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Electrical Installation Tester
Specifications
83
Prospective Earth Fault Current (PEFC)
Prospective Short Circuit Current (PSC)
Computation
Prospective Earth Fault Current (PEFC/I
K
) or Prospective Short Circuit
Current (PSC/I
K
) determined by dividing measured mains voltage by
measured loop (L-PE) resistance or line (L-N) resistance, respectively.
Range 0 kA to 50 kA
Resolution
and Units
Resolution Units
I
K
<1000 A 1 A
I
K
>1000 A 0.1 kA
Accuracy
Determined by accuracy of loop resistance and mains voltage
measurements.
RCD Testing
RCD Types Tested
Limit on consecutive tests: Automatic shutdown for RCD tests when the temperature of
internal components is too hot.
RCD Type
[6]
Model 1662 Model 1663 Model 1664
AC
[1]
G
[2]
• • •
AC S
[3]
• • •
A
[4]
G • • •
A S • • •
B
[5]
G • •
B S
• •
[1] AC – Responds to ac
[2] G – General, no delay
[3] S – Time delay
[4] A – Responds to pulsed signal
[5] B – Responds to smooth dc
[6] RCD test inhibited for V >265 ac
RCD tests permitted only if the selected current, multiplied by earthing resistance, is <50 V.
1.888.610.7664 info@Fluke-Direct.com
Fluke-Direct.com
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