33SIPROTEC 4/5, Injection Unit 7XT71, Product Information
C53000-B1174-C128-7, Edition 09.2016
12.2 Test Data
12.2.1 Electrical Tests
Standards
Installation Requirements
Insulation Test and Safety Test
Standards: IEC 60255-26 (product standard)
IEEE Std C37.90
For more standards see also individual
functions
Overvoltage category III
Degree of pollution 2
Protection class 1
Standards: IEC 60255-27
High voltage test (routine test)
Output: Terminals 1, 2 against
all others terminals
DC 5.8 kV
High voltage test (routine test)
Auxiliary voltage: Terminals 17, 18,
case against all others terminals
DC 3.5 kV
High voltage test (routine test)
Outputs: Terminals 7 to 14 against all
others terminals
DC 2.5 kV
Impulse voltage test (type test),
output and auxiliary voltage, class III
6 kV (peak);
1.2 µs/50 µs; 0.5 J;
3 positive and 3 negative impulses at inter-
vals of 5 s
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