SIST EN 60514:1995
(Main)Acceptance inspection of Class 2 alternating-current watthour meters
Acceptance inspection of Class 2 alternating-current watthour meters
Methods for acceptance inspection (100% inspection and statistical sampling inspection) and testing of newly manufactured direct connected induction type watthour meters of Class 2 which are produced and delivered in large quantities. For type tests see EN 60521. This publication has the status of a report.
Annahmeprüfung von Wechselstrom-Wirkverbrauchzählern der Klasse 2
Contrôle de réception des compteurs à courant alternatif de la classe 2
Méthodes pour les essais et contrôles de réception (à 100% et par échantillonnage) des compteurs à induction, neufs, à branchement direct, fabriqués et livrés en grandes quantités. Pour les essais de type, utiliser la EN 60521. Cette publication a le statut d'un rapport.
Prevzemna kontrola za števce električne delovne energije izmeničnega toka razreda 2
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 60514:1995
01-avgust-1995
3UHY]HPQDNRQWUROD]DãWHYFHHOHNWULþQHGHORYQHHQHUJLMHL]PHQLþQHJDWRND
UD]UHGD
Acceptance inspection of Class 2 alternating-current watthour meters
Annahmeprüfung von Wechselstrom-Wirkverbrauchzählern der Klasse 2
Contrôle de réception des compteurs à courant alternatif de la classe 2
Ta slovenski standard je istoveten z: EN 60514:1995
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
SIST EN 60514:1995 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 60514:1995
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SIST EN 60514:1995
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SIST EN 60514:1995
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SIST EN 60514:1995
RAPPORT
CEI
TECHNIQUE IEC
514
TECHNICAL
Première édition
REPORT
First edition
1975
Contrôle de réception des compteurs
à courant alternatif de la classe 2
Acceptance inspection of Class 2
alternating-current watthour meters
© CEI 1975 Droits de reproduction réservés — Copyright — all rights reserved
Aucune partie de cette publicat ion ne peut âtre reproduite ni No part of this publication may be reproduced or utilized in
utilisée sous quelque forme que ce soit et par aucun pro- any form or by any means, electronic or mechanical,
cédé, électronique ou mécanique, y compris la photocopie et including photocopying and microfilm, without permission
les microfilms, sans l'accord écrit de l'éditeur. in writing from the publisher.
Bureau Central de la Commission Electrotechnique Internationale 3, rue de Varembé Genève, Suisse
Commission Electrotechnique Internationale CODE PRIX
International Electrotechnical Commission PRICE COD E VV
Me>KtiyHapoaHan 3neraporexHHHecnaR KOMHCCHR
IEC
Pour prix, voir
catalogue en vigueur
•
For price, see current catalogue
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SIST EN 60514:1995
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CONTENTS
Page
FOREWORD 5
PREFACE 5
INTRODUCTION 7
Clause
1. Scope 7
2. General remarks 7
3. Units 9
4. Definitions 9
13
Acceptance conditions for batches 5.
13
6. Place of inspection
13
7.- Test conditions
13
7.1 Reference conditions
15
7.2 Uncertainty of measurement
15
7.3 Cover and seal
15
8. Inspection and test procedure
8.1 Preliminary tests and pre-conditioning 17
8.2 Test No. 1: dielectric properties 17
17 8.3 Test No. 2: running with no-load
17
8.4 Test No. 3: starting
17
8.5 Tests Nos. 4 to 9: accuracy
19
8.6 Test No. 10: verification of meter constant
19
8.7 Test No. 11: mechanical inspection
19
9. Requirements corresponding to different inspection procedures
19
9.1 100% inspection
21
9.2 Sampling inspection
Tables
15
I. Reference conditions
17
II. Test points and limits of errors
19
III. Acceptance number c
22
IV. Random numbers
Sampling plans 25
V.
