SIST IEC 60542:1997/AMD1:1997
(Amendment)Amendment No. 1
Amendment No. 1
Modification n° 1
Application guide for on-load tap-changers - Amendment No. 1 to publication 542 (1976)
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Standards Content (Sample)
SLOVENSKI STANDARD
SIST IEC 60542:1997/AMD1:1997
01-oktober-1997
Application guide for on-load tap-changers - Amendment No. 1 to publication 542
(1976)
Amendment No. 1
Modification n° 1
Ta slovenski standard je istoveten z: IEC 60542 Amd. 1 Ed. 1.0
ICS:
29.120.40 Stikala Switches
SIST IEC 60542:1997/AMD1:1997 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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This part of EN 60947applies to transfer switching equipment (TSE) to be used in power systems with interruption of the supply to the load during transfer, the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c.
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This clause of Part 1 is completely replaced by the following:
This part of IEC 60669 applies to electronic control devices, a general term to cover electronic switches, home and building electronic systems (HBES) / building automation and control systems (BACS) switches and electronic extension units.
It applies to electronic switches and to HBES/BACS switches, for alternating current (AC) only with a rated switching voltage not exceeding 250 V and a rated current not exceeding 16 A, intended for household and similar fixed electrical installations, either indoors or outdoors.
It also applies to electronic extension units with a rated supply voltage not exceeding 250 V AC and 120 V DC, such as sensors and push buttons.
This document also applies to electronic remote control switches (RCS) and electronic time delay switches (TDS). Particular requirements are given in Annex FF.
Switches including only passive components such as resistors, capacitors, inductors, positive temperature coefficient (PTC) and negative temperature coefficient (NTC) components, varistors, printed wiring boards and connectors are not considered as electronic control devices.
This document also applies to electronic switches and HBES/BACS switches for the operation of lighting equipment circuits and the control of the brightness of lighting equipment (dimmers) as well as the control of the speed of motors (for example, those used in ventilating fans) and for other purposes (for example, heating controls).
The operation and/or control as mentioned above can be transmitted by an electronic signal via several media, for example, powerline (mains), twisted pair, optical fibre, radio frequency, infrared, etc. and are performed:
- intentionally by a person via an actuating member, a key, a card, etc., via a sensing
surface or a sensing unit, by means of touch, proximity, turn, optical, acoustic, thermal;
- by physical means, for example, light, temperature, humidity, time, wind velocity, presence
of people;
- by any other influence.
This document also applies to electronic control devices which include integrated radio receivers and transmitters.
This document covers only those requirements for mounting boxes which are necessary for the tests on the electronic control devices.
Requirements for general purpose mounting boxes are given in the relevant part, if any, of IEC 60670.
This document is not intended to cover devices falling within the scope of IEC 60730 (all parts).
Electronic control devices complying with this document are suitable for use at ambient temperature not normally exceeding 25 °C but occasionally reaching 35 °C with a lower limit of the ambient air temperature of −5 °C.
NOTE 1 For lower temperatures, see Annex E.
Functional safety aspects are not covered by this document. Functional safety requirements are covered by the standards of the controlled devices.
In locations where special conditions prevail, such as in ships, vehicles and the like and in hazardous locations, for example where explosions are liable to occur, special construction and/or additional requirements may be required.
This document is not intended to cover devices which are designed to be incorporated in appliances or are intended to be delivered together with a specific appliance and which are within the scope of IEC 60730 (all parts) or IEC 61058-1.
Examples of designs of electronic switches and HBES/BACS switches and functions are shown in Annex AA.
Additional requirements for electronic control devices using DLT-technology in accordance with IEC 62756-1 are given in Annex CC.
Electrical interface specification for phase-cut dimmer used in phase-cut dimmed lighting systems are given for information only in Annex EE.
NOTE 2 Electronic switches and HBES/BACS switches without a mechanical switch in the main circuit do not provide a "full off-state". Therefore, the circuit on the load side are to be considered to be live.
