IEC 60192 pdf download

IEC 60192 pdf download

IEC 60192 pdf download.Low-pressure sodium vapour lamps – Performance specifications
1 General
1.1 Scope
This standard specifies the performance requirements for low-pressure sodium vapour lamps for general lighting purposes. For some of the requirements given in this standard, reference is made to “the relevant lamp data sheet”. For some lamps these data sheets are contained in this standard. For other lamps, falling under the scope of this standard, the relevant data are supplied by the lamp manufacturer or responsible vendor. The requirements of this standard relate only to type testing. NOTE The requirements and tolerances permitted by this standard correspond to testing of a type test sample submitted by the manufacturer for that purpose. In principle this type test sample should consist of units having characteristics typical of the manufacturer’s production and being as close to the production centre point values as possible. It may be expected with the tolerances given in the standard that products manufactured in accordance with the type test sample will comply with the standard for the majority of production. Due to the production spread however, it is inevitable that there will sometimes be products outside the specified tolerances. For guidance on sampling plans and procedures for inspection by attributes, see IEC 60410.
1.2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of IEC and ISO maintain registers of currently valid International Standards. IEC 60050(845), International Electrotechnical Vocabulary (IEV) – Chapter 845: Lighting IEC 60061-1, Lamp caps and holders together with gauges for the control of interchangeability and safety – Part 1: Lamp caps IEC 60923, Auxiliaries for lamps – Ballasts for discharge lamps (excluding tubular fluorescent lamps) – Performance requirements IEC 62035, Discharge lamps (excluding fluorescent lamps) – Safety specifications
1.3 Definitions
For the purposes of this International Standard, the following terms and definitions, as well as others given in IEC 60050(845), apply: 1.3.1 low pressure sodium (vapour) lamp discharge lamp in which the light is produced by radiation from sodium vapour operating at a partial pressure of 0,1 to 1,5 pascal [IEV 845-07-24] 1.3.2 nominal value approximate quantity value used to designate or identify a lamp 1.3.3 rated value quantity value for a characteristic of a lamp for specified operating conditions. The value and the conditions are specified in this standard, or assigned by the manufacturer or responsible vendor 1.3.4 lamp designation: type E Code, indicating economy, to designate a type of low-pressure sodium vapour lamp with improved luminous efficacy NOTE As these lamps may be operated on various ballasts with slightly different wattages, it is not satisfactory to designate them with a nominal wattage. A lamp designation has been chosen consisting of the letter E and a number approximately numerically equal to their rated wattage. The number in the designation is different from that of the rated wattage, in order to avoid confusion with the existing lamps designated with their nominal wattage. 1.3.5 lamp starting voltage r.m.s. voltage at lamp terminals at which the lamp starts 1.3.6 initial readings starting characteristics of a lamp, measured before ageing, and the electrical and photometric characteristics of a lamp, measured at the end of the ageing period 1.3.7 reference ballast special inductive type ballast, designed for the purpose of providing comparison standards for use in testing ballasts, for the selection of reference lamps and for testing regular production lamps under standardised conditions. It is essentially characterized by the fact that at its rated frequency, it has a stable voltage/current ratio which is relatively uninfluenced by variations in current, temperature and magnetic surroundings.

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