Import and export coorporation Qingdao Haichang Marine Equipment Co.,Ltd
IP protection level
The PROTECTION grade system for IP (INGRESS PROTECTION) was drafted by the IEC (INTERNATIONAL ELECTROTECHNICAL COMMISSION) to classify electrical appliances according to their dustproof, dampproof properties.IP protection grade is composed of two Numbers, the first digital said electrical dust, the level of the external things out (here referring to foreign object contains tools, man's fingers are not in contact with the electrical appliances within the live part, in order to avoid electric shock), the second number indicates electric moisture proof, waterproof airtight degree, the greater the number said the higher degree of protection.[1]
Chinese name
IP protection level
Foreign names
INGRESS PROTECTION,
The grass
IEC
Group into Two Numbers
First number
The level at which an electric appliance can prevent dust and foreign matter from intruding
Second number
Electrical appliances moisture - proof, waterproof intrusion of the degree of closure
Special point
The higher the number, the higher the level of protection
Directory
1.1 representation method
2. 2 prevention of danger
3. 3 special information
1.4 IP test
2. The scope of forced
3. Feed grade waterproof
1. The forced the words
2. Fluid level definitions
Said method
The protection level is usually expressed by following two Numbers after IP, and the number is used to define the protection level.
The first number indicates the extent to which the device is resistant to dust, or the extent to which people are protected from harm in a sealed environment.Represents the level at which solid foreign matter is prevented from entering. The highest level is 6.
The second figure indicates how waterproof the equipment is.Represents the level to prevent water from entering. The highest level is 8.
The first digital dust level after IP
Digital protection range description
0 .There is no special protection for people or things outside
1. Prevent the penetration of solid objects with a diameter greater than 50mm; prevent the human body (such as the palm of the hand) from contacting the internal parts of the electric appliances due to accidents; prevent the intrusion of external objects with a larger size (greater than 50mm in diameter)
2. Prevent the penetration of solid objects larger than 12.5mm in diameter, prevent the fingers from touching the internal parts of the appliance, and prevent the intrusion of objects of medium size (greater than 12.5mm in diameter)
3. Prevent the penetration of solid objects larger than 2.5mm in diameter and the penetration of tools, wires and similar small external objects larger than 2.5mm in diameter and thickness from contacting the internal parts of the appliance
4. Prevent the penetration of solid objects larger than 1.0mm in diameter and the penetration of tools, wires and similar small external objects larger than 1.0mm in diameter and thickness from contacting the internal parts of the appliance
5. To prevent the invasion of foreign objects and dust completely, although not completely prevent the invasion of dust, but the amount of dust will not affect the normal operation of electrical appliances
6. Prevent foreign matter and dust from invading completely
Second digit after IP: waterproof level
Digital protection range description
0.No special protection for water or moisture without protection
1. Prevent water droplets from being immersed in water drops falling vertically (such as condensate) without causing damage to electrical appliances
2. When the device is tilted from vertical to 15 degrees, it will not damage the device
3. Prevent the water spraying from being immersed in the rain-proof water or damage caused by the water spraying in the direction of the vertical Angle less than 60 degrees
4. Prevent the splash of water from immersion to prevent the splash of water in all directions from invading the electrical appliances and causing damage
5. Prevent the water from being sprayed from being immersed in a low pressure spray lasting at least 3 minutes
6. Prevent large waves from being immersed in water for at least 3 minutes
7. Prevent water from being immersed in water up to 1 meter deep when soaking
8. Prevent water from being immersed in water more than 1 meter deep during sinking to prevent continuous immersion.The exact conditions are specified by the manufacturer for each device.
To prevent the danger
A hand
B the fingers
C tools
D wire
Special information
H high voltage equipment
M runs the test sample during waterproof test
The sample stands still when S conducts a waterproof test
W climatic conditions
IP test
The scope
The waterproof test includes the second feature number from 1 to 8, that is, the protection grade code is IPX1 to IPX8.
Level of waterproof
(1) the IPX 1
Method name: vertical drop water test
Test equipment: drip test equipment
Sample placement: according to the normal working position of the sample, it is placed on the rotating sample table with 1r/min. The distance between the top of the sample and the drip outlet is not more than 200mm
Test conditions: the droplet amount was 1.0 + 0.5mm/min
Duration: 10 min
2 the IPX 2
The method name: drop test
Test equipment: drip test equipment
A sample place: make sample surface and vertical into 15 ° Angle, sample top to drop port distance not greater than 200 mm.After each test, change the other side four times.
