IEC 60417C:1977 Withdrawn
Third supplement.
Abstract
Earth, clean (noiseless) earth, protective earth, frame or chassis, equipotentiality, omnidirectional microphone, bidirectional microphone, unidirectional or cardioid microphone, hydrophone, underwater sound projector, reversible transducer for underwater sound, transformer, clock; time switch; timer, Morse key; electric shaver outlet.
Additional information
| Publication type | International Standard |
|---|---|
| Publication date | 1977-01-01 |
| Edition | 1.0 |
| Available language(s) | English/French, Russian |
| TC/SC | TC 3 - Documentation, graphical symbols and representations of technical informationrss |
| ICS | 01.080.10 - Public information symbols |
| Pages | 27 |
| File size | 1081 KB |
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