Safety of Household and Similar Electrical Appliances - Part 1: General requirements

رقم المستند: NL EN 60335 1 : 2009
القطاع: Electrical Engineering
TC: No
ICS:
This International Standard deals with the safety of electrical appliances for household and similar purposes, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances. Appliances not intended for normal household use but which nevertheless may be a source of danger to the public, such as appliances intended to be used by laymen in shops, in light industry and on farms, are within the scope of this standard. NOTE 1 Examples of such appliances are catering equipment, cleaning appliances for industrial and commercial use, and appliances for hairdressers. As far as is practicable, this standard deals with the common hazards presented by appliances that are encountered by all persons in and around the home. However, in general, it does not take into account – persons (including children) whose • physical, sensory or mental capabilities; or • lack of experience and knowledge prevents them from using the appliance safely without supervision or instruction; – children playing with the appliance. NOTE 2 Attention is drawn to the fact that – for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be necessary; – in many countries additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labour, the national water supply authorities and similar authorities. NOTE 3 This standard does not apply to – appliances intended exclusively for industrial purposes; – appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas); – audio, video and similar electronic apparatus (IEC 60065); – appliances for medical purposes (IEC 60601); – hand-held motor-operated electric tools (IEC 60745); – personal computers and similar equipment (IEC 60950); – transportable motor-operated electric tools (IEC 61029). 2009 English 50000.00 0 1389 1496 C NL IEC 60364 2 21 : 2003 NL TC EO 91.140.50 60.60 Electrical Engineering Electrical installations of buildings-Part 2: Definitions-Chapter 21: Guide to general terms The guide is applicable to electrical installations of buildings. It contains explanatory notes on terms used in IEC 364, listed in sections 01 to 08 of IEC 50(826). The notes are intended to facilitate the application of terms 2003 EN/FR 25000.00 0 1390 1497 C NL IEC 60364 4 41 : 2003 NL TC EO 91.140.50 60.60 Electrical Engineering -Electrical installations of buildings-Part 4: protection for safety - Chapter 41: Protection against electric shock Part 4-41 of IEC 60364 specifies essential requirements regarding protection against electric shock, including basic protection (protection against direct contact) and fault protection (protection against indirect contact) of persons and livestock. It deals also with the application and co-ordination of these requirements in relation to external influences. Requirements are also given for the application of additional protection in certain cases. 2003 EN/FR 50000.00 0 1391 1498 C NL IEC 60364 4 42 : 2003 NL TC EO 91.140.50 60.60 Electrical Engineering Electrical installations of buildings-Part4: protection for safety - Chapter 42: Protection against thermal effects Persons, fixed equipment, and fixed materials adjacent to electrical equipment shall be protected against harmful effects of heat developed by electrical equipment, or thermal radiation, particularly the following effects: • combustion or degradation of materials; • risk of burns; • impairment of the safe function of installed equipment. NOTE: Protection against overcurrent is dealt with in IEC 60364-4-43. 2003 EN/FR 25000.00 0 1392 1499 C NL IEC 60364 4 43 : 2003 NL TC EO 91.140.50 60.60 Electrical Engineering Electrical installations of buildings-Part4: protection for safety - Chapter 43: Protection against overcurrent This part of IEC 60364 provides requirements for the protection of live conductors from the effects of overcurrents. This standard describes how live conductors are protected by one or more devices for the automatic disconnection of the supply in the event of overload (Clause 433) and short-circuit (Clause 434) except in cases where the overcurrent is limited in accordance with Clause 436 or where the conditions described in 433.3 (omission of devices for protection against overload) or 434.3 (omission of devices for protection against short-circuit) are met. Coordination of overload protection and short-circuit protection is also covered (Clause 435). NOTE 1 Live conductors protected against overload in accordance with Clause 433 are considered to be protected also against faults likely to cause overcurrents of a magnitude similar to overload currents. NOTE 2 The requirements of this standard do not take account of external influences. NOTE 3 Protection of conductors according to this standard does not necessarily protect the equipment connected to the conductors. NOTE 4 Flexible cables connecting equipment by plugs and socket-outlet to fixed installations are not part of the scope of this standard and for this reason are not necessarily protected against overcurrent. NOTE 5 Disconnection does not mean isolation in this standard. 2003 EN/FR 35000.00 0 1393 1500 C NL IEC 60364 4 45 : 2003 NL TC EO 91.140.50 60.60 Electrical Engineering Electrical installations of buildings-Part4: protection for safety - Chapter 45: Protection against undervoltages Concerns the precautions to be taken where a drop in voltage, or a loss and subsequent restoration of voltage could imply dangerous situations for persons or property or where a part of the installation or current-using equipment may be damaged by a drop in voltage. 2003 EN/FR 25000.00 0 1394 1501 C NL IEC 60364 4 46 : 2003 NL TC EO 91.140.50 60.60 Electrical Engineering Electrical installations of buildings-Part4: protection for safety - Chapter 46: Isolation and switching Deals with non-automatic local and remote isolation and switching measures which prevent or remove dangers associated with electrical installations or electrically powered equipment and machines 2003 EN/FR 25000.00 0 1395 1502 C NL IEC 60364 5 51 : 2003 NL TC EO 91.140.50 60.60 Electrical Engineering Electrical installations of buildings-Part 5-Selection and erection of electrical equipment-Chap.51: Common rules This part of IEC 60364 deals with the selection of equipment and its erection. It provides common rules for compliance with measures of protection for safety, requirements for proper functioning for intended use of the installation, and requirements appropriate to the external influences forese 2003 EN/FR 35000.00 0 1396 1503 C NL IEC 60364 4 443 : 2003 NL TC EO 91.140.50 60.60 Electrical Engineering Electrical installations of buildings-Part4: protection for safety - Chapter 44: Protection against overvoltages - Section 443: Protection against overvoltages of atmospheric origin or due to switching This section of IEC 364-4 deals with protection of electrical installations against transient overvoltages of atmospheric origin transmitted by the supply distribution system and against switching overvoltages generated by the equipment within the installation. Consideration shall be given to the overvoltages which can appear at the origin of an installation, to the expected ceraunic level and to the location and characteristics of overvoltage protective device, so that the probability of incidents due to overvoltage stresses is reduced to an acceptable level for the safety of persons and property, as well as for the continuity of service desired. The value of transient overvoltages depend on the nature of the supply distribution system (underground or overhead) and the possible existence of a low-voltage protective device upstream of the origin of the installation and the level of the supply system. This section provides guidance where protection against overvoltages in covered by inherent control or assured by protective control. If the protection according to this section is not provided, insulation coordination is not assured and the risk due to overvoltages shall be evaluated. NOTEs 1) Where, in this section the term “transient overvoltage” is used, it is intended to mean statistical lightning overvoltage as defined: The statistical level of overvoltges in defined as the overvoltage applied to equipment as result of an event of one specific type in the system (line energization, reclosing, fault occurrence, lightning discharge, etc), the peak value of which has a probability of being exceed which is equal to a specified reference probabiliry. 2) As regard transient atmospheric overvoltages, no distinction is made between earthed and unearthed systems. 3) Switching overvoltages generated outside the installation and transmitted by the supply network are under consideration. 4) The rules of this section do not apply to telecommunication systems. "