Elektrická trakční zařízení

Oblast zaměření: Elektrická trakční zařízení
Komise : IEC/TC 9 (Electrical equipment and systems for railways)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 30.10.2018
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This document applies to electrical systems on board of vehicles of the type trolley buses, as defined in 3.1, fed with a nominal line voltage (Un) between DC 600 V . and DC 750 V .

This document defines the requirements and constructional hints, especially to avoid electrical danger to the public and to staff. Where special requirements are existing for trolley buses, hints are given for mechanical and functional safety as well as for protection against fire.

This document covers vehicles intended for public transport of persons. This document applies to:

trolley buses,

buses with current rail for guidance in the road surface,

guided buses with bipolar roof current collector.

This document does not apply to:

electric driven vehicles with only internal power supply

1) hybrid vehicles,

2) diesel - electric vehicles,

3) fuel - cell vehicles,

4) battery vehicles,

vehicles with safe protective bonding:

1) rubber tyred commuter trains,

2) guided buses with supply by a separate current rail,

3) rail guided buses with unipolar roof current collector,

vehicles operated outside publicly accessible areas:

1) electric driven lorries on motorways.

Guidance and current rails are special solutions and at this time are not under standardization like trolley bus current collectors and overhead contact lines.

It refers mainly to earthed networks, but reference is made also to galvanically insulated networks.

Oblast zaměření: Elektrická trakční zařízení
Komise : IEC/TC 9 (Electrical equipment and systems for railways)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 28.11.2018
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The purpose of this part of IEC 60077 gives additional or amended rules for high voltage (HV) fuses as a supplement to those given by IEC 60077-2.

NOTE In this document the term high voltage fuses is used in the context of the voltages used in the field of railway rolling stock.

The high voltage fuses concerned are those connected into power and/or auxiliary circuits. The nominal voltage of these circuits lies between 600 V DC and 3 000 V DC, according to IEC 60850. These fuses can also be used in auxiliary AC circuits up to a nominal voltage of 1 500 V.

NOTE Certain of these rules, after agreement between the user and the manufacturer, are used for fuses installed on vehicles other than rail rolling stock such as mine locomotives, trolleybuses, etc.

This document together with IEC 60077-2 states specifically:

a)  the characteristics of the fuses;

b)  the service conditions with which the fuses complies with reference to:

–   operation and behaviour in normal service;

–   operation and behaviour in case of short circuit;

–   dielectric properties.

c)  the tests intended for confirming the compliance of the fuse with the characteristics under the service conditions and the methods adopted for these tests;

d)  the information marked on, or given with, the fuse.

This document does not cover parallel connection of fuses.

During preparation of this document, IEC 60269-1 and IEC 60282-1 have been considered and their requirements have been kept as far as possible.

This document makes reference to the general rules for electrotechnical components given in IEC 60077-2, but for general conditions reference is made directly to IEC 60077-1.

Oblast zaměření: Elektrická trakční zařízení
Komise : IEC/TC 9 (Electrical equipment and systems for railways)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 28.11.2018
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In addition to the general requirements of IEC 60077-2, this part of IEC 60077 gives rules for AC circuit-breakers, the main contacts of which are connected to AC overhead contact lines; the nominal voltage of these circuits being in accordance with IEC 60850.

This document, together with IEC 60077-2, states specifically:

a) the characteristics of the circuit-breakers;

b) the service conditions with which circuit-breakers complies with reference to:

–   operation and behaviour in normal service;

–   operation and behaviour in short-circuit;

–   dielectric properties;

c) the tests for confirming the compliance of the components with the characteristics under the service conditions and the methods to be adopted for these tests;

d) the information to be marked on, or given with the circuit-breaker.

NOTE 1 Circuit-breakers which are dealt with in this document are provided with devices for automatic opening under pre-determined conditions other than those of overcurrent, for example, undervoltage and reversal of power current. This document does not deal with the verification of operation under such predetermined conditions.

NOTE 2 The incorporation of electronic components or electronic sub-assemblies into electrotechnical compo­nents is now common practice.

Although this document is not applicable to electronic equipment, the presence of electronic components does not provide a reason to exclude such electrotechnical components from the scope.

Electronic sub-assemblies included in the circuit-breakers complies with the relevant standard for electronics (IEC 60571).

NOTE 3 Certain of these rules, after agreement between the user and the manufacturer, is used for electrotechnical components installed on vehicles other than rail rolling stock.

This document does not cover industrial circuit-breakers which complies with IEC 62271-100. For these, in order to ensure satisfactory operation, this document is used to specify only the particular requirements for rolling stock. In such cases, a specific document states the additional requirements with which the industrial circuit-breakers comply, for example:

–   either to be adapted (e.g. for control voltage, environmental conditions, etc.);

–   or to be installed and used so that they do not have to endure specific rolling stock conditions;

–   or to be additionally tested to prove that these components can withstand satisfactorily the rolling stock conditions.

Oblast zaměření: Elektrická trakční zařízení
Komise : IEC/TC 9 (Electrical equipment and systems for railways)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 28.11.2018
Zobraz více Zobraz méně
 

In addition to the general requirements of IEC 60077-2, this part of IEC 60077 gives the rules for circuit-breakers, the main contacts of which are connected to DC power and/or auxiliary circuits. The nominal voltage of these circuits does not exceed 3 000 V DC according to IEC 60850.

This part of IEC 60077, together with IEC 60077-2, states specifically:

a) the characteristics of the circuit-breakers;

b) the service conditions with which circuit-breakers complies with reference to:

–   operation and behaviour in normal service;

–   operation and behaviour in the case of short circuit;

–   dielectric properties;

c) the tests for confirming the compliance of the components with the characteristics under the service conditions and the methods to be adopted for these tests;

d)  the information to be marked on, or given with, the circuit breaker.

NOTE 1 Circuit-breakers which are dealt with in this document are provided with devices for automatic opening under predetermined conditions other than those of overcurrent, for example, under-voltage and reversal of power current. This document does not deal with the verification of operation under such predetermined conditions.

NOTE 2 The incorporation of electronic components or electronic sub-assemblies into electrotechnical components is now common practice.

Although this document is not applicable to electronic equipment, the presence of electronic components does not provide a reason to exclude such electrotechnical components from the scope.

Electronic sub-assemblies included in circuit-breakers complies with the relevant document for electronics (IEC 60571).

NOTE 3 Certain of these rules, after agreement between the user and the manufacturer, is used for electro­technical components installed on vehicles other than rail rolling stock such as mine locomotives, trolleybuses, etc. In this case, particular additional requirements can be necessary.

This document does not cover:

a)  multi-connection of electro-technical components to achieve a particular duty;

b)  industrial circuit-breakers which complies with IEC 60947-2;

c)  DC circuit-breakers for fixed installations which complies with IEC 61992-2.

For b) and c), in order to ensure satisfactory operation, this document is used to specify only the particular requirements for rolling stock. In such cases, a specific document states the additional requirements with which the industrial or fixed installations circuits breakers comply, for example:

–   either to be adapted (for example, for control voltage, environmental conditions, etc.);

–   or to be installed and used in such a way that they do not have to endure specific rolling stock conditions;

–   or to be additionally tested to prove that these components can withstand satisfactorily the rolling stock conditions.