1. Type
2.1 Type Inspection:
“3+1” Group: “3+1”—1, “3+1”—2, “3+1”—3, “3+1”—4, “3+1”—5, “3+1”—6
“P+1” Group: “P+1”—1, “P+1”—2, “P+1”—3
2.2 Type
Table 1 “3+1” Group SPD
Group No. |
“ 3 ” |
“ 1 ” |
“3+1”—1 |
BY4-100/3N-385 |
BY2-60/4.0 |
“3+1”—2 |
BY4-100/3N-320 |
BY2-60/2.5 |
“3+1”—3 |
BY1-B/3N-320-30 |
BY2-30/2.5 |
“3+1”—4 |
BY1-C/3N-320-20 |
BY2-30/2.5 |
“3+1”—5 |
BY1-C/3N-320-20 |
N-PE-1 |
“3+1”—6 |
BY1-D/3N-275-5 |
N-PE-2 |
Table 2 “P+1” Group SPD
Group No. |
“ 3 ” |
“ 1 ” |
“P+1”—1 |
BY1-B/1-320-30 |
N-PE-1 |
“P+1”—2 |
BY1-C/1-320-20 |
N-PE-2 |
“P+1”—3 |
BY1-D/1-275-5 |
N-PE-3 |
2. Technical Parameters
Table 1
Group No. |
“3+1”—1 |
“3+1”—2 |
“3+1”—3 |
“ 3 ” |
BY4-100/3N-385 |
BY4-100/3N-320 |
BY1-B/3N-320 |
“ 1 ” |
BY2-60/4.0 |
BY2-60/2.5 |
BY2-30/2.5 |
Maximum continuous operating
voltage Uc |
L/N-PE |
385V |
385V |
385V |
L-N |
385V |
320V |
320V |
Voltage protective
level Up |
L/N-PE |
< 4.0kV |
< 2.5kV |
< 2.5kV |
L-N |
< 3.0kV |
< 2.5kV |
< 2.5kV |
Nominal discharge current
In(8/20μs) kA |
L/N-PE |
100kA |
100kA |
100kA |
L-N |
60kA |
60kA |
30kA |
Maximum discharge current
Imax (8/20μs) kA |
N-PE |
100kA |
100kA |
60kA |
Impulse current limp (10/350μs) kA |
N-PE |
60kA |
60kA |
30kA |
Table 2
Group No. |
“3+1”—4 |
“3+1”—5 |
“3+1”—6 |
“ 3 ” |
BY1-C/3N-320-20 |
BY1-C/3N-320-20 |
BY1-D/3N-275-5 |
“ 1 ” |
BY2-30/2.5 |
N-PE-1 |
N-PE-2 |
Maximum continuous operating
voltage Uc |
L/N-PE |
385V |
385V |
385V |
L-N |
320V |
320V |
275V |
Voltage protective
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