This European Standard specifies the immunity performance criteria and test levels for apparatus used in lifts, escalators and moving walks which are intended to be permanently installed in buildings including the basic safety requirements in regard to their EMC environment. These levels represent essential EMC requirements. The standard refers to normal EMC conditions as existing in residential, office and industrial buildings, but does not cover more severe EMC environments such as: - radio transmitter stations; - railways and metros; - heavy industrial plant; - electricity power stations which need additional investigations. This standard addresses commonly known EMC related hazards and hazardous situations relevant to lifts, escalators and moving walks when they are used as intended and under the conditions foreseen by the lift installer or escalator and/or moving walk manufacturer. This standard addresses the environmental conditions stated in the EN 81 series of standards and EN 115 (humidity, temperature, etc.), so far as they are related to EMC performance. However: - performance criteria and test levels for apparatus/assembly of apparatus used in general function circuits do not cover situations with an extremely low probability of occurrence; - this standard does not apply to other apparatus already proven to be in conformity to the EMC Directive, and not related to the safety of the lift, escalator or moving walk, such as lighting apparatus, communication apparatus, etc. This standard is not applicable to lifts, escalators, moving walks and related safety components manufactured before the date of publication of this standard by CEN.