Catalogs > Safety Products Catalog > Principles, Standards and Implementation > System Design According to IEC/EN 62061
System Design According to IEC/EN 62061
| System Design According to IEC/EN 62061 |  |
Subsystem Design: IEC/EN 62061 | |
Transition Methodology for Categories | |
IEC/EN 62061 Terminology Overview | |
Diagnostic Coverage (DC) | |
| Management of Functional Safety | |
Probability of Dangerous Failure (PFHD) | |
Proof Test Interval | |
Safe Failure Fraction (SFF) | |
Systematic Failure | |
The standard has requirements for the control and avoidance of systematic failure. Systematic failures differ from random hardware failures which are failures occurring at a random time, typically resulting from degradation of parts of hardware. Typical types of possible systematic failure are software design errors, hardware design errors, requirement specification errors and operational procedures. Examples of steps necessary to avoid systematic failure include:
- Proper selection, combination, arrangements, assembly, and installation of components,
- Use of good engineering practice,
- Follow manufacturer’s specifications and installation instructions,
- Ensuring compatibility between components,
- Withstanding environmental conditions,
- Use of suitable materials.
The standard provides additional and more detailed requirements needed to avoid systematic failures.