the voltage between a part of an electrical installation connected to an earthing system, and points on the earth at an adequate distance (theoretically at an infinite distance) from any earth electrodes
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FR: tension par rapport ? la masse [T60988]
DE: Spannung gegen Erde [T60988]
FI: jännite maata vastaan [T60988]; maadoitusjännite [TEPA]
The sides and the rear and, where necessary, the front of switchboards shall be suitably guarded. Exposed live parts having voltages to earth exceeding the voltage specified under 1.1 shall not be installed on the front of such switchboards.
