The CB Scheme for electrical appliances: single test
with multiple benefits
Other countries - other safety standards -
other test marks ... and nevertheless, only one testing procedure:
The CB
Scheme (CB = Certification Body) makes it possible.
It is based on the
principle of mutual recognition of test results through the participating
National Certification Bodies. In the meantime, certification bodies in over 30
countries - including the leading industrial nations - have joined the CB
Scheme.
As a manufacturer of electrical appliances, this procedure offers
you decisive advantages:
A single testing and certification process is
sufficient to obtain national test marks for many countries worldwide. Multiple
testing is no longer necessary. The required national test marks are granted
quickly and smoothly on the basis of the CB certificate.
In brief: the CB Scheme minimizes your time and cost expenditure for
testing and certification of your products. It provides quick market access
worldwide and thus secures you competitive and sales advantages.
TÜV
Rheinland Product Safety GmbH has been integrated in the
CB Scheme as a
National Certification Body for many years. We are pleased to provide you with
comprehensive information on all aspects of this complex theme.
 Overview
Details
What do you have to do?
Product groups
The CB Scheme - a test procedure for the whole
world
TÜV Rheinland Product Safety GmbH offers worldwide service to
manufacturers and exporters in the electrical goods industry. In 1994, we were
accepted as a member of the international CB scheme group. As such, we are
authorized to issue CB test reports and certificates for you as well as to
pronounce certification on the basis of CB test reports by another testing body
recognized as a member in the CB scheme. This means that the test results are
recognized in all 38 countries participating in the CB scheme, without having
the customer go through the same procedures again and again.
The CB scheme is a rather complicated business for those who are not versed
in the world of international technical standardization and raises a lot of
questions. For this reason, in this brochure we have compiled a list of the
questions and answers which prevail most often for customers. We certainly
cannot claim completeness. Therefore, should any of your questions remain
unanswered, please do not hesitate to contact us.
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The CB Scheme - a test procedure for the whole
world
What is intended by the CB scheme?
The objectives of the CB
scheme are:
- Recognition of test results in a wide range of different countries
- Simplification of the procedure for acquiring a national test mark without
having to undergo several tests in accordance with the same IEC standard
- Reduction of international trade barriers.
What does the CB scheme
achieve?
It is the only international scheme for mutual, world-wide
recognition of test results among the members applying the CB scheme in order to
acquire a national test mark. The scheme is based on a CB certificate and a CB
test report showing that the equipment submitted has successfully passed the
test in accordance with the applicable IEC standard.
What is a CB certificate?
A CB certificate issued by a member of the CB
scheme group serves as proof to other members in the system that a test sample
of the product concerned has been tested and complies with the IEC standard
applied. The CB certificate is valid only in conjunction with the relevant CB
test report. A CB certificate is not intended to be used for product advertising
purposes, but may however be publicized as part of public relations work, for
example in a trade journal.
What is a CB test report?
The CB test report is a standardized test report
consisting of a reference check list. In this procedure, the technical standard
applied is worked through point by point. It makes a clear and unequivocal
statement on the test result, similar to a statement of conformity of the
product. In general one or more photographs of the product are included to show
clearly how the device is constructed or how particularly critical features of
the device are designed with respect to equipment safety.
Are the test results recognized everywhere?
That is exactly the point of
the CB scheme. When testing of a device has been completed and the device found
to comply with the technical standard applied and with any national deviations
which may be required, the national certification body commissioned will issue
the CB documents, i.e. CB certificate and CB test report. The manufacturer can
then submit these documents and, if required, a test sample to any other member
institute participating in the CB scheme in a different country in order to
acquire a corresponding national test mark. The other institute carries out a
visual check on the test specimen to verify that it is the same as the one
tested. If this is the case, no additional tests are necessary.
Who is responsible for and supervises the CB scheme?
The scheme is
administered by the IECEE Certification Management Committee (CMC). The CMC, on
the other hand, operates under the supervision of a council of the International
Electro technical Commission.
What is the scope of the CB scheme?
The CB scheme is applied to electrical
and electronic devices, for which an IEC (International Electro technical
Commission) standard exists, which is accepted by the IECEE system, and to which
a minimum of at least 3 members of the CB scheme group adhere.
Which rules and procedures are used in CB procedure testing?
The rules
and procedures used in this, for which IEC standards form the common standards
base, are laid down in two publications entitled:
- Publication IECEE 01: Basic Rules of the System
- Publication IECEE 02: Rules of Procedure of the Scheme of the IECEE for
Mutual Recognition of Test Certificates for Electrical Equipment (CB Scheme)
- Publication IECEE03: Rules of Procedures of the Scheme of the IECEE for
Mutual Recognition of Confirmity Assessment Certificates according to Standards
for Safety of Electrical Equipment (CB-FCS)
Which certification bodies
may become members of the CB scheme?
