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	IEC 60204-1 Safety of machinery - Electrical equipment of machines - Part 1: General requirements Buy IEC Collections Online subscriptions to multiple documents on various subjects Info To speak with an IHS Subject Matter Expert call 1-888-752-0334, outside the US/Canada call 303-397-2892. More Top IEC Standards...

IEC 60204-1 - Safety of machinery - Electrical equipment of machines - Part 1: General requirements

Scope
This part of IEC 60204 applies to the application of electrical and electronic equipment and systems to machines not portable by hand while working, including a group of machines working together in a co-ordinated manner but excluding higher level systems aspects (i.e. communications between systems).

NOTE 1 In this standard, the term electrical includes both electrical and electronic matters (i.e. electrical equipment means both the electrical and the electronic equipment).

NOTE 2 In the context of this standard, the term person refers to any individual and includes those persons who are assigned and instructed by the user or his agent(s) in the use and care of the machine in question.

The equipment covered by this standard commences at the point of connection of the supply to the electrical equipment of the machine (see 5.1).

NOTE 3 For the requirements for the electrical supply installation in buildings, see IEC 60364.

This part is applicable to the electrical equipment or parts of the electrical equipment that operate with nominal supply voltages not exceeding 1 000 V for alternating current and not exceeding 1 500 V for direct current, and with nominal frequencies not exceeding 200 Hz. For higher voltages or frequencies, special requirements may be needed.

This part is an application standard and is not intended to limit or inhibit technological advancement. It does not cover all the requirements (e.g. guarding, interlocking, or control) that are needed or required by other standards or regulations in order to safeguard persons from hazards other than electrical hazards. Each type of machine has unique requirements to be accommodated to provide adequate safety.

This part specifically includes, but is not limited to, the electrical equipment of machines as defined in 3.33 (annex A lists examples of machines whose electrical equipment may be covered by this standard).

Additional and special requirements can apply to the electrical equipment of machines that:

• are used in open air (i.e. outside buildings or other protective structures);
• use, process, or produce potentially explosive material (e.g. paint or sawdust);
• are used in potentially explosive and/or flammable atmospheres;
• have special risks when producing or using certain materials;
• are used in mines;
• are sewing machines, units, and systems (which are covered by IEC 60204-31); are hoisting machines (which are covered by 60204-32).

Power circuits where electrical energy is directly used as a working tool are excluded from this part of IEC 60204.

Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 60204. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of IEC 60204 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 60034-1:1996, Rotating electrical machines - Part 1: Rating and performance
• IEC 60034-5:1991, Rotating electrical machines - Part 5: Classification of degrees of protection provided by enclosures of rotating electrical machines (IP code)
• IEC 60034-11:1978, Rotating electrical machines - Part 11: Built-in thermal protection - Chapter 1: Rules for protection of rotating electrical machines
• IEC 60050(191):1990, International Electrotechnical Vocabulary (IEV) - Chapter 191: Dependability and quality of service
• IEC 60050(441):1984, International Electrotechnical Vocabulary (IEV) - Chapter 441: Switchgear, controlgear, and fuses
• IEC 60050(826):1982, International Electrotechnical Vocabulary (IEV) - Chapter 826: Electrical installations of buildings
• IEC 60072-1:1991, Dimensions and output series for rotating electrical machines - Frame numbers 56 to 400 and flange numbers 55 to 1 080
• IEC 60072-2:1990, Dimensions and output series for rotating electrical machines - Part 2: Frame numbers 355 to 1 000 and flange numbers 1 180 to 2 360
• IEC 60073:1996, Basic and safety principles for man-machine interface, marking and identification - Coding principles for indication devices and actuators
• IEC 60076-5:1976, Power transformers - Part 5: Ability to withstand short circuit
• IEC 60146-1-1:1991, General requirements and line commutated connectors - Part 1-1: Specifications of basic requirements
• IEC 60204-31:1996, Electrical equipment of industrial machines - Part 31: Particular requirements for sewing machines, units, and systems
• IEC 60309-1:1988, Plugs, socket-outlets, and couplers for industrial purposes - Part 1: General requirements
• IEC 60332-1:1993, Tests on electric cables under fire conditions - Part 1: Test on a single vertical insulated wire or cable
• IEC 60364-4-41:1992, Electrical installations of buildings - Part 4: Protection for safety - Chapter 41: Protection against electric shock
• IEC 60364-4-46:1981, Electrical installations of buildings - Part 4: Protection for safety - Chapter 46: Isolation and switching
• IEC 60364-4-47:1981, Electrical installations of buildings - Part 4: Protection for safety - Chapter 47: Application of protective measures for safety - Section 470: General - Section 471: Measures of protection against electric shock
• IEC 60364-4-473:1977, Electrical installations of buildings - Part 4: Protection for safety - Chapter 47: Application of protective measures for safety - Section 473: Measures of protection against overcurrent
• IEC 60364-4-481:1993, Electrical installations of buildings - Part 4: Protection for safety - Chapter 481: Choice of protective measures as a function of external influences - Section 481:
• Selection of measures for protection against electric shock in relation to external influences
• IEC 60364-5-54:1980, Electrical installations of buildings - Part 5: Selection and erection of electrical equipment - Chapter 54: Earthing arrangements and protective conductors
• IEC 60364-5-523:1983, Electrical installations of buildings - Part 5: Selection and erection of electrical equipment - Chapter 52: Wiring systems - Section 523: Current-carrying capacities
• IEC 60364-6-61:1986, Electrical installations of buildings - Part 6: Verification - Chapter 61: Initial verification as amended by Amendment 1 (1993)
• IEC 60417:1973, Graphical symbols for use on equipment. Index, survey, and compilation of the single sheets
• IEC 60439-1:1992, Low-voltage switchgear and controlgear assemblies - Part 1: Type-tested and partially type-tested assemblies
• IEC 60445:1988, Identification of equipment terminals and terminations of certain designated conductors including general rules for an alphanumeric system
• IEC 60446:1989, Identification of conductors by colours or numerals
• IEC 60447:1993, Man-machine interface (MMI) - Actuating principles
• IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
• IEC 60536:1976, Classification of electrical and electronic equipment with regard to protection against electric shock
• IEC 60617: Graphical symbols for diagrams
• IEC 60621-3:1979, Electrical installations for outdoor sites under heavy conditions (including open-cast mines and quarries) - Part 3: General requirements for equipment and ancillaries
• IEC 60664-1:1992, Insulation co-ordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests
• IEC 60742:1983, Isolating transformers and safety isolating transformers
• IEC 60947-2:1995, Low-voltage switchgear and controlgear - Part 2: Circuit breakers
• IEC 60947-3:1990, Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors, and fuse combination units
• IEC 60947-5-1:1990, Low-voltage switchgear and controlgear - Part 5: Control circuit devices and switching elements - Section One: Electromechanical control circuit devices
• IEC 60947-7-1:1989, Low-voltage switchgear and controlgear - Part 7: Ancillary equipment - Section One: Terminal blocks for copper conductors
• IEC 61082: Preparation of documents used in electrotechnology
• IEC 61131-1:1992, Programmable controllers - Part 1: General information
• IEC 61131-2:1992, Programmable controllers - Part 2: Equipment requirements and tests
• IEC 61346-1:1996, Industrial systems, installations and equipment and industrial products - Structuring principles and reference designations - Part 1: Basic rules
• ISO 3864:1984, Safety colours and safety signs
• ISO 7000:1989, Graphical symbols for use on equipment - Index and synopsis
• ISO/TR 12100-1:1992, Safety of machinery - Basic concepts, general principles for design - Part 1: Basic terminology, methodology