Flame Retardant Underground Copper Cable 30kv 1Cx240sqmm Cu/Xlpe/Cts/Pvc/Awa/Pvc

 China Flame Retardant Underground Copper Cable 30kv 1Cx240sqmm Cu/Xlpe/Cts/Pvc/Awa/Pvc supplier

Flame Retardant Underground Copper Cable 30kv 1Cx240sqmm Cu/Xlpe/Cts/Pvc/Awa/Pvc image

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flame retardant 33kv 1Cx240sqmm cu/xlpe/cts/pvc/awa/pvc underground copper cable


These cables are designed for distribution of electrical power with nominal voltage Uo/U ranging from 1.8/3KV to 26/35KV 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.


IEC 60502 Part 2(3.6/6KV to 18/30KV)

Cable Construction

medium voltage cables are manufactured using the monosil process. We provide the highly specialized plant, state-of-the-art research facilities and meticulous quality control procedures that are required for the manufacturing of PVC insulated cables for use up to 6KV and XLPE/EPR insulated cables for use at voltages up to 35 KV. The materials are all kept in cleanliness-controlled conditions throughout the production process in order to ensure the absolute homogeneity of the finished insulation materials.


Either aluminium or copper conductors are used. Conductors up to 630mm² will be circular, compacted & stranded and shall comply with IEC 60228 class 2. 630mm² conductor will be circular stranded type on which a layer of semi-conducting tape will be applied.

Conductor Screen

This will be an extruded layer of semi-conducting crosslinkable compound applied under simultaneous triple extrusion process over the conductor along with the insulation and the insulation screen. The triple extrusion is a single high precision operation that eliminates the possibility of any contamination between the layers which could create irregularities in the electrical field. By careful material selection and special attention to process parameters, we produce the insulation screen layers with the required degree of stripping force as stipulated by the applicable national or international standard.


This will be an extruded layer of XLPE applied over conductor screen under triple extrusion process along with conductor screen and insulation screen.

Insulation Screen

This will be a layer of semi-conducting crosslinkable compound which will be applied by triple extrusion process over the insulation.

Metallic Screen

It will consist of a layer of copper tape applied helically with overlap over insulation screen. Other combinations of metallic screens as per customer ’s requirement can also be provided on request.


In case of three core cables, the three cores are laid up with non-hygroscopic fillers like polypropylene(PP) fillers at interstices and a binder tape is applied with an overlap. These binder tapes can be of PVC or foamed Polyethylene.

Inner Sheath (Bedding) for Armoured Cables

Extruded layer of PVC or PE is applied over the laid up cores for armoured cables. PVC is normally of grade ST2 and PE of grade ST7 as per IEC 60502 Part 2.


In case of armoured cables, the armour is applied helically over inner sheath. For single core cables, it is of aluminium wires and for multicore cables, the armour can be of one among the following options:

a) Galvanized steel wire.

b) Galvanized steel tape.

c) aluminum wire

Over Sheath

An extruded layer is applied over the armour in case of armoured cables and over laid up cores in case of unarmoured cables. Outer sheath material can be either PVC, PE, HDPE or MDPE. our

medium voltage cables are normally supplied with red PVC over sheaths complying with BS 6622 or IEC 60502. Other colors may be provided to suit a range of installation considerations such as the effect of UV radiations and differing soil compositions. Anti-termite formulations can also be supplied in addition to graphite-coated over sheaths where on-site testing of the sheath is required.

Fire Performance on Cable Sheaths

Cables can also be supplied with special flame retardant PVC over sheaths to comply with the IEC 60332 standard. We can also supply cables with Low Smoke Halogen Free (LSZH) sheaths according to BS 7211 and BS 6724 standards or other equivalent international standards.

IEC 60502 30kv 1Cx240sqmm cu/xlpe/cts/pvc/awa/pvc underground cable​ images

IEC 60502 30kv 1Cx240sqmm cu/xlpe/cts/pvc/awa/pvc underground cable​ Package

Cable testing

Cable Parameters:





Unarmoured Cables Aluminium Wire Armoured Cables






























mm² mm mm mm² mm mm kg/km mm mm mm mm kg/km
50 8.0 0.1 16 2.0 31 1250 960 1.2 2.0 2.2 38 1910 1640
70 8.0 0.1 16 2.0 34 1510 1090 1.2 2.0 2.3 41 2240 1820
95 8.0 0.1 16 2.1 35 1830 1240 1.2 2.0 2.3 42 2570 1980
120 8.0 0.1 16 2.1 37 2110 1360 1.3 2.5 2.4 45 3060 2310
150 8.0 0.1 25 2.2 38 2420 1510 1.3 2.5 2.5 47 3430 2510
185 8.0 0.1 25 2.2 40 2830 1680 1.3 2.5 2.5 50 3890 2720
240 8.0 0.1 25 2.3 43 3500 1980 1.4 2.5 2.6 52 4630 3120
300 8.0 0.1 25 2.4 45 4150 2250 1.4 2.5 2.7 54 5330 3430
400 8.0 0.1 35 2.5 49 5070 2640 1.5 2.5 2.8 58 6360 3930
500 8.0 0.1 35 2.6 52 5945 2965 1.6 2.5 2.9 61 7670 4490
630 8.0 0.1 35 2.7 56 7445 3555 1.7 2.5 3.0 65 8870 5020

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 company's registered capital is about 4 million 6 thousand yuan and its headquarter is located in 49 floor of the South Tower of the Greenland Center of Zhengzhou high railway station (Petronas Twin Towers). 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.

Why Choose Zhenglan Cable:

  • OEM/ODM services provided;
  • Products comply with GB, IEC, BS, ASTM, DIN, VDE and JIS standards; Customer standard requirments Accepted;
  • Certified to ISO 9001:2015, ISO 14001:2015 and OHSAS 18001:2007;
  • Registered capital of $30 million and factory covers an area of 60,000㎡;
  • Advanced test equipment and procedures, 100% inspection before factory;
  • Enough stocks and the higest efficient shipping time guarranteed;
  • Professional pre-sales and after-sales services provided.

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 Alibaba 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.

We are China Flame Retardant Underground Copper Cable 30kv 1Cx240sqmm Cu/Xlpe/Cts/Pvc/Awa/Pvc manufacture and supplier,You can get more details with Email,you will get cheap price or factory price.

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