29
VI. Double sampling plan
31
VII. Specified values for the standard deviation method
33
VIII. Specified values for the average range method
IXa. Operating characteristic curves N , 100 36
37
IXb. Operating characteristic curves 101 N= 500
38
IXc. Operating characteristic curves 501 ENE 1 000
39
X. Inspection sheet
40
XIa. Acceptance trapezium, T = 3.5%
41
XIb. Acceptance trapezium, T = 3.0%
XIc. Acceptance trapezium, T = 2.5% 42
A – Explanatory notes concerning sampling procedures for Class 2 watthour meters 45
APPENDIX
71
APPENDIX B – Symbols
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SIST EN 60514:1995
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INTERNATIONAL ELECTROTECHNICAL COMMISSION
ACCEPTANCE INSPECTION OF CLASS 2 ALTERNATING-CURRENT
WATTHOUR METERS
FOREWORD
1) The formal decisions or agreements of the IEC 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 IEC expresses the wish that all National Committees should adopt the text of the
IEC recommendation for their national rules in so far as national conditions will permit. Any divergence between the IEC recommen-
dation and the corresponding national rules should, as far as possible, be clearly indicated in the latter.
PREFACE
This report has been prepared by Sub-Committee 13A, Integrating Meters, of IEC Technical Committee
No. 13, Measuring Instruments.
Drafts were discussed at the meetings held in Budapest in 1970, in S tresa in 1971 and in Toronto in 1972.
As a result of this latter meeting, a draft, document 13A(Central Office)35, was submitted to the National
Committees for approval under the S ix Months' Rule in July 1973.
The following countries voted explicitly in favour of publication:
Argentina Italy
Austria Netherlands
Belgium Poland
Denmark Portugal
South Africa (Republic of)
Egypt
France Sweden
Germany Switzerland
Hungary Turkey
India Yugoslavia
Israel
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SIST EN 60514:1995
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ACCEPTANCE INSPECTION OF CLASS 2 ALTERNATING-CURRENT
WATTHOUR METERS
INTRODUCTION
1) It is emphasized that this publication is a report and does not constitute either a standard or a specifi-
cation.
This report describes, in some detail, methods for acceptance inspection, and testing of newly manufactured
watthour meters of Class 2 delivered in large quantities.
In this report wider error limits than those for type tests specified in the relevant publications have been
allowed because:
– acceptance testing conditions have wider tolerances than those for type tests;
– displacing of the zero axis is not applicable for acceptance testing;
– the effects of handling of meters are taken into account.
2) This report has been issued with the object of enabling experience to be gained with meter acceptance
testing methods (100% inspection and statistical sampling inspection). The intention is that the contents will be
reviewed and the explanatory Appendix A deleted. In addition, the question of changing the status of this
publication from a report to a standard will then be considered.
With these objects in view, the comments of National Committees are invited in three years' time.
Scope
1.
The methods and procedures included in this report apply to newly manufactured direct connected induction
I E C Publication* 521, which are produced and delivered in large
type watthour meters of Class 2, covered by
quantities.
They provide for 100% inspection or sampling inspection for acceptance by the purchaser.
2. General remarks
2.1 Two methods of acceptance inspection are proposed, namely:
– 100% inspection, and
– sampling inspection.
2.2 The 100% inspection consists of testing all the meters of a batch.
2.3 The sampling inspection is based upon the principles of mathematical statistics and as a consequence
certain specified risks are undertaken both by the manufacturer and the purchaser. However, sampling inspec-
tion generally is more economical than 100% inspection.
In this report sampling inspection has been planned so that, in practice, the quality of the meter batches can be
judged with nearly the same accuracy as with 100% inspection.
2.4 Two methods of sampling inspection are described:
– inspection by attributes;
– inspection by variables.
These two methods have been chosen so that the judgement of quality is virtually the same for both methods.
2.5 Inspection by gives results indicating conformity or non-conformity.
attributes
It shall be applied when the characteristic under inspection cannot be measured.
It shall also be applied when a characteristic can be measured but the values are not of normal distribution
(Laplace-Gauss).
It
may be applied, when the distribution is approximately normal, in place of inspection by variables.
The advantage of inspection by attributes is its simplicity of application.
* Class 0.5, 1 and 2 alternating-current watthour meters (being printed).
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SIST EN 60514:1995
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gives additional information but it is applicable only when the values of a
2.6 Inspection by variables
characteristic are measurable and when those values are approximately normally distributed. In these circum-
stances, inspection by variables is the recommended method.
The advantage of inspection by variables is a smaller sample size than by attributes for the same risk of
decision. However, it requires more calculation.
The test results are represented by:
x = the sample mean as an estimation of the batch mean;
s = the
in the batch.
standard deviation l as an estimation of the dispersion of the characteristic x
w = the average range J
average range is easier to calculate than the standard deviation. However, when suitable calculating means are available for
Note. -The
making a decision and for preparing additional information, the use of the standard deviation enables the efficiency of the method
to be increased for the same sample size.
