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1、J IS JAPANESE I NDUSTRIAL STANDARD Translated and Published by Japanese Standards Association (JEMIMA/ JSA) Insulation resistance testers ICs 17.220.20; 29.080.01; 29.240.01 Reference number : JIS C 1302 : 2002 (E) PROTECTED BY COPYRIGHT 22 s Copyright Japanese Standards Association Provided by IHS
2、under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 01:07:09 MDTNo reproduction or networking permitted without license from IHS -,-,- C 1302 : 2002 Foreword This translation has been made based on the original Japanese Industrial Standard revised by
3、 the Minister of Economy, Trade and Industry through deliberations at the Japanese Industrial Standards Committee, as the result of proposal for revision of Japanese Industrial Standard submitted by the Japan Electric Measuring Instruments Manufacturers Association (JEMIMA)/the Japanese Standards As
4、sociation (JSA) with the draft being attached, based on the provision of Article 12 Clause 1 of the Industrial Standardization Law applicable to the case of revision by the provision of Article 14. In this revision, this Standard has been prepared by employing JIS C 1302 : 1994 as the basis and inco
5、rporating IEC 61557-1 : 1997 Electri- cal safety in low voltage distribution systems up to 1 O00 Va.c. and 1 500 V d.c.-Equipment for testing, measuring or monitoring of protec- tive measures-Part 1 : General requirements and IEC 61557-2 : 1997 Elec- trical safety in low voltage distribution systems
6、 up to 1 O00 Va.c. and 1 500 V d.c.-Equipment for testing, measuring or monitoring of protec- tive measures-Part 2 : Insulation resistance for conformity with IEC. Consequently JIS C 1302 : 1994 is replaced with this Standard. Date of Establishment: 1968-04-01 Date of Revision: 2002-07-20 Date of Pu
7、blic Notice in Official Gazette: 2002-07-22 Investigated by: Japanese Industrial Standards Committee Standards Board Technical Committee on Testing and Measurement Technology TIS C 1302 : 2002, First English edition published in 2003-06 Translated and published by: Japanese Standards Association 4-1
8、-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the original JIS is to be the final authority. O JSA 2003 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, elec
9、tronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. Printed in Japan PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03
10、/13/2007 01:07:09 MDTNo reproduction or networking permitted without license from IHS -,-,- C 1302 : 2002 Contents Page 1 1 1 2 2 4 4 4 4 5 5 5 6 6 6 7 7 8 8 8 8 8 9 9 9 Introduction . 1 2 3 3.1 3.2 4 4.1 4.2 5 5.1 5.2 5.3 5.4 5.5 6 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 Scope Normative references Defi
11、nitions items relating with performance items relating with safety and construction . Nominal output voltage and effective maximum indicated value Type of indication Nominal output voltage and effective maximum indicated value Requirements for performances Nominal range of . Tolerance and permissibl
12、e range Operating error Operation Characteristics . Requirements for safety and construction Appearance and construction in general . Safety . Terminals Scale . Protection against ingress of water, solid matter and dust Influence of vibration Influence of shock Accessories Other additional device (i
13、 PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 01:07:09 MDTNo reproduction or networking permitted without license from IHS -,-,- C 1302 : 2002 7 Tests . 7.1 Refere
14、nce conditions . 7.2 7.3 Operation . 7.4 Characteristics . 7.5 Safety and construction Tolerance and permissible range 7.6 Marking and operating instructions 7.7 Record of compliance . 8 Inspection 8.1 Type inspection 8.2 Acceptance inspection . 8.3 Designation of product 9 9.1 Marking and operating
15、 instructions Symbols for unit or quantity . 9.2 Marking on product . 9.3 Marking on package 9.4 Operating instructions Related standards . Annex (informative) Comparison table between JIS and corresponding International Standard . 9 9 9 10 10 12 13 13 13 13 13 14 14 14 14 15 15 15 22 (ii) PROTECTED
16、 BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 01:07:09 MDTNo reproduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD JIS C 1302 : 20
17、02 Insulation resist ance test ers Introduction This Japanese Industrial Standard has been prepared by incorpo- rating IEC 61557-1 Electrical safety in low voltage distribution systems up to 1 O00 Va.c. and 1 500 Vd.c.-Equipment for testing, measuring or monitoring of protective measures-Part 1 : Ge
