NGK suspension (disc) insulators meet the requirements and tests of the following standards.
| 60060-1 | High-voltage test techniques, Part 1: General definitions and test requirements |
|---|---|
| 60120 | Dimensions of ball and socket coupling of string insulator units |
| 60305 | Characteristics of insulator units of the cap and pin type |
| 60383-1 | Insulator units - Definitions, test methods and acceptance criteria |
| 60383-2 | Insulator strings - Definitions, test methods and acceptance criteria |
| 60437 | Radio interference test on high-voltage insulators |
| 60471 | Dimensions of clevis and tongue coupling of string insulator units |
| 60507 | Artificial pollution tests on high-voltage insulators to be used on a.c. systems |
| 60575 | Thermal-mechanical performance test |
| 60797 | Residual strength of string insulator units |
| 60815 | Guide for the selection of insulators in respect of polluted conditions |
| 61211 | Puncture testing |
| 61245 | Artificial pollution tests on high-voltage insulators to be used on d.c. systems |
| 61325 | Insulator units for d.c. systems - Definitions, test methods and acceptance criteria |
| C29.1 | Electrical power insulators - test methods |
|---|---|
| C29.2 | Wet-process porcelain and toughened glass - suspension type |
| C411.1 | AC suspension insulators |
|---|
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