Ceramic unreinforced covering for electric separators (gas treatment). P 620/340 UHL, T2 (3068-C) – for apparatus with a voltage of 80 kV.
| Covering nam | Designation of the drawing | GOST, TU, IEC | Voltage class, kV | The length of the insulation distance is not less than, cm | Operating force while bending, kg | Test force at bending, kN | N, mm | D outer, mm | Weight, kg | Rough drawing | |
| nom. | prev. deviation ±10% | ||||||||||
| П 1000/450 О | НИЮД. 757513.015 |
GOST 5862-79 | 140 | — | 3560 | — | 1000 | 520 | 131 | 1,31 |  |
| П 500/450 О | НИЮД. 757513.033 |
GOST 5862-79 | — | — | 3560 | — | 500 | 520 | 65,5 | 6,55 | |
| П 620/340 УХЛ,Т2 | ИШУМ. 757523.006 (3068-С) |
GOST 5862-79 | 80 | — | — | 10 | 620 | 390 | 40,0 | 4,0 | |
Interpretation of the conventional value of a covering type:
P – covering;
Numerator of the fraction is the height of a covering, mm;
Denominator of the fraction is the maximum inner diameter of a covering, mm;
UHL, T – for operating in a moderate, cold or tropical weather;
2 – placement category (operating under a shelter or in unheated premises)