Three Core XLPE Insulation Steel Wire Armoured PE Sheathed Medium Voltage Cable

Specification1. ScopeThe 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, Dongfeng Cable can supply XLPE insulation cables according to other recognized national and international standards or customized specification.2. Construction and Material1) ConductorConductors are normally class 2 of compacted cicular or circular standard conductors of copper or aluminium. 2) Conductor ScreenAll 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) InsulationInsulation is a layer of extruded cross-linked polyethylene(XLPE).4) Insulation ScreenFor 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 ArmorThe 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 SheathAll 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 . Cable Marking(Customized) The following information are indicated on the surface of the outer sheath. However, the marking can also be customized.----voltage rating, area for cable----manufacturer's name----year of manufacturer----lengther for cable----etc 1 Informationa, Number of cores:1,  2,  3,   3+1,   3+2,    3+3,  4,    4+1,    4+2,   5 and so on.b, Construction:Conductor: Solid or stranded copper Insulation: Cross-linked polyethylene (XLPE) or Polyvinyl chloride (PVC) Filler: Polypropylene filament with lapped binding tape Binder: Binding tape Inner sheath: Polyvinyl chloride (PVC) Armor: Galvanized steel wire armored(SWA) or steel tape armored(STA) Sheath: Polyvinyl chloride (PVC) c, Nominal Section Area(mm2) :1.5 2.5 4 6 10 16 25 35 50 70 95 120 150 185 240 300 400 500 630 800d, Features XLPE  insulated power cable does not have excellent electric, mechanical properties, but also has powerful resistance against chemical corrosion, heat resistance and environmental stress resistance. Its structure is simple. The long period operating temperature is +90 °C. It is convenient to use and can be laid with no restriction on different levels.XLPE insulated steel wire armored power cable: XLPE/PVC insulated power cable has a number of advantages over paper insulated and PVC insulated cable. XLPE cable has high electric strength, mechanical strength, high-aging resisting, environmental stress resisting antichemical corrosion, and it is a simple construction, using convenient and higher operating of long term temperature. It can be laid with no drop restriction. Various flame-retardant and non-flame retardant XLPE cable can be manufactured with three technology(peroxide, silane and irradiation cross-linking). The flame-retardant cable covers all kinds of low-smoke low-halogen low-smoke halogen-free, and non-smoke nonhalogenated and three classes of A, B, C. 2 Standard:IEC60502,and BS6346, VDE, AS/NZS, UL,etc or as customer's request. 3 The Rated Voltage(kv):1st class 0.6/1 1.8/3 3.6/6 6/10 8.7/15 12/20 18/30 21/35 2nd class 1/1 3/3 6/6 8.7/10 12/15 18/20 - 26/35 4 Application:1)These cables are most suitable for direct burial or for installation on trays or ducts,  Where there isrisk of mechanical damage, armored cables should be used.2) For laying in the ground along the route with large difference of level able to bear external mechanical forces.3.Typical Drawing4. TestsThe finished cables meet all the appropriate test requirments specified in IEC60502.5.PackingRange of Business: CablesLow Voltage Pow