BS EN 61770:2009

Electric appliances connected to the water mains. Avoidance of backsiphonage and failure of hose-sets

Published:

31 Jul 2009

•

Withdrawn:

28 May 2021

1 Scope

This International Standard specifies requirements for appliances for household and similar purposes to prevent the backsiphonage of non-potable water into the water mains. It also specifies requirements for hose-sets used for connecting such appliances to the water mains that supply water at a pressure not exceeding 1 MPa.

NOTE 1 Examples of similar purposes are the installation of appliances in canteens, restaurants, launderettes and communal flats.

NOTE 2 This standard does not apply to

– appliances used for dry cleaning;
– appliances for medical purposes;
– appliances intended for industrial purposes;
– water heaters that are an integral part of the water supply system;
– water coolers that are an integral part of the water supply system.

NOTE 3 The connection of the appliance to the water mains may be temporary or permanent.

NOTE 4 When reference is made to the water mains, water supplied from a cistern or similar system is also included.

NOTE 5 Many countries have requirements concerning the prevention of contamination of potable water as a result of contact with unsuitable materials upstream of a backflow prevention device.

Product Details

Descriptors

Pipes

Contamination

Flexible pipes

Electrical household appliances

Water supply (buildings)

Safety measures

Potable water

Tumble driers

Water valves

Water mains

Washing machines

Safety devices

Dishwashing machines

Valves

Flow control

ICS Codes

33.160.40 Video systems

91.140.60 Water supply systems

97.040.40 Dishwashers

97.060 Laundry appliances

Committee

CPL/61

International relationships

Identical to:

EN 61770:2009/AC:2011

IEC/TR 62935 Ed.1.0

ISBN

978 0 580 75735 8

Publisher

BSI