| Srl | Design Verification Characteristic | IEC 61439 Clause | Verification by TESTING | Verification by CALCULATION | Verification by DESIGN-RULES |
|---|---|---|---|---|---|
| Construction | |||||
| 1 | Strength of materials and parts | 10.2 | |||
| Resistance to corrosion | 10.2.2 | Yes | No | No | |
| Properties of insulating materials | 10.2.3 | ||||
| Thermal stability | 10.2.3.1 | Yes | No | No | |
| Resistance of insulating materials to normal heat | 10.2.3.2 | Yes | No | No | |
| Resistance to abnormal heat and fire due to internal electric effects | 10.2.3.3 | Yes | No | No | |
| Resistance to ultra-violet (UV) radiation | 10.2.4 | Yes | No | No | |
| Lifting | 10.2.5 | Yes | No | No | |
| Mechanical impact | 10.2.6 | Yes | No | NO | |
| Marking | 10.2.7 | Yes | No | No | |
| 2 | Protection category of enclosures | 10.3 | Yes | No | Yes |
| 3 | Clearances and Creepage distances | 10.4 | Yes | Yes | Yes |
| 4 | Protection against electric shock and integrity of protective circuits | 10.5 | |||
| Effective continuity between the exposed conductive parts of the ASSEMBLY and the protective circuit | 10.5.2 | Yes | No | No | |
| Effectiveness of the assembly for external faults | 10.5.3 | Yes | Yes | Yes | |
| 5 | Incorporation of switching devices and components | 10.6 | No | No | Yes |
| 6 | Internal electrical circuits and connections | 10.7 | No | No | Yes |
| 7 | Terminals for external conductors | 10.8 | Y | ||
| Performance | |||||
| 8 | Dielectric properties | 10.9 | |||
| Power-frequency withstand voltage | 10.9.2 | Yes | No | No | |
| Impulse withstand voltage | 10.9.3 | Yes | No | Yes | |
| 9 | Temperature-rise limits | 10.10 | Yes | Yes | Yes |
| 10 | Short-circuit withstand strength | 10.11 | Yes | Yes | Yes |
| 11 | Electromagnetic compatibility (EMC) | 10.12 | Yes | No | Yes |
| 12 | Mechanical operation | 10.13 | Yes | No | No |
Mechanical properties of fasteners – Bolts
Mechanical properties of fasteners made of carbon steel and alloy steel ISO 898, with respect to Bolt class, Bolt Material, Proof Strength, Tensile Strength