LOW VOLTAGE CABLE

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1. Application The cables are used in fixed laying on transmission and distribution electrical lines of 50 HZ AC rated voltage up to 6 KV 2. Products standard The cable can be made maily complying with standards IEC60505, can also be made complying with the ASTM, DIN, BS, CSA standards etc. In addition, under the requirement of customers we can design and manufacture the products that have special perfomance. 3. specific property for using and construction of the cable (1)The long-time working temperature of cable should not be higher than 70℃ (2)During short-circuit(max. permanent time is not more than 5s) the max. temperature of cable conductor should not be more than 165℃ (3)The difference level of laying cable is not restricted. When laying the cable, the ambient temperature should not lower than 0℃ (4)They have good chemical stability, and properties of acid resistance, alkali resistace, salt resistance, oil resistance, solvent resistance and flame resistance (5)Light weight, good bending property and easy installation and maintenance Voltage rating:0.6/1kv、3.6/6kv. Conductors: copper or aluminum. Number of cable cross: one core(Single core),two cores(Double cores),three cores, four cores(Four Equal-section-area cores or three equal-section-area and one smaller section area neutral core),five cores(Five equal-section-area cores or three equal-section-area cores and two small area neutral cores).We provide armored type and non-armored type for the cables stated above. Outer sheath: PVC or PE. Our company has been carrying out Chinese national standard GB12706 and GB12666.6 (equivalent to IEC60502 and IEC60331) for PVC insulated power cable and fire resistant cable needed by domestic customer, and for foreigner customers we can manufacture in accordance with BS, DIN and other countries standards. In addition, we can design and manufacture PVC insulated power cable with special characteristics according to needs of customers. Technical Requirements 1. Description Cu core Al core Description of cable VV NH-VV VLV NH-VLV Cu(Al) core PVC--insulated PVC--sheathed power cable Cu(Al) core PVC--insulated PVC—sheathed fire resistant cable VY NH-VY VLY NH-VLY Cu(Al) core PVC--insulated PE--sheathed power cable Cu(Al) core PVC--insulated PE--sheathed fire resistant power cable VV22 NH-VV22 VLV22 NH-VLV22 Cu(Al) core PVC-insulated steel-tape-armored PVC-sheathed power cable Cu(Al) core PVC-insulated steel-tape-armored PVC-sheathed fire resistant cable VV23 NH-VV23 VLV23 NH-VLV23 Cu(Al) core PVC-insulated steel-tape-armored PE-sheathed power cable Cu(Al) core PVC-insulated steel-tape-armored PE-sheathed fire resistant cable VV32 NH-VV32 VLV32 NH-VLV32 Cu(Al) core PVC-insulated fine-steel-wire-armored PVC-sheathed power cable Cu(Al) core PVC-insulated fine-steel-wire-armored PVC-sheathed fire resistant cable VV33 NH-VV33 VLV33 NH-VLV33 Cu(Al) core PVC-insulated fine-steel-wire-armored PE-sheathed power cable Cu(Al) core PVC-insulated fine-steel-wire-armored PE-sheathed fire resistant cable VV42 NH-VV42 VLV42 NH-VLV42 Cu(Al) core PVC-insulated thick-steel-wire-armored PVC-sheathed power cable Cu(Al) core PVC-insulated thick-steel-wire-armored PVC-sheathed fire resistant cable VV43 NH-VV43 VLV43 NH-VLV43 Cu(Al) core PVC-insulated thick-steel-wire-armored PE-sheathed power cable Cu(Al) core PVC-insulated thick-steel-wire-armored PE-sheathed fire resistant cable XLPE Insulated Power Cable Ⅰ Brief of XLPE Insulated Power Cable XLPE insulated power cable has a number of advantages over paper insulated and PVC insulated cable. XLPE cable has high electric strength, mechanical