1kV XLPE fireproof cable
Application field
These cables are used for power supply in low-voltage installation
systems and are suitable for installation in indoor and outdoor,
cable ducts, underground, power and exchange stations, local energy
distribution, and industrial plants without mechanical damage.
construction
1. Conductor
The conductor shall be Class 1 or Class 2 of ordinary or metal
coated annealed copper or plain aluminum or aluminum alloy, or
Class 5 of ordinary or metal coated copper in accordance with IEC
60228
2. Insulation
The material and thickness of XLPE should meet the requirements of
IEC 60502 or BS 5467, and can work continuously at 90°C.
3. Assembly/inner cover
The inner cover can be squeezed or ground. For cables with round
cores, except for cables with more than five cores, the use of
overlapping inner coverings is only allowed when the gap between
the cores has been substantially filled. Before applying the
extruded inner cover layer, it is allowed to use a suitable
adhesive. The material should be compatible with the insulating
material, and the material used for the inner covering and filling
layer should be suitable for the working temperature of the cable
and compatible with the insulating material; for halogen-free
cables, the inner covering and filling layer should also be
halogen-free compounds.
4. Armor
According to IEC 60502-1, aluminum/galvanized steel/steel wire is
spirally wound on the inner cover, and double aluminum/steel tape
and copper/tinned copper wire can also be manufactured according to
requirements.
| No.cores x | Insulation | Nominal | Outer Ø | weight | Current ratings in air 30℃ | Current ratings buried 20℃ | maximum DC resistance at 20℃ |
| cross-sec. | thickness | Sheath | approx. | approx. |
| | thickness | | |
| mm² | mm | mm | mm | kg / km | A | A | Ω/km |
| 4×4 | 1 | 1.8 | 14.9 | 339 | 30 | 38 | 4.61 |
| 4×6 | 1 | 1.8 | 16.1 | 436 | 38 | 48 | 3.08 |
| 4×10 | 1 | 1.8 | 19.3 | 669 | 53 | 66 | 1.83 |
| 4×16 | 1 | 1.8 | 21.8 | 953 | 70 | 86 | 1.15 |
| 4×25 | 1.2 | 1.8 | 26 | 1374 | 94 | 112 | 0.73 |
| 4×35 | 1.2 | 1.8 | 28.7 | 1810 | 116 | 135 | 0.52 |
| 4×50 | 1.4 | 1.9 | 29.5 | 2312 | 139 | 161 | 0.39 |
| 4×70 | 1.4 | 2.1 | 33 | 3105 | 177 | 202 | 0.27 |
| 4×95 | 1.6 | 2.2 | 38.1 | 4179 | 217 | 240 | 0.19 |
| 4×120 | 1.6 | 2.4 | 41.1 | 5185 | 254 | 274 | 0.15 |
| 4×150 | 1.8 | 2.5 | 45.8 | 6414 | 294 | 309 | 0.12 |
| 4×185 | 2 | 2.7 | 50.5 | 7901 | 337 | 346 | 0.1 |
| 4×240 | 2.2 | 2.9 | 55.7 | 10249 | 401 | 403 | 0.08 |
| 4×300 | 2.4 | 3.1 | 63.4 | 13365 | 470 | 459 | 0.06 |
There are 3 fire protection grades to choose from
Grade A is the highest flame retardant grade. That is, the
insulating material used in the cable, the filling rope, the
fastening (inner pad) tape/layer and the sheath material are all
flame retardant materials.
Except for insulating materials, all other materials of Class B are
flame retardant materials.
C grade only the sheath material is flame retardant
NH cable (fire-resistant cable) is a cable constructed with a layer
of mica tape. Even if the plastic skin is burned, the refractory
layer will not cause a short circuit. When wiring, cut off the
refractory layer of the thread.
LSZH, LSOH, LS0H, LSFH or OHLS cables (low-smoke zero-halogen
cables) are insulated or outer sheathed cables made of low-smoke
halogen-free materials, which help to reduce toxic and corrosive
gases generated during the combustion process.
Anti-termite cables are cables made by mixing insulating materials
or outer sheaths with certain materials to prevent termites from
biting the cables.
