Glass Transmission Insulators

For many customers and applications, toughened glass provides a high level of performance and long-term security for high voltage insulation.

MacLean is pleased to be able to provide our customers with toughened glass insulators from stock held at our South Carolina factory. These products have been in service since 1957 with installations in a broad range of operating conditions with more than 300 utilities worldwide at voltages from 15 to 1150kV AC.

Description

For specific applications, a silicone coating can be applied to the toughened glass insulator to provide additional environmental protection and increase long-term performance.

Links & PDFs

Catalog Number ANSI Class Coupling Type Min. Mechanical Failing Load Proof Routine Test Mech. Load Shell Diameter (in/mm) Coupling Length (in/mm) Leakage Distance (in/mm) Dry Flashover kV Wet Flashover kV CIFO+ (kV) CIFO- (kV) Puncture Voltage kV RIV Test Voltage kV Max. R/V at 1 MHz
MG525Z 52-5 J 30,000 15,000 10.0 / 255 5.75 / 146 12.6 / 320 80 50 125 130 130 10 50
MG528Z 52-8 K 40,000 20,000 11.0 / 260 5.75 / 146 15.2 / 385 80 50 125 130 130 10 50
MG5211Z 52-11 K 50,000 25,000 11.0 / 280 6.14 / 156 16.9 / 428 80 50 140 140 130 10 50
MG523Z 52-3 B 20,000 10,000 10.0 / 255 5.75 / 146 12.6 / 320 80 50 125 130 130 10 50
MG300Z IEC-24 IEC-24 67,400 33,700 12.6 / 320 7.7 / 195 19.1 / 485 95 55 145 145 130 10 50
MG400Z IEC-28 IEC-28 90,000 45,000 14.2 / 360 8.1 / 205 21.7 / 550 105 60 155 155 130 10 50

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