 well as those conducted along mains, signal, control or other cabling. The immunity requirement covers EM 23.10 EMC legislation and standards fields, spikes, dips, outages, distortions on the mains supply, elec- trostatic discharges, and lightning surges. Up until the formulation of the European Community EMC Direc- Equipment within the scope of the directive can be considered tive, the only countries to incorporate major product electromag- under the following generic classifications: industrial, scientific and netic emission legislation (except for household products, medical; electricity supply and distribution; traction; lamps and fluorescent lights and vehicle ignition, which have been regulated luminaires; household appliances; building services; motor ve- EMC legislation and standards 23/13 hicles; broadcast; entertainment; ITE and telecomms; maritime; and aeronautical. Table 23.5 Emission standards ( - indicates that these standards are aligned) 23.10.1.2 Routes to compliance Product British sector (CISPR) (Germa Without guidance, many manufacturers will not be able to assess whether their equipment is able to satisfy the two essential require- Industrial (BS4809) EN55011 ments, SO the directive looks towards the development of har- scientific & monised European standards on EMC. Any equipment which medical complies with the relevant standards can be self certified as com- Radio & TV BS905-1 EN55013 plying with the essential requirements. However, a manufacturer may choose to undertake his own technical assessment, indeed may have to if there is no relevant EMC standard in existence. In this Household BS800 EN55014 case, he is required to keep a technical file containing details of the appliances test method used, the test results and a supporting statement by an Fluorescent BS5394 EN55015 independent competent body. This file must be at the disposal of the lighting national administration. A further procedure for demonstrating compliance is transitional Information BS6527 EN55022 and will apply for four