Test conditions: the droplet amount is 3.0 + 0.5mm /min
Duration: 4 * 2.5 min (10 min in total)
(3) the IPX 3
Method name: water splash test
Test method:
A.Pendulum type water spraying test
Test equipment: swing pipe sprinkler test equipment
Sample placement: select the appropriate radius of the pendulum tube, so that the height of the sample mesa is in the position of the diameter of the pendulum tube, and place the sample on the sample table, so that the distance between the top and the sample nozzle is not greater than 200mm, and the sample table is not rotating.
Test conditions: water flow by arranging the blowhole is counting, every hole is 0.07 L/min, water spray, 60 ° to each side of arranging the midpoint segment within the blowhole water spray to the samples.The sample was placed in the center of the pendulum semicircle.Tube is placed in vertical sides is 60 °, 120 °.Each swing (2 x 120 °) about 4 s
Test time: continuous watering for 10 min
B.Sprinkler test
Test equipment: portable sprinkler test device
Sample placement: make the parallel distance between the top of the test and the nozzle of the hand sprinkler between 300mm and 500mm
Test conditions: during the test, a baffle with a balance weight shall be installed, and the water flow shall be 10 L/min
Test time: 1 min per square meter (excluding installation area), at least 5 min per square meter, according to the surface area of the tested sample shell
(4) the IPX 4
Method name: water spraying test
Test method:
A.Swinging pipe splash test
Test equipment and sample placement: the same as above mentioned item a of IPX 3;
Test conditions: the test conditions are the same as those mentioned in paragraph a of IPX 3 except the conditions described above.Water area for arranging the midpoint 90 ° to each side of segmental arc blowhole of hydraulic spray it to the samples.The sample was placed in the center of the pendulum semicircle.Swinging 180 ° to each side of tube is placed in vertical, a total of about 360 °.Each swing (2 x 360 °) about 12 s
Test time: same as above IPX 3 a (i.e. 10 min).
B.Sprinkler splash test
Test equipment and sample placement: same as above mentioned item b of IPX 3;
Test conditions: remove and install the baffle with balance weight on the equipment, the rest are the same as above mentioned item b of IPX 3;
Test time: the test time is the same as above mentioned item b of IPX 3, i.e., 1 min per square meter (excluding installation area) and minimum 5min per square meter according to the surface area of the tested sample
5] IPX 5
Method name: water spraying test
Test equipment: the inner diameter of nozzle sprinkler is 6.3mm
Test conditions: the distance between the test sample and the nozzle is 2.5m ~ 3m, and the water flow is 12.5 L/min (750 L/h).
Test time: 1 min per square meter (excluding installation area), minimum 3 min per square meter, according to the surface area of the tested sample
[6] the IPX 6
Method name: strong water spraying test;
Test equipment: the inner diameter of nozzle sprinkler is 12.5 mm
Test conditions: the distance between the test sample and the nozzle is 2.5m ~ 3m, and the water flow is 100l /min (6000 L/h).
Test time: 1 min per square meter (excluding installation area), minimum 3 min per square meter, according to the surface area of the tested sample
Once the IPX 7
Method name: short-term immersion test
Test equipment and test conditions: immersion tank.The size of the sample should be at least 1m from the bottom of the sample to the surface after it is put into the immersion tank.The distance from the top of sample to the water surface is at least 0.15m
Test time: 30 min
Being the IPX 8
Method name: continuous diving test;
Test equipment, test conditions and test times: as agreed by both parties, the severity of the test shall be higher than that of IPX 7.
Note: in addition, many outdoor electronic products also emphasize floating ability.
The text
The PROTECTION level and waterproof test of IP (INGRESS PROTECTION) are based on the following standards:
1) INTERNATIONAL standards for protection and waterproofing testing were drafted by the INTERNATIONAL ELECTROTECHNICAL COMMISSION: IEC 529-598
2) national standard GB 700-86
3) GB 4208-2008 shell protection level (IP code), etc.
