1 theme content and suitable scope
This standard set the safe and current requirement of small-power electromotor
This standard applies to family expenses and similar utility electric equipment to use small-power motor. The 4-5 in this standard, 8-9, 12-15, 17-20, 22-23 Zhangyi applies to industry and electromotor of similar utility small-power.
2 cite standard
Electric machinery of term of GB 2900.25 electrical engineering term
Electromotor of small-power of term of GB 2900.27 electrical engineering term
Electromotor of GB 5171 small-power is general technical requirement
Line of GB 1971 electric machinery carries mark and direction of rotation
Crust of GB 4942.1 electric machinery defends classification
GB 1497 low-pressure electric equipment is basic standard
Method of experiment of heater of bright of experiment of fire hazard of product of GB 5169.4 electrical engineering electron and guideline
Experiment of fire hazard of product of GB 5169.6 electrical engineering electron is used calorific implement method of undesirable contact experiment
3 definitions
The term of 3.1 standards should accord with the regulation of GB 2900.25 and GB 2900.27.
3.2 outside dividing 3.1, the substantival term that this standard uses defines as follows:
Creepage Distance of 3.2.1 distances climbing report
Between two electric components along insulating material surface most stone's throw.
3.2.2 clearance Clearance
In the shortest linear distance between two electric components.
3.2.3 crust Enclosure
Easy touched electromotor surface, include the component appearance such as the wiring box of electromotor, but the part that does not include to touch not easily.
3.2.4 component Component
The “ component ” in this standard is to show electromotor is special form a complete set. For example: Centrifugal switch, capacitor.
3.2.5 insulator Insulator
With the part that will be isolated from and supports conductor.
The diametical Diameter Of Motor of 3.2.6 electromotor
Point to the diameter that measures on the circle is cut outside electromotor stator housing, but do not include motor medicinal powder the dimension such as box of hot muscle, wiring and welding line.
4 marks
Every 4.1 electromotor must have firm ground to indicate locally apparently in its the nameplate of the rated data of electromotor and other and necessary item.
The project that indicates on nameplate should accord with the regulation of GB 5171.
The component of 4.2 electromotor should the mark of the kind that mark has element or category, due manufactory name or brand or other and similar sign, reach its in order to distinguish to make manufacturer at other component.
The 4.3 terminal that if have,offer power source central line only, answer mark with alphabetical “N” , ground wire Duan Yingbiao with the symbol, these marks should be not put in bolt, dismountable gasket or use as on the disassembles possibly component of join lead.
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