Users Guide
Chapter 9 - EMC Directive, Declarations of EC-Conformity 133
EMC DIRECTIVE
The possible Validity Fields of the EMC Directive (89/336) applied to PDS
CE marking
summarises the presumption of compliance with the
Essential Requirements of the EMC Directive, which is formulated in the
EC Declaration of Conformity
Clauses numbers [.] refer to European Commission document Guide to the Application of Directive 89/336/EEC
1997 edition. ISBN 92-828-0762-2
Validity Field
-1-
Finished Product/
Complex component
available to general public
[Clauses: 3.7, 6.2.1, 6.2.3.1 & 6.3.1]
A PDS (or CDM/BDM) of the Unre-
stricted Distribution class
-2-
Finished Product/
Complex component
only for professional assemblers
[Clauses: 3.7, 6.2.1, 6.2.3.2 & 6.3.2]
A PDS (or CDM/BDM)
of the Restricted Distribution class
sold to be included as part of a
system or installation
-3-
Installation
[Clause: 6.5]
Several combined items of system,
finished product or other components
brought together at a given place. May
include PDSs (CDM or BDM), possibly
of different classes -Restricted or
Unrestricted
-4-
System
[Clause: 6.4]
Ready to use finished item(s). May
include PDSs (CDM or BDM), possibly
of different classes
- Restricted or Unrestricted
Description
Placed on the market as a single commercial unit for distribution and final use.
Free movement based on compliance with the EMC Directive
-
EC Declaration of conformity required
-
CE marking required
-
PDS or CDM/BDM should comply with IEC 1800-3/EN 61800-3
The manufacturer of the PDS (or CDM/BDM) is responsible for the EMC behaviour of the PDS
(or CDM/BDM), under specified conditions. EMC measures outside the item are described in
an easy to understand fashion and could actually be implemented by a layman in the field of
EMC.
The EMC responsiblity of the assembler of the final product is to follow the manufacturers
recommendations and guidelines.
Note: The manufacturer of the PDS (or CDM/BDM) is not responsible for the resulting behaviour
of any system or installation which includes the PDS, see Validity Fields 3 or 4.
Not placed on the marked as a single commercial unit for distribution and final use.
Intended only for professional assemblers who have a level of technical competence to correctly
install.
-
No EC Declaration of conformity
-
No CE marking
-
PDS or CDM/BDM should comply with IEC 1800-3/EN 61800-3
The manufacturer of the PDS (or CDM/BDM) is responsible for the provision of installation
guidelines that will assist the manufacturer of the apparatus, system or installation to achieve
compliance.
The resulting EMC behaviour is the responsibility of the manufacturer of the apparatus, system,
or installation, for which its own standards may apply.
Not intended to be placed on the market as a single functional unit (no free movement).
Each system included is subject to the provisions of the EMC Directive.
-
No EC Declaration of conformity
-
No CE marking
-
For the PDSs or CDM/BDMs themselves see Validity Fields 1 or 2
- Responsibility of the manufacturer of the PDS may include commissioning
The resulting EMC behaviour is the responsibility of the manufacturer of the installation in co-
operation with the user (e.g. by following an appropriate EMC plan). Essential protection re-
quirements of EMC Directive apply regarding the neighbourhood of the installation.
Has a direct function for the final user. Placed on the market for distribution as a single func-
tional unit, or as units intended to be easily connected together.
-
EC Declaration of conformity required
-
CE marking required for the system
-
For the PDSs or CDM/BDMs themselves see Validity Fields 1 or 2
The resulting EMC behaviour, under specified conditions is the responsibility of the manufac-
turer of the system by using a modular or system approach as appropriate.
Note: The manufacturer of the system is not responsible for the resulting behaviour of any
installation which includes the PDS, see Validity Field 3.
Relates
to
PDS
or
C
DM
or
B
DM
dir
ectly
Relates
to
application
of
PDS
or
C
DM
or
B
DM
Examples of application in the different Validity Fields:
1
BDM to be used anywhere:
(example in domestic premises, or BDM available from commercial distributors), sold without any knowledge of the purchaser or the
application. The manufacture is responsible that sufficient EMC can be achieved even by any unknown customer or layman (snap-in, switch-on).
2
CDM/BDM or PDS for general purpose:
to be incorporated in a machine or for industrial application This is sold as a subassembly to a professional assembler
who incorporates it in a machine, system or installation. Conditions of use are specified in the manufacturers documentation. Exchange of technical data allows
optimisation of the EMC solution.. (See restricted distribution definition).
3
Installation:
It can consist of different commercial units (PDS, mechanics, process control etc.). The conditions of incorporation for the PDS (CDM or BDM) are
specified at the time of the order, consequently an exchange of technical data between supplier and client is possible. The combination of the various items in the
installation should be considered in order to ensure EMC. Harmonic compensation is an evident example of this, for both technical and economical reasons. (E.g.
rolling mill, paper machine, crane, etc.)
4
System:
Ready to use finished item which includes one or more PDSs (or CDMs/BDMs); e.g. household equipment, air conditioners, standard machine tools,
standard pumping systems, etc.
