Elektrotechnika

Oblast zaměření: Dálkově řízené systémy
Komise : IEC/TC 57 (Power systems management and associated information exchange)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 21.07.2020
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Amendment

Komise : IEC/TC 4 (Hydraulic turbines)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 21.07.2020
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The purpose of this international guideline is to establish, in a general way, suitable procedures for commissioning and operation of hydraulic machines and associated equipment, and to indicate how such machines and equipment should be commissioned and operated.

Commissioning and operation of the associated equipment is not described in detail in this guideline but is considered in the commissioning and operation procedure as a separate step.

Machines of up to about 15 MW and reference diameters of about 3 m are generally covered by IEC 62006 Hydraulic Machines Acceptance Test of small Hydroelectric Installations.

It is understood that a guideline of this type will be binding only if the contracting parties have agreed upon it.

The guideline excludes matters of purely commercial interest, except those inextricably connected with the conduct of commissioning and operation.

The guideline is not concerned with waterways, gates, drainage pumps, cooling-water equipment, generators, motor-generators, electrical equipment (e.g. circuit breakers, transformers) etc., except where they cannot be separated from the hydraulic machinery and its equipment.

Wherever the guideline specifies that documents, drawings or information shall be supplied by a supplier (or by suppliers), each individual supplier shall be required to furnish the appropriate information for its own supply only.

Komise : IEC/TC 99 (System engineering and erection of electrical power installations in systems with nominal voltages above 1kV A.C. and 1.5 kV D.C., particularly concerning safety aspects)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 28.07.2020
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This part of IEC 61936 provides requirements for the design and the erection of electrical power installations in systems with nominal voltages above 1 kV AC and nominal frequency up to and including 60 Hz, so as to provide safety and proper functioning for the use intended.

For the purpose of interpreting this standard, an electrical power installation is considered to be one of the following:

substation, including substation for railway power supply,

electrical power installations on mast, pole and tower, switchgear and/or transformers located outside a closed electrical operating area,

one (or more) power station(s) located on a single site, the electrical power installation includes generators and transformers with all associated switchgear and all electrical auxiliary systems. Connections between generating stations located on different sites are excluded,

the electrical system of a factory, industrial plant or other industrial, agricultural, commercial or public premises,

electrical power installations on offshore facilities for the purpose of generation, transmission, distribution and/or storage of electricity and

transition towers/poles (between overhead lines and underground lines).

The electrical power installation includes, among others, the following equipment:

rotating electrical machines,

switchgear,

transformers and reactors,

converters,

cables,

wiring systems,

batteries,

capacitors,

earthing systems,

buildings and fences which are part of a closed electrical operating area,

associated protection, control and auxiliary systems, and

large air core reactor.

NOTE 1 In general, equipment standards take precedence over the requirements of this standard.

This standard does not apply to the design and erection of any of the following:

overhead and underground lines between separate electrical power installations,

electrified railway tracks and rolling stock,

mining equipment and installations,

fluorescent lamp installations,

installations on ships according to IEC 60092 [34] series and offshore units according to IEC 61892 [35] series, which are used in the offshore petroleum industry for drilling, processing and storage purposes,

electrostatic equipment (e.g. electrostatic precipitators, spray-painting units),

test sites and

medical equipment, e.g. medical X-ray equipment.

This standard does not apply to the design of prefabricated, type-tested switchgear and high voltage/low voltage prefabricated substation, for which separate IEC standards exist.

NOTE 2 The scope of this standard does not include the requirements for carrying out live working on electrical power installations.

NOTE 3  The scope of this standard consider safety requirements for HV installations and its influences on LV installations. For electrical installations up to 1 kV, the standard IEC 60364 series applies.

Oblast zaměření: Světelné zdroje a svítidla
Komise : IEC/TC 116 (Safety of motor-operated electric tools)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 4.08.2020
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Amendment

Komise : IEC/SC 17C (High-voltage switchgear and controlgear assemblies)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 4.08.2020
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This Part 215 of IEC 62271 is applicable to phase comparators designed to be plugged into the testing points of a voltage detecting and indicating system (VDIS) according to IEC 62271-213, to give an indication of the result of a phase comparison.

The main usage is to provide a clear evidence of the correct phase relationship between two energized parts of a high-voltage network, at the same nominal voltage and frequency before coupling them.

This standard or parts of the standard can also be applied to phase comparison function of other devices connected to the VDIS upon agreement of manufacturer and user.

This standard does not cover phase comparators to be used directly on bare parts of live electrical installation or at a distance, which are covered by IEC 61481-1:2014 and IEC 61481-2:2014.

The products designed and manufactured according to this standard contribute to the safety of the users, provided they are used by skilled or instructed persons, in accordance with safe working procedures and the instructions for use.

Komise : IEC/SC 17C (High-voltage switchgear and controlgear assemblies)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 4.08.2020
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This Part 213 of IEC 62271 is applicable to Voltage Detecting and Indication System (VDIS) to be installed on indoor and outdoor high-voltage equipment.

The VDIS as defined by this standard includes a coupling system per phase (capacitive, resistive coupling or other technology) to connect to live parts (main circuit).

The VDIS is applicable on systems with nominal voltages above 1 kV and service frequencies from 16,7 Hz up to and including 60 Hz. The VDIS is used to detect and indicate the presence or absence of operating voltage. It is not intended to distinguish between voltage not present (i.e. U < 10% of nominal voltage) and dead circuit state (i.e. U = 0 V).”

NOTE 1: The use of a specific means of connection to earth of the main circuit (e.g. by an earthing switch) provides the “dead circuit” (U = 0 V) state.”

