Steel Tape Armoured MV power cable
1.8/3 (3.6) KV CABLES XLPE INSULATED, PVC OR PE SHEATHED 1. SCOPE This specification covers single core cables and three core armoured or unarmoured cables, rated at 1.8/3 (3.6) KV conforming to IEC 60502-1 Specifications. 2. CONSTRUCTION 2.1 Conductor Plain, annealed electrolytic copper or...
1.8/3 (3.6) KV CABLES XLPE INSULATED, PVC OR PE SHEATHED
This specification covers single core cables and three core armoured or unarmoured cables, rated at 1.8/3 (3.6) KV conforming to IEC 60502-1 Specifications.
2.1 Conductor Plain, annealed electrolytic copper or Aluminium conductors, circular stranded, conforming to the applicable requirements of IEC 60228.
2.2 Insulation XLPE thermosetting material conforming to the applicable requirements of IEC 60502-1 ( flame retardant XLPE for specific applications ).
2.3 Assembly Insulated conductors are laid up, filled where necessary with non hygroscopic material, and covered with an extruded thickness of thermoplastic material, or binding tape.
2.4 Armour Two layers of steel tape, (non magnetic tape for 1 core cables) conforming to the applicable requirements of IEC 60502-1 recommendations. Flat or round wires armouring can be provided upon specific customer requirements.
2.5 Sheath PVC or PE (halogen free or fire retardant compound on special request) thermoplastic material, conforming to the applicable requirements of IE 60502-1.
All tests required by the IEC 60502-1 either on Raw material or on finished products.
CHOICE OF VOLTAGE:
The rated voltage is specified as Uo / U where :
Uo is the rated voltage between conductor and screen or outer metallic protection.
U the rated voltage between any two conductors.
In three phase systems Uo is U / 3
The voltage of the cable must be chosen according to the maximum voltage Um in
normal working conditions, which must not exceed the rated voltage by more than 20%.
The following table gives the maximum permissible operating voltage relative to each
rated voltage (Uo / U).
U o / U (Kv)
1.8 / 3
3.6 / 6
6 / 10
8.7 / 15
12 / 20
18 / 30
DETERMINATION OF THE CROSS SECTIONAL AREA:
The determination of the cross sectional area depends on the :
Current carrying capacities in continuous loading,
Permissible short-circuit current,
Conditions of installation (temperature, spacing, ...).
CURRENT CARRYING CAPACITIES
The heat produced by the cable under the set conditions must be able to dissipate to the
ambient environment at any point of the cable installation; therefore the loading of the
cable must be limited accordingly. The current carrying capacities shown in the
electrical characteristics tables are calculated according to the internationally adopted
method of the IEC publication 60287 for a maximum core temperature of 90˚C, at the
following installation conditions :
2.CABLES LAID “ IN AIR ”
For prompt quotation / supplies please make sure your inquiries and your orders are securing the following data :
1 - International or Special Standard. (Alternatively, the precise usage of the
2 - Rated voltage.
3 - Copper or Aluminium conductors.
4 - Size of each conductor.
5 - Insulation material : XLPE or others.
6 - Number and identification of conductors.
7 - Other requirements.
8 - Packing.
9 - Required delivery time.
10 - Required validity.
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Welcome to our factory !
Jiangsu Changcheng Cable Co.,Ltd
Lingtang Town,Yangzhou,Jiangsu ,China
1990,more than 25 years’ experience in cable manufacturing
Export office location
Yunhe Building,Hanjiang Area,Yangzhou,China
Our main products
Cable and electrical wires for installation
High temperature cable
Flame retardant and Fire-resistant cable