3. Units
The units employed in this report are those used by the IEC.
4. Definitions
For definitions concerning meters, reference is made to IEC Publication 521. The majority of the defi-
nitions of sampling techniques are generally in accordance with the Glossary (1972) of the European Organiz-
1786 (1970)*, Statistical
645 (1967) and ISO/R
ISO/R
ation for Quality Control (E.O.Q.C.) and with
Vocabulary and Symbols.
Batch
4.1
A definite quantity of meters of the same type, of the same voltage and current rating and the same register,
delivered by one supplier, manufactured or produced under conditions which are presumed uniform.
4.2 Batch size
The number N of meters in a batch (ISO).
4.3 Sample
Meters taken at random for inspection from a batch.
4.4
Sample size
The number n of meters in the sample (ISO).
4.5 100% inspection
Inspection of every meter in a batch.
4.6 Sampling inspection
The inspection of a limited number of meters, taken at random from the batch, according to a prescribed
sampling plan (ISO mod.).
4.7 Sampling plan
A plan according to which one or more samples are taken to obtain information and possibly to reach a
decision (ISO).
* It is intended to take the corresponding definitions of IEC Publication 410 (1973), Sampling Plans and Procedures for Inspection by
Attributes, into consideration in the future.
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SIST EN 60514:1995
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4.8 Characteristic (quality characteristic)
A property (e.g. dielectric strength, starting, accuracy at one test point) of a meter which contributes to the
quality and which helps to differentiate between the meters of a given batch. The differentiation may be either
quantitative (by va
riables) or qualitative (by attributes).
If it is measurable, its value for a given meter i is indicated by x, (ISO mod.).
4.9
Defect
A failure of a meter to meet a standard with respect to a characteristic (ISO mod.).
4.10
Defective meter
A meter having one or more defects (ISO mod.).
4.11
Operating characteristic curve
A curve showing, for a given sampling plan, the probability of acceptance of a batch as a function of its
actual quality for a given characteristic (ISO mod.).
4.12 Inspection by attributes
Inspection whereby certain characteristics of the sample meters are evaluated, classified as conforming or
not conforming to the requirements, the number of defective meters counted and used as the basis for
judgement of the batch (E.O.Q.C.).
4.13 Acceptance number
The maximum permitted number of defects in a sample for inspection by attributes.
4.14 Inspection by variables
Inspection whereby certain characteristics of the sample meters (e.g. a meter error for a particular current)
are measured with respect to a continuous scale (e.g. in per cent), and their mean value, the standard deviation
or the average range calculated and used as the basis for judgement of the batch.
4.15 Sample mean x
The arithmetic mean of values for a characteristic (e.g. a meter error for a particular current) in the
sample:
X,
i 1
=
X =
n
4.16. Range wj
The difference between the maximum and minimum observed values of a given characteristic in a sub-
group: *
wj Xmax — Xmin
for sub-group j.
4.17
Average range )7,7**
The arithmetic mean of the r ranges wj of the r sub-groups in a sample:
r
wj
j= 1
w =
* For the purpose of this report, the size m r sub-groups in a sample.
of a sub-group j is 5 and there are
** This is an estimation of the dispersion of the characteristic x in a batch.
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SIST EN 60514:1995
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4.18 Standard deviation of the sample
1
X)z
s=
(x – n –1 i
1
i=
This is an estimation of the dispersion of the characteristic x in a batch.
4.19 Acceptance trapezium
A graph, with control limits, on which are plotted two corresponding statistical values (i.e. sample mean x
or average range w), for each sample.
and either standard deviation s
4.20 Acceptable quality level (AQL)
For a given characteristic, the maximum percentage of defective meters in a batch that, for the purpose of
sampling inspection, can be considered satisfactory (E.O.Q.C.).
5. Acceptance conditions for batches
A batch is deemed to comply with the requirements . of this report and shall be accepted if for each inspected
characteristic the proportion of defective meters does not exceed the following specified values:
– no meter shall be accepted with a false constant or faulty insulation (for sampling inspection, see Sub-clauses
9.2.1.1 and 9.2.1.4).
