02118nam 2200373 450 991013737090332120231206213926.01-5044-0216-210.1109/IEEESTD.1962.7378235(CKB)3710000000568081(NjHacI)993710000000568081(EXLCZ)99371000000056808120231206d1962 uy 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierIEEE Std 22A-1962 (Reaffirmed 1977) IEEE Guide for the Application of Interrupter Switches to Switch Capacitance Loads /Institute of Electrical and Electronics EngineersPiscataway, New Jersey :IEEE,1962.1 online resource (14 pages)Usual Temperature and Altitude Service Conditions-Equipment conforming to this Standard shall be suitable for operation at its standard rating, provided that:(a) The temperature of the cooling air (ambient temperature) does not exceed 40C if the equipment has copper-to-copper contacts or equivalent.(b) The temperature of the cooling air (ambient temperature) does not exceed 55C if the equipment has all contacts silver surfaced or equivalent, and in addition has all conducting joints, including terminal connections, either (1) Separately held mechanically, and either soldered or silver surfaced, or (2) Brazed, welded or silver soldered and provided that such operation does not result in temperatures in excess of 90C for class O, 105C for class A or 130C for class Β insulations.( c ) The altitude does not exceed 3300 feet (1000 meters).IEEE Std 22A-1962 Electric circuit-breakersStandardsElectric circuitsAlternating currentStandardsElectric circuit-breakersStandards.Electric circuitsAlternating currentStandards.620.110218NjHacINjHaclDOCUMENT9910137370903321IEEE Std 22A-1962 (Reaffirmed 1977)3646412UNINA