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Qualified FGC UES
HV glass suspension insulator of U120B type with extended protrusion of the rib

Designed for isolating and fixing the wire sand ground wire of overhead transmission lines, in switchgear power stations and AC substations with voltage more than 1000 V and frequency up to 100 Hz, at an ambient temperature from –60°C to +50°C. 
 

Minimum mechanical failing loadkN120
Minimum mechanical residual strengthkN96
Diameter of the insulating part, Dmm255
Spacing,Hmm146
Nominal creepage distancemm407
Ball and socket coupling, , d (IEC 60120) 
mm16
Puncture voltage in insulating mediumkV130
50 Hz withstand voltage (dry) kV72
50 Hz withstand voltage (wet) kV42
Dry lightning impulse withstand voltage 1,2/50 +/-kV110/110
Impulse puncture test in airkV265...290
Radio interference voltage at 0,5 MHzdB60 
kV20
dB86
kV30
Weightkg4.6

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