IP protection level laboratory: the laboratory that can carry out IP level test mainly has a test laboratory, environmental reliability and electromagnetic compatibility test center, aerospace environmental reliability test and test center, suzhou institute of electrical science research institute, and national quality supervision and inspection center of electrical products.
Class definition
IEC IP Protection grade is an important criterion for the safety Protection of electrical equipment. The IP Protection grade system provides a method for classifying products according to the standards of dust, water and collision prevention of electrical equipment and packaging
The system, which is recognized by most European countries, was drafted by the International Electro Technical Commission and announced in the IP code of the IED529 (BS EN 60529:1992).
The protection level is usually expressed by following two Numbers after IP, and the number is used to define the protection level.
The first number indicates the extent to which the device is resistant to dust, or the extent to which people are protected from harm in a sealed environment.I represents the level at which solid foreign matter is prevented from entering. The highest level is 6.
The second figure shows how waterproof the equipment is.P represents the level of prevention of water entry, with a maximum level of 8.
Such as the motor protection grade IP65, protection grade IP55 and so on.
Contact electrical equipment protection and foreign matter protection grade (number 1) electrical equipment waterproof protection grade (number 2)
The first digital dustproof range the second digital waterproof range
0 no protection - 0 no protection -
1. To protect the 50mm diameter and larger solid external body detector, the diameter of the sphere is 50mm, and it should not enter the water droplet completely to protect the vertically falling water droplet from damage
2. Protect the 12.5mm diameter and larger solid external body detector. The ball diameter is 12.5mm, and it should not enter the two cabinets with a full tilt of 15 degrees
3. Protect the 2.5mm diameter and larger solid external body detector, and the ball diameter is 2.5mm. Do not fully enter the water splashing out of the protection at an Angle of 60 degrees from both sides of the vertical line and should not cause damage
4. For the protection of 1.0mm diameter and larger solid external body detectors, the ball diameter is 1.0mm, and it shall not enter into the water spraying of the 4 protective sprinkler from every direction to the cabinet body and shall not cause damage
5. It is impossible to completely prevent dust from entering, but the amount of dust entering will not cause damage to the equipment
6. When dust closes the cabinet body at a low pressure of 20 millibars, it shall not enter dust. 6
7. When the protection short-time immersion cabinet body is temporarily immersed in water under standard pressure, there shall be no water immersion that can cause damage
Protective long-term immersion can be submerged under certain conditions without causing damage
Note: the diameter of the detector should not pass through the hole of the cabinet
Know the waterproof level of electronic products JIS(IPX)
0 no protection
There is no harmful effect on the vertical drop of drip proof type I
Type 2 drip-proof Ⅱ and vertical direction into 15 "falling within the scope of droplets of water, no harmful effects
There is no harmful effect on rainfall within 60 degrees of rain type and vertical direction
Splash - proof type is not affected by water splash in any direction
The spray type is directly affected by water injection in any direction without any harmful effect
6. Water resistant type will not enter the interior if it is directly sprayed by water in any direction
The immersion type will not enter the interior even if it is immersed in water under specified conditions
Water medium to long time immersion in a certain pressure water can still be used
9 moisture-proof type can still be used when the relative humidity is over 90%
The IP waterproof level of the international industrial standard is close to that of JIS of Japan's industrial standard, which is classified as 0-8, and the IP level also stipulates the dust prevention.IPxx dustproof waterproof grade
Dustproof grade (the first X denotes)
0: no protection
1: prevent large solid intrusion
2: prevent medium - sized solid intrusion
3: prevent small solid from entering
4: prevent solid objects greater than 1mm from entering
5. Prevent harmful dust accumulation
6: completely prevent dust from entering
Waterproof rating (the second X denotes)
0: no protection
1: there is no influence when water drops into the shell
2: when the shell is tilted to 15 degrees, it will not be affected if water drops into the shell
3: water or rain will not affect from the 60-degree Angle to the shell
4: no damage is caused when liquid is spilled in any direction on the shell
5: rinsing with water is harmless
6: it can be used in the cabin environment
7: water resistance within a short time (1m)
8: soak for a long time under certain pressure
Example: a scale or display instrument labeled IP65 indicates that the product can completely prevent dust from entering and can be rinsed with water without any harm.
Regulations on waterproof test in IPXX grade.
The resources