AIZ-110-S
The bus- bar supports of outdoor application AIZ-110-S are used for fixation of two aluminium tubular buses of rigid bus- bars at 110 kV voltage and current frequency to 60 Hz in open distribution devices of electric power stations and substations.
Bus-bar supports are made in climatic design UHL, category 1 according to GOST 15543.1-89 and GOST 15150-69, in which:
- altitude above sea level not more 1000 m;
- thickness of the crust of ice less than 20 mm;
- wind speed in glaze condition to 15 m/s;
- wind speed in the absence of glaze to 40 m/s;
- environment value of temperature of air + 40 °C;
- environment value of temperature of air - 60°C.
Environment not explosive, the content of corrosion-active agents must comply with the atmosphere requirements I and II according to GOST 15150-69.
Decoding of bus-bar symbols:
AIZ-X1-X2X3-X4-UHL1,
AIZ- trade mark of bus-bar supports,
X1- nominal voltage in kV,
X2- index, which shows standard performance of bus-bar support (S- for fixation of two aluminium tubular buses),
X3- conditional diameter of aluminium bus,
X4- pollution degree by GOST9920,
UHL- pollution performance by GOST 15150, installation category by GOST15150.
Variants of performance are introduced in table 1.
Table 1
Type of bus-bar support of rigid bus-bar |
Dimension L, mm |
Diameter of tube of rigid bus-bar, mm |
Conventional diameter of tubular bus |
Spacing, H, mm |
Weight, kg |
AIZ-110-S50-4 UHL1 |
870 |
50/45 |
50 |
1280 |
43,5 |
AIZ-110-S60-4 UHL1 |
870 |
60/54 |
60 |
1290 |
44,6 |
AIZ-110-S70-4 UHL1 |
870 |
70/64 |
70 |
1315 |
45,0 |
AIZ-110-S80-4 UHL1 |
870 |
80/72 |
80 |
1320 |
46,0 |
AIZ-110-S90-4 UHL1 |
870 |
90/80 |
90 |
1320 |
47,2 |
AIZ-110-S100-4 UHL1 |
870 |
100/90 |
100 |
1325 |
48,0 |
AIZ-110-S110-4 UHL1 |
870 |
110/100 |
110 |
1325 |
48,5 |
AIZ-110-S120-4 UHL1 |
870 |
120/110 |
120 |
1335 |
50,0 |
AIZ-110-S130-4 UHL1 |
870 |
130/116 |
130 |
1345 |
53,0 |
AIZ-110-S140-4 UHL1 |
870 |
140/120 |
140 |
1350 |
54,0 |
AIZ-110-S150-4 UHL1 |
870 |
150/136 |
150 |
1350 |
55,0 |
AIZ-110-S170-4 UHL1 |
870 |
170/156 |
170 |
1370 |
58,0 |
AIZ-110-S200-4 UHL1 |
870 |
200/180 |
200 |
1400 |
124,0 |
AIZ-110-S250-4 UHL1 |
870 |
250/230 |
250 |
1440 |
132,0 |
Main technical characteristics
Technical specifications |
Value |
Rated voltage, kV |
110 |
Maximal working voltage, kV |
126 |
Test voltage of full lightning impulse, kV |
450 |
50%-ing discharge voltage of industrial frequency in polluted and humid condition, kV
-when the specific surface conductivity of the layer of pollution, mkSm |
110 |
Minimal breaking load on bend, kN, not less |
10 |
The minimal breaking torque, not less, kN*m |
1 |
Creepage distance, cm |
280 |
The highest peak of the rated short time withstand current (current of electrodynamic resistance), kA |
40 |
Acceptable traction of buses in the horizontal plane of bus-bar supports in the place of bus fixation, N |
1480 |
Dimensions of bottom flange, mm |
Diam. 178* 4hols.diam.18 |