IEC 60598-2-14:2009 pdf download – Luminaires – Part 2-14: Particular requirements – Luminaires for cold cathode tubular discharge lamps (neon tubes) and similar equipment
The performance of the device sensible to earth leakage according to 1 4.7.3.4 shall be assured. 14.7.3.2 The device shall disconnect the mains supply to the luminaire or otherwise remove the output power, in case of accidental contact between the high voltage circuit and the earth. If the switching of a single pole of the supply voltage is provided, such switching shall be connected to the phase of the supply. 14.7.3.3 The fault condition detection (earth leakage) shall be made by means of suitable sensors connected to the output circuit, which shall operate means arranged to disconnect the supply circuit or remove the output power. NOTE 1 Sensors and contacts of the device may be assembled in a single unit. NOTE 2 The earth leakage device may be made in a way to protect more than one circuit of the luminaire.
14.7.3.4 The earth leakage protective device shall be as follows:
• If the sensor and/or the protective device which removes the output power is not placed within the enclosure of the control gear, it shall operate correctly over a temperature range –25° C to +65° C. In case the device is suitable to operate at different temperatures, these shall be indicated on the instructions sheet.
• If a part of the sensor and/or contact or the device switching the output power is installed within the control gear enclosure, such part shall operate correctly in the temperature range provided within the enclosure. The maximum ambient temperature of that part of the sensor and/or protective device shall not exceed the maximum temperature allowed during the tests of 1 2.4 and 1 2.5 of IEC 60598-1 .
• The rated current to operate the device shall be not more than the nominal secondary load current of the transformer being protected and shall not exceed 25 mA. NOTE 1 The effective current flowing through the sensor during earth discharge is determined by the circuit impedance and by the output characteristics which supply this discharge. It cannot depend on the current flowing in the protective device.
• The time for the device to remove the output shall be not more than 200 ms.
• The voltage across that part of a sensor which is detecting the earth-leakage current shall not exceed 50 V. The earth leakage protective device shall be tested according to the manufacturer’s instructions concerning such devices. These tests shall assure that the units operate correctly. NOTE 2 The standards related to earth leakage protective devices should comply with the regional regulations. NOTE 3 In the US and Canada, the operating current is equal to the rating of the control gear, if rated less than 1 5 mA, and must not otherwise exceed 1 5 mA. The time it takes the device to disable the output high voltage after the earth leakage has exceeded 1 5 mA does not exceed 500 ms.
14.7.3.5 If the protective device is designed to disconnect the mains supply in case of earth leakage, the relevant means shall have mechanical contacts. The use of switching by means of semiconductors (tyristors, triacs, etc.) is not allowed.
14.7.3.6 If the circuit includes a flasher, any protective switch and its reset circuit shall be installed on the mains-supply side of the flasher.
NOTE If the protective device and its reset circuit were placed on the load side of the flasher, the protective switch would keep resetting and re-tripping during fault conditions.
14.7.3.7 If the circuit includes a flasher and the device(s) to remove the output power is (are) incorporated within the housing of the control gear(s), either a protective switch shall be connected on the mains-supply side of the flasher and the incorporated sensor circuits shall
