Regarding the protection level of the motor, the explosion proof level of the motor is divided

Dustproof and waterproof are not the same concept, of course, when underwater, it can be waterproof, and the level of waterproof is high, and of course it is good to be dustproof.

But it's not the same when you're on the water.

If I add a cover with a lower opening to an ordinary motor, my waterproof level will not be improved, but my dustproof level may not be improved!

IP rating (dust and water resistance) definition.

The IP rating system, which provides a way to classify products according to the degree of dust, water and impact resistance of electrical equipment and packaging, is recognized by most European countries and declared in the IED 529 (BS EN 60529:1992) IP Code.

The protection level is mostly expressed by two numbers followed by IP, and the number is used to clarify the level of protection.

The first number indicates how much a device is resistant to fine dust, or how well people are protected from hazards in a sealed environment.

The second word An indicates the degree to which the device is waterproof.

The number is the first digit – dustproof and the second digit is waterproof.

0 No protection No protection.

1 Resistant to solids over 50mm. For example, accidental hand touch can withstand vertical falling water drops.

2. Resistant to solid substances with a diameter of more than 12 mm in diameter and a length of no more than 80 mm. For example, the fingers can withstand a direct spray of water at a vertical angle of 15°.

3 Resistant to solid substances with diameters exceeding them. For example, tools or wires can withstand direct sprays of water at a vertical angle of 60°.

4 Resistant to solid substances with diameters exceeding them. For example, small wires can withstand splashes from any direction – allowing for limited access.

5 Dust-proof, limited access (no harmful buildup). Withstands low-pressure jets of water from any direction – allowing for limited access.

6 Dust is difficult to enter and completely dustproof. Withstands powerful jets of water from any direction – allowing for limited access.

7 Not applicable. Allow short drops into deep water for up to 30 minutes.

8 Not applicable. It can withstand long-term immersion under pressure.

At present, there are few laboratories that can carry out dustproof and waterproof tests, such as environmental reliability and electromagnetic compatibility test service centers, aerospace environmental reliability test and testing centers, etc.

The explosion-proof grades of the motor are as follows:

The unprotected motor is not tested without special protection, but it should comply with the regulations.

Motors that protect against solids larger than 50 mm prevent large areas of the human body from accidentally touching or approaching live or rotating parts of the shell. It can prevent solid foreign matter with a diameter of more than 50 mm from entering the shell.

Motors that protect solids larger than 12 mm prevent solid foreign objects larger than 12 mm in diameter from entering the shell.

Larger-than-solid motors prevent larger-diameter tools or wires from touching or approaching live or rotating parts of the shell.

Motors that protect solids larger than 1 mm prevent wires or strips with a diameter or thickness greater than 1 mm from touching or approaching live or rotating parts within the shell.

The dust-proof motor should withstand splashing water in any direction without harmful effects.

The explosion-proof grade of the motor is divided into 123 levels, which can be according to your needs. Buy according to your requirements.

The explosion-proof level of the motor is composed of three parts: 1. The division of the safety level of different electrical equipment in the ** gas area (zone 0, zone 1, zone 2). 2. The classification of gas or vapor mixture grades is divided into three types: A, B and C, and the division of these grades is mainly based on the maximum test safety clearance (MESG) or the minimum ignition current (MICR).

3) The division of the temperature grouping of the ignition of a certain medium. It is mainly divided into T1 450 T, T2 300 T 450, T3 200 T 300, T4 135 T 200, T5 100 T 135, T6 85 T 100.

The protection level of the motor is divided into: waterproof level, explosion-proof level, and insulation level. Your grading is still relatively strict and professional.

1) The division of the safety level of different electrical equipment in the ** gas area (zone 0, zone 1, zone 2). For example, the selection of rotating electrical machines is divided into flameproof type (code D), positive pressure type (P), increased safety type (E), and non-spark type (N).

2. The classification of gas or vapor mixture grades is divided into three types: A, B and C, and the division of these grades is mainly based on the maximum test safety clearance (MESG) or the minimum ignition current (MICR).

3) The division of the temperature grouping of the ignition of a certain medium. It is mainly divided into T1 450 T, T2 300 T 450, T3 200 T 300, T4 135 T 200, T5 100 T 135, T6 85 T 100.

The protection level of the motor is IP23, which means that it can prevent solid foreign objects with a diameter greater than 12mm from entering the shell, and can prevent fingers from touching the live or moving parts of the shell, and the water within the range of 60o angles with the plumb line should not directly enter the inside of the motor.

The first digit 2 represents: protection against solids larger than 12mm, can prevent solid foreign objects with a diameter greater than 12mm from entering the shell. It prevents fingers from touching the charged or moving parts of the case.

The second digit of the number 3 represents: drip-proof , dripping water within a range of 15o angles with the plumb line, which should not directly enter the inside of the motor.

The first digit) is the rating and definition of the first digit of the protection level Abbreviated as the definition.

0 Unprotected There is no specialized protection.

1. Protect against solid bodies larger than 50mm from entering the shell. It prevents a large part of the human body (such as a hand) from accidentally or accidentally touching the charged or moving parts of the shell, but does not prevent conscious access to these parts.

2. Protect solids larger than 12mm from entering the shell with a diameter of 12mm. It prevents fingers from touching the charged or moving parts of the case.

3. Protect solids larger than the diameter of the solid foreign matter can prevent the diameter of the solid foreign matter into the shell. It can prevent tools and metal wires with large thickness or diameter from touching the charged or moving parts of the bulk shell.

4. Protect solids larger than 1mm from solid foreign matter with a diameter greater than 1mm from entering the shell. It can prevent wires or strips with a diameter or thickness greater than 1mm from touching the live or running parts of the shell.

5. Dustproof It can prevent dust from entering to the extent that it affects the normal operation of the product, and completely prevents it from touching the live or moving parts in the shell.

