If of the apparatus allowing traceability; it

If the manufacturer has verified compliance
with all requirements, the manufacturer must complete a declaration of conformity
for the device and affix the CE marking. The manufacturer must keep the
technical documentation and the declaration of conformity for 10 years after
placing it on the market.If the unit is in serial production,
conformity must always be guaranteed. This means in case of changes in the
design of the device or in the harmonized standard over years, the
justification of conformity must be taken into account to reassure the conformity. The EU declaration for the conformity is
given below and should be accessed with following materials and documentation.1.     
Apparatus model (product, type,
batch or serial number): 2.     
Name and address of the
manufacturer or his authorised representative3.     
This declaration of conformity
is issued under the sole responsibility of the manufacturer. 4.     
Object of the declaration
(identification of the apparatus allowing traceability; it may include a colour
image of sufficient clarity where necessary for the identification of the apparatus).5.     
The object of the declaration
described above is in conformity with the relevant Union harmonisation
legislation (Directive): applicable directives.6.     
References to the relevant
harmonised standards used or references to the other technical specifications
in relation to which conformity is declared. References must be listed with
their identification number and version and, where applicable, date of issue.7.     
Where applicable, the notified
body … (name, number) … performed … (description of intervention) … and issued
the EU-type examination certificate: … 8.     
Where applicable, description
of accessories and components, including software, which allow the radio
equipment to operate as intended and covered by the EU declaration of
Additional information: Signed
for and on behalf of: … (place and date of issue): (name, function) (signature)
20, p.102 These following obligations of the
manufacturers apply to all the directives.In order to identify the devices all the
products must be affixed with a batch or serial number.The device must also contain operating
instructions and assembly, installation, operating or maintenance instructions
and information on the intended use and appropriate information on a restricted
use area. The manufacturer shall indicate his name, registered trade name or
registered trade mark and his postal address on the device or in the documents
referred to above when the product is sold. A requirement for all documents
delivered with the equipment is that it is written in a language easily
understandable by consumers and other end-users.  For a reason to believe that a device
placed on the market does not comply with the directives, the manufacturer
shall promptly initiate the necessary corrective measures leading to
compliance. If the device is associated with risks, the manufacturer must
inform competent national authorities. The manufacturer shall, at the request
of national authorities, provide all the documents and information necessary to
demonstrate the conformity. 20, p. 861.1      
Directives EU legislation in the EEI (Electrical
and Electronic Engineering Industries) sector is important to make
sure that the European-wide harmonisation of essential health and safety and
other public interest requirements for products placed on the market. A
directive is a document related to range of product used in a certain
industrial sector. The directive provides information relating to the
regulations under which it falls, Obligation to the economic operators such as
manufacturers, distributers and importers. The directives define a scope under
which the product may or may not fall. It also explains the process of
obtaining EU conformity to the product.There are two main European Directives that
can be applied to the product in the field of electrical and electronic
equipment is:1.     
The Low Voltage
(LVD) Directive 2014/35/EU.2.     
The Electromagnetic
Compatibility (EMC) Directive 2014/30/EU.In regard to the radio equipment
products which fall under the category of the Electrical and Electronic
equipment a Radio Equipment directive is available which comprises the product
which deals with the reception and transmission of radio waves. This directive provides
clear requirements for radio receivers. The aim is to use the radio spectrum
efficiently and achieve a minimum level of performance with clear obligations
for manufacturers       Electromagnetic compatibility DirectiveMost of the electric devices influence each
other while connected or placed close to it due to the electromagnetic
interference caused by them. The main purpose electromagnetic compatibility is
to suppress the side effects caused due to inference and making sure the
product works as intended in such environment. This directive ensures that the
product does not generate or not being influenced by such interferences. The
general requirement limits for electromagnetic compatibility are laid down in
the EMC Directive 2014/30 / EU 26.This guideline is intended for all
equipment which is covered by a ready-to-use device or a fixed-location system,
which may cause electromagnetic interference and is not intended for radio
equipment or telecommunications terminal equipment or for aviation 20, p. 79.The general requirements of the Directive
state that an equipment should be designed and manufactured according to the
latest state of the art. It must not cause any electromagnetic interference in
which proper operation of radio and telecommunication equipment or other
equipment is not possible. It is intended to be sufficiently insensitive to
electromagnetic phenomena which are to be expected in the case of the intended
operation, in order to be able to operate without any unacceptable impairment
20, p. 97.The following standards specify measures
for compliance with the directive and limit values ??for electromagnetic
interference that is to be expected and for disturbance levels, which are still
guaranteed by other means of operation.·        
EN 61000-6-2
– sub-standards: 61000-4-2 – 4-6 & 4-11·        
EN 61000-6-3 – sub-standards:
EN 55022·        
EN 61000-3-2·        
EN 61000-3-3The low voltage directive on
electromagnetic fields is the 2013/35 / EU Electromagnetic Fields Directive.
The harmonized standards for this Directive (EN 50371, EN 62311) provide much
higher limits which are fully covered by the above-mentioned standards for the
EMC Directive 2014/30 / EU.1.1.2       Low voltage DirectiveThe Low Voltage
Directive (LVD) 2014/35/EU ensures that the category of electrical
equipment which is under certain voltage limits should provide a high level of
protection for citizens of the EEA Market and fully benefits the Single Market.
Electrical equipment under this directive covers a wide range of products ranging
from consumer products to professional industrial products such as most of the household
appliances, power supply units, Control Units, Encoding Units, Transmission
Units and also fuses 25.The general requirements for the low
voltage are laid down in the low voltage directive 2014/35 / EU.The Directive applies to all electrical
equipment operating at nominal voltages between 50 V and 1000 V at alternating
current and between 75 V and 1500 V at direct current. 21, p. 360 Excluded
are devices for use in explosive atmospheres, medical areas, shipping,
airplanes or railways and other areas with special requirements but the ACU
does not fall under any of the excluded areas 21, p. 369 .The general requirements of the Directive
state that essential characteristics for a safe use of the equipment or the
accompanying documents must be stated, that the equipment should be such that
it can be securely connected and protected from the following dangers when used
as intended.The equipment must provide protection
against the following hazards:·        
Injuries to humans or animals
which could be caused by direct or indirect handling of the equipment·        
Temperatures, arcs or
radiations, from which there is a risk·        
Non-electrical hazards which
may result from the equipment·        
Insufficient insulationTechnical measures must be taken at all
hazards.Furthermore, the equipment must protect
humans, animals and goods from risks which can be caused by external
influences. Among the external effects the following stresses occur:·        
Expected mechanical stress·        
Provided non-mechanical
environmental conditions·        
Predictable overloading 21, p.

The standard EN 62368-1 provides protective
devices for compliance with the directive and limit values ??for the loads to
be expected.

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