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Regulations for Compulsory Certification of Household Electric

By Geraldine Williams,2014-05-17 23:27
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Regulations for Compulsory Certification of Household Electric

    Ref . No. CNCA-01C-011:2001 IMPLEMENTATION RULES FOR COMPULSORY

    CERTIFICATION OF ELECTRICAL AND

    ELECTRONIC PRODUCTS Low-voltage Electrical Apparatus---switch and control

    Equipment

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 for certification ............................................................................ 3

    3.1 Application for certification ......................................................................... 3

    3.2 Type testing ................................................................................................. 3

    3.3 Initial inspection of the factory ..................................................................... 3

    3.4 Evaluation of certification results and approval of certification .................... 4

    3.5 Follow-up inspection ................................................................................... 4

    4. General requirements for certification .................................................................... 4

    4.1 Application 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 ................................................................................... 7

    5. Certificate .............................................................................................................. 9

    5.1 Maintenance of the certificate ...................................................................... 9

    5.2 Extension of the products covered by certificates ......................................... 9

    5.3 Suspension, cancellation and withdrawal of the certificates ........................ 10

    6. Use of compulsory certification mark .................................................................. 10

    6.1 Design of the mark allowed to use ............................................................. 10

    6.2 Derivations of certification mark ................................................................ 10

    6.3 Ways of use ................................................................................................. 11

    6.4 Location of the mark ................................................................................... 11

    7. Charge .................................................................................................................. 11

    Appendix 1 .............................................................................................................. 12

    Appendix 2 .............................................................................................................. 20

    Appendix 3 .............................................................................................................. 23

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    IMPLEMENTATION RULES FOR COMPULSORY

    CERTIFICATION OF ELECTRICIAL AND ELECTRONIC

    PRODUCTS

    Low-voltage Electrical Apparatus---switch and control

    Equipment

1. Scope

    This document applies to low-voltage circuit-breakers, low-voltage switches,

    disconnectors, switch-disconnectors and fuse-combination units, low-voltage

    contactors, motor starters, thermal overload relays, control circuit devices and

    switching elements, such as contactor relays, time delay relays, change-over switches,

    auxiliary contact assembly, and etc.

    2. Certification model

    Type testing + Initial inspection of the factory + Follow-up inspection

3. Major processes for certification

    3.1 Application for certification

    3.2 Type testing

    3.3 Initial inspection of the factory

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    3.4 Evaluation of certification results and approval of certification 3.5 Follow-up inspection

4. General requirements for certification

    4.1 Application for certification

4.1.1 Defining application unit for certification

In principle, the products, of same manufacturer, of same frame degree rated current

    or basic type, shall be in defined in one application unit. Products from different

    manufacturing premises shall be in different application units. Details are as

    following:

    Serial Name of the product Application unit number

    1 Low-voltage circuit-breakers, One application unit for each

    Circuit-breakers for equipment, frame degree rated current

    vacuum circuit-breakers.

    2 Low-voltage switches, disconnectors, One application unit for each

    switch-disconnectors and frame degree rated current

    fuse-combination unit ,

    3 Low-voltage contactors, motor One application unit for each

    starters, thermal overload relays, AC frame degree rated current

    semi-conductor motor controller and

    starter, electro-mechanical contactors

    for household and similar uses,

    vacuum contactors

    4 Control circuit devices and switch One application unit for each

    elements, such as contactor relays, frame degree/each basic model

    time delay relays, change-over

    switches, auxiliary contact assembly,

    and etc.

    5 Control and protective switch devices One application unit for each

    frame degree rated current or the

    controlled power

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4.1.2 Application documents

    The formal application shall be submitted with the following documents:

    1) Product assembly chart, circuit diagram(if applicable);

    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 principle of sample delivery

    Specifications and quantity of samples for type testing are based on the regulations in

    the test rules of the national standard.

    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.

    The quantities of samples shall be according to the requirements of appendix 1

4.2.2 Test standards, items and methods for type testing

4.2.2.1 Test standards

No. National standards

    1 GB14048.2-94 low-voltage circuit-breakers 2 GB14048.3-93 low-voltage switches, disconnectors, switch-disconnectors and

    fuse-combination units

    3 GB14048.4-93 low-voltage electromechanical contactors and motor starters

    4 GB14048.5-93 control circuit devices and switching elements part 2: control

    circuit devices

    5 GB14048.6-1998 Contactors and motor starters part 2 AC semi-conductors,

    motor control devices and starters 6 GB14048.9-1998 Multi-functional electrical devices part 2: control and

    protective electrical devices

    7 GB14048.10-1999 Control circuit devices and switch elements part 2:????

    8 GB17701-1999 circuit-breakers for equipment 9 GB17885-1999 electro-mechanical contactors for household and similar uses

4.2.2.2 Test items

Test items are all the applicable items prescribed in the national standards of the

    product, for reference, see appendix 1.

4.2.2.3 Test methods

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The type testing shall be carried out according to the test methods and/or standards

    prescribed and/or quoted in the safety standards of relevant products.

4.3 Initial inspection of the factory

    4.3.1 Content of the inspection

The content 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 3) and the additional inspection requirements

    stipulated by CNCA.

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 series of products are involved in the certification, at least one

    type/model sample shall be taken from each series for the product consistency check.

