Appendix; Key Terms And Definitions (According To Din Vde 0100-200) - Siemens SENTRON Manual

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9. Appendix

9.1

Phase conductors (symbol L1, L2, L3)

Conductors that connect current sources to current-using equipment but that do

not originate at the center point or neutral point.

Neutral conductor (symbol N)

Conductor that is connected to the center point or neutral point and that is

suitable for transmitting electricity.

Protective conductor (symbol PE)

Conductor required for certain protective measures against hazardous electric

shock currents in order to establish an electrical connection with one of the

following parts:

• Exposed conductive part of the electrical equipment

• External conductive parts

• Main ground terminal

• Ground electrode

• Ground point of the current source or artificial neutral point

PEN conductor

Grounded conductor that simultaneously functions as the protective conductor

and the neutral conductor.

Rated voltage (in an installation)

Voltage that characterizes an installation or part of an installation.

Touch voltage

The voltage that can occur between two simultaneously exposed components in

the event of an insulation fault.

Live part

Conductor or conductive part that is intended to be live during normal operation,

including the neutral conductor but (according to agreement) not the PEN

conductor.

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