Automatic electrical controls for household and similar use - Part 2-17: Particular requirements for electrically operated gas valves, including mechanical requirements
This clause of part 1 is replaced as follows:
Replacement:
1 This part 2 applies to electrically operated gas valves for use in, on or in association with, equipment for household and similar use that use electricity, in combination with fuel in the gaseous state such as manufactured gas, natural gas or liquefied petroleum gas intended to be used for gas burning equipment.
Additional considerations may be necessary for gas with corrosive properties.
This part 2 also applies to electrically operated gas valves using NTC or PTC thermistors, requirements for which are contained in annex J.
1.1 This part 2 applies to the inherent safety, to the operating values, operating times, and operating sequences where such are associated with equipment safety, and to the testing of electrically operated gas valves used in, or in association with, household or similar equipment.
This part 2 is also applicable to controls for appliances within the scope of IEC 335-1.
Throughout this part 2 the word "equipment" means "appliance and equipment".
This part 2 does not apply to electrically operated gas valves designed exclusively for industrial applications.
Electrically operated gas valves for equipment not intended for normal household use, but which nevertheless may be used by the public, such as equipment intended to be used by laymen in shops, in light industry and on farms, are within the scope of this part 2.
This part 2 identifies a number of mechanical features as "under consideration." Until these mechanical requirements are incorporated in this part 2, each country using this part 2 will have to quantify these requirements.
Compliance of an electrically operated gas valve with this part 2 does not imply that the valve is acceptable without further tests for these mechanical features.
1.2 This part 2 applies to manual controls when such are electrically and/or mechanically integral with electrically operated gas valves.
Requirements for manual switches not forming part of an electrically operated gas valve are contained in IEC 1058-1.
This part 2 does not apply to electrically operated gas valves of nominal connection size above DN 150.
This part 2 applies to electrically operated gas valves for maximum working pressures up to 400 kPa (4 bar).
Hereinafter, the term "valve" is used to denote an electrically operated gas valve (including prime mover and valve body).
1.3 This part 2 does not apply to electric actuators which are covered by IEC 730-2-14.
1.4 This part 2 also applies to valves utilized as part of a system, or valves mechanically integral with multifunctional controls.
1.5 This part 2 does not apply to valves energized by thermoelectric energy generated in a thermocouple or thermopile inserted in a gas flame.
2 This part 2 applies to valves with a rated voltage not exceeding 660 V and with a rated current not exceeding 63 A.
3 Is not applicable.
4 This part 2 applies also to valves incorporating electronic devices, requirements for which are contained in annex H.
5 Normative references
This clause of part 1 is applicable except as follows:
Addition:
IEC 335-1: 1991, Safety of household and similar electrical appliances - Part 1: General requirements
IEC 529: 1989, Degrees of protection provided by enclosures (IP Code)
IEC 730-2-14: 1995, Automatic electrical controls for household and similar use - Part 2: Particular requirements for electric actuators
IEC 1058-1: 1990, Switches for appliances - Part 1: General requirements
ISO 7-1: 1994, Pipe threads where pressure-tight joints are made on the threads —Part 1: Dimensions, tolerances and designation
ISO 228-1: 1994, Pipe threads where pressure-tight joints are not made on the threads -Part 1: Dimensions, tolerances and designation
ISO 274: 1975, Copper tubes of circular section - Dimensions ISO 301: 1981, Zinc alloy ingots intended for casting
ISO 4400: 1994, Fluid power systems and components - Three-pin electrical plug connectors with earth