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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. RIV at 1 MHz
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 22,000 11,000 10.0 / 255 5.75 / 146 12.6 / 320 80 50 125 130 130 10 50
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
MG525ZF 52-5 J 30,000 15,000 10.0 / 255 5.75 / 146 17.5 / 445 100 60 140 140 130 10 50
MG525ZA 52-5 J 30,000 15,000 15.0 / 380 5.75 / 146 14.4 / 365 80 50 125 125 130 10 50

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