Bsi bs en 60034 7 1993 (2001)

www bzfxw com Copyright British Standard Provided by IHS under lice No reproduction or network ` , ` , ` ` , , ` , , ` , ` , , ` BRITISH STANDARD BS EN 60034 7 1993 IEC 60034 7 1992 Incorporating Amen[.]

BRITISH STANDARD BS EN

60034-7:1993 IEC

60034-7:1992

Incorporating Amendment No 1

Rotating electrical machines —

Part 7: Classification of types of construction, mounting arrangements and terminal box position (IM Code)

The European Standard EN 60034-7:1993 with the incorporation of amendment A1:2001 has the status of a British Standard

ICS 29.160.01

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`,`,-`-`,,`,,`,`,,` -BS EN 60034-7:1993

This British Standard, having

been prepared under the

direction of the Power

Electrical Engineering

Standards Policy Committee,

was published under the

authority of the Standards

Board and comes into effect on

15 October 1993

© BSI 5 October 2001

The following BSI references

relate to the work on this

standard:

Committee reference PEL/1

Draft for comment 87/25137 DC

ISBN 0 580 22563 1

Cooperating organizations

The European Committee for Electrotechnical Standardization (CENELEC), under whose supervision this European Standard was prepared, comprises the national committees of the following countries:

Amendments issued since publication

Amd No Date Comments

13216 5 October 2001 See national foreword

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`,`,-`-`,,`,,`,`,,` -BS EN 60034-7:1993

Contents

PageCooperating organizations Inside front cover

version of EN 60034-7:1993 Rotating electrical machines — Part 7: Classification

of types of construction mounting arrangements, and terminal box position (IM Code) including amendment A1:2001 published by the European Committee

for Electrotechnical Standardization (CENELEC) It was derived by CENELEC from IEC 60034-7:1992 including amendment 1:2000 published by the

International Electrotechnical Commission (IEC)

This British Standard supersedes BS 4999-107:1987 which is withdrawn

The start and finish of text introduced or altered by amendment is indicated in the text by tags !" Tags indicating changes to IEC text carry the number of the IEC amendment For example, text altered by IEC amendment 1 is indicated

by !"

From 1 January 1997, all IEC publications have the number 60000 added to the old number For instance, IEC 27-1 has been renumbered to IEC 60027-1 For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems

A British Standard does not purport to include all the necessary provisions of a contract Users of British Standards are responsible for their correct application

Compliance with a British Standard does not of itself confer immunity from legal obligations.

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(includes amendment A1:2001)(IEC 60034-7:1992 + A1:2000)

Machines électriques tournantes —

Partie 7: Classification des modes de

construction, des dispositions de montage et

position de la boîte à bornes (Code IM)

(inclut l’amendement A1:2001)

(CEI 60034-7:1992 + A1:2000)

Drehende elektrische Maschinen — Teil 7: Klassifizierung der Bauarten, der Aufstellungsarten und der Klemmkasten-Lage (IM-Code)

(enthält Anderung A1:2001) (IEC 60034-7:1992 + A1:2000)

This European Standard was approved by CENELEC on 1992-03-24

Amendment A1 was approved by CENELEC on 2000-11-01 CENELECmembers are bound to comply with the CEN/CENELEC Internal Regulationswhich stipulate the conditions for giving this European Standard the status of anational standard without any alteration

Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to anyCENELEC member

This European Standard exists in three official versions (English, French,German) A version in any other language made by translation under theresponsibility of a CENELEC member into its own language and notified to theCentral Secretariat has the same status as the official versions

CENELEC members are the national electrotechnical committees of Austria,Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland andUnited Kingdom

CENELEC

European Committee for Electrotechnical StandardizationComité Européen de Normalisation ElectrotechniqueEuropäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B-1050 Brussels

