Aluminum Conductor XLPE Insulation Copper Tape Screen Armored Power Cable

Aluminum Conductor XLPE Insulation Copper Tape Screen Armored Power Cable

Specification

1. Scope

The cables are manufactured and tested in accordance with IEC60502 Power Cables with Extruded Insulation and their accessories for rated voltages from 1kV(Um1.2 kV) up to 30kV(Um 36kV). Whereas, Greatwall Cable can supply XLPE insulation cables according to other recognized national and international standards or customized specification.

2. Construction and Material

1) Conductor

Conductors are normally class 2 of compacted cicular or circular standard conductors of copper or aluminium. 

2) Conductor Screen

All cable of rated voltage above 1.8/3kV are supplied with conductor screening which is non-mentallic and consists of either semi-conducting tape or a layer of extruded semi-conducting compound,or a combination of the two.

3) Insulation

Insulation is a layer of extruded cross-linked polyethylene(XLPE).

4) Insulation Screen

For cable at rated voltage above 1.8/3kV ,insulation screening consists of a non-metallic semi-conducting part in combination with a metallic layer and consists of either semi-conducting tape or a layer of extruded semi-conducting compound.. The extruded insulation screen is normally free strippable(easy removable) type but can be provided with bonded one upon request.  

The metallic part is normally applied on the individual cores for rated voltage above 1.8/3kV and on the core assembly for rated voltage 1.8/3kV and consists of plain annealed copper tape. or copper tape screen a layer of copper wire,a lead alloy or corrugated aluminum sheath can be provided upon request.  



5) Inner Covering or Separation Sheath

(for armored cables)

A layer of PVC inner coveing is applied under the armor ,if there is no screen.

When the metallic screening and the armor are of different metals, an extruded separation sheath of PVC is provided in order to separate the different metals.



6) Metallic Armor

The armor, if required, consists of single layer of round wires or double tapes of galvanized steel or aluminum or other non-magnetic metals. Single core cables are normally armored with aluminum(other non-magnetic metals),  because non-magnetic armor is essential for single core cable for use on A.C circuit .



7) Outer Sheath

All cable are normally provided with an extruded PVC out sheath, black colored(class ST2). Other materials can be available upon request,as PE , polyethylene,high flame or fire retardant PVC and etc.



8) Core Identification

 The multiple conductors are identified as according IEC60502 .

Description:

CU/XLPE/LSOH, IEC 60331

IEC 60502, IEC 60227, IEC 60331, IEC 601034, IEC60754 GB/T 12706-91 GB306.1-2001, GB/T18380.3-2001

CE, CCC, KEMA

Constructions

Conductor: Circular stranded copper conductor, conforms to IEC 60228 class 2

Insulation: XLPE/A

Inner Covering: LSOH

Sheath: LSOH , black

Note: Insulation color as per standards or customer requirement

Applications

Used for tall building, Hospital, Theatre, Power station, Metro Tunnel or Petrochemical Industry or other special place required for low smoke , zero halogen clean and safe cable.

Standards

International: IEC 60502, IEC 60227 IEC 60331, IEC 601034

China: GB/T 12706-91 GB306.1-2001, GB/T18380.3-2001

Other standards such as BS,DIN and ICEA upon request 

.Typical Drawing

Technical data

Rated voltage: 0.6-KV

Max. Conductor Temp.: normal (90ºC), short circuit no more than 5 s (the highest temperature of conductor shall no more than 250ºC )

Min. Ambient Temp.:The cable shall be pre heated if the ambient temperature is below 0ºC

Min. Bending Radius: single core cable 20(d+D)±5%

                    Multi-core cable 15(d+D)±5%