Household and similar electrical appliances - Safety - Part 2-99: Particular requirements for commercial electric hoods (Edition 1.1; Consolidated Reprint)
This clause of Part 1 is replaced by the following. The following extraction systems are covered as well: back draft ventilation systems; downdraft ventilation systems; fume extraction modules. This International Standard deals with the safety of electrically operated commercial hoods intended for installation above commercial cooking appliances such as ranges@ griddles@ griddle grills and deep fat fryers@ and not intended for household and similar use@ their rated voltage being not more than 250 V for single phase hoods connected between one phase and neutral@ and 480 V for other hoods. Only single complete units and hoods supplied as separate parts which when assembled form a complete working hood@ incorporating a fan@ are within the scope of the standard. NOTE 101 Hoods are used@ for example in kitchens of restaurants@ canteens@ hospitals and in commercial enterprises such as bakeries@ butcheries@ etc. The hood may be used above one or more appliance of the same or different types. So far as is practicable@ this standard deals with the common hazards presented by these types of appliances. NOTE 102 Attention is drawn to the fact that: for hoods intended to be used in vehicles or on board ships or aircraft@ additional requirements may be necessary; in many countries additional requirements including ventilation requirements are specified by the national health authorities@ the national authorities responsible for the protection of labour and similar authorities; for hoods incorporating a filter system with means for ionizing the air@ IEC 60335-2-65 also applies. NOTE 103 This standard does not apply to: domestic range hoods (IEC 60335-2-31); purpose-built hoods@ although this standard can be used as a guide (a purpose-built hood is either constructed on-site or specially constructed in the factory and is not mass produced); hoods not incorporating a fan; hoods designed exclusively for industrial purposes; hoods intended to be used in locations where special conditions prevail@ such as the presence of a corrosive or explosive atmosphere (dust@ vapour or gas). NOTE 104 Requirements for hoods with externally mounted fans are under consideration.