1 Scope
This clause of GB 4706.1-2005 is replaced by the following.
This part of GB 4706 specifies the safety of motor-compressors for household and similar uses.
This part is applicable to sealed (hermetic and semi-hermetic type) motor-compressors, their protection and control systems, if any, which are intended for use in equipment for household and similar purposes and which conform with the standards applicable to such equipment. It applies to motor-compressors tested separately, under the most severe conditions that may be expected to occur in normal use, their rated voltage being not more than 250 V for single-phase motor-compressors and 480 V for three-phase motor-compressors.
Note 1: Examples of equipment which contain motor-compressors are:
——Refrigerators, food freezers and ice makers (GB 4706.13);
——Air-conditioners, electric heat pumps and dehumidifiers (GB 4706.32);
——Commercial dispensing appliances and vending machines (GB 4706.72);
——Factory-built assemblies for transferring heat in applications for refrigerating, air-conditioning or heating purposes or a combination of such purposes.
Note 2: This standard does not supersede the requirements of standards relevant to the particular appliance in which the motor-compressor is used. However, if the motor-compressor type used complies with this standard, the tests for the motor-compressor specified in the particular appliance standard may not need to be made in the particular appliance or assembly. If the motor-compressor control system is associated with the particular appliance control system, additional tests may be necessary on the final appliance.
So far as is practical, this part deals with the common hazards presented by motor-compressors used in appliances which are encountered by all persons in and around the home. However, it does not in general take into account:
——the use of appliances by young children or infirm persons without supervision;
——playing with the appliances by young children.
Note 3: attention is drawn to the fact that:
——For motor-compressors intended to be used in appliances in vehicles or on board ships, additional requirements may be necessary;
——In many countries, additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labour and water supply and similar authorities.
Note 4: This part does not apply to:
——Motor-compressors designed exclusively for industrial purposes;
——Motor-compressors used in 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).
Note 5: If motor-compressors for refrigerant R744 used in appliances with a transcritical refrigeration system are equipped with pressure relief devices, compliance with the requirements for these devices is checked during the tests on the final appliance.
2 Normative References
The following normative documents contain provision which, through reference in this text, constitute provisions of this part. For dated reference, subsequent amendments to, or revisions of, any of these publications do not apply; however, parties to agreements based on this Part are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For undated references, the latest edition of the normative document referred to applies.
This clause of GB 4706.1-2005 is applicable except as follows.
Modification:
GB/T 3667.1 AC Motor Capacitors Part 1: General Performance, Testing and Rating - Safety Requirements - Guide for Installation and Operation (GB/T 3667.1-2005, IEC 60252-1: 2001, IDT)
3 Terminologies and Definitions
For the purpose of this part of GB 4706, the following terminologies and definitions apply.
This clause of GB 4706.1-2005 is applicable except as follows.
3.101
Motor-compressor
Foreword I
IEC Foreword IV
1 Scope
2 Normative References
3 Terminologies and Definitions
4 General Requirement
5 General Conditions for the Tests
6 Classification
7 Marking and Instructions
8 Protection against Access to Live Parts
9 Starting of Motor-operated Appliances
10 Power Input and Current
11 Heating
12 Void
13 Leakage Current and Electric Strength at Operating Temperature
14 Transient Over-voltages
15 Moisture Resistance
16 Leakage Current and Electric Strength
17 Overload Protection of Transformers and Associated Circuits
18 Endurance
19 Abnormal Operation
20 Stability and Mechanical Hazards
21 Mechanical Strength
22 Construction
23 Internal Wiring
24 Components
25 Supply Connection and External Flexible Cords
26 Terminals for External Conductors
27 Provision for Earthing
28 Screws and Connections
29 Clearances, Creepage Distances and Solid Insulation
30 Resistance to Heat and Fire
31 Resistance to Rusting
32 Radiation, Toxicity and Similar Hazards
Annexes
Annex C (Normative) Aging Test on Motors
Annex D (Normative) Thermal Motor-protector
Annex AA (Normative) Running Overload Tests for Motor-compressors Classified as Tested with Annex AA
Bibliography
