AS NZS 60669.1 pdf download

AS NZS 60669.1 pdf download.Switches for household and similar fixed electrical installations
1 Scope
This part of IEC 60669 applies to manually operated general purpose functional switches, for alternating current (AC) only with a rated voltage not exceeding 440 V with a rated current not exceeding 63 A, intended for household and similar fixed electrical installations, either indoors or outdoors. For switches provided with screwless terminals, the rated current is limited to 1 6 A. NOTE 1 The rated current is limited to 1 6 A for switches provided with insulation piercing terminals (IPT’s) according to Annex D. Switches covered by this document are, where applicable, intended for the control in normal use of all of the following loads: – a circuit for a tungsten filament lamp load; – a circuit for an externally ballasted lamp load (for example LED, CFL, fluorescent lamp load); – a circuit for a self ballasted lamp load (for example LEDi or CFLi); – a circuit for a substantially resistive load with a power factor not less than 0,95; – a single phase circuit for motor load with a rated current not exceeding 3 A at 250 V (750 VA) and 4,5 A at 1 20 V (540 VA) and a power factor not less than 0,6. This applies to both switches rated not less than 1 0 A that have not undergone additional tests and to momentary switches rated not less than 6 A that have not undergone additional tests. NOTE 2 In the following country the suitability of a switch intended to control the inrush current of a motor shall be tested: AU. This document also applies to boxes for switches, with the exception of mounting boxes for flush-type switches. NOTE 3 General requirements for boxes for flush-type switches are given in IEC 60670-1 .It also applies to switches such as – switches incorporating pilot lights; – electromagnetic remote control switches (particular requirements are given in IEC 60669-2-2); – switches incorporating a time-delay device (particular requirements are given in IEC 60669-2-3); – combinations of switches and other functions (with the exception of switches combined with fuses); – electronic switches (particular requirements are given in IEC 60669-2-1 ); – switches having facilities for the outlet and retention of flexible cables (see Annex A); – isolating switches (particular requirements are given in IEC 60669-2-4); – switches and related accessories for use in home and building electronic systems (particular requirements are given in IEC 60669-2-5); – firemen’s switches (particular requirements are given in IEC 60669-2-6).Switches complying with this document are suitable for use at ambient temperatures not normally exceeding +40 °C, but their average over a period of 24 h does not exceed +35 °C, with a lower limit of the ambient air temperature of –5 °C. NOTE 4 For lower temperatures see Annex E. Switches complying with this document are suitable only for incorporation in equipment in such a way and in such a place that it is unlikely that the surrounding ambient temperature exceeds +35 °C. In locations where special conditions prevail, such as in ships, vehicles and the like and in hazardous locations, for example where explosions are liable to occur, special construction and/or additional requirements may be required.
3 Terms and definitions
For the purposes of this document, the following terms and definitions 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 NOTE Where the terms “voltage” and “current” are used, they are rms values unless otherwise specified. 3.1 switch device designed to make or break the current in one or more electric circuits 3.1.1 on/off switch switch for alternatively closing and opening one or more electric circuits. [SOURCE: IEC 60050-1 51 :2001 , 1 51 -1 2-23] 3.1.2 momentary contact switch switch which returns its contacts automatically to the initial state after operation. Note 1 to entry: Momentary contact switches are intended to operate, for example, bells, electromagnetic remote control switches, time-delay switches and electronic switches.3.1.3 push-button switch switch having a single actuator which moves with a single motion when operated by an external, manual force usually applied by the finger or palm of the hand and having stored energy return 3.1.4 cord-operated switch switch the operating means of which is a cord which has to be pulled in order to change its contact state 3.1.5 switch of normal-gap construction switch construction having a clearance between the contacts in the open position of not less than 3 mm 3.1.6 switch of mini-gap construction switch construction having a clearance between the contacts which is less than 3 mm but is not less than 1 ,2 mm 3.1.7 switch of micro-gap construction switch construction having a clearance between the contacts in the open position of less than 1 ,2 mm 3.2 one operation transfer of the moving contacts from one operating position to another 3.3 terminal conductive part of one pole, composed of one or more clamping unit(s) and insulation if necessary 3.4 clamping unit part or parts of a terminal necessary for the mechanical clamping and the electrical connection of the conductor(s)