IEEE 495:2007 pdf download IEEE Guide for Testing Faulted Circuit lndicators
3.1 Usual service conditions
The FCI should be suitable for use under one or more of the following intended service conditions when:Exposed to direct sunlight, salt spray, or normal expected pad mount conditions
Not exposed to direct sunlight or salt spray
Buried in earth (sensor only)
Submerged in water intermittently or continuously to a depth of 4.5 m (15 ft)
Exposed to rain,snow, hail
Operating temperature range of-40C to +85 C
Applied on systems up to 46 kV phase-to-phase
3.2 Unusual service conditions
Service conditions other than those listed in 3.1 are considered to be unusual. Consult the manufacturer forrecommendations.
4. Testing
4.1 Design tests
All applicable tests specified in 4.4 should be performed by the manufacturer to demonstrate that FCls meettheir ratings and are suitable for operation under the intended service conditions
In addition, the manufacturer should periodically test a sufficient number of production FCIs to ensurecontinuing compliance with design tests.
4.2 Production tests
The production tests of 4.2.1 and 4.2.2 should be performed on every FCl.
4.2.1 Trip current rating verification test
The trip current rating verification test should be performed by passing current through the conductor(s) towhich the FCI is applied. The results should demonstrate compliance with the manufacturer’s specified tripcurrent rating and tolerances. This test should be performed at least one time at a temperature between18C and 30C
4.2.2 Reset verification test
The reset verification test should be performed to ensure that the FCI returns to a normal state.
demonstrating compliance with the manufacturer’s specified reset rating.
One of the following tests should be performed at least one time at a temperature between 18 °C and 30 °C.
Current reset: For FCIs that require a current flow through the cable conductor in order to changefrom an indication of FAULT to an indication of NORMAL, the following should apply: theindicator should change to an indication of NORMAL when the current specified by themanufacturer flows through the cable conductor for not more than 10 min.
Voltage reset: For FCls that require a potential to be restored to the cable conductor in order tochange the indicator from an indication of FAULT to an indication of NORMAL, the followingshall apply: the indicator should move to an indication of NORMAL when the minimum resetvoltage is applied to the cable conductor for not more than 10 min.
Time reset: For FCls requiring only elapsed time to reset, the FCI should reset within its rated timeand tolerances. The reset time tolerance is = 20% of the manufacturers stated value. Since thesetimes may be extremely long, it is not practical to perform this test in normal production. Themanufacturer should demonstrate compliance during design testing.
Manual reset: For FCIs that require a manual operation to change from an indication of FAULT toan indication of NORMAL, the following shall apply: the indicator should move from the FAULTto NORMAL indication when reset by the means specified by the manufacturer.

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