Manufacture/sales of waterproof harness for automotive|battery|electronic equipment|outdoor equipment

Professional production/sales of automotive|battery|electronic equipment|outdoor equipment waterproof harness, products are mainly used in LED street lights, LED drive power, LED display, lighthouses, cruise ships, industrial equipment, communications equipment, detection equipment, etc., but also widely used in stage lights, aquatic, bathroom, switch power, electromechanical equipment and other needs waterproof connection.
1、What is waterproof harness? ：
 Waterproof harness is a waterproof connection line, also known as waterproof plug, waterproof connector is a plug with waterproof performance, and can provide safe and reliable electrical, signal connection to the product. We are widely used around us! For example: led street lights, led drive power, led display, lighthouse, cruise ships, industrial equipment, communications equipment, testing equipment, etc., all need waterproof harnesses and connectors. There are many brands and types of waterproof plugs on the market, including the traditional home life with waterproof plugs, such as triangular plugs, etc. can be called plugs, but generally are not waterproof. Then the waterproof plug is how to determine the waterproof measurement of IP, waterproof higher level of IPX8.
For waterproof connectors waterproof performance of the main assessment criteria is based on IP waterproof rating standards. See how waterproof connectors waterproof performance, mainly by looking at the two digits behind the IPXX, bit X is from 0 to 6, the higher level of 6, for the dustproof logo; the second digit is from 0 to 8, the higher level of 8; therefore, the higher waterproof level of waterproof connectors for IPX8. Sealing principle: rely on up to five seals and sealing rings to pressure pre-tight seal. This seal does not lose its preload when the connector expands and contracts, ensuring the waterproof effect for a long time and making it impossible for water molecules to penetrate under normal pressure. (Can work in less than 2M water depth for a long time).

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2、What are the waterproof requirements of the harness used in waterproof harness? :
  Harness waterproofing is a necessary element of the harness work. Once the waterproof harness fails, it is easy to cause each electrical system to work abnormally, affecting the comfort of the whole car, and even triggering great safety risks. After the design is completed, a waterproofing test should be conducted to check the reliability of the waterproofing design. Here I will briefly introduce the definition and test method of automotive wiring harness waterproof level.
Our common expression that IPXX or whatever, IP and the two numbers behind have a certain meaning.
IP (INGRESS PROTECTION) protection level system is drafted by the IEC (INTERNATIONAL ELECTROTECHNICALCOMMISSION), the electrical appliances according to its dustproof and moisture-proof characteristics to be graded. IP protection level is composed of two numbers, the first number indicates that the electrical appliances dustproof, to prevent the intrusion of foreign objects The first number indicates the level of dustproofing and protection against foreign objects (the foreign objects referred to here include tools, human fingers, etc. cannot touch the electrically charged part of the appliance to avoid electric shock), and the second number indicates the degree of confinement of the appliance against moisture and water immersion, and the larger the number, the higher the level of protection.
Protection level is mostly expressed by IP followed by two numbers, and the number is used to clarify the level of protection.
The digit indicates the extent to which the equipment is resistant to fine dust, or the degree to which people are protected from hazards in a sealed environment. represents the level of protection against the entry of solid foreign bodies, more particularly 6;
The second digit indicates the degree to which the equipment is waterproof. It represents the level of protection against water ingress, more specifically 8.
If the motor protection level IP65. contact electrical equipment protection and foreign object protection level (a number) Electrical equipment waterproof protection level (the second number)

IP dustproof rating (indicated by an X)
0 : No protection
1 : Protected against large solids
2 ：Protected against medium-sized solids
3 ：Protected against the intrusion of small solids
4 ：Protection from solids larger than 1mm
5 : Prevents the accumulation of harmful dust
6：Prevent dust from entering completely
Because the general requirements of the harness for dustproof or very high, we default to 6, which is why we often report on the supplier or drawings, will be IP6X to indicate the waterproof level of the harness.
IP waterproof rating range
The waterproof test includes a second feature number from 1 to 8, i.e. the protection class code is IPX1 to IPX8.
No protection No special protection
1 Protection against drip water intrusion Protection against vertical drip water
2 Protection against dripping water intrusion even when tilted 15 degrees Protection against dripping water even when electrical equipment is tilted 15 degrees
3 Protection from water jets Water jets from rainwater, or water jets from a vertical angle of less than 50 degrees
4. Prevents splash water intrusion Prevents splash water intrusion from all directions
5 Prevent water intrusion from large waves Prevent water intrusion from large waves or rapid spray from water jets
6 prevent the intrusion of water from large waves Electrical equipment intrusion into the water in a certain time or water pressure conditions, but still ensure the normal operation of the equipment
7 prevent water intrusion of water intrusion of electrical equipment indefinitely submerged in water under certain conditions of water pressure, but still ensure the normal operation of the equipment
8 prevent the impact of submersion

