What is Fire Resistant Cable?
Fire resistant cable is a special wire. It is different from normal wire. Normal wire stops working when it gets hot. It melts easily. But fire resistant cable does not stop. It keeps sending electricity even in a big fire. This is very important for safety. When a fire starts, you need lights. You need alarms. You need pumps to work. This cable makes sure they work. It buys time for people to leave the building. It helps fire fighters do their job. We make this cable for your projects. It is strong and reliable.
How Does It Work?
This cable has a special inside. The conductor is copper. Copper is great for electricity. Around the copper, there is a special layer. It is called mica tape. Mica is a mineral. It does not burn easily. It can handle very high heat. Under the mica, there is insulation. We use mineral wool or special rubber. This mix stops the fire from breaking the circuit.
The cable has a shield. The shield is steel wire or copper tape. It protects the inside. It also stops water if you use a fire hose. The outer jacket is PVC or LSZH. LSZH means Low Smoke Zero Halogen. It makes very little smoke. It is safe for people inside. The structure is simple but smart. It traps the heat inside. It keeps the core cool enough to work.
Key Technical Specifications
Here are the details of our standard fire resistant cable. We can change these based on your needs.
Voltage and Size
- Rated Voltage: 0.6/1kV (600V/1000V). We also do 1.8/3kV for high power.
- Conductor: Solid or stranded copper. It is plain annealed.
- Sizes: 1.5mm², 2.5mm², 4mm², 6mm², 10mm², 16mm², 25mm², 35mm², 50mm², and bigger.
- Cores: 1 core, 2 core, 3 core, 3+E, 4 core, 4+E, 5 core.
Material Details
- Insulation: XLPE or Mineral Insulation (MI).
- Bedding: Mica tape overlap. It is 50% or 100% coverage.
- Armor: Galvanized Steel Wire (SWA) or Steel Tape (STA).
- Sheath: Red PVC or Orange LSZH. The color shows it is for fire use.
Performance Data
- Max Temp: 70°C for normal use. It can go to 160°C in a fire for a short time.
- Min Bend: 12 times the cable diameter. It is easy to install.
- Fire Test: It passes BS 6387. It also passes IEC 60331.
The Fire Test Standards
We follow strict rules. The UK uses BS 6387. Europe uses IEC 60331. These tests are hard to pass. But our cable does it easily.
The “C” Test (Fire Only)
We put the cable in a fire. The temperature is high. It is about 750°C to 800°C. We hit it with water spray. The cable must keep working. It must not break. This test lasts 3 hours.
The “W” Test (Water Spray)
This test adds water. The fire is hot. Water hits the cable directly. This simulates fire fighters using hoses. The cable insulation must not crack. The electricity must stay on.
The “Z” Test (Vibration)
This is the hardest test. The cable is in fire. We shake it hard. This happens when a building collapses or a bridge moves. The cable must not short circuit. It must stay strong under stress.
Where to Use This Cable?
You need this cable in public places. Safety is the top rule there.
High Buildings
Skyscrapers are tall. It is hard to leave fast. You need strong fire systems. Use this cable for emergency lights. Use it for smoke exhaust fans. Use it for fire pumps. It keeps the power on until everyone is out.
Subways and Tunnels
Tunnels are closed spaces. If a train catches fire, smoke is deadly. Our LSZH cable makes very little smoke. It is non-toxic. It is perfect for subway lighting and signals. It works underground where air is limited.
Power Plants and Factories
Factories have expensive machines. Fire can destroy them. Use fire resistant cable for control circuits. It stops the machines from going crazy during a fire. It also powers the shutdown systems. This saves the factory from total damage.
Hospitals and Schools
Hospitals have sick people. They cannot move fast. Schools have kids. You need safe cables. Our cable does not release acid gas. It keeps the life support machines running. It keeps the fire alarms loud.
Why Choose Our Factory?
We are a real factory in China. We make cables for export. We know what you need in the US, UK, and Australia.
Quality Control
We check every meter. We test the copper purity. We check the mica tape thickness. We do fire tests on samples. If it fails, we fix it. You get perfect goods.
Price and Speed
We buy raw copper in big amounts. This saves money. We have fast machines. We make your order in 10 to 15 days. Shipping is fast too. We know how to pack cables for sea travel. They will not get wet or rusty.
Custom Service
Do you need a special size? We can make it. Do you need a different color sheath? We can do it. Do you need specific printing on the cable? Just tell us. We print your brand or the voltage on the skin.
Documents and Certs
We give you all papers. You get the Bill of Lading. You get the Certificate of Origin. You get the Type Test Report. We help you clear customs easily.
Installation Tips
Installing this cable is easy. It is like normal cable. But you must follow some rules. Keep the ends dry. Water can ruin the mica tape inside. Use proper gland kits. Seal the ends well. This stops moisture from getting in over time. If you bury it, use the steel armor type. Rats cannot bite it. Rocks cannot crush it. Always follow the local electric code. If you are not sure, ask a pro. But our cable is very forgiving to install.
Packing and Shipping
We pack cables on wooden drums. The drums are strong. They have steel strips. This stops the drum from breaking. The cable is wrapped in plastic first. Then we put it on the drum. We add desiccant bags inside. These bags stop moisture. We can also use steel-fumigated drums for strict countries. The drums are ISPM 15 compliant. This means no bugs. You can import them anywhere without trouble. We load the container tight. No space is wasted. This saves your shipping cost.
Common Questions
Is it the same as Fire Retardant cable?
No. Fire retardant stops fire from spreading. Fire resistant keeps power on. They work together. But they are different.
Can I use it outside in the sun?
Yes. The black PE or LSZH jacket has UV protection. It lasts 20 years outside.
What is the difference between XLPE and Mineral?
XLPE is plastic based. It is flexible. Mineral is powder based. It is very hard. It is for extreme heat.
How long is the warranty?
We guarantee the quality for 5 years. If it breaks because of making, we replace it.
Do you have stock?
We have stock for common sizes like 1.5mm to 10mm. Big sizes need production time.
This cable is the best choice for safety. Do not risk cheap wire. Use our professional cable. Contact us today for the price list. We reply in 12 hours. Let us keep your buildings safe.