Safety of household and similar electrical appliances - Part 25 : Particular requirements for dishwashers
1 Scope
This clause of GB/T 4706.1-2024 is replaced by the following.
This standard deals with the safety of electric dishwashers for household and similar purposes
This standard applies to the electric dishwashers for household and similar purposes that are intended for washing and rinsing dishes, cutlery and other utensils, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances.
In this standard, the appliances intended for normal household and similar also include those used by laymen in shops, in light industry and on farms. However, if the appliance is intended to be used professionally for washing and rinsing dishes and cutlery and other utensils that are used for commercial purposes, the appliance is not considered to be for household and similar use only.
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 101: Attention is drawn to the fact that
– for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be necessary;
– additional requirements may be specified by the national health authorities concerned.
Note 102: This standard does not apply to
– commercial electric dishwashing machines (IEC 60335-2-58);
– appliances intended for industrial purposes;
– appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas).
2 Normative references
This clause of GB/T 4706.1-2024 is applicable except as follows.
Addition:
ISO 1817 Rubber, vulcanized or thermoplastic - Determination of the effect of liquids
Note: GB/T 1690-2010 Rubber, vulcanized or thermoplastic - Determination of the effect of liquids (ISO 1817:2005, MOD)
ISO 4046-4:2002 Paper, board, pulps and related terms - Vocabulary - Part 4 : Paper and board grades and converted products
IEC 60436 Electric dishwashers for household use - Methods for measuring the performance
Note: GB/T 20290-2024 Electric dishwashers for household use - Methods for measuring the performance (IEC 60436: 2020, MOD)
3 Terms and definitions
This clause of GB/T 4706.1-2024 is applicable except as follows.
3.1.9 Replacement:
normal operation
operation of the appliance under the following conditions.
The appliance is operated with the maximum quantity of water for which it is constructed, without detergents or rinsing agents and without place settings or serving pieces. However if it is apparent that the test results will be affected by the load, the appliance is loaded with the maximum number of place settings and serving pieces specified in the instructions. The place settings and serving pieces to be used are specified in IEC 60436.
The water is supplied at any convenient pressure within the range specified in the instructions, the temperature of the water at the inlet being
– 60 °C ± 5 °C or that specified in the instructions if it is higher, for inlets intended for hot water only;
– 15 °C ± 5 °C for inlets intended for cold water only.
If the appliance has an inlet intended for hot or cold water, the most unfavourable water temperature is used.
4 General requirement
This clause of GB/T 4706.1-2024 is applicable.
5 General conditions for the tests
This clause of GB/T 4706.1-2024 is applicable except as follows.
5.3 Addition:
The test of 15.101 is carried out before the test of 15.3.
6 Classification
This clause of GB/T 4706.1-2024 is applicable except as follows.
6.1 Modification:
Appliances shall be class I, class II or class III.
6.2 Addition:
Appliances intended to stand on a draining board shall be at least IPX1.
7 Marking and instructions
This clause of GB/T 4706.1-2024 is applicable except as follows.
7.1 Addition:
Appliances without automatic water-level control shall be marked with the maximum permissible water level.
7.10 Addition:
If the off position is only indicated by letters, the word "off" shall be used.
7.12 Addition:
The instructions shall state
– the maximum number of place settings to be washed;
– that the door shall not be left in the open position since this could present a tripping hazard;
– how to load the dishwasher, and the substance of the following:
WARNING: Knives and other utensils with sharp points must be loaded in the basket with their points down or placed in a horizontal position.
The instructions shall include the substance of the following:
This appliance is intended to be used in household and similar applications such as:
– staff kitchen areas in shops, offices and other working environments;
– farm houses;
– by clients in hotels, motels and other residential type environments;
– bed and breakfast type environments.
If the manufacturer wants to limit the use of the appliance to less than the above, this must be clearly stated in the instructions.
7.12.1 Addition:
For dishwashers having ventilation openings in the base, the instructions shall state that the openings must not be obstructed by a carpet.
8 Protection against access to live parts
This clause of GB/T 4706.1-2024 is applicable.
9 Starting of motor-operated appliances
This clause of GB/T 4706.1-2024 is not applicable.
10 Power input and current
This clause of GB/T 4706.1-2024 is applicable except as follows.
10.1 Addition:
The selected representative period is the period during which the power input is the highest.
10.2 Addition:
The selected representative period is the period during which the current is the highest.
11 Heating
This clause of GB/T 4706.1-2024 is applicable except as follows.
11.7 Replacement:
Appliances incorporating a programmer or timer are operated for two cycles with the programme that results in the highest temperature rises. The cycles are separated by a rest period of 15 min with the door or lid open.
Other appliances are subjected to two cycles of the sequence stated in the instructions that results in the highest temperature rises or for two periods of 15 min each, whichever is longer. The cycles or periods are separated by a rest period of 15 min with the door or lid open. Discharge pumps driven by a separate motor are then subjected to three periods of operation, each separated by a rest period of 15 min. The duration of each period of operation is 1.5 times the period necessary to empty the appliance when it is filled with the maximum quantity of water for which it is constructed. The level of the water discharge is
– 90 cm above the floor, for appliances standing on the floor;
– the maximum height above the supporting surface, as stated in the instructions, for other appliances.