© 1993 Copyright reserved to CENELEC members

Ref No EN 60034-7:1993 + A1:2001 E

The text of document 2H(CO)29, as prepared by

subcommittee 2H: Degrees of protection, methods of

cooling and mounting arrangements, of IEC

technical committee 2: Rotating machinery, was

submitted to the IEC-CENELEC parallel vote in

The text of document 2/1095/FDIS, future

amendment 1 to IEC 60034-7:1992, prepared by

IEC TC 2, Rotating machinery, was submitted to the

IEC-CENELEC parallel vote and was approved by

with horizontal shafts (IM B ) 6Table 2 — Designations for machines

with vertical shafts (IM V ) 8Table 3 — Significance of the first numeral 13Table 4 — Significance of the fourth

Table 5 — Significance of second and third numerals for first numeral 1 15Table 6 — Significance of second and

third numerals for first numeral 2 16Table 7 — Significance of second and

third numerals for first numeral 3 17Table 8 — Significance of second and

third numerals for first numeral 4 18Table 9 — Significance of second and

third numerals for first numeral 5 19Table 10 — Significance of second and

third numerals for first numeral 6 20Table 11 — Significance of second and

third numerals for first numeral 7 21Table 12 — Significance of second and

third numerals for first numeral 8 22Table 13 — Significance of second and

third numerals for first numeral 9 23

— latest date of publication of

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Two systems of classification are provided as follows:

The type of machine not covered by Code II should be fully described in words

The relationship between Code I and Code II is given in Annex A

1.2 Definitions

For the purposes of this part of IEC 34, the following definitions apply:

1.2.1 type of construction

the arrangement of machine components with regard to fixings, bearing arrangement and shaft extension (IEV 411-13-34)1)

1.2.2 mounting arrangement

the orientation on site of the machine as the whole with regard to shaft alignment and position of fixings (IEV 411-13-35)

1.2.3 shaft extension

a portion of a shaft extending beyond an extreme bearing (IEV 411-13-07)

NOTE The bearing may be on the machine itself or be part of an assembly comprising a machine and (an) additional bearing(s).

1.2.4 drive-end of a machine (D-end)

that end of the machine which accommodates the shaft end (IEV 411-13-36)

NOTE This is normally the driving end of a motor or the driven end of a generator.

Where for some machines the above definition is inadequate, the D-end is defined as follows:

a) machine with two shaft extensions of different diameter: the end with the larger shaft diameter;

b) machine with a cylindrical shaft extension and a conical shaft extension of the same diameter: the end with cylindrical shaft extension;

c) machine with other arrangements: according to IEC 34-8 if applicable; otherwise by agreement

NOTE The outer diameter of a forged-on flange is taken to be the diameter of the shaft extension.

1.2.5 non-drive end of the machine (N-end)

that end of the machine opposite to the drive end (IEV 411-13-37)

— Code I (see section 2): An alpha-numeric designation applicable to machines with endshield

bearing(s) and only one shaft extension

— Code II (see section 3): An all-numeric designation applicable to a wider range of types of

machines including types covered by Code I

1) IEC 50 (411):1973, International Electrotechnical Vocabulary (IEV), Chapter 411: Rotating machines.

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EN 60034-7:1993

2.1 Designation of machines with horizontal shafts

In Code I, a machine with a horizontal shaft is designated by the Code letters IM (International Mounting), followed by a space, the letter B and one or two numerals, as shown in Table 1

EN 60034-7:1993

Section 2

Table 1 — Designations for machines with horizontal shafts (IM B )

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EN 60034-7:1993

Section 2

2.2 Designation of machines with vertical shafts

In Code I, a machine with a vertical shaft is designated by the Code letters IM (International Mounting)

followed by a space, the letter V and one or two numerals, as shown in Table 2

Table 2 — Designations for machines with vertical shafts (IM V )

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EN 60034-7:1993

Section 2

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2.3 Terminal box location

When designated, the terminal box position shall be coded with a final letter in accordance with the

following rules:

a) machines with feet shall be viewed from the D-end with the feet at 6 o’clock;

b) machines with flange only and with drains shall be viewed from the D-end and with the drains

at 6 o’clock;

c) other configurations shall not have a coding

The coding shall conform to the following table:

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The first, second and third numerals designate aspects of construction (see 3.2 and 3.4).

