11kv CWA screened AWA armored underground cable 1x120sqmm Medinum
voltage power cable
Applications
The single core cables are designed for distribution of electrical
power with nominal voltage Uo/U ranging from 3.8/6.6KV to 19/33KV
and frequency 50Hz. They are suitable for installation mostly in
power supply stations, indoors and in cable ducts, outdoors,
underground and in water as well as for installation on cable trays
for industries, switchboards and power stations.
Standard
BS 6622
BS 7835 (LSZH Version)
Construction
Conductor: Plain annealed copper or aluminium complying with IEC
60228/BS 6360. Copper conductors shall be stranded (class 2) and
aluminium conductors shall be either solid or stranded (class 2).
Conductor Screen: Extruded layer of semi-conducting cross-linkable
compound is applied over the conductor and shall cover the surface
completely. The minimum thickness is 0.3mm and the maximum
resistivity shall not exceed 500 Ohm-m at 90°C.
Insulation: Insulation is of cross-linked polyethylene compound
XLPE (GP8) conforming to BS 7655-1.3 or EPR (GP7), conforming to BS
7655-1.2.
Insulaton Screen: Extruded layer of semi-conducting cross-linkable
compound is applied over the insulation. The extruded
semi-conducting layer shall consist of bonded or cold strippable
semi-conducting compound capable of removal for jointing or
terminating. As an option, a semi-conducting tape may be applied
over the extruded semi-conducting layer as a bedding for the
metallic layer. The minimum thickness is 0.3 mm and the maximum
resistivity is 500 Ohm-m at 90°C. The screen is tightly fitted to
the insulation to exclude all air voids and can be easily hand
stripped on site.
Metallic Layer: The metallic layer shall consist of either copper
tapes or a concentric layer of copper wires or a combination of
tapes and wires. The metallic layer provides an earth fault current
path, capable of withstanding fault current to earth of 1000A for
one second at maximum temperature 160°C. Copper wires are applied
over the conducting water blocking layer with a minimum diameter of
0.5mm. And over the copper wires, copper tape with minimum
thickness of 0.1mm can be applied helically with overlap.
Separation Sheath: The separation sheath comprises a layer of extruded PVC, PE or
LSZH. The nominal thickness is calculated by 0.02Du + 0.6mm where
Du is the fictitious diameter under the sheath in mm. The nominal
separation sheath thickness shall not be less than 1.2mm.
Armour: The armour consists of round aluminium wire with diameter
specified as in Table 3.
Table 3. Armour Wire Diameter
| Fictitious Diameter under the Armour | Armour Wire Diameter |
| mm | mm |
| > | < | |
| - | 25 | 1.6 |
| 25 | 35 | 2.0 |
| 35 | 60 | 2.5 |
| 60 | - | 3.15 |
Over Sheath: Overall sheath comprises a layer of extruded either PVC type 9
conforming to BS 7665-4.2 or MDPE type TS2 conforming to BS
7655-10.1. LSZH can be offered as an option. The over sheath is
normally black in colour. When a DC voltage test is to be performed
on the over sheath, a semi-conducting layer such as graphite
coating shall be applied over the surface of the extruded over
sheath. The nominal over sheath thickness is calculated by
0.035D+1.0 where D is the diameter immediately under the over
sheath in mm. For cables with the over sheath not applied over the
armour, the nominal over sheath thickness shall not be less than
1.4mm. And for cables with over sheath applied over the armour, the
nominal over sheath thickness shall not be less than 1.8mm.
Technical date sheets 11kv CWA screened AWA armored underground
cable 1x120sqmm Medinum voltage power cable
| Nom. Cross- Section | Nom. Insulation Thickness | Metallic Screen Area | Nom. Bedding Thickness | Nom. Armour Wire Diameter | Nom.Sheath Thickness | Approx. Overall Diameter | Approx. Weight |
| Area | CU | AL |
| mm² | mm | mm² | mm | mm | mm | mm | kg/km |
| 50 | 3.4 | 16 | 1.2 | 1.6 | 1.8 | 27.5 | 1600 | 1280 |
| 70 | 3.4 | 16 | 1.2 | 1.6 | 1.9 | 29.5 | 1840 | 1400 |
| 95 | 3.4 | 16 | 1.2 | 1.6 | 1.9 | 31.4 | 2130 | 1530 |
| 120 | 3.4 | 16 | 1.2 | 1.6 | 2 | 33.6 | 2430 | 1670 |
| 150 | 3.4 | 25 | 1.2 | 1.6 | 2.1 | 35.4 | 2870 | 1930 |
| 185 | 3.4 | 25 | 1.2 | 2 | 2.1 | 38.4 | 3240 | 2080 |
| 240 | 3.4 | 25 | 1.2 | 2 | 2.2 | 41.3 | 3490 | 2330 |
| 300 | 3.4 | 25 | 1.2 | 2 | 2.2 | 43.7 | 4490 | 2560 |
| 400 | 3.4 | 35 | 1.2 | 2 | 2.4 | 47.1 | 5589 | 3040 |
| 500 | 3.4 | 35 | 1.3 | 2.5 | 2.5 | 52.4 | 6780 | 3680 |
| 630 | 3.4 | 35 | 1.4 | 2.5 | 2.6 | 56.8 | 8230 | 4200 |
11kv CWA screened AWA armored underground cable 1x120sqmm Medinum
voltage power cable Products show
11kv CWA screened AWA armored underground cable 1x120sqmm Medinum
voltage power Cable testing
About Zhenglan Cable Technology Co., Ltd
Zhenglan Cable Technology CO., Ltd.,formerly known as HENAN
Zhengzhou Cable Co., Ltd., is one of the large scale backbone
enterprises in China's wire and cable industry. The factory is
located in the Zhengzhou cable science and Technology Industrial
Park of the Wuzhi industrial area. It is a modern industrial park
integrating advanced research and development technology and
production technology.
FAQ
1. Is your company a factory or a trade company?
Factory, more than 20 years in China
2. How long can I expect to get the sample?
After you pay the freight charge and send us confirmed files, the
samples will be ready for delivery in 3-7 days. The samples will be
sent to you via express and arrive in 3~7 days. You can use your
own express account or prepay us if you do not have an account.
3. What are your payment terms?
We normally accept T/T 30% deposit, 70% balance before delivery as
the main payment terms, and other payment can also be negotiated.
Trade assurance on is also available.
4. What’s the delivery time?
Sample order needs 3~5 days. Formal order depends on the quantity.
Usually it needs 7-30 days after get your payment.
5. What is your MOQ?
Generally for medinum voltage poer cable MOQ is 1000m.
