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Power cables with XLPE insulation, longitudinal screen sealing and polyethylene or reinforced polyethylene oversheath, including armoured

Power cables with XLPE insulation, longitudinal screen sealing and polyethylene or reinforced polyethylene oversheath, including armoured

TU U 27.3-31850229-032:2014
IEC 60502-2

 

Application

Power cables with XLPE insulation, longitudinal screen sealing and polyethylene or reinforced polyethylene oversheath, including armoured: PvPg, PvPug, APvPg, APvPug (, , , )

Single-core power cables: APvBaPg, PvBaPg, APvKaPg, PvKaPg (, , , a)

Three-core power cables: APvBPg, PvBPg, APvKPg, PvKPg (, , , )

3.6/6; 6/10; 8.7/15; 12/20; 18/30 kV

These cables are intended for laying in premises, in ducts, channels and places where mechanical impacts on cables, including stretching forces, might be possible. Also these cables can be used for installation on lines of complicated configuration.

Cables with screen sealing are used undergrounds with increased moisture and in partially flooded premises.

Ordering designation of cable: APvBPg – 12/20 kV 3×120/16.

Conformity the foreign-made analogues:
N2XS(F)2Y (2XS(F)2Y); N2XS(F)2Y (2XS(F)2Y), VDE 0276-620:1996 (HD 620 S1, 5, 6)

 

Construction

Conductors
Copper or aluminum round compacted or sector-shaped conductor (class 2 in accordance with GOST 22483)

Screen overlying of electroconductive core screen
Extruded electroconductive cross-linked polymer composition.

Insulation
Insulation of cross-linked polyethylene (XLPE).

Screen over insulation
Extruded electroconductive cross-linked polymer composition.

Separation layer
A layer of electroconductive water-blocking tape.

Copper wires screen stranded copper tape
Copper wires screen. Spiralled copper tape or copper wires skein must be laid over copper wires.

Separation layer
Separation layer of water-blocking tape is laid over copper screen of single-core cables.

Inner sheath
The inner sheath must be compatible with insulation material and oversheath for three-core cables (armoured and unarmoured) and single-core armoured cables.

Armour
For three-core cables armour is made of galvanized steel tapes (B) or galvanized steel wires (K); armour of aluminum tape () or round wires (Ka) of aluminum or aluminum alloy – for single-core cables.
Separation layer of water-blocking tape is laid over armour.

Oversheath
Polyethylene (P).
Reinforced oversheath is made from high-density polyethylene of increased thickness (Pu).

Technical characteristics

Nominal conductor cross-section 25 – 800 mm for single-core cables
25 – 240 mm for three-core cables
Nominal screen cross-section
Possible to produce cable with a larger screen cross-section , as agreed while placing the order
16–70 mm for single-core cables
16–50 mm for three-core cables
Ambient temperature during operation cable from -60 °C up to + 50 °C
Relative humidity at ambient temperatures up to (35±2) °C 98%
Minimal temperature of cable laying without pre-heating -20 °C
Allowed cable laying after pre-heating from -20 °C up to -40 °C
Maximum permissible temperature for the conductors heating:
  • protractedly
  • in emergency mode
  • in short circuit mode



+90 °C
+130 °C
+250 °C

Hermetically sealed cables must be resistant for longitudinal propagation
of water in case of damage the oversheath.
Water penetration into the cable must not exceed in both directions from
the fault location of oversheath.
1500 mm
Minimum allowed radius of bending during cable laying:
  • single-core cables
  • multicore cables



15 diameters of cable
12 diameters of cable

The level of partial discharges no more 10 pKi
Guarantee period 5 years
Service life 30 years

Permissible current loads and permissible short-circuit currents for these cables are described in cross-section «Reference data».

On customers request is made cables with a longitudinal sealing of conductors.

Manufactured cable must be agreed with the customer request.

The manufacturer can ensure compliance of cable quality with requirements of current technical specification, provided all terms of transportation, storage, installation and use have been observed.

On customers request is allowed other marking of cable.

All products are certified.


©
2003–2021 CJSC Production Association Berdyansk Cable Plant
71101, Ukraine, Zaporozhye region,
Berdyansk, Promyshlennaya St., 2b
Phone: +380-6153-20000 (reception)
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Phantom, 2012