Under test conditions in Clause 7:
not more than 1 % of the meters shall complete one revolution of the rotor with a current of
–
0.001Ib;
– not more than 1% of the meters shall fail to complete one revolution of the rotor with a current of
0.006 Ib;
– not more than 1% of the meters shall have errors exceeding the prescribed limits for each test point (Nos. 4
to 9 in Table II).
In the event of sampling inspection, the above conditions shall be considered satisfied* when for each
characteristic of the meters in the batch:
– for inspection by attributes the number of defective meters in the sample is smaller than or equal to the
acceptance number;
– for inspection by variables the graphically presented test result is within the acceptance trapezium or the
calculated test result does not exceed the specified limits.
6. Place of inspection
The inspection shall be carried out by mutual agreement:
– on the manufacturer's premises, but on test benches other than those on which the adjustments were made;
– or on the purchaser's test benches;
– or on other agreed test benches.
7. Test conditions
7.1 Reference conditions
Tests shall be carried out under conditions given in Table I.
* The risk of a wrong interpretation of the results can be read off from the operating characteristic curves of Tables IXa, b and c.
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SIST EN 60514:1995
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TABLE I
Reference conditions
Reference Tolerances on
Influence
quantity value reference value
±
Ambient temperature I) 23 °C 2 °C
± Position 2) Vertical 1 °
±
1.5%
Voltage 3) Reference voltage
±
Reference frequency 0.5%
Frequency
Sinusoidal Distortion factor ; 5%
Voltage and current
waveform
Magnetic induction of Zero Induction not
producing an error
external origin
variation greater
at reference
4) ±
than
frequency 0.3%
1) For any ambient temperature outside the range 21°C to 25°C, but within the range 15°C to 30°C, it is permissible to apply a
correction for the reference temperature of 23° C, using the mean temperature coefficient of the meter type as declared by the
manufacturer.
2)
The construction and assembly of the meter shall be such that the correct vertical posi tion is ensured (in both the "front-to-back" and
"left-to-right" vertical planes) when:
a) the base of the meter is supported against a ve rtical wall, and
a reference edge (such as the lower edge of the terminal block) or a reference line marked on the meter case is horizontal.
b)
3)
In respect to polyphase meters:
tions.
The phase sequence shall be as marked on the diagram of connec
Each phase or line voltage shall not differ from the mean corresponding voltage by more than 1%.
The current in each phase or line respectively shall not differ from the mean current by more than 2%.
The phase displacements of each of these currents with respect to the corresponding line-to-neutral voltage irrespective of the power
factor, shall not differ from one another by more than 3°.
4)
The test consists of:
a) for a single-phase meter, determining the errors at first with the meter normally connected to the mains and then after inverting the
connections to the current circuit as well as to the voltage circuits: The half of the difference between the two errors is the value of
the variation of error. Because of the unknown phase of the external field, the test has to be made at 0.1 I at unity power-factor
b
and 0.2 Ib at 0.5 power-factor;
Ib at unity power-factor, after each of which the connections to the
b) for a three-phase meter, making three measurements, at 0.1
current circuits and to the voltage circuits are changed over 120°, while the phase sequence is not altered. The greatest difference
between each of the errors so determined and their average value is the value of the variation of error.
7.2
Uncertainty of measurement
The measuring instruments and other apparatus used for the tests shall be such that the overall uncertainty
of measurement does not exceed the following values:
±0.4 % at unity power-factor
±0.6% at 0.5 power-factor.
7.3 Cover and seal
The meters shall be tested with their covers on and manufacturer's seal unbroken, except when verifying
certain mechanical characteristics.
8. Inspection and test procedure
The quality of the batch of meters shall be checked by adopting the inspection and test procedure detailed in
this clause.
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SIST EN 60514:1995
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8.1 Preliminary tests and pre-conditioning
The meters to be tested shall be visually examined in order to verify that none shows signs of damage and
that their specified markings are correct.
lb at unity power-factor for at least 30 min to
The meters shall be energized at reference voltage and 0.1
verify that the rotors turn and to pre-condition the meters.
For 100% inspections, any replacements which may be required shall be subject to agreement between
manufacturer and purchaser.
For sampling inspection, it is permissible to replace one meter in a sample of 30 and two meters in a sample
of 40.
All meters which satisfy the foregoing requirements shall be subjected to the tests in the order given below,
unless otherwise agreed upon between manufacturer and purchaser, except for test No. 11, which is always the
last test.
