Elektrotechnika

Oblast zaměření: Práce pod napětím
Komise : IEC/TC 78 (Live working)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 28.05.2019
Zobraz více Zobraz méně
 

This part of IEC 61243 is applicable to portable voltage detectors, with or without built-in power sources, to be used on electrical systems for voltages of 1 kV to 800 kV AC, and frequencies of 50 Hz and/or 60 Hz.

This part applies only to voltage detectors of capacitive type used in contact with the bare part to be tested, as a complete device including its insulating element or as a separate device, adaptable to an insulating stick which, as a separate tool, is not covered by this standard (see 4.4.1.1 for general design).

Other types of voltage detectors are not covered by this part of the standard.

NOTE: Self ranging voltage detectors (formally “multi range voltage detectors”) are not covered by this standard.

Some restrictions or formal interdictions on their use are applicable in case of switchgear of IEC 62271 series design, due to insulation coordination, on overhead line systems of electrified railways (see Annex B, instructions for use) and systems without neutral reference. For systems without neutral reference the insulating level shall be adapted to the maximum possible voltage to the earth (ground).

Products designed and manufactured according to this standard contribute to the safety of users provided they are used by persons trained for the work, in accordance with the hot stick working method and the instructions for use.

Except where otherwise specified, all the voltages defined in this standard refer to values of phase-to-phase voltages of three-phase systems. In other systems, the applicable phase-to-phase or phase-to-earth (ground) voltages should be used to determine the operating voltage.

Komise : IEC/SC 59A (Electric dishwasheres)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 28.05.2019
Zobraz více Zobraz méně
 

Amendment

Oblast zaměření: Světelné zdroje a svítidla
Komise : IEC/SC 34B (Lamp caps and holders)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 28.05.2019
Zobraz více Zobraz méně
 

Amendment

Oblast zaměření: Světelné zdroje a svítidla
Komise : IEC/SC 34B (Lamp caps and holders)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 28.05.2019
Zobraz více Zobraz méně
 

Amendment

Oblast zaměření: Světelné zdroje a svítidla
Komise : IEC/SC 34B (Lamp caps and holders)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 28.05.2019
Zobraz více Zobraz méně
 

Amendment

Komise : IEC/SC 17A (High-voltage switchgear and controlgear)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 28.05.2019
Zobraz více Zobraz méně
 

This part of IEC 62271 is applicable to three-pole alternating current switches for rated voltages higher than 52 kV, having making and breaking current ratings, for indoor and outdoor installations, and for rated frequencies up to and including 60 Hz.

This standard is also applicable to the operating devices of these switches and to their auxiliary equipment.

NOTE 1 Switches for gas insulated switchgear are covered by this standard.

NOTE 2 Switches having a disconnecting function and called switch-disconnectors are also covered by IEC 62271-102.

NOTE 3 Earthing switches are not covered by this standard. Earthing switches forming an integral part of a switch are covered by IEC 62271-102.

The main object of this standard is to establish requirements for switches used in transmission and distribution systems. General-purpose switches for this application are designed to comply with the following service applications:

carrying rated normal current continuously;

carrying short-circuit currents for a specified time;

switching of mainly active loads;

switching of no-load transformers;

switching of the charging current of unloaded cables, overhead lines or busbars;

switching of closed-loop circuits;

making short-circuit currents.

A further object of this standard is to establish requirements for limited-purpose and special- purpose switches used in transmission and distribution systems.

Limited-purpose switches comply with one or more of the service applications indicated above.

Special-purpose switches may comply with one or more of the service applications indicated above and, in addition, are suitable for one or more of the following applications:

switching single capacitor banks;

switching back-to-back capacitor banks;

switching shunt reactors including secondary or tertiary reactors switched from the primary side of the transformer;

applications requiring an increased number of operating cycles;

switching under earth fault conditions in non-effectively earthed neutral systems.

Komise : IEC/SC 17A (High-voltage switchgear and controlgear)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 28.05.2019
Zobraz více Zobraz méně
 

This part of IEC 62271 applies to AC contactors and/or contactor-based controllers and motor-starters designed for indoor installation and operation at frequencies up to and including 60 Hz on systems having voltages above 1 kV and up to and including 24kV. Typically, for outdoor installations this equipment is housed in an additional protective enclosure.