    The following major points shall be checked:

1) The nameplates, labels of products to be certified shall be identical with those

    indicated in the type testing reports.

2) The constructions of products to be certified (mainly constructions in terms of

    safety) shall be identical with those of the samples for type testing.

3) The critical components in terms of safety shall be identical with those declared in

    type testing and confirmed by certification body.

The witness tests on site, if necessary, should be carried out to confirm safety

    performance of the products during the factory inspection.

4.3.1.3 All the products to be certified and processing premises shall be covered for

    inspection of factory quality assurance ability and of consistency of the products.

4.3.2 Timing of initial factory inspection

Normally, the initial inspection should be implemented after the sample has passed

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the type testing. The type testing and factory inspection can be implemented at the

    same time if needed.

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 5 man-day for each manufactory.

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

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,

    reports submission after inspection, evaluation of certification results and approval of

    certificates, etc.

Normally, type testing takes 40-50 working days, counting from receiving the samples,

    not including the time for corrective actions and retest of the nonconformities.

The inspection reports should be submitted within 5 working days after the inspection.

    It will be counted from the day when the inspectors complete the inspection and

    receive from the factory the corrective action reports on nonconformities satisfying

    the requirements.

Evaluating certification results and approving the certificates shall normally be

    completed within 5 working days.

4.5 Follow-up inspection

4.5.1 The frequency of follow-up inspection

4.5.1.1 The follow-up inspection shall normally be implemented at least once a year.

    The first follow-up inspection shall normally be implemented 12 months after the

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certificate being granted.

    4.5.1.2 The frequency of inspection should be increased in any of the following cases:

    1) The certified product has serious quality problem, or is complained by clients, which has been verified to be the responsibility of the certificate holder.

    2) The certification body doubts the conformity of the certified product against the requirements of safety standards with sufficient reasons.

    3) Sufficient information indicates that the conformity or the consistency of certified products might be affected due to the changes in organization structure, production condition and the quality system of the manufacturer and/or manufactories.

    4.5.2 Content of the follow-up inspection

    The model of follow-up inspection: re-assessment of factory quality assurance ability + check of consistency of products certified, and if necessary, samples may be taken

    and tested at the testing laboratories (see 4.5.3).

The certification body shall implement the factory re-assessment in accordance with

    Requirements for Factory Quality Assurance Ability. The items 3, 4, 5 and 9 specified

    in Requirements for Factory Quality Assurance Ability (see appendix 3) must be

    assessed for follow-up inspection and the rest items may be selected. All the items of the Requirements shall be covered at least every four years.

The duration for follow-up inspection shall be determined by the amounts of units of

    certified products with appropriate consideration of the production scale of the factory. It will normally take about 1 to 2 man-day.

4.5.3 Sampling & testing

If the certified products need to be sampled and tested, the sample shall be taken

    randomly from the qualified products of the factory (including those from production

    line, stock and market). One sample is needed for the products of the same kind.

The sampling test, which is taken charge by the designated testing bodies, shall be

    completed within 20 working days.

    The test items specified in the standards for type testing can be applied to testing.

    The certification body may carry out part or all of test items based on the degree of effects on the safety performance of the products.

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4.5.4 Evaluation of follow-up inspection results

    The certificates can be retained and the certification marks can be continuously used upon favorable inspection results. If there is any non-conformities found in the follow-up inspection, the corrective actions shall be taken within three months. Otherwise, the certificates will be withdrawn, the certification marks will be stopped using, and the relevant results will be announced.

5. Certificate

    5.1 Maintenance of the certificate

5.1.1 The validity of the certificate

    The certificate of the products covered by this Rules itself doesn’t indicate specific expiry date. The validity of the certificate depends on regular follow-up inspection.

5.1.2 Change of the certified product

5.1.2.1 Applying for change of certified product

    Should any change occur in the specification, type/model, manufactory of the components of the certified products or the design, electric construction involved in safety of the appliances, the application shall be made to the certification body.

5.1.2.2 Evaluation and approval of change

    The certification body shall evaluate the change according to the submitted information and confirm whether it can be approved or samples should be submitted for tests. If test is necessary, the change will be approved upon favorable test result.

5.2 Extension of the products covered by certificates

5.2.1 Procedure for extension

    For extension of the range of products, which are in the same application unit with the certified products, the certificate holder should first make application.

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The certification body shall check the consistency of the extended products against

    the certified products and confirm the applicability of the original certification results

    to the extended products and carry out additional test or inspection based on the

    differences. Either a separate certificate can be issued or the original certificate can be

    updated at the request of the certificate holder.

5.2.2 Requirements of sample

If necessary, the certificate holder shall deliver one sample to the certification body

    for test according to the requirements of Clause 4.2 of this Rules. If the samples need

    to be tested, the testing items to be checked shall be decided by the certification body.

5.3 Suspension, cancellation and withdrawal of the certificates

The suspension, cancellation and withdrawal of the certificates shall follow

    Regulations for Compulsory Product Certification.

    6. Use of compulsory certification mark

    The certificate holder shall follow the Regulations for Compulsory Product Certification Mark

    6.1 Design of the mark allowed to use

    6.2 Derivations of certification mark

The products listed in this Rules shall not be allowed to use any derivation of

    certification mark.

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