Low Voltage Directive
The 73/23/EEC Directive was adopted by the then European Commission on February 19, 1973 as a help Harmonizes the legal relations between Member States regarding electrical equipment designed within specific voltage ranges.
In 1993, this directive was modified into the 93/68/EEC directive, which is also called the "CE Mark Directive" and has a relatively independent conformity mark and various review procedures. (The CE mark was subsequently extended to other directives). The purpose of the modification is to unify the provisions regarding conformity assessment and CE marking of electrical equipment. For this reason, this instruction is also called a new method instruction.
The "Low Voltage" Directive is a "guiding" coordination directive. In a sense it replaces existing national regulations in this area. Electrical equipment can only be placed on the market if it complies with the requirements of the directive. On the other hand, EU member states must not impede the free circulation of electrical equipment that already meets the requirements.
Scope of application:
The Low Voltage Directive applies to all electrical equipment used within the range of AC 50V to 1000V and DC 75V to 1500V. This voltage range refers to the input or output voltage of the device and does not refer to voltages that may occur within the device. The following products are not subject to the Low Voltage Directive:
a) Electrical equipment used in explosive environments;
b) Electrical products, goods and materials used for radiological and medical purposes Electrical parts for personnel lifts;
c) Electricity meters;
d) Household plugs and sockets;
e) Grid controllers;
f) Radio-electrical interference;
g) The use of special electrical equipment on ships, aircraft or railways that comply with safety regulations established by international organizations in which member states participate.
Basic requirements of the Low Voltage Directive
1. General provisions
(a) Ensure that the electrical product will be used safely within its designed purpose The basic characteristics, identification and precautions that should be observed must be marked on the equipment, or when it is impossible to mark on the equipment, they shall be marked on the instructions accompanying the product;
(b) The manufacturer's name, brand name or trade mark is clearly printed on the electrical equipment, or when it is impossible to be printed on the equipment, it is printed on the packaging;
(c) Electrical equipment and its components shall be manufactured to ensure that they can be safely and properly assembled and connected;
(d) Electrical equipment shall be designed and manufactured so that, when used according to its designed purpose and properly maintained, it must Ensure compliance with the requirements for protection against the hazards mentioned in points 2 and 3 of this appendix.
2. Protection requirements against the dangers of electrical equipment itself
Technical disposal methods should be marked in accordance with point 1 to ensure:
(a ) Persons and livestock are properly protected from the risk of physical or other injury caused by direct or indirect electrical contact;
(b) Temperatures, arcs or radiation that may cause danger are not generated;
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(c) Persons, livestock and property are appropriately protected against non-electrical hazards experienced by the electrical equipment.
(d) Insulation must be suitable for all foreseeable situations.
3. Protection requirements against hazards arising from electrical equipment affected by external factors
Technical disposal methods should be in accordance with point 1 to ensure:
(a) The electrical product meets the expected mechanical requirements to protect people, livestock and property from danger;
(b) The electrical product can resist non-mechanical influencing factors under expected environmental conditions, so that People, livestock and property are protected from danger;
(c) The electrical product will not endanger the safety of people, livestock and property under foreseeable overload conditions.
CE conformity mark and EC declaration of conformity
1. CE conformity mark
The CE conformity mark should consist of the acronym "CE" as shown below Style composition:
——If you need to reduce or enlarge the CE mark, the proportions given in the scale chart above should be followed;
——The letters of each component unit of the CE mark , must have substantially the same height and shall not be less than 5mm;
2. EC Declaration of Conformity
The "EC Declaration of Conformity" must contain the following elements:
——The name and address of the manufacturer or his authorized representative within the European Union;
——A description of the electrical equipment;
——The reference The number of the harmonized standard;
—if appropriate, the number of the specification to which the declaration of conformity refers;
—authorized by the manufacturer or an authorized representative located within the European Commission Qualifications (name and title) of the signatory in whose name the declaration is signed.
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