UL 943:2006 pdf download – Ground-Fault Circuit- Interrupters.
6.22 VIsual Inspection test
622.1 To determine compliance with internal wiring construction requirements in Clause 5. representative ground-fault circuit-interrupters shall be examined. This may require disassembly of the ground-fault circuit-interrupter or obtaining representative subassemblies from the manufacturer.
623 Reverse line-load mlswire test
6.231 A previously untested receptacle type ground-fault circuit-interrupter shall interrupt the electric circuit to the receptacle face and line terminals when a supply drcuit is wired to the load terminals of the device.
6.23.2 Under the conditions described in 6.23.3 and 6.23.4 the ground-fault circuit-interrupter shall interrupt the electric circuit to the receptacle face and line terminals or not permit power to be applied to the receptacle face and line terminals when the power is first applied to the load terminals, and each time the reset is operated.
6.23.3 For this test, the supply line voltage is to be set at 85 percent of the rated voltage The ground-fault circuit-interrupter is to be switched on unless it is shipped from the manufacturer in the tripped condition and cannot be reset until properly installed. If shipped in the tripped condition, to verity the ground-fault circuit-interrupter cannot be reset until properly installed, attempt to engage reset by first pressing the reset button and then by pressing the test and reset buttons simultaneously. This is to be performed before and after load terminals are connected to supply voltage. Power is to be applied to the load terminals, and the reset shall be operated ten times in rapid succession
6.23.4 The test described in 6.23.2 is to be repeated on the same device, with the supply line voltage set at 110 percent of the rated voltage.
6.24 Supplemental voltage surge immunity test
6.24.1 General
6.24.1.1 The line side terminals of the Line-Neutral and Line-Line terminals thai are protected by the representative ground-fault circuit-interrupter shall be subjected to this test.
6.24.1.2 The ground-fault circuit-interrupter is to be connected to a supply of rated voltage. The grounding lead or terminal of the ground-fault circuit-interrupter (it provided) is to be connected to the supply conductor serving as the neutral. The ground-fault circuit-interrupter is to be in the 0N’ condition with no load connected. GFCIs that are intended only for use in enclosures shall be tested in their intended enclosure for the tests referenced in 6.24.1,1. The enclosure shall be representative of the worst case situation for the tests.
626 GFCI receptacle end of life test
6.26.1 A ground-fault circuit-interrupter receptacle that has reached its end of life shall meet the
requirements of 5.15.5.
626.2 GFCI receptacle end of life simulation — In order to determine compliance with the provisions of
626.1, one representative GFCI is to be subjected to an end of life simulation.
6.26.3 One representative GFCI shall be altered with a single modification to the GFCI circuitry in the form of a short circuit or open circuit such that the GFCI is incapable of responding in the normal manner to a line to ground, ground-fault. The representative GFCI shall then be evaluated in accordance with
6.26.5.
6.26.4 II the GFCI is designed to repeatecJy trip at end of life, the following end of life simulation may be used as an alternative to 6.26.3. One representative GFCI shall be altered with a single modification to the GFCI that results in the trip solenoid being in an energized state. The single mod,licahon can be a short circuit connected across an appropriate electrical component, or an appropriate electrical component is to be open circuited. The representative GFCI shall then be evaluated In accordance with
6.26.5.
6.26.5 The representative GFCI, having been subected to an end of life simulation, is to be correctly connected to rated line voltage and allowed to stabilize. The internal test function is to be performed, after which the reset button is to be operated. Each representative GFCI shall be considered as meeting the requirements of Clause 6.26 it one of the following conditions is met.