AIZ-220-B...-4 UHL1 .. Product #: based on 0 Reviews Regular price: $0.00 $0.00

AIZ-220-B...-4 UHL1

Bus- bar supports are made on the basis of polymer rod insulators which are intended in applying in bus-bar supports. There was used special design and construction for the bus-bar support. Factory does not recommend applying the standard insulators as insulated supports of distribution devices. Bus-bar supports AIZ are applied for opened distribution devices of electric power stations and substations of alternative currents with 6-220 and kV voltage 50 Hz frequency. Insulators are made in accordance to IEC 62231 standard and Technical specifications TS3494-005-59116459-05 ,,Bus-bar supports for the 10-220 kV voltage”. The monolithic core of insulator of bus-bar support eliminates possibility of internal discharge and breakdown, unlike tubes filled with foam, as well as leakage of current in internal cavity and on the wall of tube as consequence of condensation in contrast to hollow tubes. Flanges of bus-bar supports are made from cast high-strength aluminium alloys. Absence of welds in flanges allows applying insulators in the conditions of low temperature in Siberia Thanks to the silicone adhesive coating on the insulating body of the bus-bar support useful service life- 30 years; high firmness to influence of acids and alkalis, to an ultra-violet exposure; resistance to erosion and tracking; high hydrophobic properties; light weight; more resistible for acts of vandalism; ensures safety conditions even during installation and exploitation works.
 
AIZ – brand of polymer bus-bar supports
220 – nominal voltage, Kv
B – modification of bus bar support for one wire
1.2.3.4 – modification according cross section and type of wire
4- pollution level according GOST 9920, IEC60815, IEC60694
UHL1 – climate design and category of spacing according to GOST 15150, IEC60721, IEC60068
 
 
 
 
TECHNICAL CHARACTERISTICS
Nominal voltage, kV 220
Highest working voltage, kV 252
Minimum lightning impulse withstand voltage, kV 950
50%- discharge voltage of industrial frequency at polluted and humid conditions, kV 220
For specified surface conductivity of polluted layer, mkCm 10
Minimal falling load at bending, kN 8
Minimum falling torsion moment, kNxm 1
Minimal creepage distance, сm 570
The highest peak of the nominal short-term withstand current (current of the electrodynamic stability), kA 100
Permissible tension of wires in horizontal plane of bus- bar supports for connecting of wires, N 1480
Number of bus-bar mounted 2
Bottom flange fitting dimmensions, mm Ø225x4hol.Ø18
Weight, not more than, kg see table