IEC 60512-1:2018 pdf download – Connectors for electrical and electronic equipment – Tests and measurements – Part 1: Generic specification.
3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 61 076-1 as well as the following apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: • IEC Electropedia: available at http://www.electropedia.org/ • ISO Online browsing platform: available at http://www.iso.org/obp 3.1 ambient temperature temperature of the air in free air conditions at such a distance from the specimen that the effect of the dissipation is negligible Note 1 to entry: In practice, the ambient temperature is taken as the average of temperatures measured at a number of points in a horizontal plane situated between 0 mm and 50 mm below the specimen at half the distance between the specimen and the wall of the chamber, or at 1 m distance from the specimen, whichever is less. Suitable precautions should be taken to avoid heat radiation affecting these measurements. [SOURCE: IEC 60068-1 : 201 3, 3.9.2] 3.2 combined test test during which a specimen is subjected simultaneously to two or more environmental influences Note 1 to entry: Tests with simultaneous influence of a) temperature and humidity; b) temperature, humidity and specific (including chemically active) medium; and c) temperature and solar radiation are not related to combined tests. Note 2 to entry: Combined tests, as a rule, are used to provide simultaneous climatic and mechanical influences.
3.3 conditioning exposure of a specimen to environmental conditions in order to determine the effect of such conditions on the specimen [SOURCE: IEC 60068-1 :201 3, 3.3, modified: title changed to “conditioning” from original “testing”.] 3.4 free air conditions conditions within an infinite space where the movement of the air is affected only by the heat- dissipating specimen itself 3.5 lower limiting temperature LLT minimum temperature of a connector as defined by the climatic category assigned by the manufacturer in which a connector is intended to operate Note 1 to entry: The LLT of a connector is covered by the climatic category as defined in IEC 60068-1 , together with the ULT and the duration of the damp heat test. [SOURCE: IEC 61 984:2008, 3.1 6] 3.6 maximum continuous operating temperature COT max maximum ambient temperature at which the connector can be fully (on all poles) and continuously (without interruption) loaded at its rated current, without mechanical and/or electrical deterioration, i.e. without exceeding its upper limiting temperature (ULT) 3.7 minimum continuous operating temperature COT min minimum ambient temperature at which the connector can be still continuously operated within its ratings, without mechanical and/or electrical deterioration 3.8 pre-conditioning treatment of a specimen with the object of removing, or partly counteracting, the effects of its previous history Note 1 to entry: Where pre-conditioning is called for, it is the first process in the test procedure. Note 2 to entry: Pre-conditioning may be affected by subjecting the specimen to climatic, electrical, or any other conditions required by the relevant specification in order that the properties of the specimen may be stabilized before measurement and test. [SOURCE: IEC 60068-1 :201 3, 3.2]
3.1 0 rated temperature temperature value assigned by the manufacturer, which is based on maximum continuous operating temperature (COT max ) and minimum continuous operating temperature (COT min ) 3.1 1 rated voltage value of voltage assigned by the manufacturer to the connector and to which operation and performance characteristics are referred Note 1 to entry: A connector may have more than one rated voltage value. Note 2 to entry: Rated voltage is based on clearance and creepage distance, refer IEC 60664-1 . [SOURCE: IEC 61 984:2008, 3.27] 3.1 2 recovery treatment of a specimen, after conditioning, in order that the properties of the specimen may be stabilized before measurement [SOURCE: IEC 60068-1 :201 3, 3.4] 3.1 3 sequence of tests sequence in which the specimen is exposed successively to two or more test environments Note 1 to entry: The durations of intervals between the exposures to different test environments are such that they normally have no significant effect on the specimen. Note 2 to entry: Pre-conditioning and recovery periods are usually performed between the different exposures. Note 3 to entry: Measurements are usually taken before and after each exposure, the final measurement of one test being the initial measurement of the next. [SOURCE: IEC 60068-1 : 201 3,3.1 6]