8.2 Test No. 1: dielectric properties
The test voltage of 2 kV (r.m.s.), which shall be substantially sinusoidal and having a frequency between
45 Hz and 65 Hz, shall be applied for 1 min between all terminals interconnected and the case or a flat metal
base on which the meter is placed, when insulated cases are used.
8.3 Test No. 2: running with no-load *
lb and
With the meter energized at reference voltage, at unity power-factor and with a current of 0.001
connected as shown in the diagram of connections, the rotor shall not make a complete revolution.
8.4 Test No. 3: starting *
lb and
With the meter energized at reference voltage, at unity power-factor and with a current of 0.006
connected as shown in the diagram of connections, the rotor shall start and make more than one revolution.
8.5 Tests Nos. 4 to 9: accuracy
The accuracy tests for single-phase and polyphase meters shall be carried out at the current values and
power-factor values given in Table II, without waiting for the thermal equilibrium to be attained.
TABLE II
Test points and limits of errors
Limits
For polyphase,
Power Number of phases whether of
Test Current
errors
No. factor of the meter balanced or
in percent
unbalanced
±
1 Single and 3.5
4 0.05 lb Balanced
polyphase
±
1 Single and Balanced 2.5
5 lb
polyphase
±
6 0.5 Single and Balanced 3.0
lb
polyphase
± 3.5
7 1 Polyphase 1 phase loaded
lb
±
8 1- Polyphase 1 phase loaded 3.5
lb
(different
phase from
test No. 7)
±
1 Single and Balanced 2.5
9 'max
polyphase
* For tests Nos. 2 and 3 for cyclometer type registers, only the most rapidly moving drum shall be engaged.
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SIST EN 60514:1995
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Contrary to IEC Publication 521 displacement of the zero line is not permitted.
8.6 Test No. 10: verification of meter constant
The rotor shall make a whole number of revolutions, such that the fastest moving drum or pointer of the
register may be read with sufficient accuracy to enable the meter constant to be verified with an acceptable
degree of confidence.
8.7 Test No. 11: mechanical inspection
This test shall be made on five meters irrespective of the batch size. The five meters under test shall be taken
at random for 100% inspection or from the sample for sampling inspection (first sample for double sampling).
The covers shall be removed and the meters inspected for:
– meshing of register;
– soldered and welded seams;
–
tightness of screws;
– swarf, filings and metal dust especially in the air-gap(s) of the brake magnet(s);
– any other item which is deemed desirable.
9.
Requirements corresponding to different inspection procedures
The inspection method shall be fixed by mutual agreement between the parties and, with the exception of
test No. 11, all tests shall be carried out either by:
– 100% inspection, or
– sampling inspection.
Test No. 11 is applicable to both 100% inspection and sampling inspection (see Sub-clause 8.7).
9.1 100% inspection
All meters of a batch shall be tested.
9.1.1 Acceptance number c
A meter batch shall be considered as conforming to the requirements of tests Nos. 2 to 9 when for each test
the number of defective meters is not more than c as given in Table III.
TABLE III
Acceptance number c
Batch size N Values of c
1
50 to 149
150 to 249 2
250 to 349 3
449 4
350 to
45 0 to 549 5
550 to 649 6
650 to 749 7
750 to 849 8
9
850 to 949
000 10
950 to 1
9.1.2 Procedure to be adopted with regard to defective meters
If the acceptance conditions are satisfied, the defective meters shall be repaired on the premises where the
inspection is carried out or replaced by meters fulfilling all the conditions required.
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SIST EN 60514:1995
–
21 –
If:
–
the acceptance numbers are exceeded;
–
meter(s) have failed test No. 11;
–
meter(s) have failed tests Nos. 1 and/or 10,
then the results shall be discussed between manufacturer and purchaser and, where required, meter(s) which
have failed tests Nos. 1 and/or 10 shall be opened and examined.
9.2
Sampling inspection
When sampling inspection is used, the purchaser's risk of accepting a poor quality or the manufacturer's risk
of rejecting a good quality shall be taken into account.
This risk for every one of the characteristics can be read from the operating characteristic curves (see Sub-
clause 4.11 and Tables IXa, b and c).
