On July 2007, the previous Electromagnetic Compatibility (EMC) Directive 89/336/EEC was repealed by Directive 2004/108/EC. The basic principles of the original Directive have not been altered, but there are significant changes.
As the two year transition date has passed, all equipment declarations of conformity require reissuing to declare compliance to the new Directive. In some cases, new EMC Technical Documentation and additional testing will be requirement to meet current EMC Harmonised Standards. Many large infrastructure projects now fall within the scope ofa 'fixed installation'.
Below is an image that demonstrates the EMC Directive Transitional Period (2007-2009)
The new EMC Directive 2004/108/EC defines Apparatus and any finished appliance or combination thereof made commercially available as a single functional unit. For apparatus, there is only one route to compliance: self declaration with internal production control. This requires the manufacturer to:
· Perform an EMC Assessment - If the manufacturer has not applied Harmonised Standards in full, he must perform an EMC assessment on the basis of the relevant phenomena with a view to meeting the essential requirements.
· Produce Technical Documentation - All manufacturers must produce Technical Documentation which provides evidence that the apparatus meets the essential requirements. It must cover the design and manufacture of the apparatus.
· Provide Additional Information - Additional information concerning type, batch, and serial number for identification of the apparatus is also required.
The manufacturer may involve a Notified Body to assess all or part of his Technical Documentation.
Below there is a diagram that illustrates the route to conformance for apparatus.
Mobile Installations are also deemed to be apparatus in the new Directive. A mobile installation is defined as a combination of apparatus and, where applicable, other devices, intended to be moved and operated in a range of locations.
Poor EMC management and control can result in operational problems and in extreme cases can have a direct effect on the safety of.
Many large infrastructure projects will fall within the scope of the EMC Directive 2004/108/EC (enacted in the UK by EMC Regulations 2006 No 3418) as a ‘fixed installation’. There are now formal requirements for fixed installations such as appointing a Responsible Person to hold technical documentation demonstrating the application of good engineering practices in order to meet the essential requirements. The fixed installation requirements apply to new installations taken into service after 20th July 2007 and modifications made to existing installations after this date.
The EMC requirements for a large infrastructure project will typically include:
Preparation of an EMC Assurance File
Preparation of an EMC Management Plan
Preparation of an EMC Control Plan
Preparation of EMC Test Plans and Method Statements
Preparation of installation guidelines
Hazard identification (HAZID)
RF and power quality surveys
Apparatus intended for a given fixed installation and otherwise not commercially available is considered "certain apparatus" under Regulation 34 of the UK EMC regulations SI 3418. This means the apparatus does not need to carry CE marking, but must meet the essential requirements of the EMC Directive.