6 Dust Tightness It can completely prevent dust from entering the shell and completely prevent it from touching the live or moving parts of the shell.

The insulation grade of an electric motor refers to the heat resistance level of the insulating material used in it.

The insulating material of the motor is mainly made of mica, asbestos, and glass filament by organic glue glue or impregnation. The insulation grade of the motor is closely related to the insulation material used, and the better the insulation material, the higher the insulation grade.

According to the ability of different insulating materials to withstand high temperatures, 7 allowable maximum temperatures are specified, which are arranged according to the temperature size: y, a, e, b, f, h and c. Their permissible operating temperatures are:

and 180 or more.

For example, Class B insulation indicates that the insulation used in this generator has a heat resistance temperature of 130. When the generator is working, the user should ensure that the generator insulation material does not exceed the temperature to ensure the normal operation of the generator.

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Questions. The 3C certified insulation class of the motor is B

The F-class motor is also 80K according to the B-class assessment; According to the F-level assessment is 105K, according to the corresponding standards, the long-term working temperature of the B-grade insulating material is 130, the F-level can withstand 155 for a long time, and the maximum ambient temperature of the motor is calculated according to the actual operation of the motor 40, the allowable working temperature of the motor is: 120 (40 + temperature rise 80) <130 at the B level; 145 at F level (ambient temperature 40 + temperature rise 105) < 155. The insulating material is divided into Y, A, E, B, F, H and C according to the heat resistance, and the allowable temperature is above.

When the motor adopts Class B insulation, the temperature rise limit (resistance method) of the stator winding should not exceed 80K; When the motor adopts F-class insulation, the temperature rise limit of the stator winding should not exceed 105K; The temperature rise limit of the collector ring of the YR motor (thermometer method) should not exceed 80K;

Questions. The product grade is f

This is the answer to the first.

The insulation of the motor refers to the heat resistance level of the insulating material used, and the insulation temperature is divided into grades: Class A, Class E, Class B, Class F, Class H, Class B, Allowable value: maximum allowable temperature 130, winding temperature rise limit 80, performance reference temperature 100

Questions. Is there a problem that the insulation grade on the certificate is not the same?

Is it different from the one on the motor and the one on the product certificate?

Questions. The 3C certification level is B, and the product level is F

Motor 3C certification insulation class B product insulation class F

Half is based on the motor.

The smallest is the standard, the product is fine, but it is deliberately reported to a higher place when the merchant declares.

Questions. Is the insulation grade B of the motor 3C certification certificate recognized as the production insulation grade F?

Only a small certification, F grade is higher than B, if you are sure that it is the same product certificate, then this is the merchant's problem.

Since 2015, Ganzhou Shengfu Motor has been focusing on the R&D, sales and service of underwater stepper motors, waterproof DC servo motors, underwater waterproof AC servo motors, high-power brushless DC motors, AC permanent magnet synchronous motors, brushless DC motors, hybrid stepper motors, DC servo motors, AC servo motors, AC permanent magnet synchronous servo motors, waterproof IP68 electric drums, waterproof hub motor series products, and precision planetary reducers. Now the company has advanced production equipment, testing equipment, perfect production process, has a strong and powerful product development, design elite technical team, is committed to the development of the Chinese national industrial power as the successor, with the spirit of Chinese craftsmen, intelligent manufacturing of domestic and foreign underwater waterproof stepper motors, waterproof motors, underwater IP68 motors, diving IP68 motors, seawater motors, deep-water motors, marine motors, stainless steel underwater motors.

The importance of the degree of protection of the motor.

Since 2015, Ganzhou Shengfu Motor has been focusing on the R&D, sales and service of underwater seawater stepper motors, waterproof DC servo motors, underwater waterproof AC servo motors, high-power brushless DC motors, AC permanent magnet synchronous motors, brushless DC motors, hybrid stepper progression, DC servo motors, AC servo motors, AC permanent magnet synchronous servo motors, waterproof IP68 electric drum series products, and precision planetary reducers. Now the company has advanced production equipment, testing equipment, perfect production process, has a strong and powerful product development, design elite technical team, is committed to the development of the Chinese national industrial power as the successor, with the spirit of Chinese craftsmen, intelligent manufacturing of domestic and foreign underwater waterproof stepper motors, waterproof motors, underwater motors, submersible motors, seawater motors, deep-water motors, marine motors, stainless steel underwater motors.

The motor protection level includes waterproof grade, explosion-proof grade and insulation grade.

The IP (IngressProtection) protection rating system was drafted by the International Electronic Technical Commission (IEC). Electrical appliances are graded according to their dust-proof and moisture-proof characteristics.

The IP protection level is composed of two numbers, the first number indicates the level of dust removal and prevention of foreign objects intrusion of the lamp, and the second number indicates the airtightness of the lamp against moisture and waterproof intrusion, and the larger the number, the higher the protection level.

Motor classification: 1. According to the working power supply, it can be divided into DC motor and AC motor, of which AC motor is divided into single-phase and three-phase.

2. According to the structure and working principle, it can be divided into DC motor, asynchronous motor and synchronous motor. The rotor speed of an asynchronous motor is always slightly lower than the synchronization rate of the rotating magnetic field. The rotor speed of the synchronous motor is independent of the load, and the synchronization rate is always maintained.

3. According to the starting and operation modes, it can be divided into capacitor start single-phase asynchronous motor, capacitor rushing single-phase asynchronous motor, capacitor starting single-phase asynchronous motor and separate single-phase asynchronous motor.

4. According to the use classification, it can be divided into drive and control. Drive motors can be divided into electric tool motors, motors for home appliances and motors for other general small mechanical equipment. The control motor is divided into stepping, servo, speed measurement, etc. <>