite for obtaining building permits and meeting regulatory requirements.
- The cable's design and construction are also focused on minimizing potential safety hazards. For example, the materials used are non - toxic and do not emit harmful fumes when exposed to heat, reducing the risk of smoke inhalation during a fire. This aspect is particularly important in enclosed spaces such as basements, tunnels, and crowded buildings where the spread of toxic smoke can be as dangerous as the fire itself.
5. Application Areas
- In commercial buildings, our fire - resistant cable is an essential component for ensuring the safety of occupants. In office complexes, it powers emergency lighting systems that provide illumination during evacuations, allowing people to safely exit the building. In shopping malls, it supplies electricity to fire alarm systems, sprinkler systems, and escalators, ensuring that these life - safety systems remain operational even in the face of a fire. Hotels rely on our cable for powering emergency power generators, elevators, and other critical systems that are vital for guest safety and evacuation.
- Industrial facilities present unique challenges due to the presence of flammable materials, high - temperature processes, and complex electrical systems. Our fire - resistant cable is widely used in factories, power plants, and chemical plants. In factories, it powers machinery control systems, ensuring that production processes can be safely shut down in case of a fire. In power plants, it is used for critical power transmission within the plant, safeguarding the operation of generators and transformers. Chemical plants, with their high fire and explosion risks, depend on our cable to maintain the integrity of electrical systems in hazardous areas, preventing the ignition of flammable substances.
- Transportation infrastructure such as subways, airports, and railway stations require the highest level of safety. In subways, our fire - resistant cable is used for powering trains, lighting systems, and communication systems. In the event of a fire in the confined space of a subway tunnel, the cable's fire - resistance ensures that passengers can be safely evacuated and emergency services can be coordinated. Airports use our cable for powering runway lighting, terminal buildings, and air traffic control systems. Railway stations rely on it for powering signaling systems, platforms, and other essential facilities. The cable's ability to withstand fire in these high - traffic and high - risk environments is crucial for maintaining the safety and functionality of the transportation network.
Product Parameters
1. Conductor
- Material: High - quality copper or aluminum. Copper conductors offer excellent electrical conductivity and better corrosion resistance, while aluminum conductors may be chosen for their lighter weight and cost - effectiveness in certain applications.
- Size: Available in a wide range of cross - sectional areas, typically from [minimum size] to [maximum size] square millimeters. The conductor size is determined based on the cable's current - carrying capacity requirements, with larger conductors used for higher current applications.
2. Insulation
- Type: Mineral - based insulation is commonly used. It consists of inorganic materials such as magnesium oxide powder. This type of insulation provides outstanding thermal stability and fire - resistance properties.
- Thickness: The insulation thickness varies depending on the cable's voltage rating and application requirements. Generally, it ranges from [minimum thickness] to [maximum thickness] millimeters to ensure sufficient electrical insulation and fire - protection.
3. Sheath
- Material: Specialized fire - retardant polymer materials are used for the outer sheath. These materials have self - extinguishing properties and can resist the spread of flames. Commonly used polymers include materials based on [list some common polymer types like halogen - free flame - retardant polyolefin, etc.].
- Thickness: The sheath thickness is usually within the range of [minimum sheath thickness] to [maximum sheath thickness] millimeters to provide adequate mechanical protection and fire - resistance.
4. Rated Voltage
- Our fire - resistant cable is available in different rated voltage levels, including [list common voltage ratings such as 0.6/1kV, 1.8/3kV, etc.]. The rated voltage indicates the maximum voltage that the cable can safely withstand during normal operation.
5. Current - carrying Capacity
- The current - carrying capacity of the cable is specified based on various factors such as conductor size, insulation type, and installation environment. Under standard installation conditions (such as [describe standard conditions like ambient temperature, laying method, etc.]), the cable can carry currents ranging from [minimum current - carrying capacity] to [maximum current - carrying capacity] amperes.
6. Fire - resistance Rating
- The cable has a specific fire - resistance rating, which is determined by standardized fire - testing methods. It can be classified as [list different fire - resistance classes such as Class A, Class B, etc., and briefly describe the corresponding fire - resistance performance and duration under test conditions]. For example, Class A fire - resistant cable may be able to maintain circuit integrity for more than [X] hours in a standard fire test.
7. Flexibility Index
- To measure the cable's flexibility, we use parameters such as minimum bending radius. The minimum bending radius of our fire - resistant cable is typically [X] times the cable's outer diameter. This indicates the cable's ability to be bent without damaging its internal structure or affecting its performance during installation and operation.
8. Temperature Rating
- The cable has a temperature rating that defines the maximum and minimum temperatures within which it can operate safely. The operating temperature range is usually from [minimum operating temperature] to [maximum operating temperature] degrees Celsius. This temperature rating takes into account both normal operation and short - term temperature variations during fire exposure.
