Explosion Protection Knowledge

Knowledge of Waterproofing and Dustproofing

first representation	test	Brief description	Housing protection level
0	No experiment	No protection	inherent protection.
1		Prevent solid foreign objects larger than 50mm	It can prevent solid objects with a diameter greater than 50mm from entering the shell (such as accidental contact by hands).
2		Prevents solid foreign objects larger than 12.5mm	It can prevent solid objects with a diameter greater than 12.5mm from entering the shell (such as fingers).
3		Prevents solid foreign objects larger than 2.5mm	It can prevent solid objects with a diameter greater than 2.5mm from entering the shell (such as tools, wires).
4		Protects against solid foreign objects larger than 1 mm	It can prevent solid objects with a diameter greater than 1mm from entering the shell (such as small tools, wires).
5		dust-proof	Dust-proof, the amount of dust entering is not enough to affect the normal operation of the equipment.
6		Dusty	Dust-tight, no dust can enter.

second place representation	test	Brief description	Housing protection level
0	No experiment	No protection	inherent protection.
1		Anti-drip	Dripping water (vertical dripping) has no harmful effects.
2		15°drip proof	When the shell changes from the normal position Set the tilt at less than 15°When inside, water drips vertically No harmful effects.
3		Anti-spray	Vertical to 60°range There is no water inside harmful effects.
4		Splashproof	splashing water from any direction No harmful effects.
5		squirt	Spraying water from any direction has no harmful effects.
6		Anti-wave	When there are violent waves or strong water sprays, the amount of water entering will not reach harmful effects.
7		Anti-submersion	After being immersed in water of specified pressure for a specified period of time, the amount of incoming water will not reach harmful effects.
8		Anti-diving effect	During long dives at specified pressures, water should not enter the shell.