strength, high-ageing resistance, environmental stress resisting anti-chemical corrosion, and it is 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, silence, and irradiation, cross linking). The flame-retardant cable covers all kinds of low-smoke, low-halogen, low-smoke halogen free and non-smoke no halogenated and three classes of A, B, C. Our XLPE cable can be manufactured according to company’s specification which is equivalent to IEC60502, IEC60332, IEC60754. Some of indexes are superior to above international standard IEC. Some of special XLPE cable can be manufactured according to the other standards required by customs. XLPE cable having higher long-term working temperature and greater current rating, ar the same environment XLPE cable may be reduced size (nominal cross-section) 1 or 2 class in comparison with paper and PVC cable. These are not only improving the quality and properties of products, but also reduce cable’s production costs. Attached Table: Cross-section area of neutral conductor in 3+1cores, 4+1cores and 3+2 cores should conform to specification of following table: Nominal cross-section mm2 Main cores 2.5 4 6 10 16 25 35 50 Neutral cores 1.5 2.5 4 6 10 16 16 25 Nominal cross-section mm3 Main cores 70 95 120 150 185 240 300 400 Neutral cores 35 50 70 70 95 120 150 185 Ⅲ、Name and Type of XLPE Cable Type Name Cu core Al core YJV (YJY) YJLV (YJLY) XLPE insulated,PVC(PE)sheathed power cable YJV22 (YJV23) YJLV22 (YJLV23) XLPE insulated, steel tape armoured,PVC (PE) sheathed power cable YJV32 (YJV330) YJLV32 (YJLV330) XLPE insulated, fine steel wire armoured,PVC (PE) sheathed power cable YJV42 (YJV43) YJLV42 (YJLV43) XLPE insulated, thick steel wire armoured,PVC (PE) sheathed power cable ZR-YJV (ZR-YJY) ZR-YJLV (ZR-YJLY) XLPE insulated,PVC(PE) sheathed flame-retardant power cable ZR-YJV22 (ZR-YJV23) ZR-YJLV22 (ZR-YJLV23) XLPE insulated, steel tape armoured,PVC (PE) sheathed flame-retardant power cable ZR-YJV32 (ZR-YJV33) ZR-YJLV32 (ZR-YJLV33) XLPE insulated, fine steel wire armoured,PVC(PE) sheathed flame-retardant power cable ZR-YJV42 (ZR-YJV43) ZR-YJLV42 (ZR-YJLV43) XLPE insulated, thick steel wire armoured,PVC(PE) sheathed flame-retardant power cable Ⅳ.Main technical Characteristics of Cable A. D.C.Resistance : Conductor resistance of finished cable per kilometer at 20℃ is not more than the following Nominal Cross-section mm2 1.5 2.5 4 6 10 16 25 Cu core Ohm/km 12.1 7.41 4.61 3.08 1.83 1.15 0.727 Al core Ohm/km 18.1 12.1 7.41 4.61 3.08 1.91 1.2 Nominal Cross-section mm2 35 50 70 95 120 150 185 Cu core Ohm/km 0.524 0.387 0.268 0.193 0.153 0.124 0.0991 Al core Ohm/km 0.868 0.641 0.443 0.32 0.253 0.206 0.164 Nominal Cross-section mm2 240 300 400 500 630 800 1000 Cu core Ohm/km 0.0754 0.06 0.047 0.0366 0.0283 0.0221 0.0176 Al core Ohm/km 0.125 0.10 0.0778 0.0605 0.0469 0.0367 0.0291 B.Voltage Test Each drum of finished cable should withstand power frequency voltage 3.5 KV for 5 minutes, the insulation is not breakdown. C.Test on bunched Cable Under fire conditions 1.Category of Sample the number of cable lengths required to give a total volume of combustible material per meter of : Category A:7 Liters Category b:3.5 Liters Category c:1.5 Liters 2.Duration of application of the flame In the case of cables samples in Category A and B the test flame should be applied for 40 min. Cable samples in Category C should have the test flame applied for 20min. 3. Evaluation After burning has ceased, the charred portion of cable should not have reached a height exceeding 2.5m.

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zhengzhouyifangcableco.ltd

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