UL 60730-2-16A:2002 pdf download Automatic Electrical Controls for Household and Similar Use; Part 2: Particular Requirements for Automatic Electrical Water Level Controls of the Float Type for Household and Similar Applications
1 Scope and normative references
This clause of part 1 is applicable except as follows:
1.1 Replacement:
This part of IEC 60730 pplies to automatic electrical wATER LEVEL OPERATING CONTRoLs of the float type foruse in, on or in association with equipment for general household and similar use.
Examples are water level controls for swimming pool pumps, water tank pumps, cooling towers, dishwashers, and washingmachines.
1.1.1 This part 2 applies to the inherent safety, to the oPERATING VALUES, OPERATING SEQUENCES where suchare associated with equipment protection, and to the testing of automatic electrical wATER LEVEL OPERATINGCONTRoLs used in, on or in association with household and similar equipment.
This part 2 is also applicable to controls for appliances within the scope of lEC 60335, IEC 60378 and lEC60364-7-702
Automatic electrical wATER LEVEL OPERATING CONTRoLs 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 inshops, in light industry and on farms, are within the scope of this part 2.
This part 2 is also applicable to individual controls utilized as part of a control system or controls whichare mechanically integral with multifunctional controls having non-electrical outputs.
This part 2 is not applicable to pressure operated water level sENSING CONTRols for boiler applications.
requirements for which are contained in IEC 60730-2-15.
This part 2 does not apply to WATER LEVEL OPERATING CONTRoLs designed exclusively for industrial applications
Throughout this part 2, the word “equipment” means “appliance and equipment.”
1.1.2 This part 2 applies to automatic ELECTRICAL CONTRoLs, mechanically operated, responsive to orcontrolling a water level.
1.1.3 This part 2 contains requirements for electrical features of wATER LEVEL OPERATING CONTRoLs andrequirements for mechanical features that may affect their electrical safety.
1.1.4 This part 2 applies to MANUAL CONTRoLs when such are electrically and/or mechanically integral withWATER LEVEL OPERATING CONTROLS
1.1.5 in general, these wAER LEVEL OPERATING CONTRLs are integrated or incorporated with the equipmentor are intended to be integrated or incorporated in or on the equipment. This part 2 also covers thesecontrols when they are independently mounted or of in-line cord construction.
1.2 Replacement:
This part 2 applies to controls with a RATED VOLTAGE not exceeding 660 V and a RATED CURRENT not exceeding63A
1.3 Replacement:
This part 2 takes into account the RESPONSE VALUE of an AUTOMATIC ACTioN of a control where such a RESPONSEVALUE is dependent upon the method of mounting the control. Where a RESPONSE VALUE is of significantpurpose for the protection of the usER, or surroundings, the value defined in the appropriate householequipment standard or as determined by the manufacturer shall apply.
1.4 Replacement.
This part 2 applies also to controls incorporating ELECTRONIC DEVcEs, requirements for which are containedin annex H.
2 Definitions
This clause of part 1 is applicable except as follows:
2.2 Definitions of types of control according to purpose
2.2.19 Add the following explanatory note:
See 2.2.101.
2.2.20 Add the following explanatory note.
See 2.2.102.
Additional definitions.
2.2.101 WATER LEVEL OPERATING CONTROL: A control of the float type which is intended to keep the waterlevel below or above one particular value during normal operating conditions and which may haveprovision for sETTNG by the usER.
A WATER LEVEL OPERATING CONTROL is of the automatic reset type
2.2.102 WATER LEVEL PROTECTIVE CONTROL: Control of the float type which is intended to prevent ahazardous situation during abnormal operation of the equipment either by
1) keeping the water level below or above one or more particular values, or by