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To give requirements and tests for electronic control devices, a general term to cover electronic switches, HBES/BACS switches and electronic extension units.
It applies to electronic switches and to HBES/BACS switches, for alternating current (AC) only with a rated switching voltage not exceeding 250 V and a rated current not exceeding 16 A, intended for household and similar fixed electrical installations, either indoors or outdoors.
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This Part of IEC 60669 also applies to electronic control devices which include integrated radio receivers and transmitters.
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EN-IEC 60947-5-2 applies to inductive and capacitive proximity switches that sense the presence of metallic and/or non-metallic objects, ultrasonic proximity switches that sense the presence of sound reflecting objects, photoelectric proximity switches that sense the presence of objects and non-mechanical magnetic proximity switches that sense the presence of objects with a magnetic field. Products covered by the scope of this document are not subjected to defined behaviours under fault conditions. Proximity switches with defined behaviour are covered by IEC 60947-5-3 and have to fulfil additional requirements. These proximity switches are self-contained, have semiconductor switching element(s) and are intended to be connected to circuits, the rated voltage of which does not exceed 250 V 50 Hz/60 Hz AC RMS or 300 V DC. Examples of typical applications for in-scope products: - factory automation and machinery industry; - logistic and packaging industry; - conveyor belts, lifts; - process industry; - power plants. Special applications (e.g. corrosive atmosphere) can cause additional requirements. This document is not intended to cover proximity switches with analogue outputs. The object of this document is to state for proximity switches: - definitions; - classification; - characteristics; - product information; - normal service, mounting and transport conditions; - constructional and performance requirements; - tests to verify rated characteristics. Products covered by the scope of this document are expected to be selected, installed, and maintained by skilled personnel only.
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This document applies to cord switches (mechanical or electronic) for appliances actuated by
hand, by foot or by other human activity, to operate or control electrical appliances and other
equipment for household or similar purposes with a rated voltage not exceeding 250 V and a
rated current not exceeding 16 A.
Throughout this document, the word "appliance" means "appliance or equipment".
These switches are intended to be operated by a person, via an actuating member or by
actuating a sensing unit. The actuating member or sensing unit can be integral or arranged
separately from the switch. The transmission of a signal between the actuating member or
sensing unit and the switch can be made either physically or electrically (for example,
electrical, optical, acoustic or thermal).
Switches which incorporate additional control functions governed by the switch function are
within the scope of this document.
This document also covers the indirect actuation of the switch when the operation of the
actuating member or sensing unit is provided by a remote control or a part of an appliance
such as a door.
NOTE 1 Electronic switches can be combined with mechanical switches giving full disconnection or
microdisconnection.
NOTE 2 Electronic switches without a mechanical switch in the supply circuit provide only electronic
disconnection. Therefore, the circuit on the load side is always considered to be live.
NOTE 3 For switches used in tropical climates, additional requirements can apply.
NOTE 4 Attention is drawn to the fact that the standards for appliances can contain additional or alternative
requirements for switches.
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This Part of IEC 61058 applies to change-over selectors (mechanical or electronic) for
appliances actuated by hand, by foot or by other human activity, to operate or control
electrical appliances and other equipment for household or similar purposes with a rated
voltage not exceeding 480 V and a rated current not exceeding 63 A.
These change-over selectors are intended to be operated by a person, via an actuating
member or by actuating a sensing unit. The actuating member or sensing unit can be integral
with or arranged separately, either physically or electrically, from the switch, and can involve
transmission of a signal, for example electrical, optical, acoustic or thermal, between the
actuating member or sensing unit and the switch.
Change-over selectors which incorporate additional control functions governed by the switch
function are within the scope of this document.
This document also covers the indirect actuation of the switch when the operation of the
actuating member or sensing unit is provided by a remote control or a part of an appliance or
equipment such as a door.
