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18/30KV Medium Voltage Underground Cable STA/SWA XLPE Insulated IEC 60502/60228

Minimum Order Quantity : 300 meters Packaging Details : Wooden drum, wood and steel drum,as customer's request
Delivery Time : 12-15 workdays for bulk order 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: 18/30KV Single/Three Cores Power Cable (Armoured)

Detail Information

Material: CU&AL Out Sheath Color: Black Or Customized
Core: 1/3 Cable Drum Length: 300~450 Meter Per Drum
Characted: Armoured Specification: CU/XLPE/CTS/PVC/DSTA/PVC
High Light:

medium voltage underground cable

,

xlpe medium voltage cables

Product Description

18/30KV Underground Medium Voltage (MV)STA/SWA Single/Three Cores Armoured Power Cables XLPE insulated IEC 60502/60228

 

 

APPLICATIONS:

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.

 

STANDARD:

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.

Conductors

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.

Insulation

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.

Laying-Up

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.

 

Armouring

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.

 

18/30KV Medium Voltage Underground Cable STA/SWA XLPE Insulated IEC 60502/60228 0

18/30KV Medium Voltage Underground Cable STA/SWA XLPE Insulated IEC 60502/60228 1

 

Cable Package

18/30KV Medium Voltage Underground Cable STA/SWA XLPE Insulated IEC 60502/60228 2

Cable testing 

18/30KV Medium Voltage Underground Cable STA/SWA XLPE Insulated IEC 60502/60228 3
 

Cable Parameters:
18/30KV Medium Voltage Three Cores Power Cable (Amoured)

 

Normal cross sectional area
(mm²)
Appro conductor dia
(mm)
Nom insulation thickness
(mm)
Copper tape thickness
(mm)
Copper wire screen area
(mm²)
Appro. Insulation dia
(mm)
Nom armor thickness
(mm)
Nom sheath thickness
(mm)
Appro overall diameter
(mm)
Appro weight
(kg/km)
                  CU AL
50 8.25 8.0 0.1 16 25.9 0.5 3.2 72 7300 6400
70 9.90 8.0 0.1 16 27.5 0.5 3.3 75 8400 7100
95 11.7 8.0 0.1 16 29.3 0.5 3.5 80 9700 7900
120 13.1 8.0 0.1 16 30.7 0.8 3.6 84 11700 9400
150 14.3 8.0 0.1 16 31.9 0.8 3.7 87 12900 10100
185 16.3 8.0 0.1 25 33.9 0.8 3.9 92 14800 11300
240 18.7 8.0 0.1 25 36.3 0.8 4.0 98 17300 12600
300 20.9 8.0 0.1 25 38.5 0.8 4.2 103 20000 14100
400 23.7 8.0 0.1 35 41.3 0.8 4.4 110 23500 16000

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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18/30KV Medium Voltage Underground Cable STA/SWA XLPE Insulated IEC 60502/60228 4

 

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