XLPE Insulated Medium Voltage Cable

Medium Voltage Power Cables up to 30 kV with XLPE-insulation: The XLPE-insulation possesses very good electrical, mechanical and thermal characteristics in medium voltage networks. This type of insulation is excellent chemical resistant and also resistant to cold. Due to various advantages, the...

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Medium Voltage Power Cables up to 30 kV with XLPE-insulation:

The XLPE-insulation possesses very good electrical, mechanical and thermal characteristics in medium voltage networks. This type of insulation is excellent chemical resistant and also resistant to cold. Due to various advantages, the XLPE-insulated type has vastly displaced the traditional classical paper insulated types in many sectors.

The XLPE-insulated medium voltage cables are designed with longitudinally water-proof. In comparison to PVC and paper-insulated cables, the advantages of XLPE-insulated medium voltage power cables are possessing a low dielectric factor.

The good properties of XLPE-insulated cables remain constant at a long temperature range. These cables can be laid in earth, in air or in tubes.


MANUFACTURING PROCESS OF XLPE CABLES:

In the manufacture of medium and high voltage XLPE cable,our plant uses the latest technology available in the field by using an integrated high performance extrusion line which consists of a triple-layer crosshead and a water-free Completely Dry Curing and Cooling(CDCC) gas-vulcanizing process.This type of extrusion line minimises the risk of introducting external contaminants and produces high quality XLPE cable.

The conductor is paid off continuously through a metering capstan (which is the line speed master point), a triple extruder crosshead,a vulcanizing tube,an eccentricity monitoring unit,and haul-off caterpillars,and finally taken up.

Using a group of three extruders, the triple crosshead allows simultaneous extrusion of the cable insulation and two semiconducting

screens with a high degree of smoothness and no voids or introduction of extrernal contaminants. Precise and stable temperatures at the crosshead are achieved by using multiple zone temperature controls.

In the water-free CDCC gas-vulcanizing process,the triple-extruded cable core is cured in an inert pressurised gas tube and heatd to the required temperature for material cross-linking.By varying the curing temperature and time,different cure percentages can be achieved as per customer requirements.

The various functions of our integrated extrusion line such as line speed and curing tube temperatures synchronisation are monitored and controlled via the process automation computers to ensure production of quality ramps.Calculated ramp parameters can be preset on the control unit and closed circuit TV system is used to ease the running of the lines.

 

TESTING PROCEDURES FOR XLPE CABLES:

At our plant the testing process of XLPE cables and its accessories is subjected to the most stringent standards to ensure that our products meet the quality required for optimum problem free performance.

In this respect our plant uses advanced state of the art testing equipment in a strict series of test processes to achieve the exacting quality standards

Among the main test equipment

1.Partial Discharge Test System

2.Impulse Test System

3.Capacitance & Power Factor Measuring Bridge

4.A.C High Voltage Test System

5.A.C Long Time Test System

If you are interested in any of our products,please contact us directly.

 

Factory information: 

Welcome to our factory !

Factory Name

Jiangsu Changcheng Cable Co.,Ltd

Location

Lingtang Town,Yangzhou,Jiangsu ,China

Establishes in

1990,more than 25 years’ experience in cable manufacturing

Export office location

Yunhe Building,Hanjiang Area,Yangzhou,China

Our main products

Control cable

Instrumentation cable

Power cable

Cable and electrical wires for installation

High temperature cable

Flame retardant and Fire-resistant cable

Special cable

Cable tray

Street lighting

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