5SIPROTEC 4/5, Injection Unit 7XT71, Product Information
C53000-B1174-C128-7, Edition 09.2016
3 Used Symbols
Table 3-1 Used Symbols
No. Symbol Description
1 Direct current
IEC 60417-5031
2 Alternating current
IEC 60417-5032
3 Direct and alternating current
IEC 60417-5033
4 Three-phase alternating current
5 Ground (earth)
IEC 60417-5017
6 Protective conductor
IEC 60417-5019
7 Caution, risk of electric shock
8 Caution, risk of danger
ISO 7000-0434