GB/T 4706.66-2024 Safety of household and similar electrical appliances - Part 66: Particular requirements for pumps
1 Scope
This clause of Part 1 is replaced by the following.
This document deals with the safety of electric pumps for household and similar purposes.
This document applies to electric pumps for liquids having a temperature not exceeding 90 °C, intended for household and similar purposes, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances.
Note 101: Examples of appliances within the scope of this standard are
——aquarium pumps;
——pumps for garden ponds;
——shower-boost pumps;
——sludge pumps;
——submersible pumps;
——table fountain pumps;
——vertical wet pit pumps.
Appliances not intended for normal household use, but that 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 this standard.
As far as is practicable, this standard 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.
Note 102: Attention is drawn to the fact that
——for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements can be necessary;
——in many countries, additional requirements are specified by the relevant national regulatory authorities.
Note 103: This standard does not apply to
——stationary circulation pumps for heating and service water installations (GB/T 4706.71);
——pumps for flammable liquids;
——pumps intended exclusively for industrial purposes;
——pumps intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas);
——pumps incorporating chlorinators of the electrolytic type.
Note 104: Pumps incorporated in appliances are not covered by this standard unless a specific reference is made.
2 Normative references
This clause of Part 1 is applicable, except as follows.
Addition:
IEC 60364-7-701 Low voltage electrical installations - Part 7-701: Requirements for special installations or locations - Locations containing a bath or shower
Note: GB/T 16895.13-2022, Low-voltage electrical installations - Part 7-701: Requirements for special installations or locations - Locations containing a bath or shower (IEC 60364-7-701:2019, IDT)
IEC 60364-7-702 Low voltage electrical installations - Part 7-702: Requirements for special installations or locations - Swimming pools and fountains
Note: GB/T 16895.19-2017, Low-voltage electrical installations - Part 7-702: Requirements for special installations or locations - Swimming pools and fountains (IEC 60364-7-702:2010, IDT)
3 Terms and definitions
This clause of Part 1 is applicable except as follows.
3.1.9 Replacement:
normal operation
operation of the appliance under the following conditions:
Pumps are operated with the inlet in liquid at zero pressure, and the discharge outlet is Maintained between the minimum and maximum total head, so that the highest power input is attained. The total head is measured between the inlet and the discharge outlet.
Sludge pumps are operated with water.
3.101
submersible pump
pump having the electrical part completely or partially immersed in liquid during normal use
Note: The motor windings may be dry, immersed in oil or in the pumped liquid.
3.102
vertical wet pit pump
pump having the electrical part separated from the hydraulic part and not immersed in liquid during normal use
Note: Controls such as water level switches may be immersed in the liquid.
3.103
sludge pump
pump intended for moving a mixture of water and small solids
Note: Sludge pumps may be submersible pumps or vertical wet pit pumps.
3.104
shower-boost pump
pump for installation in the water supply system to increase the water flow for showering purposes
3.105
deep well pump
multistage submersible pump intended to be used in bore wells
