LSZH Silicon Fire Alarm Cable Fire Resistant Cable 50-1200mm2 IEC60331
APPLICATION
Low-smoke, halogen-free medium-voltage cables (LSZH MV cables) are widely used in critical infrastructure and safety-sensitive environments due to their fire-resistant and environmentally friendly properties. Key application scenarios include:
- Urban Public Buildings
- Underground Transportation Systems
- Industrial Facilities
- Renewable Energy Projects
CONSTRUCTION
- Conductor: Circular stranded, compacted copper conductor or aluminum conductor, class 2
- Conductor Screen:Semi-conducting Compound
- Insulation:XLPE (Cross-linked polyethylene)
- Insulation Screen:Semi-conducting Compound
- Metallic Screen:Copper Tape
- Filler (only for multi core cable) Non-hygroscopic
- Binder Tape:Non-woven fabric
- Separation Sheath PVC (Polyvinyl chloride)
- Armour: Single core: Aluminum Wire Armour(AWA)Three cores: Galvanized SteelTape(STA) or Galvanized Steel Wire(SWA)
- Outer Sheath: PVC (Polyvinyl chloride), PE( Polyethylene), LSZH(Low Smoke Zero Halogen
STANDARD
VDE 0276 part 604, VDE 0482-266-2, DIN EN 60332-3 / EN50266-2
SPECIFICATION
Nominal Conductor
Area |
Nominal Conductor
Dia. |
Nominal Insulation
Thickness |
Nominal Dia.
over Insulation |
Nominal Screen
Area on Each
Core |
No.and Nominal
Dia.of Screen
Wires |
Nominal Dia.
Over Wire
Screen |
Nominal Overall
Dia. |
Approx.
Weight |
|
|
|
| mm2 |
mm |
mm |
mm |
mm2 |
no/mm |
mm |
mm |
kg/km |
| 50 |
8.0 |
8.0 |
25.5 |
48.7 |
34/1.35 |
29.8 |
34.3 |
1700 |
| 70 |
9.6 |
8.0 |
27.1 |
68.7 |
48/1.35 |
31.4 |
36.1 |
2150 |
| 95 |
11.5 |
8.0 |
29.0 |
68.7 |
48/1.35 |
33.3 |
38.0 |
2450 |
| 120 |
13.1 |
8.0 |
30.6 |
68.7 |
48/1.35 |
34.9 |
39.8 |
2800 |
| 150 |
14.5 |
8.0 |
32.0 |
68.7 |
48/1.35 |
36.5 |
41.4 |
3100 |
| 185 |
16.1 |
8.0 |
33.6 |
68.7 |
48/1.35 |
38.1 |
43.2 |
3450 |
| 240 |
18.5 |
8.0 |
36.0 |
68.7 |
48/1.35 |
40.5 |
45.9 |
4100 |
| 300 |
20.7 |
8.0 |
38.4 |
68.7 |
48/1.35 |
42.9 |
48.4 |
4750 |
| 400 |
23.6 |
8.0 |
41.3 |
68.7 |
48/1.35 |
45.8 |
51.5 |
5750 |
| 500 |
26.5 |
8.0 |
44.2 |
68.7 |
48/1.35 |
48.7 |
54.9 |
6850 |
| 630 |
29.9 |
8.0 |
47.9 |
68.7 |
48/1.35 |
52.4 |
58.8 |
8150 |
| 800 |
35.9 |
8.0 |
54.0 |
68.7 |
48/1.35 |
58.5 |
65.3 |
10200 |
| 1000 |
40.2 |
8.0 |
59.5 |
68.7 |
48/1.35 |
64.0 |
71.0 |
12200 |
| 1200 |
43.8 |
8.0 |
63.5 |
68.7 |
48/1.35 |
68.0 |
75.2 |
14200 |
OUR FACTORY
APPLICATION
PACKAGE
PARTNERS
FAQ
Q: What is LSZH Silicon Fire Alarm Cable?
A:A flame-retardant cable with low-smoke, zero-halogen (LSZH) silicone insulation, designed to minimize toxic gas emission and smoke density during fires while maintaining circuit integrity.
Q. Where are these cables typically used?
A. Critical environments like subways, hospitals, data centers, and high-rise buildings where fire safety and air quality during emergencies are prioritized.
Q. How does the LSZH silicone material enhance safety?
A. It releases minimal smoke and no corrosive halogens when burned, reducing visibility obstruction and secondary harm to equipment/personnel.
Q. What certifications do these cables comply with?
A. Common standards include EN50200 (PH30/PH120), BS6387 (CWZ), and CE/ROHS for fire resistance and environmental safety.
Q. Can they withstand high temperatures?
A. Yes, silicone insulation allows continuous operation at 90°C and short-term resistance up to 850°C during fire exposure.
Q. What conductor materials are available?
A. Options include bare copper (BC), tinned copper (TC), or copper-clad aluminum (CCA), with stranded/solid variants for flexibility or rigidity.
Q. Are these cables suitable for outdoor use?
A. Yes, when paired with UV-resistant jackets, they can be deployed in renewable energy projects or exposed industrial settings.
Q. How do they compare to PVC-jacketed fire cables?
A. LSZH silicone cables outperform PVC in smoke suppression (<1.5x IEC61034) and halogen-free compliance, crucial for confined spaces.
Q. What is the lifespan under normal conditions?
A. Typically 25+ years due to silicone’s resistance to thermal aging, ozone, and chemicals.
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