Cap for porcerlain insulator -Socket type
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Fitting
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- Standard: IEC 60120, ANSI C29.2;
- Coupling: Ball & Socket;
- Mechanical class: 040-550KN;
- Material: Malleable cast iron EN-GJMB 350-10 -EN 1562;
Ductile cast iron EN-GJS 450-12 or 400-18 , EN-GJS 400-20LT– EN1563;
- Manufacturing process: Casting;
- Surface: Hot dip galvanizing -ISO 1461, IEC60383;
- Coating thickness:
N (Normal),87um (Each piece),107um ( total sampling);
G (Reinforced),114um (Each piece),128um ( total sampling);
S (Super reinforced),127um (Each piece),140um (total sampling);
- Zinc adhesion test: Pivoted hammer - ASTM A123;
- Zinc collar: With or without on request
and min.90% area bonded to cap base;
- Low temperature properties:
Charpy impact absorption average on 3 samples ≥ 12 J
at -40℃- ASTM A370/EB 10045-1;
- Whole process in house control from raw material,
in-process and to before shipment;
- 100% magnetic particle inspection.
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