18/30(36)KV 19/33(36)KV 70sqmm Three Cores Armoured Power Cable Al or Cu Conductor

 China 18/30(36)KV 19/33(36)KV 70sqmm Three Cores Armoured Power Cable Al or Cu Conductor supplier

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18/30(36)kV 19/33(36)kV 70sqmm Three Cores Al or Cu/XLPE/CTS/STA/SWA/PVC Armoured Power Cable IEC 60502


The product is suitable for use in power transmission and distribution lines with rated power frequency voltage 3.6/6kv~26/35kv.


IEC 60228 Conductors of insulate cables
IEC 60502-2 Power cables with extruded insulation and their accessories for rated voltages from 1 kV(Um=1.2kV) up to 30kV
(Um=36kV) – Part 2:Cables for rated voltages of 6 kV(Um=7.2kV) and 30 kV(Um=36kV)

Cable Construction

We adopt highly specialized plant, state-of-the-art research facilities and meticulous quality control procedures that are required for the manufacturing of xlpe insulated cables for use up to 6KV and XLPE insulated cables for use at voltages up to 35 KV.


Either aluminium or copper conductors are used. Conductors will be circular, compacted & stranded and shall comply with IEC 60228 class 2.

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.

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.

Technical parameters:

18/30(36)kV 19/33(36)kV Three Cores Al or Cu/XLPE/CTS/STA/SWA/PVC Armoured Power Cable

No. X Nominal Cross Section of Conductor Nominal Diameter of Conductor Nominal Thickness of Insulation Nominal Thickness of Copper Tape Screen Nominal Thickness of Inner Sheath Nominal Thickness of Steel Tape Armouring Nominal Thickness of PVC Sheath Approx. Overall Diameter Approx. Weight
Al Conductor Cu Conductor
No. X mm 2 mm mm mm mm mm mm mm Kg/m Kg/m
3 X 25
3 X 35
3 X50 8.2 8 0.1 1.7 0.5 2.8 70.4 4.56 5.41
3 X 70 9.7 8 0.1 1.7 0.5 2.9 73.9 5.04 6.26
3 X 95 11.3 8 0.1 1.8 0.5 3 77.7 5.62 7.32
3 X 120 12.8 8 0.1 1.9 0.8 3.2 82.8 6.99 9.15
3 X 150 14.2 8 0.1 1.9 0.8 3.2 85.8 7.56 10.26
3 X 185 15.9 8 0.1 2 0.8 3.3 89.9 8.3 11.67
3 X 240 18.3 8 0.1 2.1 0.8 3.5 95.7 9.36 13.79
3 X 300 20.4 8 0.1 2.2 0.8 3.6 100.6 10.51 16.07
3 X 400 23.2 8 0.1 2.3 0.8 3.8 107.2 11.99 19.07
3 X 500 26.4 8 0.1 2.4 0.8 4 120.1 14.15 23.85



Cable testing

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 18/30(36)KV 19/33(36)KV 70sqmm Three Cores Armoured Power Cable Al or Cu Conductor manufacture and supplier,You can get more details with Email,you will get cheap price or factory price.

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