NOTE 2: The VDIS has the same threshold values than VPIS (IEC 62271-206) and VDS (IEC 61243-5) for not indicating presence of voltage and for detecting absence of operating voltage, respectively.

The VDIS is to be fixed on equipment such as switchgear and controlgear according to IEC 62271 series or transformers according to their own standard.

The products designed and manufactured as per this standard contribute to the safety of the users provided, they are used by skilled or instructed persons, in accordance with safe methods of works and the instruction of use.

Oblast zaměření: Výkonová elektronika
Komise : IEC/SC 22H (Uninterruptible Power Systems (UPS))
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 11.08.2020
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Amendment

Oblast zaměření: Akumulátorové baterie
Komise : IEC/TC 21 (Secondary cells and batteries)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 11.08.2020
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This part of IEC 60095 is applicable to lead-acid batteries used for starting, lighting and ignition of passenger cars and light vehicles with a nominal voltage of 12 V.

All batteries in accordance with this standard can be fastened to the vehicle either by means of the ledges around the container or by means of a hold-down device engaging with the lid.

This standard covers battery sizes of the geographical regions Europe, East Asia and North America.

Oblast zaměření: Akumulátorové baterie
Komise : IEC/TC 21 (Secondary cells and batteries)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 11.08.2020
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This part of IEC 60095 is applicable to lead-acid batteries used for starting, lighting and ignition of heavy trucks, commercial vehicles, busses and agricultural trucks.

The object of the present standard is to specify global requirements of the main dimensions of starter batteries for Europe, North America and East Asia.

This International  Standard comprises  12  types of "preferred types" of batteries.

The standard specifies dimensions of 4 types of batteries each for the Europe (types A, B, C and D2), North America (4D, 8D, 31T, 31A) and East Asia (E41, F51, G51, H52) regions.

For future new developments of heavy vehicles it is strongly recommended to use only batteries from this standard.

Several other types of batteries exist under the standards of national or regional organisations. They are not included in this International Standard.

Oblast zaměření: Silové kondenzátory
Komise : IEC/TC 33 (Power capacitors and their applications)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 25.08.2020
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This IEC standard is applicable to both self-healing capacitor units and self-healing capacitor banks intended to be used, particularly, for power-factor correction of a.c. power systems having a rated voltage above 1 000 V and fundamental frequencies of 15 Hz to 60 Hz.

The following capacitors are excluded from this IEC standard:

Shunt power capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 1 000 V (IEC 60831-1, -2).

Shunt power capacitors of the non-self-healing type for a.c. systems having a rated voltage up to and including 1 000 V (IEC 60931-1, -2 and -3).

Shunt capacitors of the non-self-healing type for a.c. power systems having a rated voltage above 1 000 V (IEC 60871-1, -2, -3 and -4).

Capacitors for inductive heat-generating plants operating at frequencies between 40 Hz and 24 000 Hz (IEC 60110-1 and -2).

Series capacitors (IEC 60143-1, -2, -3 and -4).

AC motor capacitors (IEC 60252-1 and -2).

Coupling capacitors and capacitor dividers (IEC 60358-1, -2, -3, -4).

Capacitors for power electronic circuits (IEC 61071).

Small a.c. capacitors to be used for fluorescent and discharge lamps (IEC 61048 and IEC 61049).

Capacitors for suppression of radio interference.

Capacitors intended to be used in various types of electrical equipment, and thus considered as components.

Capacitors intended for use with d.c. voltage superimposed on the a.c. voltage.

Accessories such as insulators, switches, instrument transformers, external fuses, etc., should be in accordance with the relevant IEC standards and are not covered by the scope of this IEC standard.

The object of this IEC standard is to:

formulate uniform rules regarding performances, testing and rating;

formulate specific safety rules;

provide a guide for installation and operation.

Oblast zaměření: Elektrické kabely
Komise : IEC/TC 20 (Electric cables)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 25.08.2020
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Amendment

Oblast zaměření: Elektrická příslušenství
Komise : IEC/SC 23A (Cable management systems)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 2.09.2020
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This clause of  IEC 61386-1 ed 2.1: 2017 is applicable, except as follows:

Addition:

This part of IEC 61386 specifies the requirements for flexible conduit systems.

Oblast zaměření: Elektrická příslušenství
Komise : IEC/SC 23A (Cable management systems)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 2.09.2020
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This clause of  IEC 61386-1 ed 2.1 : 2017 is applicable, except as follows:

Addition:

This part of IEC 61386 specifies the requirements for pliable conduit systems including self-recovering conduit systems.

Oblast zaměření: Elektrická příslušenství
Komise : IEC/SC 23A (Cable management systems)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 2.09.2020
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This clause of IEC 61386-1 ed 2.1:2017 is applicable, except as follows:

Addition:

This part of IEC 61386 specifies the requirements for rigid conduit systems.

Komise : IEC/SC 18A (Electric cables for ships and mobile and fixed offshore units)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 2.09.2020
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This part of IEC 60092 specifies the requirements for electrical, mechanical and particular characteristics of insulating and sheathing materials intended for use in shipboard and fixed and mobile offshore unit power, control, instrumentation and telecommunication cables.

The different insulating and sheathing materials have been divided into three categories as listed in the following Table 1.

Table 1 – Categories and types of materials

Title

Compounds included

Cross-linked insulating compounds

EPR; HEPR; XLPE; S 95; HF 90

Cross-linked sheathing compounds

SE; SH; SHF 2

Thermoplastic sheathing compounds

SHF 1; ST 2

SE, SH and ST 2 is permitted even though it releases harmful fumes under fire conditions. SE, SH and ST2 should be avoided for installation in passenger vessels and in evacuation areas.