Earth Ground Clamp
Equipment and Environment
7
Equipment and Environment
For the ac leakage current verification, adjustment, and performance test, use the Fluke 5522A with a 2-turn
current loop. Connect the AUX terminal or 20 A terminal to the LO terminal. To short the two terminals, use
a conductor with two banana jacks at both ends.
For the
Ω
verification, adjustment, and performance test, use the precision decade resistance box with a
1-loop short copper wire to form a resistance loop.
Table 2 is a list of specifications.
Table 2. Environment Specifications
Setup
Before you start the verification procedures or make calibration adjustments, refer to this section for the
equipment, system, and setup requirements.
See Table 3 for a list of requirements for the verification tests and calibration adjustment
.
Table 3. Equipment Requirements
CAL Point
Accuracy
Unit
Minimum Required
Characteristics
IET 1433-20
0.100
1.5 %
0.020
0.022
Ω
5.38 %
2.01 %
0.250
1.5 %
0.020
0.024
2.38 %
0.81 %
0.500
1.5 %
0.050
0.058
2.88 %
0.41 %
1.000
1.5 %
0.050
0.065
1.63 %
0.21 %
2.000
1.5 %
0.100
0.130
1.63 %
0.11 %
5.000
1.5 %
0.100
0.175
0.88 %
0.05 %
10.00
1.5 %
0.10
0.25
0.63 %
0.03 %
20.00
1.5 %
0.30
0.6
0.75 %
0.02 %
50.00
1.5 %
0.30
1.05
0.53 %
0.01 %
100.0
1.5 %
0.50
2.0
0.50 %
0.01 %
200.0
3 %
1.0
7.0
0.88 %
0.01 %
400
5 %
5.0
25
1.56 %
0.01 %
600
10 %
10
70
2.92 %
0.01 %
1000
20 %
0
200
5.00 %
0.01 %
Equipment
Description
Recommended
Model
Used on:
Verification
Tests
Calibration
Adjustment
Current Calibrator
Calibrator
Fluke 5522A
X
X
Current Wired Coil
2-Turn Loop insulated copper wire
X
X
OHM Calibrator
Precision decade resistance box
IET 1433-20 or equivalent
X
X
OHM Wired Coil
1-Loop short copper wire
X
X
Содержание 1630-2
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