Indian Standard INFORMATION TECHNOLOGY EQUIPMENT SAFETY

Transcription

1 (PREVIEW) Indian Standard INFORMATION TECHNOLOGY EQUIPMENT SAFETY PART 1 GENERAL REQUIREMENTS IS (Part 1) : SCOPE This Indian Standard (Part 1) (Second Revision) which is identical with Information technology equipment Safety Part 1: General requirements issued by the International Electrotechnical Commission (IEC) was apted by the Bureau of Indian Standards on the recommendation of the Computer Hardware, Peripherals and Identification Cards Sectional Committee and approval of the Electronics and Information Technology Division Council. This standard was originally published in 1992 and was identical to IEC 950 : The standard was revised in 2003 based on ISO/IEC : This standard is now again being revised to align it with the latest IEC Publication. The text of IEC Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain terminology and conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following: a) Wherever the words appear referring to this standard, they should be read as Indian Standard. b) Comma (,) has been used as a decimal marker in the while in Indian Standards, the current practice is to use a point (.) as the decimal marker. In this apted standard, reference appears to certain s for which Indian Standards also exist. The corresponding Indian Standards which are to be substituted in their respective places are listed below along with their degree of equivalence for the editions indicated: IEC : 2001 Audio, video and similar electronic apparatus Safety requirements IEC : 2001 Environmental testing Part 2-78: Tests Test Cab: Damp heat, steady state IEC : 2004 Electrical insulation Thermal classification IEC : 2003 Method for determination of the proof and the comparative tracking indices of insulating materials IEC (All Parts) Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V Corresponding Indian Standard IS 616 : 2003 Audio, video and similar electronic apparatus Safety requirements (third revision) IS 9000 (Part 4) : 2008 Basic environmental testing procedures for electronic and electrical items: Part 4 Damp heat (steady state) (first revision) IS 1271 : 1985 Thermal evaluation and classification of electrical insulation (first revision) IS 2824 : 2007 Method for determination of the proof and the comparative tracking indices of insulating materials (second revision) IS 694 : 1990 PVC insulated cables for working voltages up to and including V (third revision) Degree of Equivalence vii

2 IEC (Various Parts) Plugs, industrial purposes IEC (Various Parts) Specifications for particular types of winding wires IEC (All Parts) Appliance couplers for household and similar general purposes IEC : 1993 Fixed capacitors for use in electronic equipment Part 14: Sectional specification: Fixed capacitors for electromagnetic interference suppression and connection to the supply mains IEC : 2002 Insulation coordination for equipment within low-voltage systems Part 1: Principles, requirements and tests IEC : 2004 Fire hazard testing Part 11-5: Test flames Needle-flame test method Apparatus, confirmatory test arrangement and guidance IEC : 1999 Automatic electrical controls for household and similar use Part 1: General requirements IEC : 1992 Discrete semiconductor devices Part 5: Optoelectronic devices Photocouplers, optocouplers IEC : 1993 Safety of laser products Part 2: Safety of optical fibre communication systems IEC : 2004 Low voltage switchgear and control gear Part 1: General rules IS/IEC (Part 1) : 2002 Plugs, industrial purposes: Part 1 General requirements (first revision) IS/IEC (Part 2) : 2002 Plugs, industrial purposes: Part 2 Dimensional interchangeability requirements for pin and contact-tube accessories (first revision) IS (Various Parts) Specifications for particular types of winding wires IS/IEC (All Parts) Appliance couplers for household and similar general purposes IS QC : 1994 Fixed capacitors for use in electronic equipment: Sectional specification for fixed capacitors for electromagnetic interference suppression and connection to the supply mains IS (Part 1) : 2003 Insulation coordination for equipment within lowvoltage systems: Part 1 Principle requirements and tests IS (Part 2/Sec 2) : 2008 Fire hazard testing: Part 2 Test methods, Section 2 Needle flame test method Apparatus, confirmatory test arrangement and guidance (first revision) IS 4165 : 1991 Thermostats for general purpose electric ovens (first revision) IS (Part 5) : 2004 Semiconductor devices Discrete devices and integrated circuits: Part 5 Optoelectronic devices IS (Part 2) : 1998 Safety of laser products: Part 2 Safety of optical fibre communication system IS/IEC : 2004 Low voltage switchgear and control gear: Part 1 General rules viii

