Manufacturing technology
Longrod Insulators
Post Insulators
Hollow Core Insulators
Medium Voltage Insulators
Porcelain longrod insulators are produced according to international standards and customer specifications. They are used in power transmission lines and available up to 400 kN mechanical tensile load. Lappīs design experts are also capable of designing complete insulator strings including hardware accessories. Porcelain longrod insulators are also available with silicone rubber coating for improved pollution layer performance.
Dimensions
voltage class 1 - 1100 kV (> 170 kV in strings)
maximum length 2000 mm
core diameter 45 - 115 mm
flexible creepage distances up to 50 mm / kV
end fittings complying to IEC 60120, 60471 and DIN 48006
special types available
Production Method
wet turning process
C130 high strength alumina porcelain
glaze colours brown RAL 8017 and grey ANSI 70
Experience
since 1930
Specifications
IEC 60433, IEC 60383, IEC 60672
Factories
Wunsiedel
Jedlina Zdroj
Turda
Application
suspension and tension towers in high voltage power lines and railway systems
