Combined loop and RCD testers
環路及電阻器電容器
Model : LRCD220
THe Megger LRCD220 with the addition of 2 wire fast testing, plus phase to phase and phase to earth measurement. This instruments will not trip RCDs rated at 30 mA or greater during loop testing, even electronic RCDs.
* Specification
Voltage measurement:
(LRCD220):
0 V - 500 V
Accuracy:
±2% ±2 digits
Frequency measurement:
(LRCD220)
Range:
25Hz to 450Hz
Accuracy:
25.0Hz to 199.9Hz ±0.1Hz
200Hz to 450Hz ±1Hz
Phase rotation indicator
(LRCD220 only)
Three wire identification of phase rotation.
Frequency:
45Hz to 65Hz
Loop testing:
Loop ranges (to EN 61557-3)
No Trip Loop test 3-wire (Line to Earth) (LRCD220)
Supply:
LRCD220 100V - 280 V 45Hz to 65Hz
Nominal test current:
15 mA
Loop Accuracy:
0.01 Ω - 9.99 Ω (±5% ±0.03 Ω)
10.0 Ω - 99.9 Ω (±5% ±0.5 Ω)
100 Ω - 999 Ω (±5% ±5 Ω)
1.00 kΩ - 2.00 kΩ (±5% ±30 Ω)
HI current Line/Earth loop test 2 wire (LRCD220 only)
Supply:
100 V - 480 V
Nominal Test Current:
15 mA to 2.4 A
Loop accuracy:
0.01Ω - 9.99 Ω (±5% ±0.03 Ω)
10.0Ω - 99.9 Ω (±5% ±0.5 Ω)
100Ω - 999 Ω (±5% ±5 Ω)
1.0 kΩ - 2.00 kΩ (±5% ±30 Ω)
Line/Line (LRCD220 only)
Supply:
100 V - 480 V 45Hz to 65Hz
Prospective Fault Current (PSCC)
Prospective fault current = Nominal supply voltage/Loop
resistance
Accuracy is derived from loop test
1 A - 199 A 1 A resolution
0.20 kA - 1.99 kA 10 A resolution
2.0 kA - 19.9 kA 100 A resolution
RCD Testing
RCD Test Ranges (to EN61557-6)
LRCD220 10mA, 30mA,100mA, 300mA, 500mA, 1000mA
Supply voltage:
LRCD220 = 100 V - 280 V 45Hz to 65Hz
Test Current Accuracy:
No Trip Test:
(1/2I) –8% to –2%
Trip Test:
(I, 5I) +2% to +8%
Trip Time:
±1% ±1ms
Fault (Touch) Voltage
Displayed range:
0 V to 50 V
Error:
+5%/+15% ±0.5 V
Temperature and humidity
Operating Range:
-5°C to +40°C
Operating Humidity:
93% R.H. at +40°C max.
Storage Range:
-25°C to +70°C
Maximum altitude:
2000m
Environmental Protection:
IP54
Safety
IEC 61010
Meets the requirements of IEC61010-1 Cat III 300V phase to earth.
EN61557
Complies with the following parts of EN61557,Electrical safety in
low voltage systems up to 1000 V ac and 1500 V dc- Equipment for
testing, measuring or monitoring of protective measures:
Part1- General Requirements
Part3- Loop resistance
Part6- Residual current devices
Power supply
Battery: 8 x 1,5 V cells IEC LR6 type (AA alkaline).
Rechargeable: 8 x 1.2V NiCd or NiMH cells.
Battery Life: 2000 consecutive tests
Weight: All units 980gms
Dimensions: All units 203 x 148 x 78 mm
E.M.C.
In accordance with IEC61326-1