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Power cables with XLPE insulation and PVC flame-retardant oversheath with low smoke and gas emission, including armoured

Power cables with XLPE insulation and PVC flame-retardant oversheath with low smoke and gas emission, including armoured

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

 

Application

Power cables with XLPE insulation and PVC flame-retardant oversheath with low smoke and gas emission, including armoured: PvVngLS, PvVngLS (LS, LS)

Single-core cables: PvBaVngLS, PvBaVngLS, PvKaVngLS, PvKaVngLS (LS, LS, LS, LS)

Three-core cables: PvBVngLS, PvBVngLS, PvKVngLS, PvKVngLS (LS, LS, LS, LS)

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

These cables are intended for transmission and power distribution in stationary installations of medium voltage and for networks with grounded and insulated neutral.

These cables are intended for stationary laying in premises, in cable constructions. Cables are designated for stationary installation in bundles laying in workings.

Ordering designation of cable: PvBVngLS – 6/10 kV 3×185/35.

Conformity the foreign-made analogues:
N2XSY, N2XSEY (2XSY, 2XSY), NA2XSY, NA2XSEY (A2XSY, A2XSY), NA2S2Y, N2S2Y, 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 paper tape or electroconductive synthetic tape must be applied over electroconductive core screen of single-core and three-core cables with round conductors and also cable core with sector-shaped conductors.

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 glass tape is laid over copper screen of unarmoured single-core and three-core cables with sector-shaped conductors.

Inner sheath
Inner sheath is made of low risk-of-fire polyvinylchloride (PVC) compound for cables with «ngLS» designation or low level of smoke, halogen-free PVC compound for cables with «ngLSHF».

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.

Oversheath
Oversheath is made from low risk-of-fire polyvinylchloride (PVC) compound for cables with «ngLS» designation and low level of smoke, halogen-free PVC compound for cables with «ngLSHF».

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 -30 °C up to + 50 °C
Relative humidity at ambient temperatures up to (35±2) °C 98%
Minimal temperature of cable laying without pre-heating -15 °C
Allowed cable laying after pre-heating from -15 °C up to -30 °C
Maximum permissible temperature for the conductors heating:
  • protractedly
  • in emergency mode
  • in short circuit mode



+90 °C
+130 °C
+250 °C

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».

These cables have flame-retarding ability when laid in bundles in accordance with 4.2 DSTU 4809, DSTU 4237 – 3 – 22 (category A).

On customers request are made cables with a low level of smoke, halogen-free PVC compound with «ngLSHF» designation for use at sites where there are special requirements to low emission of corrosive gases.

Manufactured cable length may be agreed with the customer request.

On customers request is made cables with PVC oversheath with longitudinal (index «g») and double screen sealing (longitudinal and transverse - index «2g») and longitudinal sealing of conductors.

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.


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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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