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Power cables with XLPE oversheath

Power cables with XLPE oversheath

GOST 16442-80
IEC60502?1 (1998-11)

 

Application

PvVG, APvVG, PvBbSHv, APvBbSHv
(B, , , )
0.66 kV, 1 kV

Cables are designated for power supply and distribution in fixed installations with rated AC voltage 0.66 kV, 1 kV at frequency 50 Hz at ambient temperature from -50 C to +50 C and relative humidity up to 98% at temperature up to 35 C, cables are intended for laying in outdoors including.

 

Construction

Conductors
Copper or aluminum round single-wire or multicore conductors (class 1 in accordance with GOST 22483-77).
Copper or aluminum multicore sector-shaped conductors.

Insulation
Insulation of cross-linked polyethylene (XLPE).

Oversheath
Polyvinylchloride (PVC) compound.

Core wrapping for armoured cables
Polyvinylchloride (PVC) compound.

Covering «BbSHv»
Armour is made from 2 galvanized steel tapes and PVC compound oversheath is applied over wrapping.

Technical characteristics

Cable Number of conductors Nominal conductor cross-section, mm
0.66 kV 1 kV
PvVG 1, 2, 3, 4 1.5 – 50 1.5 – 240
APvVG 1, 2, 3, 4 2.5 – 50 2.5 – 240
PvBbSHv, APvBbSHv 2, 3, 4 4.0 – 50 6.0 - 240

Electric resistance of conductors to DC complies with GOST 22483-77.

Insulation resistance of main conductors calculated for 1 km at 20 C is at least 150 MOhm.

Electric resistance of conductors to DC for 1 km at 20 C is at least 50 MOhm.

Cables endure AC voltage test and 50 Hz frequency during 10 minutes:

  • 3.0 kV – for cables at rated voltage 0.66 kV;
  • 3.5 kV – for cables at rated voltage 1 kV;

Cables are flame retardant with a single laying.

Manufactured cable length for cables:

  • manufactured cable length must be min. 450 m for cables with main conductor cross-section 1.5-16 mm;
  • manufactured cable length must be min. 300 m for cables with main conductor cross-section 25-70 mm;
  • manufactured cable length must be min. 200 m for cables with main conductor cross-section 95-240 mm.

Minimal temperature of cable laying without pre-heating: -15 C.

Minimum permissible bending radius of the cable at installation and routing must equal to min. 10 outer diameters of the cable for single-core cable, and min.7.5 outer diameters of the cable – for multicore cables.

Protractedly permissible temperature for the conductors heating: 90 C.

Maximum permissible temperature for the conductors heating in short circuit mode: 250 C.

Duration of short circuit mode: max. 4 seconds.

Maximum permissible temperature for the conductors heating in emergency mode: 80 C

Operation time of cables in emergency mode do not should be more than 8 hours in 24 hours, or no more than 1000 hours during all service life.

Guarantee period: 5 years from the commissioning date.

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.

Service life: 30 years.

All products are certified.


Permissible current loads and permissible short-circuit currents for cables with copper conductors at rated voltage 0.66 kV and 1 kV:

Nominal conductor cross-section, mm Permissible current loads, A Permissible short-circuit currents, kA
Single-core cables Double-core cables Three-core cables *
above ground under ground above ground under ground above ground under ground
1.5 29 32 24 33 21 28 0.17
2.5 40 42 33 44 28 37 0.27
4 53 54 44 56 37 48 0.43
6 67 67 56 71 49 58 0.65
10 91 89 76 94 66 77 1.09
16 121 116 101 123 87 100 1.74
25 160 148 134 157 115 130 2.78
35 197 178 166 190 141 158 3.86
50 247 217 208 230 177 192 5.23
70 318 265 226 237 7.54
95 386 314 274 280 10.48
120 450 358 321 321 13.21
150 521 406 370 363 16.30
185 594 455 421 406 20.39
240 704 525 499 468 26.80

* The same and for four-core cables with neutral conductor lower cross-section. For determining of current loads (four-core cables) which are equal to cross-section of four-wire networks in all loads in normal mode this loads must be multiplied by 0.93 coefficient.

Permissible current loads and permissible short-circuit currents for cables with aluminum conductors at rated voltage 0.66 kV and 1 kV:

Nominal conductor cross-section, mm Permissible current loads, A Permissible short-circuit currents, kA
Single-core cables Double-core cables Three-core cables *
above ground under ground above ground under ground above ground under ground
2.5 30 32 25 33 21 28 0.18
4 40 41 34 43 29 37 0.29
6 51 52 43 54 37 44 0.42
10 69 68 58 72 50 59 0.70
16 93 83 77 94 67 77 1.13
25 122 113 103 120 88 100 1.81
35 151 136 127 145 109 121 2.50
50 189 166 159 176 136 147 3.38
70 233 200 167 178 4.95
95 284 237 204 212 6.86
120 330 269 236 241 8.66
150 380 305 273 274 10.64
185 436 343 313 308 13.37
240 515 396 369 355 17.54

* The same and for four-core cables with neutral conductor lower cross-section. For determining of current loads (four-core cables) which are equal to cross-section of four-wire networks in all loads in normal mode this loads must be multiplied by 0.93 coefficient.

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2003–2017 CJSC Production Association Berdyansk Cable Plant
71101, Ukraine, Zaporozhye region,
Berdyansk, Promyshlennaya St., 2b
Phone: +380-6153-20000 (reception)
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