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Fire-resistant XLPE sheathed power cable
XLPE sheathed power cable
This kind of cable has a special fireproof coating, so it has
excellent heat insulation and fireproof performance. It is mainly
used for fire protection, surveillance and alarm equipment in
modern urban buildings and places with strict safety requirements,
such as emergency lighting, control and power circuits, power
stations, fire alarm systems, underground tunnels, elevators,
escalators and high-rise buildings.
When burning, this kind of cable will not diffuse and burn, will
not emit halogen and low smoke, is non-toxic, can protect people
from suffocation and corrosion, and can help the instrument avoid
damage. Compared with PVC cables, XLPE cables have a higher
long-term working temperature and a larger rated current. Under the
same conditions, the XLPE insulation layer is thinner than that of
PE or PVC, which not only improves the quality and performance of
the cable, but also Reduced our production costs.
Physical and Electrical Characteristics
No.cores x | Insulation | Sheath | Outer Ø | weight | Current ratings in air 30℃ | Current ratings buried 20℃ | |
cross-sec. | thickness | thickness | approx. | approx. | |||
Nominal | |||||||
Phase | Neutral | value | |||||
mm² | mm | mm | mm | mm | kg / km | A | A |
3×4+1×2.5 | 0.7 | 0.7 | 1.8 | 12.7 | 277 | 37 | 47 |
3×6+1×4 | 0.7 | 0.7 | 1.8 | 13.9 | 363 | 47 | 60 |
3×10+1×6 | 0.7 | 0.7 | 1.8 | 16.1 | 527 | 64 | 81 |
3×16+1×10 | 0.7 | 0.7 | 1.8 | 18.6 | 766 | 85 | 106 |
3×25+1×16 | 0.9 | 0.7 | 1.8 | 22.2 | 1140 | 113 | 137 |
3×35+1×16 | 0.9 | 0.7 | 1.8 | 24.6 | 1475 | 139 | 164 |
Product characteristics
1.1 The long-term allowable working temperature of the cable
conductor does not exceed 70°C;
1.2. When short-circuited (the longest duration does not exceed 5
seconds), the maximum temperature of the cable conductor does not
exceed 160°C;
1.3. The ambient temperature when laying cables should not be lower
than 0°C.
2. Use characteristics
2.1 The maximum rated temperature of the cable conductor is 90°C,
and the short-circuit time (the longest duration does not exceed
5S), and the maximum temperature of the cable conductor does not
exceed 250°C.
2.2 The ambient temperature when laying the cable should not be
lower than 0°C
2.3 The bending radius should be allowed when laying: single-core
cables are not less than 15 times the outer diameter of the cable;
multi-core cables are not less than 10 times the outer diameter of
the cable