Transformer CE
Summary：Transformer CE Test，CE Certification Requirements
CE Certification- Common transformer products：
Classified by cooling method：Dry type (self-cooling) transformer, oil immersed (self-cooling) transformer, fluoride (evaporation cooling) transformer;
Classified by Moistureproof way：Open type transformer, filling type transformer, seal type transformer;
Classified by core or coil structure：Core type transformer (chip core, C type core, ferrite core), shell type transformer (chip core, C type core, ferrite core), ring type transformer, metal foil transformer;
Classified by power phase number：Single-phase transformer, three-phase transformer, multiphase transformer;
Classified by usage：Power transformer, frequency transformer, pulse transformer.
EU Regulation/Directive for Transformer CE：
LVD 2014/35/EU
EMC 2014/30/EU
Transformer CE Standard
EN 61050:1992 Transformers for tubular discharge lamps having a no-load output voltage exceeding 1 kV (generally called neon-transformers) — General and safety requirements
EN 61558-1:2005 Safety of power transformers, power supplies, reactors and similar products — Part 1: General requirements and tests
EN 61558-2-1:2007 Safety of power transformers, power supplies, reactors and similar products — Part 2-1: Particular requirements and tests for separating transformers and power supplies incorporating separating transformers for general applications
EN 61558-2-1:2007 Safety of power transformers, power supplies, reactors and similar products — Part 2-1: Particular requirements and tests for separating transformers and power supplies incorporating separating transformers for general applications
EN 61558-2-3:2010 Safety of transformers, reactors, power supply units and combinations thereof — Part 2-3: Particular requirements and tests for ignition transformers for gas and oil burners
EN 61558-2-4:2009 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V — Part 2-4: Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers
EN 61558-2-5:2010 Safety of transformers, reactors, power supply units and combinations thereof — Part 2-5: Particular requirements and tests for transformer for shavers, power supply units for shavers and shaver supply units
EN 61558-2-6:2009 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V — Part 2-6: Particular requirements and tests for safety isolating transformers and power supply units incorporating safety isolating transformers
EN 61558-2-7:2007 Safety of power transformers, power supplies, reactors and similar products — Part 2-7: Particular requirements and tests for transformers and power supplies for toys
EN 61558-2-8:2010 Safety of transformers, reactors, power supply units and combinations thereof — Part 2-8: Particular requirements and tests for transformers and power supply units for bells and chimes
EN 61558-2-9:2011 Safety of transformers, reactors, power supply units and combinations thereof — Part 2-9: Particular requirements and tests for transformers and power supply units for class III handlamps for tungsten filament lamps
EN 61558-2-12:2011 Safety of transformers, reactors, power supply units and combinations thereof — Part 2-12: Particular requirements and tests for constant voltage transformers and power supply units for constant voltage
EN 61558-2-13:2009 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V — Part 2-13: Particular requirements and tests for auto transformers and power supply units incorporating auto transformers
EN 61558-2-14:2013 Safety of transformers, reactors, power supply units and combination thereof — Part 2-14: Particular requirements and tests for variable transformers and power supply units incorporating variable transformers
EN 61558-2-15:2012 Safety of transformers, reactors, power supply units and combinations thereof — Part 2-15: Particular requirements and tests for isolating transformers for the supply of medical locations
EN 61558-2-16:2009 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V — Part 2-16: Particular requirements and tests for switch mode power supply units and transformers for switch mode power supply units
EN 61558-2-16:2009 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V — Part 2-16: Particular requirements and tests for switch mode power supply units and transformers for switch mode power supply units
EN 61558-2-23:2010 Safety of transformers, reactors, power supply units and combinations thereof — Part 2-23: Particular requirements and tests for transformers and power supply units for construction sites
EN 61558-2-26:2013 Safety of transformers, reactors, power supply units and combinations thereof — Part 2-26: Particular requirements and tests for transformers and power supply units for saving energy and other purposes
Transformer CE Test Item
Marking and other information
Protection against electric shock
Change of input voltage setting
Output voltage and output current under load
No-load output voltage
Short-circuit voltage
Heating
Short circuit and overload protection
Mechanical strength
Protection against harmful ingress of dust, solid objects and moisture
Insulation resistance, dielectric strength and leakage current
Construction
Components
Internal wiring
Supply connection and other external flexible cables or cords
Terminals for external conductors
Provisions for protective earthing
Screws and connections
Creepage distances, clearances and distances through insulation
Resistance to heat, fire and tracking
Resistance to rusting
Transformer CE Process
1. Submit specification manual, drawing etc. to confirm the CE standard
2. Send sample test according to applicable CE standard requirement
3. Submit a full set of CE technical files
4. Notified body review all the reports and documents
5. Issue CE certificate
6. Labeled with CE mark, enter EU market
CE Label- Transformer
1) CE mark is two semicircles, which can be scaled up or down according to the size of the package
2) The minimum size of CE mark shall not be less than 5mm
3) If the instruction does not specify a specific size, the two letters CE mark must have the same vertical height and must not be less than 5mm
4) The CE mark must be clearly and not easily obliterated
>>Shanghai GOM Testing & Technical Co., Ltd.，as an authoritative third-party testing and certification agency，have experienced engineers provide professional technical support, and qualified laboratories provide you with the latest international standard testing >>
Contact us: 021-34122669, 18018853504, info@cegaomeng.com