catalogue
Table 1 (IP dustproof level):
Table 2 (IP waterproof grade):
-Waterproof test
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Table 1 (IP dustproof grade): Table 2 (IP waterproof grade):-Waterproof test and development
Table 1 and Table 2 show the protection levels indicated by two marked numbers:
Edit table of this paragraph 1(IP dustproof level):
Description of digital protection range
Without protection, there is no special protection for people or things outside.
1 Prevent the invasion of solid foreign matter with a diameter greater than 50mm, prevent the human body (such as palm) from accidentally contacting the internal parts of electrical appliances, and prevent the invasion of foreign matter with a larger size (with a diameter greater than 50mm).
2 Prevent the invasion of solid foreign bodies with a diameter greater than 12mm, prevent people's fingers from touching internal parts of electrical appliances, and prevent the invasion of medium-sized foreign bodies with a diameter greater than12.5mm..
3 Prevent the invasion of solid foreign bodies with a diameter greater than 2.5mm, and prevent tools, wires and similar small foreign bodies with a diameter or thickness greater than 2.5mm from invading and contacting the internal parts of electrical appliances.
4. Prevent the invasion of solid foreign bodies with a diameter greater than 1.0mm, and prevent tools, wires and similar small foreign bodies with a diameter or thickness greater than 1.0mm from invading and contacting the internal parts of electrical appliances.
5 completely prevent foreign bodies and dust from invading. Although it can't completely prevent dust from invading, the amount of dust will not affect the normal work of electrical appliances.
6 prevent foreign bodies and dust completely prevent foreign bodies and dust from invading.
Edit Table 2 of this paragraph (IP waterproof grade):
Protection level indicated by the second characteristic number (number)
Description of digital protection range
No protection, no special protection for water or moisture.
1 Prevent water droplets from intruding into vertically falling water droplets (such as condensed water) without damaging electrical appliances.
When the electric appliance is tilted to 15 degrees, it can still prevent water droplets from invading. When the electrical appliance is tilted from vertical to 15 degrees, water droplets will not damage the electrical appliance.
3. Prevent the sprayed water from invading the rainproof or the water sprayed in the direction with an included angle less than 60 degrees from the vertical from invading the electrical appliance and causing damage.
4 prevent splashing water from invading, and prevent splashing water from all directions from invading electrical appliances and causing damage.
5 to prevent the injected water from invading, and to prevent the water from flying from all directions and spraying from the nozzle from invading the electrical appliance, causing damage.
6. Preventing big waves from invading the electrical appliances installed on the deck can prevent the damage caused by big waves.
7 prevent water from invading when soaking. If the electric appliance is soaked in water for a certain time or the water pressure is lower than a certain standard, it can be guaranteed not to be damaged by soaking.
In order to prevent the invasion of water when sinking, the electrical appliance sinks infinitely under the specified water pressure, which can ensure that it will not be damaged by flooding.
Additional letters: Keep away from dangerous parts.
back of a hand
B finger
C tool
wire
Supplementary letter: special supplementary information
High voltage equipment
M when doing the waterproof test, the sample ran away.
■ When doing the waterproof test, the sample is still.
W climatic conditions
Edit this paragraph-waterproof test
1 and range
The waterproof test includes that the second characteristic number is 1 to 8, that is, the protection grade code is IPX 1 to IPX8.
2, waterproof test content at all levels
( 1)IPX 1
Name of method: vertical drop test
Test equipment: See 2. 1 1 for the dripping test device and its test method.
Sample placement: according to the normal working position of the sample, place the sample on the rotating sample table of 1r/min, and the distance from the top of the sample to the drip port is not more than 200mm.
Test conditions: the dripping water is10.5 mm/min;
Test duration: 10 minute; ;
(2)IPX2
Method name: tilt 15 drop test
Test equipment: See 2. 1 1 for the dripping test device and its test method.
Sample placement: make one surface of the sample form an angle of15 with the vertical, and the distance from the top of the sample to the drip port is not more than 200mm. Try one face, change another face, * * * four times.
Test conditions: the dripping water is 30.5mm/min;
Test duration: 4× 2.5 minutes (* * * 10 minute);
(3)IPX3
Name of method: drenching test
Test method:
A. Swing tube drenching test
Test equipment: pendulum water spraying and splashing test device (see 2. 14 of this book for device graphics and test methods).
Sample placement: select a pendulum tube with a suitable radius, so that the height of the sample table is at the diameter position of the pendulum tube, and place the sample on the sample table, so that the distance from the top of the sample to the sample nozzle is not more than 200mm, and the sample table does not rotate.
Test conditions: the water flow is calculated according to the number of spray holes of the pendulum pipe, and each hole is 0.07 L/min. When spraying water, water is sprayed to the sample from the spray holes of 60 arc sections on both sides of the midpoint of the pendulum tube. The tested sample is placed in the center of the pendulum tube semicircle. The pendulum tube swings 60 degrees along the vertical line, * * * 120. Each swing (2× 120 is about 4s).
Test time: continuous watering 10 minute.
