Flexible printed circuit boards (FPCBs) - Method to decrease signal loss by using noise suppression materials

IEC TR 63018:2015(E) specifies a guideline for improvement of signal loss by using noise suppression materials (hereafter referred to as NSMs) for FPCBs. This Technical Report also indicates a measuring method of signal loss variations of FPCBs using NSMs using network analyzer equipment. In addition, this method only measures the value of the signal loss variation by using NSMs for FPCBs. This report, however, neither determines nor indicates the structure or material of FPCBs.

Vodne turbine, akumulacijske črpalke in črpalne turbine – Razpisna dokumentacija – 7. del: Smernice za tehnične specifikacije akumulacijskih črpalk

General Information

Status
Published
Publication Date
15-Dec-2015
Drafting Committee
Current Stage
PPUB - Publication issued
Start Date
15-Mar-2016
Completion Date
16-Dec-2015

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Standards Content (Sample)


SLOVENSKI STANDARD
01-april-1999
9RGQHWXUELQHDNXPXODFLMVNHþUSDONHLQþUSDOQHWXUELQH±5D]SLVQDGRNXPHQWDFLMD
±GHO6PHUQLFH]DWHKQLþQHVSHFLILNDFLMHDNXPXODFLMVNLKþUSDON
Hydraulic turbines, storage pumps and pump-turbines - Tendering Documents - Part 7:
Guidelines for technical specifications for storage pumps
Ta slovenski standard je istoveten z: IEC/TR 61366-7
ICS:
27.140 Vodna energija Hydraulic energy engineering
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL IEC
REPORT – TYPE 3
61366-7
First edition
1998-03
Hydraulic turbines, storage pumps
and pump-turbines –
Tendering Documents –
Part 7:
Guidelines for technical specifications
for storage pumps
Turbines hydrauliques, pompes d’accumulation
et pompes-turbines –
Documents d’appel d’offres –
Partie 7:
Guide des spécifications techniques
pour les pompes d'accumulation
 IEC 1998  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in 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
Commission Electrotechnique Internationale
PRICE CODE
V
International Electrotechnical Commission
For price, see current catalogue

– 2 – 61366-7 © IEC:1998(E)
CONTENTS
12 Page
FOREWORD . 4
Clause
0 Introduction to technical specifications . 7
1 Scope. 9
2 Reference documents . 9
3 Technical requirements. 9
3.1 Scope of work. 9
3.2 Limits of the contract . 10
3.3 Supply by Employer . 11
3.4 Design conditions . 11
3.5 Technical performance and other guarantees. 15
3.6 Mechanical design criteria . 18
3.7 Design documentation . 18
3.8 Materials and construction . 19
3.9 Shop inspection and testing . 20
4 Technical specifications for fixed/embedded components. 21
4.1 Spiral case . 22
4.2 Diffuser ring . 23
4.3 Foundation ring . 23
4.4 Suction tube and suction tube liner (if any). 23
4.5 Pit liner. 24
4.6 Conveyor case and return ring (if any). 24
5 Technical specifications for stationary/removable components . 24
5.1 Headcover and bottom ring . 24
5.2 Stationary wearing rings. 25
5.3 Replaceable diffuser ring . 25
6 Technical specifications for rotating parts, bearings and seals. 25
6.1 Impeller . 25
6.2 Main shaft . 25
6.3 Guide bearing. 26
6.4 Main shaft seal . 26
6.5 Sandstill (maintenance) seal . 26
7 Technical specifications for thrust bearing. 27
7.1 Design. 27
7.2 Bearing support . 27
7.3 Bearing assembly . 27
7.4 Oil injection pressure lift system. 27

61366-7 © IEC:1998(E) – 3 –
Clause Page
8 Technical specifications for miscellaneous components . 27
8.1 Walkways, access platforms and stairs . 27
8.2 Lifting fixtures. 28
8.3 Special tools. 28
8.4 Standard tools . 28
8.5 Storage pump pit hoist. 28
8.6 Nameplate. 28
9 Technical specifications for auxiliary systems. 28
9.1 Bearing lubrication system . 28
9.2 Impeller pressure balancing and pressure relief lines . 29
9.3 Storage pump pit drainage. 29
9.4 Tailwater depression system. 29
10 Technical specifications for instrumentation . 29
10.1 Controls. 29
10.2 Indication. 29
10.3 Protection. 29
11 Spare parts. 29
12 Model acceptance tests . 30
13 Site installation and commissioning tests . 31
13.1 General . 31
13.2 Installation procedures. 31
13.3 Tests during installation . 31
13.4 Commissioning tests. 31
14 Field acceptance tests . 32
14.1 Scope and reports . 32
14.2 Inspection of cavitating pitting. 32

