For PVC or XLPE insulated or transmission lines without insulators
or neutral wires, the phase wires can be AAC or AAAC or ACSR or
copper.
For multi-core PVC or XLPE insulated overhead cables, with or
without Messenger or neutral conductors and with or without street
lighting conductors, phase conductors and street lighting
The conductor is AAC with PVC insulation, while Messenger or
neutral conductor transmission line
It is AAAC or ACSR with or without PVC (XLPE) insulation.
standard:
DIN VDE 0276 Part 620 -622
HD 620 S1
3-core copper core XLPE insulated power cable
Structure:
1) Conductor:
Conductor: conform to IEC 60228
Type 2 / VDE 0276 Type 2 compacted round copper or aluminum round
conductors. VDE 0295 HD383. All internal voids of the conductor are
filled with
Water blocking
To prevent water from passing through the cable during storage,
handling, installation and
Operation process
middle
Conductor 3-core copper core XLPE insulated power cable
2) Conductor shielding layer:
The conductor shielding layer consists of a non-metallic
semi-conductive compound extruded layer, which is firmly bonded to
the insulating layer to exclude all air voids. Screen
Minimum thickness
It is 0.3mm at 90°C and the maximum volume resistivity is 500
Ohm-m.
3) Insulation:
The insulation is made of 2XL1 XLPE extruded composite material
according to DIN VDE 0207 part 22 and HD 620.1
With
High degree of cross-linking, no pollutants, no pores and heat
resistance through dry curing process.
3-core copper core XLPE insulated power cable
4) Insulation shielding layer:
The insulating shielding layer consists of a non-metallic,
semi-conductive extruded compound extruded on the insulating layer.
The extruded semiconductor layer should consist of an adhesive or
cold-peelable semiconductor compound that can be removed for
bonding or termination. The minimum thickness is 0.3mm
,
The maximum volume resistivity at 90°C is 500 Ohmm. The screen is
tightly installed on the insulating material to
Get rid of all the air
Voids and can be easily peeled off by hand on site.
3-core copper core XLPE insulated power cable
5) Conductive
Water blocking layer: the insulating shielding layer can use
semi-conductive resistance water
With cover, the tape will expand under the influence of water
moisture to ensure longitudinal water tightness.
6) Metal shielding layer: copper tape shielding layer or copper
wire shielding layer (CTS / CWS)
The copper wire should be used on the conductive water layer with a
minimum diameter of 0.5mm.
Then spirally wind a copper tape with a minimum thickness of 0.1mm
on the copper wire
overlap. The total cross-section of the metal shielding layer is
shown in Table 2.
In the case of a maximum temperature of 160°C, the shielding layer
can withstand a ground fault current of 1000 A for one second.
As shown in the figure, the minimum cross section of concentric
conductors conforms to DIN VDE 0273 and 0276.
7) Isolation layer/
Water blocking layer: The wire mesh may be covered by a
non-conductive water blocking tape, which will expand under the
influence of water moisture to ensure
Vertical
Water tightness.
3-core copper core XLPE insulated power cable
8) Isolation sheath (for armored cables):
The isolation sheath includes a layer of extruded PVC, PE or LSZH,
which is applied under the armor.
9) Armoring (for armored cables): Armoring includes: single core:
aluminum armored (AWA)
Multi-core: steel wire armor (SWA) or steel tape armor (STA)
(1) The double layer of galvanized steel strip is applied spirally
in an appropriate internal overlapping manner.
Squeezed
Separate the sheath.
(2) Coat the galvanized flat steel wire with a thickness of 0.8 mm
spirally
On the surface of the sheath,
The coverage rate is at least 90%. Then the galvanized steel strip
with a nominal thickness of 0.3 mm
Spiral wound at a coverage rate of 50% to cover the surface of the
flat wire.
10) Outer sheath:
The entire sheath includes a layer of extruded PE compound DMP2
according to HD620.1 and 2YM3 types
According to DIN
Product number:
vv, vv22, YJV, YJV22 1, 1-5
Core pure copper conductor
2. PVC insulation, with or without steel armor, with PVC shield
3. High quality, passed ISO 9001, CCC, CE, ROHS certification
4. Provide OEM service.
1. Will be produced in accordance with the Chinese national
standard GB/T12706.2-12706.3 equivalent to IEC 60502
XLPE power cable. 2
Application
This product is suitable for system power transmission and
distribution lines with a rated voltage of 6/6kV to 26/35kV. Based
on different sheath structures, it can be used for aerial and
underground laying.
