Perform in-service testing of temporary grounding jumper assemblies used on de-energized electric power lines and equipment as specified by ASTM Standard 2249-03.
Model JT-200 Ground Jumper Tester is equipped with separate voltage sensing leads to avoid problems related to contact resistance between the test set and jumper under test.
The voltage tables have been developed based on values given in ASTM Standard 2249-03 and the Terman formula for calculating loop inductance.
It is possible to test more complex jumper assemblies if the voltage drop at 200 A across them is known by adding this number to that obtained from the table.
Safety and Design Features:
Portable, Lightweight
Simple set-up and operation
Ruggedly constructed for years of field and shop use
Safety and Design Features:
Main power circuit breaker
On/Off pushbutton switches
Backup circuit breaker for regulator/transformer protection
Output via interchangeable terminals with voltage sense leads
Zero-start interlock
Operation/maintenance manual
Input: 120 VAC, 60 Hz, Single Phase 5 Amps
Output: 0-3 VAC, 200 Amps
Digital Metering:
Type/Accuracy: 3 ½ digit, 1% of reading ± 5 counts
Voltmeter Range: 0-3 VAC
Currentmeter Range: 0-200 AAC
Please feel free to contact for detailed specifications, accessories, software and options.