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Conduct tests for electromagnetic compatibility in accordance with[
MIL-STD-461][Section 01575N TEMPORARY ENVIRONMENTAL CONTROLS]. Conduct
tests for [_____] equipment.
]3.21.3
Distribution Conductors, 600-Volt Class
Test to verify that no short circuits or accidental grounds exist. Make
tests using an instrument which applies a voltage of approximately 500
volts providing a direct reading in resistance.
3.21.4
Counterpoise System Test and Inspection
Make a visual inspection of continuity of counterpoise system at accessible
locations. Test continuity of counterpoise system to the vault grounding
system in manhole closest to the vault.
[3.21.5
Progress Testing for Series Airfield Lighting Circuits
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NOTE: Progress testing should be specified when
replacing or modifying existing series airfield
lighting circuits since interruption time is usually
critical; however, progress testing on completely
new series airfield lighting circuits is not
normally necessary.
**************************************************************************
Conduct a megger test on each section of circuit or progressive
combinations of sections as they are installed. Check each section or
progressive combination of sections with a megohmmeter providing a voltage
of approximately 1000 volts to provide a direct reading in resistance, and
document results. Locate any faults indicated by these tests and eliminate
before proceeding with the circuit installation.
]3.21.6
Electrical Acceptance Tests
Perform acceptance tests for series and multiple airfield lighting circuits
only on complete lighting circuits. Subject each series and multiple
lighting circuit to a high voltage insulation resistance test.
3.21.6.1
Low Voltage Continuity Tests
Test each series circuit for electrical continuity. Locate faults
indicated by this test and eliminate before proceeding with the high
voltage insulation resistance test.
3.21.6.2
High Voltage Insulation Resistance Test
Subject each series lighting circuit to a high voltage insulation
resistance test by measurement of the insulation leakage current. Provide
a suitable high voltage test instrument which has a steady, filtered direct
current output voltage and limited current. High voltage tester shall
include an accurate voltmeter and microammeter for reading voltage applied
to the circuit and resultant insulation leakage current. Do not apply
voltages in excess of test values specified below.
a.
Test Procedure:
Disconnect both leads from regulator output
SECTION 16522N
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