3 IEC : 1999 Methods of measurement of touch current and protective conductor current IEC : 2000 Switches for appliances Part 1: General requirements ISO 178 : 1993 Plastics Determination of flexural properties ISO 179 (Various Parts) Plastics Determination of Charpy impact properties ISO 180 : 1993 Plastics Determination of Izod impact strength ISO 261 : 1998 ISO General purpose metric screw threads General plan ISO 262 : 1998 ISO General purpose metric screw threads Selected sizes for screws, bolts and nuts ISO 527 (Various Parts) Plastics Determination of tensile properties IS/IEC : 1999 Methods of measurement of touch current and protective conductor current IS/IEC : 2000 Switches for appliances: Part 1 General requirements IS (Part 5/Sec 7) : 1996 Plastics Mechanical properties, Section 7 Determination of flexural properties IS (Part 5/Sec 5) : 1996 Plastics Mechanical properties, Section 5 Determination of Charpy impact strength IS (Part 5/Sec 4) : 1996 Plastics Mechanical properties, Section 4 Determination of izod impact strength IS 4218 (Part 2) : 2001 ISO General purpose metric screw threads: Part 2 General plan IS 4218 (Part 4) : 2007 ISO General purpose metric screw threads: Part 4 Selected sizes for screws, bolts and nuts (third revision) IS (Part 5/Sec 1) : 1996 Plastics Mechanical properties, Section 1 General principles IS (Part 5/Sec 2) : 1996 Plastics mechanical properties, Section 2 Test conditions for moulding and extrusion plastics IS (Part 5/Sec 25) : 2004 Plastics mechanical properties, Section 25 Test conditions for isotropic and orthotropic fibre Reinforced plastic composites IS (Part 5/Sec 26) : 2004 Plastics mechanical properties, Section 26 Test conditions for unidirectional fibre Reinforced plastic composit ix

4 ISO 9773 : 1998 Plastics Determination of burning behaviour of thin flexible vertical specimens in contact with a small-flame ignition source IS (Part 6/Sec 23) : 2006 Plastics Methods of testing: Part 6 Thermal properties, Section 23 Determination of burning behaviour of thin flexible vertical specimens in contact with small-flame ignition source The technical committee has reviewed the provisions of following s referred in this apted standard and has decided that they are acceptable for use in conjunction with this standard. For undated references, the latest edition of the referenced cument applies, including any corrigenda and amendment. IEC IEC IEC IEC : 2001 IEC (All Parts) IEC : 2001 IEC DB : 2002 IEC IEC IEC IEC IEC IEC IEC IEC Title Basic and safety principles for man-machine interface, marking and identification Coding principles for indicators and actuators Plugs and socket-outlets for mestic and similar general use standardized in member countries of IEC Guide for the determination of thermal endurance properties of electrical insulating materials Part 4: Ageing ovens Section 1: Single-chamber ovens Electrical installations of buildings: Part 1 Fundamental principles, assessment of general characteristics, definitions Rubber insulated cables Rated voltages up to and including 450/750 V Electrical installations of buildings: Part 1 Fundamental principles, assessment of general characteristics, definitions Graphical symbols for use on equipment Fire hazard testing Part 2-11: Glowing/hot-wire based test methods Glowwire flammability test method for end-products Fire hazard testing Part 2-20: Glowing/hot-wire based test methods Hotwire coil ignitability Apparatus, test method and guidance Fire hazard testing Part 10-2: Abnormal heat Ball pressure test Fire hazard testing Part 11:3 Test flames 500 W flames Apparatus and confirmational test methods Fire hazard testing Part 11-4: Test flames 50 W flames Apparatus and confirmational test methods Fire hazard testing Part 11-10: Test flames 50 W horizontal and vertical flame test methods Fire hazard testing Part 11-20: Test flames 500 W flame test methods Safety of laser products Part 1: Equipment classification, requirements and user s guide x

5 IEC IEC IEC : 1996 IEC : 1996 IEC : 1996 IEC : 1987 Title Safety of laser products Part 9: Compilation of maximum permissible exposure to incoherent optical radiation Safety of laser products Part 12: Safety of free space optical communication systems used for transmission of information Winding wires Test methods Part 3: Mechanical properties Winding wires Test methods Part 5: Electrical properties Winding wires Test methods Part 6: Thermal properties Electrical test methods for electric cables Part 1: Electrical tests for cables, cords and wires for voltages up to and including 450/750 V IEC IEC system of plugs and socket-outlets for household and similar purposes Part 1: Plugs and socket-outlets 16A 250 V a.c. IEC IEC system of plugs and socket-outlets for household and similar purposes Part 2: Plugs and socket-outlets 15A 125 V a.c. IEC : 1991 ISO 3864 (All Parts) ISO Varistors for use in electronic equipment Part 2: Sectional specification for surge suppression varistors Graphical symbols Safety colours and safety signs Plastics Methods of exposure to laboratory light sources Part 1: General guidance ISO Plastics Methods of exposure to laboratory light sources Part 2: Xenon-arc sources ISO ISO 7000-DB : 2004 ISO 8256 ISO 9772 ITU-T Plastics Methods of exposure to laboratory light sources Part 4: Openflame carbon-arc lamps Graphical symbols for use on equipment Index and synopsis Plastics Determination of tensile-impact strength Cellular plastics Determination of horizontal burning characteristics of small specimens subjected to a small flame Recommendation K. 44, Resistibility tests for telecommunication equipment exposed to over voltages and over currents Basic recommendation Only the English language text of the has been retained while apting it as an Indian Standard, and as such the page numbers given here are not the same as in the IEC Publication. For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS 2 : 1960 Rules for rounding off numerical values (revised). The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard. xi