| Prod Model: |
VV22 |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Core Identification: |
Red/Yellow/Black/Blue |
| Application: |
Power Station |
| Voltage: |
Low and Medium Voltage Cable |
| Current: |
DC Cable |
| Insulation Material: |
XLPE |
| Wire Core Material: |
Copper |
| Model: |
VV22 |
| Brand: |
Yifang |
Product Description
1. Brief of XLPE insulation Power Cable
XLPE insulation power cable has a number of advantages over paper insulated and PVC insulated cable. XLPE cable has high electric strength, mechanical strength, high-aging resisting, environmental stress resisting anti-chemical corrosion, and simple construction, using convenient and higher operating of long term temperature. It can be laid with no drop restriction.
Various of flame-retardant and non-flame retardant XLPE cable can be manufactured with three technology (peroxide, silance and irradiation crossing-linking). The flame-retardant cable covers all kinds of low-smoke, low-halogen, low-smoke halogen free, and non-smoke non-halogenated and three classes of A, B, C.
Our XLPE cable can be manufactured according to company's specification which is equivalent to IEC 60502, IEC 60332, IEC 60754. Some indexes are superior to above international standard.
Some of special XLPE cable can be manufactured according to the other standard required by customers.
XLPE cable having higher long term working temperature and greater current rating, at the same environment XLPE cable may be reduced size (nominal cross-section) 1 or 2 class in comparison with paper and PVC cable. This is not only improve the quality and propertied of products, but also reduce cable's production costs.
2. Scope of XLPE cable
| Type | No. of Core | Nominal Cross-section of conductor mm2 |
Cu(Al)/XLPE/PVC(PE)
Cu(Al)/XLPE/ATA/PVC(PE)
Cu(Al)/XLPE/AWAPVC(PE) | 1 | 1.5-1000 |
Cu(Al)/XLPE/STA/PVC(PE)
Cu(Al)/XLPE/SWA/PVC(PE) | 2, 3, 4, 5 | 1.5-400 |
| 3+1, 4+1, 3+2 | 2.5-400 |
3. Cross-section area of neutral conductor
In 3+1 core and 3+2 cores should conform to specification of following table:
| Nominal Cross-section | Main core | 2.5 | 4 | 6 | 10 | 16 | 25 | 35 | 50 |
| Neutral core | 1.5 | 2.5 | 4 | 6 | 10 | 16 | 16 | 25 |
| Nominal Cross-section | Main core | 70 | 95 | 120 | 150 | 185 | 240 | 300 | 400 |
| Neutral core | 35 | 50 | 70 | 70 | 95 | 120 | 150 | 185 |
4. Main technical Characteristics of Cable
1) D.C .Resistance: Conductor resistance of finished cable per kilometer at 20oC is not more than the following:
| Nominal Cross-section mm2 | 15 | 2.5 | 4 | 6 | 10 | 16 | 25 |
| Cu core | 12.1 | 7.41 | 4.61 | 3.08 | 1.83 | 1.15 | 0.727 |
| Al core | 18.1 | 12.1 | 7.41 | 4.61 | 3.08 | 1.91 | 1.20 |
| Nominal Cross-section mm2 | 35 | 50 | 70 | 95 | 120 | 150 | 185 |
| Cu core | 0.524 | 0.387 | 0.268 | 0.193 | 0.153 | 0.124 | 0.0991 |
| Al core | 0.868 | 0.641 | 0.443 | 0.320 | 0.253 | 0.206 | 0.164 |
| Nominal Cross-section mm2 | 240 | 300 | 400 | 500 | 630 | 800 | 1000 |
| Cu core | 0.0754 | 0.0601 | 0.0470 | 0.0366 | 0.0283 | 0.0221 | 0.0176 |
2) Voltage Test
Each drum of finished cable should withstand power frequency voltage 3.5kv for 5 minutes, the insulation is not breakdown.
3) Service conditions and parameters of cable
The cable is applied to fixed insulation for rated voltage 0.6/1kv of power transportation and distribution line.
Max. rated temperature of conductor nominal operating 90oC.
Short circuit: max. for 5 sec. 250oC.
The cable can be laid without drop retriction, and the environment temperature shall not be lower than 0oC.
Zhengzhou Yifang Cable Co., Ltd is a large joint-stock\hi-tech enterprise established in 1988. We are specialized in wires & cables, including designment, production and sales.
There are more than 500 staffs in our factory including over 50 technical personnel, 5 senior engineers. With complete advanced cable producing equipments over 150 sets, complete testing equipments, a national level fire-resistant & flame retardant cable laboratory. Our technology has reached advanced levels at home and abroad.
Our main products include: Power Cable for voltage up to 220KV, Overhead insulated cable, ABC Cable, Building Cable and flexible cord, Control Cable, Rubber Cable, Bare Conductor(ACSR, AAC, AAAC, BCC), Welding Cable, Galvanized Steel Wire(Stay wire), flame retardant mining cable, etc
We have own IM/EX right, our products have been exported to Europe, Australian, Middle-east, South-east Asia, Africa, American, South American etc., being subjected to consistent good opinion of customers.
