attempts to focus all parties involved in the provision of a low-voltage assembly on their respective responsibilities. Purchasers and specifiers are encouraged to view an assembly as a ‘black box’.
Discover what this IEC61439 'black box' concept means for assembly players, in below document :
Their prime function is to specify the inputs and outputs to the assembly and to define the interfaces between the assembly and the outside parameters.
How the assembly is configured internally and the performance of the assembly, relatively to the external parameters as defined by the purchaser or specifier, is clearly the responsibility of the manufacturer(s). They are responsible for the correct incorporation of the individual components and must ensure the design meets the specification, is fully verified and is fit for purpose.
The manufacturer, or combination of manufacturers (original manufacturer and assembly manufacturer), is/are regarded as the expert/s and must have enough knowledge of assemblies to satisfy this role.
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