HD 129.7 S1:1977

SLOVENSKI STANDARD
01-januar-2004
[Not translated]
Flanges for waveguides - Part 7: Relevant specifications for flanges for square
waveguides (IEC 60154-7:1974)
Flansche für Hohlleiter - Teil 7: Sonderbestimmungen für Flansche für quadratische
Hohlleiter (IEC 60154-7:1974)
Brides pour guides d'ondes - Partie 7: Spécifications particulières des brides pour guides
d'ondes carrés (CEI 60154-7:1974)
Ta slovenski standard je istoveten z: HD 129.7 S1:1977
ICS:
23.040.60 Prirobnice, oglavki in spojni Flanges, couplings and joints
elementi
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

NORME CEI
INTERNATIONALE IEC
60154-7
INTERNATIONAL
Première édition
STANDARD
First edition
1974-01
Brides pour guides
d'ondes
Septième partie:
Spécifications particulières
de brides
pour guides
d'ondes carrés
Flanges for waveguides
Part 7:
Relevant specifications for flanges
for square waveguides
© IEC 1974 Droits de reproduction réservés —
Copyright - all rights reserved
Aucune partie de cette
publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
utilisée
sous quelque forme que ce soit et par aucun any form or by any means, electronic or mechanical,
procédé, électronique ou mécanique,
y compris la photo- including photocopying and microfilm, without permission in
copie et les microfilms, sans
l'accord écrit de l'éditeur writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http: //www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
H
PRICE CODE
International Electrotechnical Commission
IEC
MeniayHapoLHaH 3neKTpoTexHH4ecKaR HoMKCCHK
Pour prix, voir catalogue en vigueur
• • For price, see current catalogue

CONTENTS
Page
FOREWORD 5
PREFACE 5
Clause
1. General 9
1.1 Standardized types 9
1.2 Type designation 9
2. Mechanical requirements 9
2.1 General requirements both for assemblies and for unmounted flanges 9
2.2 General requirements for assemblies 11
2.3 Additional requirements for unmounted flanges 11
Type K flanges
154 I E C—UKQ 41—UKQ 130
154 I E C—PKQ 41—PKQ 130
Drawing—Figure 1 14
Table I 15
— 5 —
INTERNATIONAL ELECTROTECHNICAL COMMISSION
FLANGES FOR WAVEGUIDES
Part 7 : Relevant specifications for flanges for square waveguides
FOREWORD
1) The formal decisions or agreements of the I EC on technical matters, prepared by Technical Committees on which all the National
Committees having a special interest therein are represented, express, as nearly as possible, an international consensus of opinion
on the subjects dealt with.
2) They have the form of recommendations for international use and they are accepted by the National Committees in that sense.
3) In order to promote international unification, the I EC expresses the wish that all National Committees should adopt the text of the
I EC recommendation for their national rules in so far as national conditions will permit. Any divergence between the I EC recom-
mendations and the corresponding national rules should, as far as possible, be clearly indicated in the latter.
4) The I EC has not laid down any procedure concerning marking as an indication of approval and has no responsibility when an item
of equipment is declared to comply with one of its recommendations.
PREFACE
This recommendation has been prepared by Sub-Committee 46B, Waveguides and their Accessories, of IEC Technical Committee
No. 46, Cables, Wires and Waveguides for Telecommunication Equipment.
It forms the seventh part of the complete recommendation dealing with flanges for waveguides, and should be used in conjunction
with Part 1, General Requirements and Measuring Methods, issued as Publication 154-1.
Detail specifications for other types of waveguide are issued in companion publications.
The general outline of this recommendation was first discussed at the meeting held in Tel Aviv in 1966. A revised draft was prepared
and discussed during the meeting held in London in 1968. As a result of this latter meeting, a draft, document 46B(Central Office)40,
was submitted to the National Committees for approval under the Six Months' Rule, then amended by document 46B(Central
Office)40A, in March and April respectively.
Although the draft received formal approval, it was decided at the meeting of Sub-Committee 46B in The Hague in 1970 that a draft,
document 46B(Central Office)52, containing only a revised drawing, be submitted to the National Committees for approval under the
Two Months' Procedure in July 1971.
Following the meeting in The Hague, it was discovered that there had been no proposal for flanges for square waveguide sizes Q54,
Q100 and Q130. Prior to the Helsinki meeting, document 46B(Central Office)57 was prepared and submitted to the National
Committees for approval under the Six Months' Rule in August 1972.
During the 1973 Helsinki meeting, it was decided that the circular tolerancing method should apply to the dimensioning of square
waveguide flanges.
The three approved Six Months' drafts and the approved Two Months' Procedure document have been combined to form this
recommendation.
Some editorial comments were discussed and accepted at the meeting held in Helsinki in 1973.
The following countries voted explicitly in favour of publication:

Documents Document Document
46B(Central Office) 40 and 40A 46B(Central Office) 52 46B(Central Office) 57
Australia Australia Belgium
Belgium Belgium Denmark
Czechoslovakia Denmark France
Denmark Germany Germany
Germany Iran Israel
Iran Italy Italy
Israel Japan Japan
— 7 —
Document
Documents Document
46B(CentralOfftce)40 and 40A 46B( Central Office) 52 46B( Central Oice)57
Italy Netherlands Norway
Japan Norway Sweden
Sweden Turkey
Norway
Poland Switzerland United Kingdom
United States of America
Sweden Turkey
United Kingdom
Switzerland
United States of America
Turkey
United Kingdom
United States of America
It should be noted that no recommendations are made for the materials to be used for the waveguide flanges. The choice of material
shall be agreed between purchaser and manufacturer.
DIMENSIONAL DEVIATIONS
The values for the permissible deviations in this recommendation follow the principles given in ISO Recommen-
dation R286, ISO System of Limits and Fits, where:
Deviation is defined as:
Algebraical difference between a size (actual, maximum, etc.) and the corresponding basic size.
Upper deviation is defined as:
Algebraical difference between the maximum limit of size and the corresponding basic size.
And lower deviation is defined as:
Algebraical difference between the minimum limit of size and the corresponding basic size.
It should be noted that the upper and lower deviations may have like signs, unlike signs or either deviation may
be zero. This permits the basic sizes of mating shafts and holes to be identical.
The older concept of plus tolerances and minus tolerances has an undesirable limitation, in that the basic sizes
of mating shafts and holes cannot be identical for clearance fits.

— 9 --
FLANGES FOR WAVEGUIDES
Part 7 : Relevant specifications for flanges for square waveguides
Clause No. Item
General
1.1 Standardized types
The series of flanges for square waveguides covered by this recommendation are
shown in Table I.
Type designation
1.2
Waveguide flanges covered by this recommendation shall be indicated by a reference
number comprising the following information:
a) The number of the present I E C Publication (154).
b) The letters " I E C ".
A dash.
c)
d) A letter relating to the basic construction of the flange, viz:
P = a flange with a gasket groove (this groove accommodates either a gas-
tig
...