To ground connection flexible cord, must be line of green, yellow double lubricious insulation, other lead must not use this symbol.
4.4 electromotor give a line to carry a mark to should accord with the regulation of GB 1971, engrave in give a line to carry or use tab piece or the canal indicates, to having the electromotor of wiring board, its mark should be with hour on wiring board, do not get alone and pensile grade piece or canal.
All marks on 4.5 electromotor can be used print, sculpture, suppress or other equivalent are engraved imprint method, must assure clear, clear, durable, in electromotor inside whole term of service efface not easily.
Whether to accord with a requirement, answer to undertake experimenting deciding by following methods:
The wet cotton cloth that uses dip to have water above all brushs mark 15s, subsequently reoccupy dip has petrolic cotton cloth to brush 15s.
The mark of electromotor should be after the full test that provides with this standard through afore-mentioned experiments, still maintain clarity, easy differentiate, cannot easily eliminate, nameplate should not move easily and create a desquamation edge appearance likely.
5 crust defend
The case with 5.1 due and good electromotor defends, its crust defends the regulation that should press GB 492.1 classifications, answer to make clear a regulation in product mark standard.
Whether to accord with a requirement, answer to undertake experimenting checking deciding by GB 4942.1.
6 start
6.1 electromotor should be started normally below following voltage circumstance, to containing the electromotor of the component that start, when starting, its start component to should work reliable, shake without the contact.
A. Electromotor is started 3 times below 0.85 times rated voltage;
B. To containing the electromotor of the component that start, still answer to issue restart 3 times in 1.06 times rated voltage.
Undertaking this when the experiment, should using the medium circumstance that start actually to affirmatory electromotor is started to carry for nothing or take load to start according to electromotor, make clear a regulation in product standard.
When electromotor is beginning to start, should be actual cooling condition, starting continuously between, electromotor should achieve static condition restart.
When 6.2 electromotor are asking to start by 6.1, its overload protector do not answer movement.
Whether to accord with a requirement, should have 6.1 tests while the examination decides.
7 leak electric current
7.1 electromotor must have good insulation property, working normally, its discharge electric current should not pass big.
Electromotor leak electric current is restricted to be worth set by standard of of all kinds product.
7.2 electromotor move below the rated voltage of 1.06 times, run mode is set by product standard.
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