IP protection level test
(1) IPX 1
Method name: Vertical drip test
Test equipment: Drip test device
Specimen placement: placed in the normal working position of the specimen on the rotating sample table at 1r/min, the distance from the top of the sample to the drip port is not more than 200mm
Test conditions: drip volume of 1.0 ± 0.5mm / min
Duration: 10 min
(2) IPX 2
Method name: Tilt 15°drip test
Test equipment: drip test device
Specimen placement: make one face of the specimen at an angle of 15° with the vertical line, and the distance from the top of the sample to the drip port is not more than 200 mm. after each test, change another face, a total of four times.
Test conditions: the drip volume of 3.0 ± 0.5 mm / min
Duration: 4×2.5 min (total 10 min)
(3) IPX 3
Method name: drenching test
Test method:
a. Pendulum tube drenching test
Test equipment: pendulum tube drench splash water test device
Specimen placement: choose the appropriate radius of the pendulum tube, so that the height of the sample table in the position of the diameter of the pendulum tube, the specimen on the sample table, so that the distance from the top to the sample spout is not more than 200mm, the sample table does not rotate.
Test conditions: the water flow rate is calculated according to the number of spray holes of the pendulum, each hole is 0.07 L/min, when the water shower, the pendulum tube at the midpoint of each side of the 60 ° arc section of the spray water spray hole spray to the sample. The sample is placed in the center of the semicircle of the pendulum. The pendulum swings 60° on each side of the vertical line, for a total of 120°. Each swing (2 × 120 °) about 4 s
Test time: 10 min continuous drenching
b. Nozzle drenching test
Test equipment: hand-held water splash test device
Specimen placement: so that the top of the test to the parallel distance between the handheld nozzle nozzle 300mm to 500mm
Test conditions: the test should be installed with the balance of the weight of the baffle, water flow for 10 L / min
Test time: calculated by the surface area of the examined sample shell, 1 min per square meter (excluding the installation area), at least 5 min
(4) IPX 4
Method name: Splash test
Test method:
a. Pendulum splash test
Test equipment and specimen placement: the same as the above IPX 3 of a paragraph;
Test conditions: except for the latter conditions, and the above IPX 3 of a paragraph are the same; spray area for the pendulum tube at the midpoint of the 90 ° arc on each side of the spray hole water spray to the sample. The sample is placed in the center of the semicircle of the pendulum. The pendulum swings 180° along each side of the vertical line, for a total of approximately 360°. Each swing (2×360°) is about 12s
Test time: the same as the above IPX 3 a (i.e. 10 min).
b. Nozzle type splash test
Test equipment and specimen placement: the same as the above IPX 3, paragraph b;
Test conditions: remove the baffle with balance weight installed on the equipment, the rest is the same as the above IPX 3 paragraph b;
Test time: the same as the above IPX 3 paragraph b, that is, according to the surface area of the examined sample shell, 1 min per square meter (excluding the installation area) at least 5 min
(5) IPX 5
Method name: Water spray test
Test equipment: the nozzle of the water jet inside diameter of 6.3mm
Test conditions: so that the test sample to the water jet distance of 2.5m ~ 3m, water flow rate of 12.5 L / min (750 L / h)
Test time: according to the surface area of the sample shell, each square meter for 1 min (excluding the installation area) at least 3 min
(6) IPX 6
Method name: strong water spray test;
Test equipment: nozzle nozzle inside diameter of 12.5 mm
test conditions: so that the test sample to the water jet distance of 2.5m ~ 3m, water flow for 100 L / min (6000 L / h)
Test time: according to the sample shell surface area, each square meter for 1 min (excluding the installation area) at least 3 min
(7) IPX 7
Method name: Short-time immersion test
Test equipment and test conditions: water immersion tank. The size of the specimen should be placed in the immersion box, the distance from the bottom of the sample to the water surface is at least 1 m. The distance from the top of the specimen to the water surface is at least 0.15 m
Test time: 30 min
(8) IPX 8
Name of the method: continuous diving test;
Test equipment, test conditions and test time: agreed by the supply and demand (buyer and seller), the severity should be higher than IPX7.

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3, our production/sales of automotive|battery|electronic equipment|waterproof harness products of outdoor equipment part of the physical picture (picture for reference only):

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4、How to buy or understand the waterproof harness products for automotive|battery|electronic equipment|outdoor equipment? ：
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