It is applicable only to three-pole devices for use in three-phase systems, and single-pole devices for use in single-phase systems. Two-pole contactors and starters for use in single-phase systems are subject to agreement between manufacturer and user.

Contactors and/or starters dealt with in this standard typically do not have adequate short‑circuit interruption capability. In this context, this standard gives requirements for

–   starters associated with separate short‑circuit protective devices;

–   controllers - contactors combined with short‑circuit protective devices (SCPD).

Contactors intended for closing and opening electric circuits and, if combined with suitable relays, for protecting these circuits against operating overloads are covered in this standard.

This standard is also applicable to the operating devices of contactors and to their auxiliary equipment.

Motor‑starters intended to start and accelerate motors to normal speed, to ensure continuous operation of motors, to switch off the supply from the motor and to provide means for the protection of motors and associated circuits against operating overloads are dealt with.

Motor‑starter types included are

–   direct‑on‑line starters;

–   reversing starters;

–   two-direction starters;

–   reduced kVA (voltage) starters;

auto‑transformer starters;

rheostatic starters;

reactor starters.

This standard does not apply to

–   circuit-breaker-based motor-starters;

–   single-pole operation of multi-pole contactors or starters;

–   two‑step auto-transformer starters designed for continuous operation in the starting position;

–   unbalanced rheostatic rotor starters, i.e. where the resistances do not have the same value in all phases;

–   equipment designed not only for starting, but also for adjustment of speed;

–   liquid starters and those of the "liquid‑vapour" type;

–   semiconductor contactors and starters making use of semiconductor contactors in the main circuit;

–   rheostatic stator starters;

–   contactors or starters designed for special applications.

This standard does not deal with components contained in contactors and contactor-based motor-starters, for which individual specifications exist.

NOTE 1 Thermal electrical relays are covered by IEC 60255-8.

NOTE 2 High-voltage current-limiting fuses are covered by IEC 60282-1 and IEC 60644.

NOTE 3 Metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV are covered by IEC 62271-200.

NOTE 4 Disconnectors and earthing switches are covered by IEC 62271-102.

NOTE 5 High-voltage switches above 1 kV and less than 52 kV are covered by IEC 62271-103.

The object of this standard is to state

a)  the characteristics of contactors and starters and associated equipment;

the conditions with which contactors or starters shall comply with reference to:

1)  their operation and behaviour,

2)  their dielectric properties,

3)  the degrees of protection provided by their enclosures, where applicable,

4)  their construction,

5)  for controllers, interactions between the various components, for example SCPD
co-ordination;

c)  the tests intended for confirming that these conditions have been met, and the methods to be adopted for these tests;

d)  the information to be given with the equipment or in the manufacturer's literature.

Oblast zaměření: Výkonové transformátory
Komise : IEC/TC 14 (Power transformers)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 5.06.2019
Zobraz více Zobraz méně
 

This part of IEC 60076-22 applies to a selection of accessories and fittings mounted on liquid immersed power transformers according to IEC 60076-1 and reactors according to IEC 60076-6 with or without conservator for indoor or outdoor installation. It outlines the service conditions and the mechanical requirements that are common to all the accessories and fittings.

It also outlines the operation requirements specific to each device as well as the preferred dimensions relevant for interchangeability and the type and routine test to be performed

Oblast zaměření: Elektrická relé
Komise : IEC/TC 94 (All-or-nothing electrical relays)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 12.06.2019
Zobraz více Zobraz méně
 

Amendment

Komise : IEC/TC 18 (Electrical installations of ships and of mobile and fixed offshore units)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 12.06.2019
Zobraz více Zobraz méně
 

This document is applicable to single and three-phase wet-mateable and dry-mateable AC connectors, penetrators and jumper assemblies with rated voltages from 3 kV (Umax = 3,6 kV) to 30 kV (Umax = 36 kV).  This document relates to the requirements and tests for products in the “as manufactured and supplied” condition. This document is not applicable to requirements and tests for products that have been subsequently installed, deployed or retriever.

Komise : IEC/TC 18 (Electrical installations of ships and of mobile and fixed offshore units)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 12.06.2019
Zobraz více Zobraz méně
 

This International Standard specifies minimum requirements for emission, immunity and performance criteria regarding electromagnetic compatibility (EMC) of electrical and electronic equipment for ships with non-metallic hull.

