EN 60950
EN 60950 is applicable in all countries of the European Union.
The following is a list of the major differences between this standard and IEC 60950:
Component Requirements for EN 60950 are given in
Annex ZA.
Circumstances under which protection against short circuits, excess current and earth faults can be provided in the building installation, rather than as an integral part of the product, are described in Clause
2.7.1
In addition, the following differences apply to Norway:
- Compliance with the standard for radio interference suppression is part of safety testing.
- If separation between the mains and a commmunication system/network, other than public telecommunication networks, relies upon connection to safety earth, the equipment shall have a marking
stating that it must be connected to an earthed mains socket-outlet.
- Due to the IT power systems used, mains supply voltage is considered to be equal to phase-to-phase voltage.
- Insulation between parts conductively connected to the supply mains and parts connected to a public telecommunication network shall comply with with the requirements for double or reinforced insulation.
- Supplementary insulation for a primary circuit is required between any TNV circuit and any circuit that has a connection to a protective earthing terminals.
This requirement does not apply to permanently
connected equipment or to pluggable equipment type B, installed in areas where equipotential bonding has been applied, e.g. a telecommunication Central Office.
Note: This list is not complete. Please refer to the standard itself for full information.
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