– 4 – 61366-7 © IEC:1998(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
HYDRAULIC TURBINES, STORAGE PUMPS AND PUMP-TURBINES –
TENDERING DOCUMENTS –
Part 7: Guidelines for technical specifications
for storage pumps
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization
for Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
The main task of IEC technical committees is to prepare International Standards. In
exceptional circumstances, a technical committee may propose the publication of a technical
report of one of the following types:
• type 1, when the required support cannot be obtained for the publication of an International
Standard, despite repeated efforts;
• type 2, when the subject is still under technical development or where for any other reason
there is the future but no immediate possibility of an agreement on an International
Standard;
• type 3, when a technical committee has collected data of a different kind from that which is
normally published as an International Standard, for example "state of the art".
Technical reports of types 1 and 2 are subject to review within three years of publication to
decide whether they can be transformed into International Standards. Technical reports of
type 3 do not necessarily have to be reviewed until the data they provide are considered to be
no longer valid or useful.
IEC 61366-7, which is a technical report of type 3, has been prepared by IEC technical
committee 4: Hydraulic turbines.

61366-7 © IEC:1998(E) – 5 –
The text of this technical report is based on the following documents:
Committee draft Report on voting
4/110/CDV 4/122/RVC
Full information on the voting for the approval of this technical report can be found in the report
on voting indicated in the above table.
Technical Report IEC 61366-7 is one of a series which deals with Tendering Documents for
hydraulic turbines, storage pumps and pump-turbines. The series consists of seven parts:
IEC 61366-1: General and annexes (IEC 61366-1)
Part 2: Guidelines for technical specification for Francis turbines (IEC 61366-2)
Part 3: Guidelines for technical specification for Pelton turbines (IEC 61366-3)
Part 4: Guidelines for technical specification for Kaplan and propeller turbines (IEC 61366-4)
Part 5: Guidelines for technical specification for tubular turbines (IEC 61366-5)
Part 6: Guidelines for technical specification for pump-turbines (IEC 61366-6)
Part 7: Guidelines for technical specification for storage pumps (IEC 61366-7)
Parts 2 to 7 are "stand-alone" publications which when used with IEC 61366-1 contain
guidelines for a specific machine type (i.e. Parts 1 and 4 represent the combined guide for
Kaplan and propeller turbines). A summary of the proposed contents for a typical set of
Tendering Documents is given in the following table 1 and annex A. Table 1 summarizes the
arrangement of each part of this guide and serves as a reference for the various chapters and
sections of the Tendering Documents (see 3.2 of this Part).
A bilingual edition of this technical report may be issued at a later date.

Table 1 – Summary of guide for the preparation of Tendering Documents for hydraulic turbines, storage pumps and pump-turbines
CONTENTS OF GUIDE IEC 61366-1 TO IEC 61366-7 SAMPLE TABLE OF CONTENTS OF TENDERING DOCUMENTS (TD)
(Example for the Francis turbines; see 61366-1, annex A)
Part Clause Title Chapter Title
1 General and annexes 1 Tendering requirements
1– 2 Project information
1 1 Object and scope of this guide 3 General conditions
1 2 Reference documents and definitions 4 Special conditions
1 3 Arrangement of
...


