SIS SS 433 08 02-1990 Safety of household and similar electrical appliances — Particular requirements for the connection of washing machines, dishwashers and tumbler dryers to the water supply mains
This Harmonization Document specifies requirements for the connection of washing machines, dishwashers and tumbler dryers to the water supply mains having a water pressure not exceeding 1 MPa (10 bar), for household, commercial and similar purposes. The connection may be temporary or permanent. Commercial and similar purposes includes the installation of appliances in shops and communal flats, for the use by staff or residents; it does not include dry cleaning, laundrettes, medical, industrial, catering and transport use. The purpose of these requirements is to prevent:
- backsiphonage of non-potable water into the potable water supply mains, even under fault conditions;
- a failure in the connection of the appliance to the water supply mains, which may result in flooding.
SIS SS 433 08 02-1990 history
1990SIS SS 433 08 02-1990 Safety of household and similar electrical appliances — Particular requirements for the connection of washing machines, dishwashers and tumbler dryers to the water supply mains