NOTE 1 Electronic change-over selectors can be combined with mechanical change-over selectors giving full
disconnection or micro-disconnection.
NOTE 2 Electronic change-over selectors without a mechanical switch in the supply circuit provide only electronic
disconnection. Therefore, the circuit on the load side is always considered to be live.
NOTE 3 For change-over selectors used in tropical climates, additional requirements can apply.
NOTE 4 Attention is drawn to the fact that the standards for appliances can contain additional or alternative
requirements for change-over selectors.
NOTE 5 Throughout this document, the word "appliance" means "appliance or equipment".
This document applies to change-over selectors intended to be incorporated in, on, or with an
appliance.
This document also applies to change-over selectors incorporating electronic devices.
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This document applies to independently mounted switches for appliances (mechanical or
electronic) actuated by hand, by foot or by other human activity, to operate or control
electrical appliances and other equipment for household or similar purposes with a rated
voltage not exceeding 480 V and a rated current not exceeding 63 A.
These switches are intended to be operated by a person, via an actuating member or by
actuating a sensing unit. The actuating member or sensing unit can be integral with or
arranged separately, either physically or electrically, from the switch and involve transmission
of a signal, for example, electrical, optical, acoustic or thermal, between the actuating
member or sensing unit and the switch.
Switches which incorporate additional control functions governed by the switch function are
within the scope of this document.
This document also covers the indirect actuation of the switch when the operation of the
actuating member or sensing unit is provided by a remote control or by a part of an appliance
or equipment, such as a door.
NOTE 1 Electronic switches can be combined with mechanical switches giving full disconnection or microdisconnection.
NOTE 2 Electronic switches without a mechanical switch in the supply circuit provide only electronic
disconnection. Therefore, the circuit on the load side is always considered to be live.
NOTE 3 For switches used in tropical climates, additional requirements can apply.
NOTE 4 Attention is drawn to the fact that the standards for appliances can contain additional or alternative
requirements for switches.
NOTE 5 Throughout this document, the word "appliance" means "appliance or equipment".
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This part of IEC 60947 applies to switches, disconnectors, switch-disconnectors and fusecombination
units and their dedicated accessories to be used in distribution circuits and motor
circuits of which the rated voltage does not exceed 1 000 V AC or 1 500 V DC.
NOTE 1 Accessories are interconnecting units, extended terminals, internal coils, auxiliary contacts, motor
operator, etc. offered as options with the basic unit.
This document does not apply to equipment coming within the scope of IEC 60947-2, IEC 60947-4-
1 and IEC 60947-5-1.
Particular requirements for switches, disconnectors, switch-disconnectors and fusecombination
units for use in photovoltaic (PV) DC applications are given in Annex D.
Specific requirements for LV switchgear intended for the connections of aluminium conductors
are given in Annex E.
Guidance on measurement of power loss is provided in Annex F.
This document does not include the additional requirements necessary for electrical
apparatus for explosive gas atmospheres.
NOTE 2 Depending on its design, a switch (or disconnector) can be referred to as "a rotary switch
(disconnector)", "cam-operated switch (disconnector)", "knife-switch (disconnector)", etc.
NOTE 3 In this document, the word "switch" also applies to the apparatus referred to in French as
"commutateurs", intended to modify the connections between several circuits and inter alia to substitute a part of a
circuit for another.
NOTE 4 In general, throughout this document, switches, disconnectors, switch-disconnectors and fusecombination
units will be referred to as "equipment".
The object of this document is to state:
a) the characteristics of the equipment;
b) the conditions that apply to the equipment with reference to:
1) operation and behaviour in normal service;
2) operation and behaviour in case of specified abnormal conditions, e.g. short-circuit;
3) dielectric properties;
c) the tests for confirming that these conditions have been met and the methods that are
adopted for these tests;
d) the information relevant to the marking of the equipment or made available by the
manufacturer, e.g. in the catalogue.
Specific items requiring agreement between the user and the manufacturer are identified in
Annex B.
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