Our Advantages
Before production, conduct a circular inspection of the equipment to ensure that the probability of problems occurring at the production end is 0%.
Professional production equipment and strict requirements for product quality are our lifelines.
Conduct self-inspection during production, spot check by batch, and conduct ex-factory inspection after leaving the factory. Conduct product production supervision in strict accordance with steps that far exceed the ISO 9001 quality control standard.
Ultra-large-scale inventory is also one of our advantages.
Not only do we have cables and wires. We are a group company. Under the company, there is a power design institute, a power installation company, a production plant for power distribution boxes and cabinets, a production plant for cable trays and cable accessories, and a production plant for cable conduits. We can provide integrated services from design and research to products and then to construction. If you have any power-related issues, we welcome you to discuss with us. We will do our best to provide a solution. And these services are permanently free of charge!!!
FAQ
1. What is a fire - resistant cable?
- A fire - resistant cable is a type of cable that can maintain its electrical properties and physical integrity for a certain period during a fire. It can continue to transmit power or signals in a high - temperature and flame environment, supply power to critical systems such as fire - fighting, emergency lighting, and important equipment, prevent the spread of fire along the cable, and ensure the safety of personnel and reduce fire losses.
2. What are the types of fire - resistant cables?
- Common ones include mineral - insulated cables (such as magnesium oxide mineral - insulated cables). They use mineral materials for insulation and have excellent fire - resistance properties. There are also flame - retardant cables. Through special materials and designs, these cables have flame - retardant characteristics and slow down the speed of flame propagation. In addition, fire - resistant cables can maintain normal operation within a specified time during a fire to ensure power supply under fire conditions.
3. What is the working principle of fire - resistant cables?
- For mineral - insulated cables, the internal mineral - insulating materials (such as magnesium oxide) have a high melting point and good thermal stability, which can prevent heat from being transferred to the conductor at high temperatures. Flame - retardant cables usually contain flame retardants that produce substances or reactions to prevent combustion when heated. Fire - resistant cables are specially designed in structure and materials. For example, high - temperature - resistant insulating materials and sheaths are used to ensure power supply during a fire for a certain period.
4. Where are fire - resistant cables suitable for use?
- They are suitable for crowded public places such as shopping malls, theaters, hospitals, and schools; industrial sites with high fire safety requirements such as chemical plants and refineries; power supply for key equipment in high - rise buildings such as fire - fighting systems, emergency lighting systems, and elevators; transportation hubs such as airports, railway stations, and subway stations.
5. How is the fire - resistance performance of fire - resistant cables measured?
- It is measured by relevant international and national standards, such as IEC 60331. The main indicators include the time during which the cable maintains normal operation under the specified flame temperature (for example, being able to maintain power supply for 3 hours, 2 hours, etc. at different levels in a 950 °C - 1000 °C flame), and the cable's ability to prevent flame spread, such as the flaming time and non - flaming time.
6. What are the differences between fire - resistant cables and ordinary cables?
- In terms of materials, fire - resistant cables use special fire - resistant and high - temperature - resistant materials, while ordinary cable materials usually do not have such high fire - resistance requirements. In terms of performance, fire - resistant cables have advantages in fire - resistance, fire - endurance, and flame - retardancy. Ordinary cables are easily damaged in a fire environment and cannot ensure power transmission. Structurally, fire - resistant cables may have more protective and insulating layers to enhance fire - resistance performance.
7. How to choose the appropriate fire - resistant cable?
- Consider the fire risk level of the application site. High - risk sites require cables with higher fire - resistance performance. Select the appropriate cable specification according to the required current - carrying capacity and voltage level to meet the requirements of the electrical system. Also consider the flexibility of the cable, the installation environment (such as whether it needs to be bent in a narrow space), and cost factors.
8. What are the special requirements for the installation of fire - resistant cables?
- During installation, pay attention that the bending radius should not be too small to avoid damaging the cable structure and affecting the fire - resistance performance. The cable joints should be properly sealed and fire - protected to prevent the fire from spreading from the joints. The cable should be correctly installed according to the cable laying requirements, such as laying in cable trays or through pipes, to avoid mechanical damage and unreasonable stress on the cable.
9. How long is the service life of fire - resistant cables?
- Under normal use and maintenance conditions, the service life of fire - resistant cables is generally long, which can be 30 - 50 years or even longer. However, if used in harsh environments (such as long - term high - temperature, high - humidity, strong acid - base corrosion, etc.), its life may be shortened, and regular inspection and maintenance are required.
10. What is the price of fire - resistant cables?
- Due to their special materials and performance requirements, fire - resistant cables are usually more expensive than ordinary cables. The price is affected by many factors, including the type of cable (for example, mineral - insulated cables are relatively more expensive), specification (the larger the size and the higher the current - carrying capacity, the higher the price), fire - resistance grade, and brand. Generally speaking, high - quality and high - fire - resistance - grade cables are more expensive.
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