NOTE Requirements for metallic hull are given by IEC 60533. This documents acts an extension of IEC 60533 to cater for EMC effects on non-metallic hull.

This International Standard further gives guidance on how to achieve electromagnetic compatibility (EMC) on ships whose hull (surface) is made from non-metallic material and may also be useful for  ships with hull comprising of a metallic hull, but with non-metallic superstructure or components.

This international standard assists in meeting the requirements of IMO resolution A.813(19).

It does not specify basic safety requirements such as protection against electric shock and dielectric tests for equipment. Electromagnetic effects on human beings are not the subject of this standard.

Komise : IEC/SC 59M (Performance of electrical household and similar cooling and freezing appliances)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 19.06.2019
Zobraz více Zobraz méně
 

Amendment

Komise : IEC/SC 59M (Performance of electrical household and similar cooling and freezing appliances)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 19.06.2019
Zobraz více Zobraz méně
 

Amendment

Komise : IEC/SC 59M (Performance of electrical household and similar cooling and freezing appliances)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 19.06.2019
Zobraz více Zobraz méně
 

Amendment

Komise : IEC/SC 59F (Surface cleaning appliances)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 19.06.2019
Zobraz více Zobraz méně
 

This International Standard is applicable for measurements of the performance of cordless dry vacuum cleaners for household use in or under conditions similar to those in households.The results obtained under this standard are intended to be comparable to the results obtained under IEC 62885-2 for mains connected vacuums.

The purpose of this document is to specify essential performance characteristics of cordless dry vacuum cleaners which are of interest to users and to describe methods for measuring these characteristics.

NOTE 1 Due to the influence of environmental conditions, variations in time, origin of test materials and proficiency of the operator, most of the described test methods will give more reliable results when applied for comparativecomparative testing of a number of appliances at the same time, in the same laboratory and by the same operator.

NOTE 2 This standard is not intended for mains operated vacuum cleaners or cleaning robots.

NOTE 3   Cordless handheld vacuums are excluded except for clauses 5.7.2 and 5.101.2.

For safety requirements, reference is made to IEC 60335-1, IEC 60335-2-2 and IEC 60335-2-69.

A recommendation on information for the consumer at the point of sale is given in Annex B of IEC 62885-2.

This standard does not currently address changing performance throughout the whole run time of some appliances. Results at varying different states of battery charge may vary. The potential clauses effected are 5.1-5.6, 5.8-5.11 and 6.16. It is recommended to do perform test 5.101 first to understand the potential effect of discharge.”

Oblast zaměření: Elektrická zařízení strojů
Komise : IEC/TC 44 (Safety of mashinery - Electrotechnical aspects)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 19.06.2019
Zobraz více Zobraz méně
 

This International Standard specifies requirements and makes recommendations for the design, integration and validation of safety-related control systems (SCS) for machines. It is applicable to control systems used, either singly or in combination, to carry out safety functions on machines that are not portable by hand while working, including a group of machines working together in a co-ordinated manner.

This standard is machinery sector specific standard within the framework of the IEC 61508 series.

The design of complex programmable electronic subsystems or subsystem elements is not in the scope of this standard. This is in the scope of IEC 61508 or standards linked to it, see Figure 1.

The main body of this sector standard specifies general requirements for the design, and verification of a safety-related control system intended to be used in high/continuous demand mode.

Specific requirements for design, and verification of a safety-related control system intended to be used in low demand mode are given in normative Annex D.

NOTE 1 It’s recognized that a subsystem can be shared by high and low demand functions.

This standard:

–   is concerned only with functional safety requirements intended to reduce the risk of injury or damage to the health of persons in the immediate vicinity of the machine and those directly involved in the use of the machine;

–   is restricted to risks arising directly from the hazards of the machine itself or from a group of machines working together in a co-ordinated manner;

NOTE 2 Requirements to mitigate risks arising from other hazards are provided in relevant sector standards. For example, where a machine(s) is part of a process activity, additional information is available in IEC 61511.

This document does not cover

electrical hazards arising from the electrical control equipment itself (e.g. electric shock – see IEC 60204–1);

other safety requirements necessary at the machine level such as safeguarding;

specific measures for security aspects – see IEC TR 63074.

