Glossary

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

d.c.

Direct Current

DCF

Time signal for radio-controlled clocks in Germany

DDC

Direct Digital Control

Degree of protection

The IP degree of protection corresponds to the protection categories described in IEC 60529.

DIN

Deutsches Institut für Normung (German Standardisation Institute)

Disconnecting time ta

The disconnecting time is the time passing until the automatic disconnection from power supply in case of a failure of the circuit or equipment to be protected. The disconnecting time is an application-specific value resulting from the intensity of the fault current and the characteristics of the protective device.

DNO

Distribution Network Operator