18、neral requirements and IEC 61557-2 Electrical safety in low voltage distribution systems up to 1 O00 V a.c. and 1 500 V d.c.-Equipment for testing, measuring or monitoring of protective measures-Part 2 : Insulation re- sistance published in-1997 as the first edition, but the technical contents are m
19、odi- fied to meet the demand in this country. The portions shown by sidelines are the matters specified by modifying the con- tents of the original International Standards. 1 Scope This Standard is applicable to portable direct-reading insulation resis- tance testers of pointer type and digital type
20、 with a rated measuring voltage not exceeding 1 O00 V incorporating batteries therein to be used for a) and b) given be- low. a) Low voltage distribution line Insulation measurement of lines and equip- ment in a distribution system not exceeding a.c. 1 O00 V and d.c. 1 500 V where the power supply i
21、s interrupted. b) Insulation measurement of equipment, appliance, components, etc. Remarks : The International Standards corresponding to this Standard are as follows. In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standards and JIS
22、are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/IEC Guide 21. IEC 61557-1 Electrical safety in low voltage distribution systems up to 1 O00 V a.c. and 1 500 V d.c.-Equipment for testing, measuring or monitoring of protective measures-Part 1 : General require- ments (MO
23、D) IEC 61557-2 Electrical safety in low voltage distribution systems up to 1 O00 V a.c. and 1 500 V d.c.-Equipment for testing, measuring or monitoring of protective measures-Part 2 : Insulation resis- tance (MOD) 2 Normative references The following standards contain provisions which, through refer
24、ence in this Standard, constitute provisions of this Standard. Only the edition of indicated year constitutes the provision of this Standard but the revision and amendment made thereafter are not applied. JIS C 0040 : 1999 Environmental testing Part 2 : Tests-Test Fc : Vibration (sinu- soidal) Remar
25、ks : IEC 60068-2-6 : 1995 Environmental testing-Part 2 : Tests-Test Fc : Vibration (sinusoidal) is identical with the said standard. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resa
26、le, 03/13/2007 01:07:09 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 C 1302 : 2002 JIS C 0041 : 1995 Basic environmental testing procedures Part 2 : Tests Test Ea and guidance : Shock Remarks : IEC 60068-2-27 : 1972 Environmental testing-Part 2 : Tests-Test Ea and guid
27、ance : Shock is identical with the said standard. JIS C 0920 : 1993 Tests to prove protection against ingress of water and degrees of protection against ingress of solid objects for electrical equip- ment Remarks ; IEC 60529 : 1989 Degrees of protection provided by enclosures (IP Code) is identical
28、with the said standard. JIS C 1010-1 : 1998 Safety requirements for electrical equipment for measurement, control, and laboratory use-Part 1 : General requirements Remarks : IEC 61010-1 : 1990 Safety requirements for electrical equipment for measurement, control and laboratory use-Part 1 : General r
29、equirements is identical with the said standard. JIS C 1010-2-31 : 1998 Safety requirements for electrical equipment for measure- ment, control, and laboratory use-Part 2-31 : Particular requirements for hand-held probe assemblies for electri- cal measurement and test Remarks : IEC 61010-2-031 : 199
30、3 Part 2-031 :Particular requirements for hand- held probe assemblies for electrical measurement and test is identical with the said standard. JIS C 8306 : 1996 Testing methods for wiring devices 3 Definitions tions apply: For the purpose of this Standard, the following principal defini- 3.1 items r
31、elating with performance 3.1.1 measuring voltage The voltage which appears across measuring terminals. 3.1.2 nominal output voltage This is the indication of rated value for the mea- suring voltage of an insulation resistance tester that is intended to be supplied from the tester. This is also the r
32、ated value of voltage marked on the insulation resis- tance tester. 3.1.3 open circuit voltage nals are opened. The measuring voltage when the measuring termi- 3.1.4 measuring current minals during the measurement. The current which flows through the measuring ter- 3.1.5 nominal current The current
33、at which an insulation resistance tester can supply its nominal output voltage. 3.1.6 short-circuit current The current which flaws through the measuring ter- minals when they are short-circuited. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSAL
34、icensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 01:07:09 MDTNo reproduction or networking permitted without license from IHS -,-,- 3 C 1302 : 2002 3.1.7 effective measuring range The extent in the measuring range through which the intrinsic errors stated in this Standa
35、rd are guaranteed. In poin.ter type testers, the scale range from 111 O00 of the effective maximum indication to a scale of 1, 2, 5 or an integral power of 10 multiples thereof which is close to U.2 of the effective maximum indication is called the first effective measuring range, and the scale rang
36、es over the above range to the effective maximum indication and below the above range to the scale close to zero are called the second effective measuring range (see At- tached Fig. i ) . In digital type testers these ranges are stated in the performance list as “first effective measuring range” and
37、 “second effective measuring range”. 3.1.8 effective maximum indicated value This means the maximum indication of insulation resistance within the range when the accuracy of an insulation resis- tance tester is guaranteed, and it is the value marked on the insulation resistance tes ter. 3.1.9 effect
38、ive medium value An indication of resistance value consisting of 1, 2, 5 or an integral power of 10 multiples thereof which is close to 1/50 of the effec- tive maximum indication and positions almost centre of the logarithmic scale of the first effective range (for pointer type; see Attached Fig. i)
39、. 3.1.10 nominal range of use The range through which an insulation resistance tester guarantees its performances and so on, i.e. the range of influence quantity through which the tester satisfies the value specified for each operating error and variation. 3.1.1 1 intrinsic error The error under ref
40、erence conditions. 3.1.12 operating error The overall error of an insulation resistance tester on its performance characteristic resulted from each influence quantity within the nomi- nal range of use. 3.1.13 fiducial value which is a specified one to define the accuracy. The reference point or refe
41、rence value in the test result Remarks : There is expression of upper limit value, medium value, lower limit value, etc. of measuring range, the value specified in the operating instruction, or the value clearly stated in this Standard for example. 3.1.14 influence quantity The change in each item i
42、n the range of normal use and the quantity which gives change in the performance in the said range. 3.1.15 variation The difference between the indicated values of the same mea- sured quantity when a single influence quantity is changed from the reference con- dition within the nominal range of use.
43、 3.1.16 scale division the numerical values in a pointer type insulation resistance tester. This means the span of principal scale and assignment of 3.1.17 available effective battery voltage Such a range that the performances of an insulation resistance tester is satisfactory by the accommodated ba
44、ttery. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 01:07:09 MDTNo reproduction or networking permitted without license from IHS -,-,- 4 C 1302 : 2002 Nominal outp
45、ut voltage 25 50 (d.c.) V Effective maximum indicated value 5 10 5 10 MC2 I 3.2 items relating with safety and construction 3.2.1 installation category (overvoltage category) C1 100 125 250 500 10 20 10 20 20 50 50 100 1000 ification of install d systems or parts of circuit which have standardized l
46、imit values for the transient overvoltage that depends upon the nominal line voltage to earth. 3.2.2 double insulation An insulation which includes both fundamental insula- tion and supplementary insulation. 3.2.3 reinforced insulation An insulation which provides the protection against electric sho
47、ck at least equivalent to that given by the double insulation. 3.2.4 pollution degree under micro-environment is specified in JIS C 1010-1. For evaluation of clearance, use of the pollution degree 3.2.5 degree of protection The degree of protection by means of enclosure against access to hazardous p
48、lace and ingress of foreign solid matters and/or water. 3.2.6 safety classification Classification of electrical apparatus according to pro- tection against electric shock. 4 Nominal output voltage and effective maximum indicated value 4.1 Type of indication Pointer type and digital type are used as the type of in- dication. 4.2 Nominal output voltage and effective maximum indicated value Rep- resentative examples of nominal output voltage and effective maximum indicated value are shown in Tables 1 and 2. When the nominal output voltage is used each combination of the