9.2.1 General remarks for sampling inspection
9.2.1.1 Assumptions and selection of the sample
The decision regarding conformity of a batch of N meters to the requirements of this report shall be taken in
accordance with the sampling plans in Table V which are based upon the AQL's and manufacturer's risk
a as
follows:
Depending upon the sample size:
– AQL = 1%,
a= 5% to 10% for tests Nos. 2 to 9;
– AQL = 0.2%*,
a= 3% to 8% for tests Nos. 1 and 10.
The sampling plans are valid for batches from 50 up to and including 1 000 meters. Quantities larger than
1 000 meters shall be subdivided accordingly into batches of 500 up to 1 000 meters.
The inspection shall be carried out on a sample of size n.
The sample shall be chosen to ensure random selection, either by using the serial numbers of the meters in
connection with random numbers (e.g. Table IV) or by any other random selection method which is more
favourable from the economic point of view.
Example of using random numbers according to Table IV
The consecutive set of serial numbers of a batch are from 100 to 300.
A list of three-digit numbers is established by choosing the numbers situated at the intersections of three
columns e.g. columns Nos. 1, 11 and 21 and of the successive lines starting with line No. 6 (the numbers 1, 11,
21 and 6 may be freely chosen):
Random Numbers of
sample meters
numbers
908
795
First sample meter I
295
191 Second sample meter
518
524
428
609
329
152 Third sample meter
etc.
1) The random numbers come within the range of the batch serial numbers.
Duplicated random numbers and those falling outside of the set of serial numbers are disregarded.
* It would be desirable to have an AQL equal to zero, but this is possible only with 100% inspection. An AQL different from zero is
permitted only in order to make sampling inspection possible.
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SIST EN 60514:1995
—22—
TABLEAU IV
TABLE IV
Nombres au hasard
Random numbers
1 5 to Is to 25 30 3S 40 45 60
^
22 17,68 65 84 68 95 23 92 35 87 02 22 57 51 61 09 43 95 06 58 24 82 06 47
19 36 27 59 46 13 79 93 37 55 39 77 32 77 09 85 52 05 30 62 47 83 51 62 74
16 77 2302 77 09 61 87 25 21 28 06 24 25 93 16 71 13 59 78 23 05 47 47 25
78 43 76 71 61 2044 90 32 64 97 67 63 99 61 46 38 03 93 22 69 81 21 99 21
s 03 28 28 26 08 73 37 3204 05 69 30 16 09 05 88 69 58 28 99 35 07 44 75 47
3 22 5 3 64 39 10 63 76 35 03 04 79 88 08 13 13 85 51 55 34 57 72 69
8 76 58 54 74 9^2 38 70 96 92 ^2 06 79 79 45 82 63 18 27 44 69 66 92 19 09
0
23 68 35 26 00 99 53 93 61 28 52 70 05 48 34 56 65 05 61 86 90 92 10 70 80
15 39 25 70 99 93 86 52 77 65 15 33 59 05 28 22 87 26 07 47 86 96 98 29 06
io 5871 96 30 24 18 46 23 34 27 85 13 99 24 44 49 18 09 79 49 74 16 32 23 02
57 35 27 33 72 24 53 63 94 09 41 10 76 47 91 44 04 95 49 66 39 60 04 59 81
48 50 86 54 48 22 06 34 72 52 82 21 15 65 20
33 29 94 71 11 15 91 29 12 93
61 96 48 95
03 07 16 39 33 66 98 56 10 56 79 77 21 30 27 12 90 49 22 23 62
36 93 89 41 26
29 70 83 63 51 99 74 20 52 36 87 09 41 15 09 98 60 16 03 03
is 18 87 00 42
31 579012 02 07 23 47 37 17 31 54 08 01 88 63 39 41 88 92 10
88 56 53-27 59 33 35 72 67 47 77 34 55 45 70 08 12 27 38 90 16 95 86 70 75