B. Sprinkler sprinkler test
Test equipment: hand-held water spraying and splashing test device. See 2. 14 in this book for the graph and test method of the device.
Sample placement: make the parallel distance from the top of the test to the hand-held nozzle be between 300mm and 500mm.
Test conditions: baffle with balance weight should be installed during the test, and the water flow rate is 10 L/min.
Test time: calculated according to the surface area of the tested sample shell, every square meter 1 min (excluding the installation area), at least 5 min.
(4)IPX4
Method name: splash test;
Test method:
A. Swing tube splash test
Test equipment and sample placement: same as IPX3 (a) in item (3) above;
Test conditions: same as ipx3a； in item (3) above except the following conditions;
The water spraying area is 90 arc sections on both sides of the midpoint of the pendulum tube, and the water is sprayed to the sample. The tested sample is placed in the center of the pendulum tube semicircle. The pendulum tube swings along the vertical side 180, * * * about 360. Each swing (2× 360) is about 12s.
Test time: same as IP in (3) above.
trait
IP (International Protection) protection level and waterproof test are based on the following standards:
1) International protection and waterproof test standard drafted by IEC (International Electrotechnical Commission): IEC standard IEC 529-598.
2) National standard GB 700–86
3)GB 4208 and so on.
IP protection level laboratory: At present, the laboratories that can carry out IP level test mainly include environmental reliability and electromagnetic compatibility test center, aerospace environmental reliability test center, Suzhou Electric Appliance Research Institute, and National Electrical Appliance Product Quality Supervision and Inspection Center.
Definition of IEC IP protection level
IP stands for entrance protection. IEC IP protection level is very important for the safety protection of electrical equipment. IP and other protection grade systems provide a method to classify products according to the dustproof, waterproof and collision-proof degree of electrical equipment and packaging. This system has been recognized by most European countries. It was drafted by IEC (International Electrotechnical Commission) and published IP code 529 (BS EN 60529: 1992).
The protection level is mainly represented by IP followed by two numbers, and the numbers are used to clarify the protection level.
The first number indicates the dust-proof range of the equipment, or the degree to which people are protected from harm in a sealed environment. I stands for the level of preventing solid foreign objects from entering, with the highest level of 6;
The second number indicates how waterproof the equipment is. P stands for waterproof grade, with a maximum of 8.
Such as motor protection grade IP65, protection grade IP55 and so on.
Contact electrical equipment protection and foreign object protection level (first number) Electrical equipment waterproof protection level (second number)
A first digital protection range and a second digital protection range.
0 unprotected -0 unprotected-
1 Protect solid foreign body detectors with a diameter of 50mm and above. The diameter of the sphere is 50mm, and it cannot completely enter 1 water drop, so as to protect the water drop falling vertically from harm.
2 Solid foreign body detectors with a diameter of 12.5mm and above shall be protected, and the sphere with a diameter of 12.5mm shall not completely enter the cabinet 2. When the cabinet 2 is tilted 15 degrees, the vertically falling water drops should not cause damage when the cabinet 2 is tilted to any side 15 degrees.
3. Protect the solid foreign body detector with a diameter of 2.5mm or more. The sphere is 2.5mm in diameter and should not completely enter. 3. Protect the spilled water from both sides of the vertical line at an angle of 60 degrees, which should not cause damage.
4. Protect the solid foreign body detector with a diameter of 1.0mm and above, and the diameter of the sphere is 1.0mm, so it should not completely enter. 4 protect the water spray, and the water spray aimed at the cabinet from all directions should not cause damage.
5. Protective dust can not completely prevent dust from entering, but the amount of dust entering will not cause damage to the equipment. 5. Protective water spraying aimed at the cabinet from all directions should not cause damage.
6. Under the low pressure of 20 mbar, dust should not enter the closed cabinet. 6. Protect the strong water flow aimed at the cabinet from all directions, so as not to cause damage.
Note: The diameter of the detector should not pass through the hole 7 of the cabinet to prevent short-time immersion. When the cabinet is immersed in water for a short time under standard pressure, there should be no water that will cause damage.
8 Long-term immersion protection can be immersed in water under certain conditions and should not be damaged.
Know the waterproof grade of JIS(IPX) electronic products.
0 is not protected.
1 anti-dripping I-type water droplets have no harmful effects when falling vertically.
Water drops falling within the range of 15 "between the anti-drip type II and the vertical direction have no harmful effects.
Rain-proof type has no harmful effect within the vertical range of 60 degrees.
Splash-proof type is harmless to water splashing in any direction.
The blowout prevention type is directly affected by water spraying in any direction, and there is no harmful effect.
Waterproof type will not enter the interior if it is directly sprayed by water in any direction.
7 Anti-immersion type will not enter the interior even if it is immersed in water under specified conditions.
The underwater model can still be used after being soaked in water with a certain pressure for a long time.
Moisture-proof type can still be used when the relative humidity is greater than 90%.
The international industry standard waterproof registered IP is close to the Japanese industry standard JIS waterproof grade, which is divided into 0-8 9 grades, and the IP grade also stipulates dustproof. IPxx dustproof and waterproof grade
Dust-proof grade (indicated by the first X)
0: Unprotected
1: Prevent invasion of large solids.