The certification body must be a member
of the IECEE System and be recognized as a National Certification Body (NCB).
There may be several NCBs within one and the same country. The national
standards for which an NCB has received authorization must, to a large extent,
conform with the relevant IEC standards. The national certification body must
provide individual proof of its competence to test and certify for every IEC
standard, for which it wishes to apply the CB scheme. Mutual recognition of the
CB documents is restricted to these standards. To become accepted as an NCB for
the CB scheme, the national certification body must undergo extensive audits. In
these audits, the quality management system, the test laboratory, and the
personnel are scrutinized.
Are there different types of national certification bodies?
Yes, a NCB
can qualify as a "Recognizing NCB" or as an "Issuing and Recognizing NCB": A
"Recognizing NCB" is a certification body which accepts the CB documents of
another member in the CB scheme as the basis for national certification. This
may apply to one or more product groups, depending on which IEC standards the
certification body is authorized to use the CB scheme for. An "Issuing and
Recognizing NCB" is a certification body such as, e.g. TÜV Rheinland Product
Safety GmbH, which is authorized both to recognize CB documents and to issue CB
test reports and CB certificates. This applies to IEC standards which have been
accepted for the CB scheme.
Which responsibilities does a national certification body have?
The
function and responsibility of an NCB depends on the status of its accreditation
in the CB scheme and on the particular situation in the respective country. An
NCB may perform the following activities:
- Testing of a product in accordance with IEC standards in the owned
accredited test laboratory (CBTL)
- Assessment of production factories
- Checking of national deviations for those countries to which the product is
to be exported
- Issuing of CB certificates
- Issuing of CB test reports
- Recognition of CB test reports
- Issuing of certificates for the use of own test marks.
Are there
country-specific differences between national certification bodies? Yes, in some
countries there is, for example, no compulsory testing of "Consumer Products".
In other countries, testing of such products in a recognized test laboratory is
compulsory. Furthermore, some individual NCBs demand an initial production plant
inspection prior to certification. (Production plant inspections are compulsory
in some countries.) What are national deviations?
The IEC standards are not automatically and unreservedly accepted by every
country. To acquire a national test mark, the device to be tested has to comply
with the national standard. In Europe, these are the EN standards and HD
documents. This may make tests in addition to the IEC standard necessary. Can a
national certification body participating in the CB scheme also test national
deviations of other countries?
Yes, an NCB participating in the CB scheme can carry out and confirm these
tests, provided that the required measuring instruments are available. The test
results are then entered in the CB test report as an addendum and are accepted
by other NCBs. The national deviations of all the countries participating in the
CB scheme must of course be made known to the other members in the CB scheme.
These are publicized regularly in the CB Bulletin. Which countries take part in
the CB scheme?
Certification - and testing bodies from 38 countries, among them the world's
most important industrial nations, are members of the CB scheme: Australia,
Austria, Belgium, Canada, China, the Czech Republic, Denmark, United Kingdom,
Finland, France, Germany, Greece, Hungary, Iceland, India, Ireland, Israel,
Italy, Japan, Korea, Netherlands, Norway, Poland, Russia, Singapore, Spain,
Sweden, Switzerland, USA, Yugoslavia
What is a CB Bulletin?
A CB Bulletin is a publication published by the CB
secretariat approx. 2 to 3 times a year. Basically, this publication contains
the following:
- The IEC standards which are accepted for the CB scheme
- Statistics on how many certificates have been awarded
- National deviations from IEC standards
- Information about the national certification bodies participating in the CB
scheme
- A list of the products certified under the CB scheme
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What do you have to pay particular attention
to?
The procedure for acquiring the CB documents and therefore
national test marks of other countries can be described as follows:
- An application for the award of a CB certificate must be made to the
"Issuing and Recognizing NCB" which has been authorized to apply the CB scheme
for the standard in question.
- The manufacturer/exporter or an authorized representative of the
manufacturer/exporter may file the application.
- The applicant must list all production plants, including those located
abroad.
- An applicant may turn to a foreign NCB of his choice, in particular when in
his own country there is no NCB for the standard in question, provided the
foreign NCB has a suitable CB test laboratory and has been authorized in the CB
scheme for this standard
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The CB Scheme - a test procedure for the whole
world
The TÜV Rheinland has been authorized as an Issuing and
Recognizing NCB for the following equipment groups:
- Electrical appliances for household and similar uses
- Luminaries
- Electro medical equipment and devices
- Information technology equipment including electrical office machinery
- Electrical measuring instruments and controllers
- Hand-held electrical tools
- Equipment for arc welding
- Mains-operated electronic devices and their accessories for household use
- Safety isolating transformers
- Entertainment electronics
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