007-Y崛?囿wenglish(doc)
File No.: CNCA—01C—007：2001 IMPLEMENTION RULES FOR COMPULSORY CERTIFICATION OF ELECTRICAL AND ELECTRONIC PRODUCTS Switches for Circuit, Installation Protective and Connection Devices Thermal-links Announced on Dec.7, 2001 Implemented on May 1, 2002 Certification and Accreditation Administration of People’s Republic of China CONTENTS 1. SCOPE 3 2. CERTIFICATION MODEL 3 3. MAJOR PROCESSES OF CERTIFICATION 4 3.1 APPLICATION FOR CERTIFICATION 4 3.2 TYPE TESTING 4 3.3 INITIAL INSPECTION OF THE FACTORY 4 3.4 EVALUATION OF CERTIFICATION RESULTS AND APPROVAL OF CERTIFICATION 4 3.5 FOLLOW-UP INSPECTION 4 4. GENERAL REQUIREMENTS FOR CERTIFICATION 4 4.1APPLICATION FOR CERTIFICATION 4 4.2 TYPE TESTING 5 4.3 INITIAL INSPECTION OF THE FACTORY 6 4.4 EVALUATION OF CERTIFICATION RESULTS AND APPROVAL OF CERTIFICATION 7 4.5 FOLLOW-UP INSPECTION 8 5. CERTIFICATE 10 5.1 THE MAINTENANCE OF THE CERTIFICATES 10 5.2 EXTENSION OF CERTIFIED PRODUCTS 10 5.3 THE SUSPENSION, CANCELLATION AND WITHDRAWAL OF THE CERTIFICATES 11 6. USE OF THE MARKS FOR COMPULSORY PRODUCTS CERTIFICATION 11 6.1 DESIGN OF THE MARK ALLOWED TO USE 11 6.2 DERIVATIONS OF CERTIFICATION MARK 11 6.3 WAYS OF USE 11 6.4 LOCATION OF THE MARK 11 7. CHARGE 12 APPENDIX 1 13 APPENDIX 2 14 IMPLEMENTION RULES FOR COMPULSOEY CERTIFICATION OF ELECTRICIAL AND ELECTRONIC PRODUCTS Switches for Circuits, Installation Protective and Connection Devices Thermal-links 1. Scope This document applies to thermal-links, intended for incorporation in electrical appliances, electronic equipment and component parts thereof, normally intended for use indoors, in order to protect them against excessive temperatures under abnormal conditions. This document may be applicable to thermal-links for use under other than indoor conditions, provided that the climatic and other circumstances in the immediate surroundings of such thermal-links are comparable with those in this program. This document may also apply to thermal-links in their simplest forms (e.g. melting strips or wires), provided that molten materials, expelled during function, cannot adversely interfere with the safe use of the equipment, especially in the case of hand-held or portable equipment irrespective of its attitude. This document is applicable to thermal-links with a rated voltage not exceeding 660V a.c. and a rated current not exceeding 63A.This document is applicable to thermal-links primarily intended for use in circuits operating on a.c. with a frequency between 45Hz and 62Hz. 2. Certification model Type testing + Initial inspection of the factory + Follow-up inspection 3. Major processes of certification 1 Application for certification 2 Type testing 3 Initial inspection of the factory 4 Evaluation of certification results and approval of certification 5 Follow-up inspection 4. General requirements for certification 1 Application for certification 4.1.1 Defining application unit for certification In principle, application unit is defined on the basis of the same kind, constructions and materials. In one application unit, the samples with the highest functioning temperature (Tf), middle Tf and the lowest Tf should be chosen for type testing and cover other samples in the whole range, from the lowest to the highest temperature. In principle, the product of same model/type and same manufacturer but with different factories shall be defined into different application unit. 4.1.2 Application documents The formal application shall be submitted with the following documents: 1) Product assembly chart, circuit diagram; 2) List of critical components and/or materials 3) Description of the difference between the different model/type of products in the same application unit. 4) Other necessary documents. 4.2 Type testing 4.2.1 Sample delivery for type testing 4.2.1.1 The principles of sample delivery for type testing In one application unit, the samples with the highest Tf, middle Tf and the lowest Tf should be chosen to test and cover other samples in the whole range, from the lowest to the highest temperature. 4.2.1.2 Samples quantity/amount requirements The applicants shall take responsibility of sample delivery for type testing in accordance with the requirements of the certification body and be responsible for them. Quantities of samples required: 1) Models with different current, voltage, functioning temperature (Tf): 60 pieces for each specification 2) In one application unit : 60 pieces for samples with the highest Tf; 60 pieces for samples with the middle Tf; 60 pieces for samples with the lowest Tf 3) Enclosure and sealing materials: 5 pieces for each material (not less than 15mm(15mm (3mm) 4.2.1.3 Handle of samples and relating documents after type testing The samples tested and/ or the relating documents should be handled in appropriate ways after type testing. 