2. Prevent medium-sized solids from invading.
3. Prevent small solids from entering and invading.
4. Prevent solids with an object larger than 1mm from entering.
5. Prevent the accumulation of harmful dust.
6. Completely prevent dust from entering.
Waterproof rating (indicated by the second X)
0: Unprotected
1: Dropping water into the shell has no effect.
2. When the shell is tilted to 15 degrees, the water drops have no influence on the shell.
Water or rain from 3:60 degrees to the shell has no effect.
4: The liquid splashed into the shell from any direction will not have harmful effects.
5: Rinse with water without any harm.
6: Can be used in the cabin environment.
7: Can withstand short-time immersion (1m).
8: Soak in water for a long time under a certain pressure.
For example, the scale or display instrument marked with IP65 shows that the product can completely prevent dust from entering and can be washed with water without causing any harm.
IPXX waterproof test regulations.
( 1)IPX
Name of method: vertical drop test
Test equipment: dripping test device.
Sample placement: according to the normal working position of the sample, place the sample on the rotating sample table of 1r/min, and the distance from the top of the sample to the drip port is not more than 200mm.
Test conditions: the dropping amount is 10.05 mm/min.
Duration: 10 minute
(2)IPX 2
Method name: tilt 15 drop test
Test equipment: dripping test device.
Sample placement: make one surface of the sample form an angle of15 with the vertical, and the distance from the top of the sample to the drip port is not more than 200mm. Change the other side after each test, * * * four times.
Test conditions: the dripping speed is 30.5 mm/min.
Duration: 4×2.5 minutes (*** 10 minute)
(3)IPX
Name of method: drenching test
Test method:
Answer: pendulum pipe drenching test
Test equipment: pendulum water spraying and splashing test device.
Sample placement: select a pendulum tube with a suitable radius, so that the height of the sample table is at the diameter position of the pendulum tube, and place the sample on the sample table, so that the distance from the top of the sample to the sample nozzle is not more than 200mm, and the sample table does not rotate.
Test conditions: the water flow rate is calculated according to the number of spray holes in the pendulum pipe, and each hole is 0.07L/min. When spraying water, water is sprayed to the sample from the spray holes of 60 arc sections on both sides of the midpoint of the pendulum tube. The tested sample is placed in the center of the pendulum tube semicircle. The pendulum tube swings 60 degrees along the vertical line, * * * 120. Each swing (2× 120) is about 4 s.
Test time: continuous watering 10 minute.
B. Sprinkler sprinkler test
Test equipment: hand-held water spraying and splashing test device.
Sample placement: make the parallel distance from the top of the test to the hand-held nozzle be between 300mm and 500mm.
Test conditions: baffle with balance weight should be installed during the test, and the water flow rate is 10 L/min.
Test time: calculated according to the surface area of the tested sample shell, every square meter 1 min (excluding the installation area), at least 5 min.
(4)IPX
Method Name: Splash Test
Test method:
A. Swing tube splash test
Test equipment and sample placement: same as IPX 3a； mentioned above;
Test conditions: same as IPX 3a； except the following conditions; The water spraying area is 90 arc sections on both sides of the midpoint of the pendulum tube, and the water is sprayed to the sample. The tested sample is placed in the center of the pendulum tube semicircle. The pendulum tube swings along both sides of the vertical line 180, * * * about 360. Each swing (2× 360) is about 12s.
Test time: same as IPX 3 item A above (i.e. 10 minute).
B. Sprinkler splash test
Placement of test equipment and samples: same as item B above;
Test conditions: remove the baffle with balance weight on the equipment, and the rest are the same as IPX 3 (b) above;
Test time: the same as the above item B, that is, at least 5 5minutes per square meter 1 min (excluding the installation area) according to the surface area of the sample to be tested.
(5)IPX
Name of method: water spray test
Test equipment: the nozzle has an inner diameter of 6.3 mm.
Test conditions: the distance between the test sample and the nozzle is 2.5m ~ 3m, and the water flow rate is 12.5 L/min (750 L/h).
Test time: at least 3 min per square meter 1 min (excluding installation area) according to the surface area of the tested sample shell.
(6)IPX
Method name: strong water spray test;
Test equipment: Nozzle nozzle inner diameter is12.5mm.
Test conditions: the distance between the sample and the nozzle is 2.5m ~ 3m, and the water flow velocity is 100 L/min (6000 L/h).
Test time: at least 3 min per square meter 1 min (excluding installation area) according to the surface area of the tested sample shell.
(7)IPX
Method name: short-time immersion test
Test equipment and test conditions: immersion tank. Its size should ensure that the distance from the bottom of the sample to the water surface is at least 1m after the sample is put into the immersion box. The distance from the top of the sample to the water surface should be at least 0. 15m.
Test time: 30 minutes
(8)IPX
Method name: continuous diving test;
Test equipment, test conditions and test time: it shall be agreed by both parties, and its strictness shall be higher than IPX 7.
Note: In addition, many outdoor electronic products also emphasize the floating ability.