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IEC 60502 3Cores Armored Cable, MV XLPE insulated Cable 12/20KV(CU/XLPE/STA/NYBY/NYRGBY/NYB2Y)

Minimum Order Quantity : 300 meters Packaging Details : Wooden drum, wood and steel drum,as customer's request
Delivery Time : 12 days Payment Terms : L/C, T/T,
Place of Origin: Henan, China Brand Name: Zhenglan Cable
Certification: 3C; ISO 9001:2015, ISO 14001:2005, OHSAS 18001:2007 Model Number: 12/20KV Three Cores Power Cable (Armoured)

Detail Information

Material: CU Out Sheath Color: Black Or Customized
Core: 3 Cable Mark: Ink Printing Or Embossing Content Customized
Cable Drum Length: 300~450 Meter Per Drum Characted: Armoured
High Light:

medium voltage underground cable


xlpe medium voltage cables

Product Description

12/20KV Medium Voltage Three Cores Power Cable (Armoured)



The three core 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)
IEC 60502 3Cores Armored Cable, MV XLPE insulated Cable 12/20KV(CU/XLPE/STA/NYBY/NYRGBY/NYB2Y) 0


Cable Construction



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.

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 3Cores Armored Cable, MV XLPE insulated Cable 12/20KV(CU/XLPE/STA/NYBY/NYRGBY/NYB2Y) 1

Cable Parameters:
12/20KV Medium Voltage Three Cores Power Cable (Amoured)

Normal cross sectional area
Appro conductor dia
Nom insulation thickness
Copper tape thickness
Copper wire screen area
Appro. Insulation dia
Nom armor thickness
Nom sheath thickness
Appro overall diameter
Appro weight
                  CU AL
35 7.10 5.5 0.1 16 19.7 0.5 2.7 57 4900 4200
50 8.25 5.5 0.1 16 20.9 0.5 2.9 60 5600 4700
70 9.90 5.5 0.1 16 22.5 0.5 3.0 64 6600 5300
95 77.1 5.5 0.1 16 24.3 0.5 3.1 68 7800 6000
120 13.1 5.5 0.1 16 25.7 0.5 3.2 71 8900 6600
150 14.3 5.5 0.1 25 26.9 0.5 3.2 74 10100 7200
185 16.3 5.5 0.1 25 28.9 0.5 3.4 79 11700 8200
240 18.7 5.5 0.1 25 31.3 0.8 3.6 86 14900 10200
300 20.9 5.5 0.1 25 33.5 0.8 3.8 91 17400 11600
400 23.7 5.5 0.1 35 36.3 0.8 4.0 98 20800 13400

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.

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