IEC TR 63018 ®
Edition 1.0 2015-12
TECHNICAL
REPORT
colour
inside
Flexible printed circuit boards (FPCBs) – Method to decrease signal loss by
using noise suppression materials

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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IEC TR 63018 ®
Edition 1.0 2015-12
TECHNICAL
REPORT
colour
inside
Flexible printed circuit boards (FPCBs) – Method to decrease signal loss by

using noise suppression materials

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.180 ISBN 978-2-8322-3082-4

– 2 – IEC TR 63018:2015 © IEC 2015
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Test guideline . 6
3.1 Apparatus . 6
3.1.1 Network analyzer . 6
3.1.2 Block diagram for signal loss measuring . 6
3.2 Test specimen . 7
3.2.1 Structure . 7
3.2.2 Preparation . 8
3.2.3 Test method . 8
3.2.4 Calculation . 9
3.2.5 Test result . 9
3.2.6 Analysis . 12
3.3 Improvement method of signal loss for a shield FPCB . 13
Annex A (normative) Block diagram of signal loss test system . 14

Figure 1 – Bare/shield FPCB . 5
Figure 2 – Increment of signal loss using NSMs . 5
Figure 3 – Signal loss test system . 6
Figure 4 – Schematic diagram for two type of test specimen . 7
Figure 5 – Cross-section of shield FPCB . 8
Figure 6 – Difference of signal loss between bare and shield FPCBs . 9
Figure 7 – Signal loss value of the bare and shield FPCB . 10
Figure 8 – Signal loss variation according to the Cu conductive layer thickness . 11
Figure 9 – Signal loss variation according to the Cu signal line width . 11
Figure 10 – Two types of structure for FPCB . 12
Figure 11 – Electric field diagram for two types of shield FPCB . 13
Figure A.1 – Block diagram of signal loss test system . 14
Figure A.2 – Signal loss test system according to the Agilent network analyzer N5230A . 14

Table 1 – Comparison of cut-off frequency with bare/shild FPCB . 10

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FLEXIBLE PRINTED CIRCUIT BOARDS (FPCBs) – METHOD TO DECREASE
SIGNAL LOSS BY USING NOISE SUPPRESSION MATERIALS

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
The main task of IEC technical committees is to prepare International Standards. However, a
technical committee may propose the publication of a technical report when it has collected
data of a different kind from that which is normally published as an International Standard, for
example "state of the art".
IEC TR 63018, which is a technical report, has been prepared by IEC technical committee 91:
Electronics assembly technology.
The text of this technical report is based on the following documents:
Enquiry draft Report on voting
91/1284/DTR 91/1309/RVC
Full information on the voting for the approval of this technical report can be found in the
report on voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – IEC TR 63018:2015 © IEC 2015
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
INTRODUCTION
In recent years, since the use of smart phones, and other mobile and display devices has
increased significantly, the supply of FPCBs has also been largely extended. Specifically,
since the FPCB devices seek high speed performance, the requirements with respect to
electromagnetic interference (EMI) suppression in the devices has also grown in importance.
Therefore, FPCBs used inside smart phones employ noise suppression materials (NSMs) to
solve EMI problems, as shown in Figure 1.
IEC
Figure 1 – Bare/shield FPCB
However, an application of noise suppression materials (NSMs) for FPCBs reaches the limit
concerning the problem of incrementation of signal loss. Therefore, FPCB and NSMs
manufacturers need to analyse signal loss variations of FPCBs shielded by NSMs, as shown
in Figure 2.
Bare FPCB
Shield FPCB
Frequency (GHz)
IEC
Figure 2 – Increment of signal loss using NSMs
As FPCBs are used with high frequency, the problem of signal loss becomes more significant.
As the user of FPCBs has a demand for the lowest value of signal loss by using NSMs,
suppliers of FPCBs have to anticipate an appropriate design in order to achieve an adequate
signal loss value.
Transmission loss (dB)
– 6 – IEC TR 63018:2015 © IEC 2015
FLEXIBLE PRINTED CIRCUIT BOARDS (FPCBs) – METHOD TO DECREASE
SIGNAL LOSS BY USING NOISE SUPPRESSION MATERIALS

1 Scope
This Technical Report specifies a guideline for improvement of signal loss by using noise
suppression materials (hereafter referred to as NSMs) for FPCBs.
This Technical Report also indicates a measuring method of signal loss variations of FPCBs
using NSMs using network analyzer equipment. In addition, this method only measures the
value of the signal loss variation by using NSMs for FPCBs. This report, however, neither
determines nor indicates the structure or material of FPCBs.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 62333-1:2006, Noise suppression sheet for digital devices and equipment – Part 1:
Definitions and general propert
...

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