International Standards and Conformity Assessment for all electrical, electronic and related technologies

ACOS

Advisory Committee on Safety

 

Definition of terms

Function
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Type of publication

horizontal safety function
Task assigned to a TC to prepare one or more basic safety publications

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basic safety publication
Publication on a specific safety-related matter, applicable to many electrotechnical products

group safety function
Task assigned to a product TC to prepare one or more group safety publications

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group safety publication
Publication covering all safety aspects of a specific group of products within the scope of two or more product TCs

About Safety Functions

The assignment of horizontal safety functions and group safety functions is the responsibility of the Advisory Committee on Safety (ACOS), subject to confirmation by the Standardization Management Board (SMB).

Information on the preparation and use of basic safety publications and group safety publications can be found in
IEC Guide 104.

This guide should be used in conjunction with
ISO/ IEC Guide 51.

Horizontal Safety Functions

Committee
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Description
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Horizontal safety function
Basic safety
Publications
Electrical installations and protection against electric shock

Protection against electric shock
(See also Group Safety Functions)

System aspects

Functional safety of electrical/ electronic/ programmable electronic systems, (which would encompass safety-related software).

Degrees of protection provided by enclosures

Degrees of protection provided by enclosures against ingress of foreign bodies, water and access to live or moving parts and standardization of accessibility probes. Such degrees should be expressed by the IP classification system.

Electromagnetic compatibility

Electromagnetic compatibility in so far as safety aspects are involved.

Fire hazard testing

Guidance and test methods for assessing fire hazards of electrotechnical equipment, their parts (including components) and electrical insulating materials. Note: Terms and definitions in the field of fire tests from ISO/IEC 13943 are used wherever appropriate.

Electrostatics

To specify methods of test and relevant equipment to evaluate generation, retention and dissipation of electrostatic charges on materials.

Environmental conditions, classification and methods of test

Methods for climatic tests
Methods for testing mechanical robustness

Safety of electronic equipment within the field of audio/video, information technology and communication technology

Methods of measuring touch current and protective conductor current. This includes methods of measurement of touch current with regard to physiological effects and of protective conductor current for installation purposes. The methods of measurement consider both normal conditions and certain fault conditions.
Safety of equipment - electrically connected to a telecommunications network.
(See also Group Safety Functions)

Insulation co-ordination for low-voltage equipment

Insulation co-ordination for voltages upto and including 1 000 V a.c. and 1 500 V d.c. including dimensioning of clearances, creepage distances. This includes all methods of dielectric testing with respect to insulation co-ordination

Evaluation and qualification of electrical insulating materials and systems

Test methods for resistance to tracking

Group Safety Functions

Committee
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Description
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Group Safety Functions
Group safety
Publications
Electric cables

Fire hazard testing of cables comprising :

  • Flame propagation tests,
  • Fire resistance tests,
  • Smoke optical density tests,
  • Corrosivity tests.
Power electronic systems and equipment

Power electronic converter systems and equipment for solar, wind, tidal, wave, fuel cell or similar energy sources

Electrical accessories
Connecting devices, either as separate entities or as integral parts of an end product, primarily for connecting external electrical supply conductors, for use with conductor cross sections of 0,2 mm2 up to and including 35 mm2 copper conductors and up to and including 50 mm2 aluminium conductors, but excluding connecting devices for data and signal circuits.
Circuit-breakers and similar equipment for household use
Residual current devices (RCDs)
Electrical installations and protection against electric shock

Protection against electric shock
(See also Horizontal Safety Functions)

Safety of measuring, control and laboratory equipment

Test and measurement equipment, industrial-process control equipment, and laboratory equipment, for use in industry and laboratories, and for educational purposes.

Optical radiation safety and laser equipment

Aspects of laser radiation pertaining to human safety

Transformers, reactors, power supply units, and combinations thereof

Small power transformers and power supply units other than those intended to supply distribution networks, in particular transformers and power supply units intended to allow the application of protective measures against electric shock as defined by TC 64, and for special transformers and special reactors with no limitation of rated power but in certain cases including limitation of voltage.

Safety of electronic equipment within the field of audio/video, information technology and communication technology

Audio, video and similar equipment
(See also Horizontal Safety Functions)