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Power flexible cables with polyurethane oversheath

Power flexible cables with polyurethane oversheath

TU U 31.3-31850229-003-2002
IEC 60501-1 (1998-11)

 

Application

KVGP ()0.66 kV

Cables are designated to connect movable devices or electroconductive installations to power systems at bending’s with radius no less 8 diameters, at ambient temperature from -40 C to +50 C.

KVGP cables are resistant to abrasion.

 

Construction

Conductors
Multicore copper round stranded conductors (equal to or more than class 5 in accordance with GOST 22483-77).

Insulation of main and auxiliary conductors
Polyvinylchloride (PVC) compound.

Auxiliary conductors
Conductors cross-section area 6 mm are twisted together with polyethylene terephthalate film winding.

Cable core
Three main conductors and three auxiliary conductors in polyethylene terephthalate film winding twisted around insulated bundle (bundle is based polyester thread) for cables with auxiliary conductor cross-section area 6 mm.
Three main conductors and three auxiliary conductors twisted the next but one around insulated bundle (bundle is based polyester thread) for cables with auxiliary conductor cross-section area 10 mm and 16 mm.

Oversheath
Inner oversheath is made from polyvinylchloride (PVC) compound.
Outer oversheath is made from polyurethane.

Technical characteristics

Number and nominal conductors cross-section:

Number of conductors Nominal conductors cross-section, mm
main conductor auxiliary conductors main conductor auxiliary conductors
3 3 25; 35 6.0 - 16

Other number and cross-section of insulated conductors may be delivered upon request.

Conductors resistance of conductors calculated for 1 km at 20 C complies:

  • at acceptance and delivery - with GOST 22483-77;
  • for operational and storage period – no more 110% from normalized at acceptance and delivery of cable.

Insulation resistance calculated for 1 km at 20 C is at least:

  • at acceptance and delivery – 50 MOhm;
  • for operational and storage period – 0.05 MOhm;

Cables endure AC voltage test and 50 Hz frequency during 5 minutes as follows:

  • 2.5 kV - at acceptance and delivery for multicore cables without immersing in water, and for single-core cables with immersing in water;
  • 1.5 kV - for operational and storage period.

Cables must resist to multiple alternating bending on angle 180 degrees at nominal tensile force 49 H and weathering min. 8000 bend cycles at bending radius 500 mm.

Bundle (bundle is based polyester thread; carrying cable) carry load min. 2500 H.

Cables are resistant to abrasion.

Cables are flame retardant with a single laying.

Cables can be laid provided they are not exposed to mechanical damages and direct sun.

Cables resist destructive effect of lubricating oils and diesel oil.

Manufactured cable length:

  • manufactured cable length must be min. 200 m for cables with main conductor cross-section 25 mm;
  • manufactured cable length must be min. 250 m for cables with main conductor cross-section 35 mm.

Protractedly permissible temperature for the conductors heating: min. 70 C.

Stretching force on a cable for 1 mm of the total conductors area is max. 19.6 H.

Minimum permissible bending radius of the cable at installation and routing must equal to min. 8 outer diameters of the cable.

Guarantee period: 6 months from the commissioning date but not later than 12 months as from the date of production.

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: min. 4 years.

All products are certified.


Technical Data (reference values)

Number and nominal conductors cross-section, mm Rated voltage, kV Nominal overall diameter, mm Weight of 1 km cable, kg
325+36.0 0.66 34.0 1833
325+310 0.66 37.0 2198
335+36.0 0.66 34.9 2122
335+310 0.66 39.7 2633
335+316 0.66 39.7 2761

©
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