MEDIUM VOLTAGE CABLE

Quick Detail

Package & Delivery Lead Time

Detailed Description

1. Standars The cable can be made maily complying with standards IEC60502, 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. 2. Property for Using (1) The cable have excellent electric, mechanical properties (2) they have powerful resistance against chemical corrosion, heataging and environmental stress. (3) Their structures are simple, the permissable maximum operating temperature is 90℃. (4) It is convienient for using and can be laid with no restriction of different elevation. Our enterprise can produce both flame retardant and non-flame retardant series of XLPE power cable. Our XLPE Power cable covers all kinds of low-smoke low-halogen, low-smoke halogen free and three classes of A, B, C. We can design and manufacture special XLPE cable according to the other standards required by the customers, such as Heavy section cut apart conductors, water-resistance, defend termites, defend mouse ,and so on . 2. Scope of our Cables Cross-section sqmm Rated Voltage kV 1st class 3.6/6 6/10 8.7/15 12/20 18/30 21/35 Number of core 3rd class 6/6 8.7/10 12/15 18/20 -- 26/35 1core 　 　 25-2000 25-2000 25-2000 25-2000 25-2000 25-2000 3core 　 　 25-400 25-400 25-400 25-400 25-400 25-400 The rate voltage cables in the 1st class available to the earth fault time within 1 minute. The cables in the 2nd class are available to earth fault time not exceeding 2 hours generally, maximum time doesn’t exceed 8 hours. 1. Cable’s Main Type and Application Type Description Main Application Cu core Al core (ZR)YJV or (ZR)YJY (ZR)YJLV or (ZR)YJLY （Flame retardant) Cu,Al core XLPE insulated ,PVC or PE sheathed power cable For laying indoor, tunnel, underground and canal. Unable to bear external mechanical pulling force and pressure during laid. (ZR)YJV22 or (ZR)YJY23 (ZR)YJLV22 or (ZR)YJLY23 （Flame retardant) Cu,Al core XLPE insulated ,Steel tape armoured ,PVC or PE sheathed power cable For laying indoor, tunnel, underground and canal. Able to bear external mechanical forces, but unable to bear large pulling force. (ZR)YJV32 or (ZR)YJY33 (ZR)YJLV32 or (ZR)YJLY33 （Flame retardant) Cu,Al core XLPE insulated ,Fine steel wire armoured, PVC or PE sheathed power cable For laying in shaft, water under ground and large difference of level, able to bear external mechanical pressure and moderate pulling force. (ZR)YJV42 or (ZR)YJY43 (ZR)YJLV42 or (ZR)YJLY43 （Flame retardant) Cu,Al core XLPE insulated ,thick steel wire armoured PVC or PE sheathed power cable For laying in water, seabed and large difference of level ,able to bear larger mechanical pressure and pulling force . 4. Cable Main Technical Characteristics D.C Resistance: D.C Resistance of finished cable at 20℃ per km is not more than the following. Nominal Cross-section sqmm 25 35 50 70 95 120 150 185 240 300 Cu core Ohm 0.727 0.524 0.387 0.268 0.193 0.153 0.124 0.0991 0.0754 0.0601 Al core Ohm 1.20 0.868 0.641 0.443 0.320 0.253 0.206 0.164 0.125 0.100 Nominal Cross-section sqmm 400 500 630 800 1000 1200 1400 1600 1800 2000 Cu core Ohm 0.0470 0.0366 0.0283 0.0221 0.0176 0.0151 0.0123 0.0108 0.0096 0.0086 Al core Ohm 0.0778 0.0605 0.0469 0.0367 0.0291 0.0247 0.0202 0.0177 0.0157 0.0141 Voltage Test and Partial Discharge Test Rated Voltage U0/U KV 0.6/1 1 1.8/3 3/3 3.6/6 6/6 6/10 8.7/10 8.7/15 12/20 18/20 18/30 21/35 26/35 Voltage Test Test Voltage KV 3.5 4.5 6.5 9.5 11 15 22 30 45 53 65 Test Time min 5 5 5 5 5 5 5 5 5 5 5 Partial Discharge Test Test Voltage KV -- -- -- -- 6.3 10.4 15.1 20.8 31.2 36.4 45 Discharge Capacity ﹤PC -- -- -- -- 20 20 20 20 20 10 10 5. Service Conditions and Parameters of Cable Max.Conductor Operating Temperature:90℃ Short Circuit Temperature: 250℃ Not more than 5 seconds Environmental temperature of operating: In air: 40℃Under ground: 25℃ Depth of laying in direct: 80cm Thermal Resistance of soil: 100℃ . cm/W

Basic Company Information

zhengzhouyifangcableco.ltd

Company Advantage

Detail Company Introduction