You can buy the identical standard from your country’s representative:
The standard eliminates the old distinction between "type-tested" (TTA) and "partially type-tested" (PTTA) assemblies, replacing them with three equivalent verification methods: Verification by Testing : Physical tests conducted on representative samples. Verification by Calculation/Measurement iec 61439-6 pdf
Manufacturers must perform:
: Ensures safe distances to prevent electrical arcing. For example, systems typically require an air clearance of at least iTeh Standards Verification & Testing You can buy the identical standard from your