4.2.2 Test standards, items and methods for type testing 4.2.2.1 Test standards GB9816-98 “Thermal-links – Requirements and application guide” 4.2.2.2 Test item The type testing shall be carried out according to total items and methods specified in the standards. 4.2.2.3 Test methods The type testing shall be carried out according to the methods specified and / or referred in the standards and /or the standards. 4.3 Initial inspection of the factory 4.3.1 Contents of the inspection The contents of factory inspection shall include the factory quality assurance ability assessment and the products consistency check. 4.3.1.1 Assessment of factory quality assurance ability The inspector assigned by the certification body shall carry out the factory quality assurance capability assessment according to the Requirements for Factory Quality Assurance Ability (see appendix 2) and the additional inspection requirements stipulated by CNCA. In addition, the inspection shall cover the requirements of Testing Requirements for Factory Quality Control of Thermal-links (see Appendix 1). 4.3.1.2 Check of consistency of the product The consistency of the product applying for certification shall be checked on the site of production. If more than one application unit are involved in the certification, at least one type/model sample shall be taken from each unit for the product consistency check. The following major points shall be checked: 1) The name of product, type/model and specification on the nameplates and package of products to be certified shall be identical with those indicated in the type testing reports. 2) The construction of products to be certified shall be identical with those of the samples for type testing. 3) The critical components and materials shall be identical with those declared in type testing and confirmed by certification body. The witness tests, if necessary, should be carried out to confirm the performance of safety of the products during the inspection. 4.3.1.3 Inspection Scope All the products to be certified and processing promises shall be covered for inspection of factory quality assurance ability and of consistency of the products. 4.3.2 Timing of factory inspection Normally, the initial inspection should be implemented after the sample has passed the type testing. The type testing and factory inspection can be implemented at the same time in special cases. The duration of factory inspection shall be determined by the amounts of application units of products to be certified and with the consideration of the scale of the factory. It will normally take about 1 to 4 man-day for each processing premises. 4.4 Evaluation of certification results and approval of certification 4.4.1 Evaluation of certification results and approval of certification The certification body shall be responsible for a general evaluation of the results of type testing and factory inspection and for issuing the certificates to the applicants for the conformed products. One certificate shall be issued for one application unit. The application of the certificates shall comply with the requirements for Regulations for Compulsory Product Certification. 4.4.2 Time frame The time frame for certification means the working days from the acceptance of complete application till the issuance of the certificates, which includes the time of type testing, factory inspection, reports submission after inspection, evaluation of certification results and approval of certificates, etc. Normally, type testing takes 65 working days, not including the time for corrective actions and retest of the non-conformity item(s). The inspection reports should be submitted within 5 working days after inspection. It will be counted from the day when the inspectors complete the inspection on site and receive from the factory the corrective action reports on non-conformities satisfying the requirements. Evaluating certification results and approving the certificates shall normally be within 5 working days. 4.5 Follow-up inspection 4.5.1 The frequency of follow-up inspection The follow-up inspection shall be implemented for once per year. The first follow-up inspection shall normally be implemented 12 months after the certificates being granted. The frequency of surveillance should be increased in any of the following cases: 1) The quality of the certified product has seriously problems, or received by clients and checking concludes that the holder of the certificate shall be responsible for it. 2) The certification body doubts the conformity of the certified product against the requirements for standards of safety with sufficient reasons. 3) Sufficient information indicates that the conformity or the consistency of certified products woul...
007-Y崛?囿wenglish(doc)