BS EN 60335-2-61:2003+A2:2008 Household and similar electrical appliances. Safety. Particular requirements for thermal-storage room heaters
BS EN 60335-2-61 deals with the safety of electric thermal-storage room heaters for household and similar purposes that are intended to heat the room in which they are located, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances.
Appliances not intended for normal household use but which nevertheless may be a source of danger to the public, such as appliances intended to be used by laymen in shops, in light industry and on farms, are within the scope of BS EN 60335-2-61.
As far as is practicle, BS EN 60335-2-61 deals with the common hazards presented by appliances that are encountered by all persons in and around the home. However, in general, it does not take into account:
Persons (including children) whose physical, sensory or mental capabilities, or lack of experience and knowledge prevents them from using the appliance safely without supervision or instruction
Children playing with the appliance.
BS EN 60335-2-61 only applies to self-contained thermal-storage room heaters. However, it may be used as a guide, in so far as it reasonably applies, to determine the requirements and test specifications for other thermal-storage room heaters:
– for heaters incorporating direct-acting heating elements, IEC 60335-2-30 is also applicable;
– for heaters intended to be used in vehicles or on board ships or aircraft, additional requirements may be necessary;
– in many countries additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labour and similar authorities.
BS EN 60335-2-61 does not apply to:
– appliances intended exclusively for industrial purposes;
– heaters incorporated in the building structure;
– central heating systems;
– heaters for saunas (IEC 60335-2-53);
– flexible sheet heating elements for room heating (IEC 60335-2-96);
– heaters intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas).
Contents of BS EN 60335-2-61:
- Introduction
- Scope
- Normative references
- Definitions
- General requirement
- Classification
- Marking and instructions
- General conditions for the tests
- Protection against access to live parts
- Starting of motor-operated appliances
- Void
- Leakage current and electric strength at operating temperature
- Overload protection of transformers and associated circuits
- Leakage current and electric strength
- Moisture resistance
- Transient overvoltages
- Endurance
- Abnormal operation
- Temperature rises of surfaces
- Device for determining the air temperature rise
- Bibliography
- Radiation, toxicity and similar hazards
- Resistance to rusting
- Resistance to heat and fire
- Clearances, creepage distances and solid insulation
- Supply connection and external flexible cords
- Terminals for external conductors
- Provision for earthing
- Screws and connections
- Power input and current
- Heating
- Stability and mechanical hazards
- Mechanical strength
- Construction
- Internal wiring
- Components
