EN61557 Specifications
Insulation resistance maximum and minimum display values
50 V
Minimum
Limit Value
Display
Limit Value
Value
7.0
9.10
8.0
10.40
9.0
11.70
10.0
13.0
20.0
26.0
20.0
30.0
39.0
30.0
40.0
52.0
40.0
50.0
60.0
70.0
80.0
90.0
Earth bond resistance maximum display values
Limit Value
0.4
0.5
0.6
0.7
0.8
0.9
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
4 Fluke Corporation
1507/1503 Insulation Testers
100 V
Minimum
Display
Limit Value
Value
7.0
9.10
7.0
8.0
10.40
8.0
9.0
11.70
9.0
10.0
13.0
10.0
26.0
20.0
39.0
30.0
52.0
40.0
65.0
50.0
78.0
60.0
91.0
70.0
104.0
80.0
117.0
90.0
100.0
Maximum Display Value
0.28
0.35
0.42
0.49
0.56
0.63
0.7
1.4
2.1
2.8
3.5
4.2
4.9
5.6
6.3
7.0
14.0
21.0
28.0
35.0
42.0
49.0
56.0
63.0
cont.
cont.
250 V
500 V
Minimum
Display
Limit Value
Value
9.10
7.0
10.40
8.0
11.70
9.0
13.0
10.0
26.0
20.0
39.0
30.0
52.0
40.0
65.0
50.0
78.0
60.0
91.0
70.0
104.0
80.0
117.0
90.0
130.0
100.0
200.0
300.0
400.0
Limit Value
100.0
200.0
300.0
400.0
500.0
600.0
700.0
800.0
900.0
1000.0
2000.0
1000 V
Minimum
Minimum
Display
Limit Value
Display
Value
Value
9.10
7.0
9.1
10.40
8.0
10.4
11.70
9.0
11.7
13.0
10.0
13.0
26.0
20.0
26.0
39.0
30.0
39.0
52.0
40.0
53.0
65.0
50.0
65.0
78.0
60.0
78.0
91.0
70.0
91.0
104.0
80.0
104.0
117.0
90.0
117.0
130.0
100.0
130.0
260.0
200.0
260.0
390.0
300.0
390.0
520.0
400.0
520.0
500.0
650.0
600.0
780.0
700.0
910.0
800.0
1040.0
900.0
1170.0
1000.0
1300.0
2000.0
2600.0
Maximum Display Value
70.0
140.0
210.0
280.0
350.0
420.0
490.0
560.0
630.0
700.0
1400.0