This document is not intended to limit or inhibit technological advancement.

Figure 1 shows the relationship of this standard to other relevant standards.

Komise : IEC/TC 64 (Electrical installations and protection against electric shock)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 26.06.2019
Zobraz více Zobraz méně
 

Amendment

Komise : IEC/SC 61D (Appliances for air-conditioning for household and similar purposes)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 2.07.2019
Zobraz více Zobraz méně
 

This clause of Part 1 is replaced by the following:

This International Standard deals with the safety of electrical recovery and/or recycle equipment to recover and/or recycle refrigerant from air conditioning and refrigeration equipment incorporating open drive or motor-compressors, their maximum rated voltages being not more than 300 V for single phase appliances and 600 V for all other equipment.

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 service personnel in shops, in light industry and on farms, are within the scope of this standard.

The appliances referenced above may consist of one or more factory made assemblies. If provided in more than one assembly, the separate assemblies are to be used together, and the requirements are based on the use of matched assemblies.

NOTE 101 A definition of “sealed motor-compressor” is given in IEC 60335-2-34.

NOTE 102 Requirements for refrigeration safety are covered by ISO 5149-2.

NOTE 103 For appliances using flammable refrigerants, additional requirements are under consideration.

NOTE 104 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;

for appliances subjected to pressure, 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, national water supply authorities and similar authorities.

NOTE 105 This standard does not apply to

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).

Komise : IEC/SC 61C (Safety of refrigeration appliances for household and commercial use)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 2.07.2019
Zobraz více Zobraz méně
 

This clause of Part 1 is replaced by the following.

This International Standard deals with the safety of sealed (hermetic and semi-hermetic type) motor-compressors, their protection and control systems, if any, which are intended for use in equipment for household and similar purposes and which conform with the standards applicable to such equipment. It applies to motor-compressors tested separately, under the most severe conditions that may be expected to occur in normal use, their rated voltage being not more than 250 V for single-phase motor-compressors and 600 V for other motor-compressors.

This standard also covers

multi-speed motor-compressors, that are motor-compressors, the speed of which can be set to different values;

variable capacity motor-compressors that are motor-compressors where the capacity of the compressor is controlled at fixed speeds.

NOTE 101 Examples of equipment which contain motor-compressors are

tumble dryers (IEC 60335-2-11);

–   refrigerators, food freezers and ice-cream appliances (IEC 60335-2-24);

–   air-conditioners, electric heat pumps and dehumidifiers (IEC 60335-2-40);

–   commercial dispensing appliances and vending machines (IEC 60335-2-75);

commercial refrigerating appliances and ice-makers (IEC 60335-2-89);

climatic and environmental testing and other temperature conditioning equipment (IEC 61010-2-012)

–   factory-built assemblies for transferring heat in applications for refrigerating, air-conditioning or heating purposes or a combination of such purposes.

This standard does not supersede the requirements of standards relevant to the particular appliance in which the motor-compressor is used. However, if the motor-compressor type used complies with this standard, the tests for the motor-compressor specified in the particular appliance standard may not need to be made in the particular appliance or assembly. If the motor-compressor control system is associated with the particular appliance control system, additional tests may be necessary on the final appliance.

So far as is practical, this standard deals with the common hazards presented by motor-compressors used in appliances which are encountered by all persons in and around the home. However, it does not in general take into account

the use of appliances by young children or infirm persons without supervision;

playing with the appliances by young children.

NOTE 102 Attention is drawn to the fact that

–   for motor-compressors intended to be used in appliances in vehicles or on board ships, 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 and similar authorities.

NOTE 103 This standard does not apply to

–   motor-compressors designed exclusively for industrial purposes;

–   motor-compressors used in 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).

NOTE 104 If motor-compressors for refrigerant R-744 used in appliances with a transcritical refrigeration system are equipped with pressure relief devices, compliance with the requirements for these devices is checked during the tests on the final appliance.

Oblast zaměření: Vodiče pro vinutí
Komise : IEC/TC 55 (Winding wires)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 2.07.2019
Zobraz více Zobraz méně
 

This part of IEC 60317 specifies general requirements of glass-fibre wound, resin or varnish impregnated, bare or enamelled rectangular copper wire.

The range of nominal conductor dimensions is given in subclause 4.1 and the relevant specification sheet.