09 72 95 84 29 49 41 31 06 70 42 38 0645 18 64 84 73 31 65
52 53 37 97 15
12 96 88 17 31 65 19 59 02 83 60 75 86 90 68 24 64 19 35 51 56 61 87 39 12
85 94 57 24 16 920984 38 76 22 00 27 69 85 29 81 94 78 70 21 94 47 90 12
to 38 64 43 59 98 23 32 65 41 18
98 77 87 68 07 91 51 67 62 44 40 98 05 93 78
53 44 09 42 72 00 41 8679 79 68 47 22 00 20 00 83 63 22 55
35 55 31 51 51
40 76 66 26 84 36 63 32 08 58 87 64
57 99 99 90 37 37 40 13 68 97 81 07 83
02 17 79 18 05 12 59 52 57 02 22 07 90 47 03 28 1411 30 79 20 69 22 40 98
95 17 82 06 53 31 51 10 96 46 92 06 88 07 77 56 11 50 81 69 40 23 72 51 39
ts 35 76 22 42 92 96 11 83 44 80 34 68 35 48 77 33 42 40 90 60 73 96 53 97 86
26 29 13 56 41 85 47 04 66 08 82 43 80 46 15 38 26 61 70 04
34 72 57 59 13
48 67 26 43 18
77 80 20 75 82 72 82 32 99 90 72 82 32 99 90 63 95 73 76 63
46 40 66 44 52 91 36 74 43 53 30 8213 54 00 55 03 36 67 68
78 45 63 98 35
37 56 08 18 09 77 53 84 46 47 31 91 18 95 58 24 16 74 11 53 44 10 13 85 57
30
61 65 61 68 66 37 27 47 39 19 84 83 70 07 48 53 21 40 06 71 95 06 79 88 54
56 27 09 24 86
93 43 69 64 07 34 18 04 52 35 61 85 53 83 45 19 90 70 99 00
21 96 60 12 99 11 20 99 45 18 48 13 93 55 34 18 37 79 49 90 65 97 38 20 46
95 20 47 97 97 27 37 83 28 71 0006 41 41 74 51 67 11 52 49
45 89 09 39 84
97 86 21 78 73 10 65 81 92 59 58 76 17 14 97 0476 62 16 17 17 95 70 45 80
35 69 92 06 34 13 59 71 74 17 32 27 55 10 24 19 63 52 52 01 41
23 71 82 13 74
04 31 17 21 56 60 61 97 22 61
33 73 99 19 87 26 72 39 2767 53 77 57 68 93
61 06 98 03 91 87 14 77 43 96 43 00 65 98 50 45 60 33 01 07 98 99 46 50 47
72 87 08 62 40 16 06 10 89 20 23 21 34 74 97 76 38 03 29 63
85 93 85 86 88
21 74 32 47 45 73 96 07 94 52 09 65 90 77 47 25 76 16 19 33 53 05 70 53 30
40 15 69 53 82 80 79 96 23 53 10 65 39 07 16 29 45 33 02 43 70 02 87 40 41 45
02 89 08 04 49 20 21 14 68 86 87 63 93 95 17 11 29 01 95 80 35 14 97 35 33
87 18 15 89 79 85 43 01 72 73 08 61 74 51 69 89 74 39 82 15 94 51 33 41 67
98 83 71 94 22 08 52 85 08 40 87 80 61 65 31 91 51 80 32 44
59 97 50 99 52
1008 58 21 66 72 68 49 29 31 89 85 84 4606 59 73 19 85 23 65 09 29 75 63
45
47 90 56 10 08 88 02 84 27 83 42 29 72 23 19 66 56 45 65 79 20 71 53 20 25
22 85 61 68 90 49 64 92 85 44 16 40 12 89 88 50 14 49 81 06 01 82 77 45 12
12 83 11 41 16
67 80 43 79 33 25 58 19 68 70 77 02 77 00 52 53 43 37 15 26
27 62 50 96 72 79 44 61 4015 14 53 40 65 39 27 31 58 50 28 11 39 03 34 25
33 78 80 87 15 38 30 06 38 21 14 47 47 07 26 54 96 87 53 32 40 36 40 96 76
32 25 43 62 17 10 97 11 69 84
so 13 13 92 66 99 47 24 49 57 74 99 63 22 32 98
330/75
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SIST EN 60514:1995
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SIST EN 60514:1995
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9.2.1.2
Sampling plans
The sampling plans are given in Table V and explanations are given in Sub-clauses 9.2.2 and 9.2.3.
TABLE V
Sampling plans
Sampling plans for inspection by
Sampling plans for inspection
by attributes variables
Batch sizes
Test Kind Batch sizes
No.
of test
< <
50,N
d i n n
n 2) c i n i c i cl i n, c, n c l n, cz n
1 Dielectric
...
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