IS 302 : Part 1 : 2024/IEC 60335-1 : 2020 Household and Similar Electrical Appliances - Safety - Part 1 General Requirements

ICS 13.120; 97.060

ETD 32

NATIONAL FOREWORD

This Indian Standard (Part 1) (Seventh Revision) which is identical to IEC 60335-1 : 2020 'Household and similar electrical appliances - Safety - Part 1: General requirements' issued by the International Electrotechnical Commission (IEC) was adopted by the Bureau of Indian Standards on the recommendation of the Electrical Appliances Sectional Committee and approval of the Electrotechnical Division Council.

The need and importance of a standard prescribing the general and safety requirements and constructional details of appliances with a view to ensure safe and reliable operation need not be overemphasized. This standard is concerned with electrical and mechanical construction in so far as they affect safety, durability and reliability in service of the appliances, primarily used for household purposes. A standard of this kind, without reference to any particular appliance, may not cover in detail all the requirements with which an individual appliance should comply. Consequently, compliance with this standard is not in itself a complete guarantee either of safety or performance of an appliance.

This standard was first published in 1951 and revised in 1960, 1963, 1967, 1973, 1979 and 2008. This revision has been brought out to harmonize with the latest version of IEC 60335-1.

This revision includes the following significant technical changes with respect to the previous version (minor changes are not listed):

a) Updated the text of this standard to align with the most recent editions of the dated normative references;

b) Deleted some notes and converted many other notes, in whole or in part, to normative text;

c) Changed some Annex designations from normative to informative;

d) Introduced information on guidance documents concerning the application of the safety requirements covered by IEC 60335 series and on how to retrieve them;

e) Clarified requirements for PELV circuits;

f) Clarification of requirements on measurement of power input and rated current when they vary throughout the operating cycle;

g) Replaced existing Annex S with the informative Annex S 'Guidance for the application of this standard on measurement of power input and current based on the requirements of 10.1 and 10.2 concerning the representative period';

h) Introduced and clarified mechanical strength requirements for appliances with integral pins for insertion into socket-outlets;

j) Introduced requirements for battery-operated appliances;

k) Introduced requirements for metal-ion batteries including a new clause 12 charging of metal-ion batteries;

m) Introduced the application of test probe 18;

n) Introduced requirements for appliances incorporating appliance outlets and socket-outlets accessible to the user;

p) Introduced requirements for appliances incorporating a functional earth;

q) Introduced moisture resistance test requirements for appliances that incorporate an automatic cord reel and that have a second numeral IP rating;

r) Introduced the appliance test criteria for the moisture resistance for appliances and parts of appliances with integral pins for insertion into socket-outlets;

s) Introduced limits on the output voltage of an accessible safety extra-low voltage outlet or connector or universal serial bus (USB) under abnormal operation conditions;

t) Introduced requirements to cover optical radiation hazards;

u) Introduced a revamped normative Annex R software evaluation;

v) Introduced in new normative Annex T UV-C radiation effect on non-metallic materials;

w) Introduced in new normative Annex U cyber security requirements to avoid unauthorized access and the effects of transmission failures via remote communication through public networks;

y) Introduced definitions relating to safety components (3.7);

z) Deletion of software Class C and software Class B;

aa) Addition of definitions relating to battery charging and discharging and remote functionality (3.10, 3.11);

bb) Introduced symbol for class III appliances, detachable power supply part (7.6);

cc) Introduced requirements related to charging of metal-ion batteries (12);

dd) Introduced rinsing agent in moisture resistance test (15.2);

ee) Changed relative humidity and temperature requirements in humidity test (15.3);

ff) Changed requirements for checking of electronic circuits (19.11);

gg) Introduced component requirements for telecommunication interface circuitry, thermal links, contactors and relays, lamps and lamp systems and cord sets (24.1.7, 24.1.8, 24.1.9, 24.1.10, 24.1.11).

The text of IEC standard has been approved as suitable for publication as an Indian Standard without deviations. Certain terminologies and conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words 'International Standard' appear referring to this standard, they should be read as 'Indian Standard'; and

b) Comma (,) has been used as a decimal marker, while in Indian Standards the current practice is to use a point (.) as the decimal marker.