The fourth numeral designates the type of shaft extension (see 3.3).

!When used, a letter following the four numerals shall designate the terminal box position, see 3.5."

3.2 Significance of the first numeral

The significance of the first numeral is given in Table 3 below

Table 3 — Significance of the first numeral

3.3 Significance of the fourth numeral

The significance of the fourth numeral is given in Table 4 below

Table 4 — Significance of the fourth numeral

3.4 Significance of the second and third numerals

The significance of the second and third numerals is specified in Table 5, Table 6, Table 7, Table 8, Table 9, Table 10, Table 11, Table 12 and Table 13 depending on the first numeral with which they are associated (see Table 3)

First numeral Significance Table relevant to the second and

third numerals

0123456789

Not allocatedFoot-mounted machines with endshield bearing(s) onlyFoot-and-flange-mounted machines with endshield bearing(s) onlyFlange-mounted machines with endshield bearing(s) only, with a flange part

of an endshieldFlange-mounted machines with endshield bearing(s) only, with a flange not part of an endshield but an integral part of the frame or other componentMachines without bearings

Machines with endshield bearing(s) and pedestal bearing(s)Machines with pedestal bearing(s) only

Vertical machines of construction not covered by first numerals 1 to 4Machines with special mounting arrangements

—5678910111213

0123456789

No shaft extensionOne cylindrical shaft extensionTwo cylindrical shaft extensionsOne conical shaft extensionTwo conical shaft extensionsOne flanged shaft extensionTwo flanged shaft extensionsFlanged shaft extension (D-end) and cylindrical shaft extension (N-end)(Not allocated)

Other arrangement

3.5 Terminal box location

When designated, the terminal box position shall be coded with a final letter in accordance with the

following rules:

a) machines with feet shall be viewed from the D-end with the feet at 6 o’clock;

b) machines with flange only and with drains shall be viewed from the D-end and with the drains

at 6 o’clock;

c) other configurations shall not have a coding

The coding shall conform to the following table:

"



3.6 Examples of designations 

In Table 5 to Table 13 common types of construction and mounting arrangements are illustrated by

sketches, and their designations are given using a particular fourth numeral Other fourth numerals could

be applicable (see Table 4) The absence of a sketch does not imply that a designation is not available

Numerals to which a significance has been allocated in the appropriate tables may be combined to form a

valid designation Some of these designations may be impracticable

Letter designation Terminal box location

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EN 60034-7:1993

Section 3

Table 5 — Significance of second and third numerals for first numeral 1

(Foot-mounted machines with endshield bearing(s) only)

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end-shield, but an integral part of the frame or other component)

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EN 60034-7:1993

Section 3

Table 9 — Significance of second and third numerals for first numeral 5

(Machines without bearings)

EN 60034-7:1993

Section 3

Table 10 — Significance of second and third numerals for first numeral 6

(Machines with endshield bearings and pedestal bearings)

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EN 60034-7:1993

Section 3

Table 11 — Significance of second and third numerals for first numeral 7

(Machines with pedestal bearings only)

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EN 60034-7:1993

Section 3

Table 13 — Significance of second and third numerals for first numeral 9

(Machines with special mounting arrangements)

EN 60034-7:1993

Annex A (informative)

Relationship between Code I and Code II

The relationship between Code I and Code II is given in Table A1 and Table A2

Table A1 — Relationship between Code I and Code II for machines with horizontal shafts (IM B )

Table A2 — Relationship between Code I and Code II for machines with vertical shafts (IM V )

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Association of Consulting EngineersAssociation of Electrical Machinery TradesElectricity Association

Engineer Surveyors Section of the MSFEngineering Equipment and Materials Users’ AssociationERA Technology Ltd

Health and Safety ExecutiveInstitution of Incorporated Executive EngineersInstitution of Plant Engineers

Ministry of DefencePower Generation Contractors Association (BEAMA Ltd.)Rotating Electrical Machines Association (BEAMA Ltd.)United Kingdom Offshore Operators’ Association

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