1、 What is live cleaning of electrical equipment?

Guizhou electrical equipment tells you that live cleaning technology refers to the operation of power, communication, information and other precision electrical equipment that can not be cut off, not suitable for power failure, periodic power failure and immediate recovery. Professional and technical personnel use professional instruments and tools to follow professional operation procedures, and quickly and thoroughly remove all kinds of dust, oil, moisture, salt and carbon stains on the surface and deep layer of the circuit It can eliminate the "soft fault" caused by comprehensive pollution, improve the operation safety and reliability of these equipment, restore them to the best working state, extend the service life of the equipment, and achieve the purpose of energy conservation and environmental protection.

2、 The necessity of live cleaning

1. Long term operation of power and electrical equipment

All kinds of equipment, such as steel cabinet, electric power cabinet, electric power cabinet, etc., are in the state of long-term operation, such as steel cabinet, electric power cabinet, electric power system, etc. Dust, oil, salt, metal dust, charged particles and other comprehensive pollutants in the environment accumulate and adsorb on the surface and deep layer of equipment, lead wire, connection point, components and printed circuit board over time.

2. The harm of dirt

The decrease of insulation will increase the potential safety hazard. The dust deposition in the environment often forms a layer of pollution on the surface of the equipment. The dirt includes metal particles, oil, dust and electrolytes such as acid, alkali and salt. When the dirt meets the wet environment, the conductivity of the dirt layer will be enhanced and the insulation will be reduced. Increasing the resistance will lead to overheating of the equipment. The exposed metal wire surface and the oxygen in the air will generate oxides. The high insulation resistance of these metal oxides will lead to the increase of the resistance of the contact point, which will cause the contact temperature to rise and aggravate the oxidation in the working process. If it is serious enough, it will cause the phenomenon of ignition. It can cause discharge and cause safety accident.

In the vicinity of the equipment, the micro dust is polarized or even ionized due to electrostatic effect. When the polarized dust adsorbed on the surface of charged body extends to a certain extent, it is easy to cause discharge.

Corrosion equipment, reduce equipment life

The external environment of power system equipment operation is complex, and the electrolytes such as acid, alkali and salt contained in the dirt are easy to produce various electrochemical reactions in humid environment, resulting in corrosion and damage to the equipment. Reduce the stability of precision equipment.

With the extensive use of precision equipment and instruments, the micro circuit caused by the surface, deep layer and various parts of components and printed circuit board will lead to the instability of precision equipment and lead to problems that can not be expected and checked.

3、 Problems of traditional cleaning methods

After people found out the harm of dust to the equipment, they began to use various ways to clean the interior of electronic equipment. However, the traditional cleaning and maintenance methods are quite backward: blowing with "leather tiger", brushing with a small brush, wiping with alcohol cotton ball, etc., which have low efficiency and poor cleaning effect, and also bring many bad aftereffects. Due to the corrosion of chemicals, circuit boards and components are easy to be damaged. Manual operation may also cause destructive damage to components, and the safety is not guaranteed. Moreover, many hidden parts cannot be touched and pollutants can not be completely removed. The workload of equipment maintenance is very heavy. If the cleaning is not clean, the cleaning cycle of the equipment is shortened and the maintenance cost is higher.

It is very necessary to carry out regular cleaning and maintenance of power equipment (there are clear requirements in the management regulations of power equipment maintenance), but the traditional maintenance methods can not completely remove all kinds of comprehensive pollutants, and the workload is large, the cycle is long, and the efficiency is low.

At the same time, the use of non professional cleaning agents and cleaning equipment is also easy to cause safety hazards to the staff in the cleaning process.

4、 How to ensure the safety of live cleaning

Safety is the primary condition for the implementation of live cleaning. Ensuring the safety of personnel and equipment is the primary and most important task of live cleaning. The company ensures the safety of live cleaning from the following aspects:

1. Product safety assurance

2. Safety guarantee of tools and instruments

3. Technical service personnel support

4. Process safety guarantee

5. Guarantee of production organization measures

5、 Technical requirements for live cleaning agent

1. Safety performance

No flash point, no combustion, no condensation and no ice crystal effect during cleaning;

2. Electrical performance

The results show that the withstand voltage strength is more than 35kV / 2.5mm, the insulation resistance is more than 10000 megohm, and the dynamic insulation value is more than or equal to 10000 megohm;

3. Corrosion performance

It has no corrosion to metal and plastic, fast volatilization, no residue and neutral pH value

4. Cleaning capacity

The ability of decontamination is strong;

5. Environmental performance

There are 6 kinds of harmful substances, such as non-toxic, tasteless, ODS free and heavy metal free.

6、 Economic benefit analysis of electric power equipment cleaning with electric line

1. Prolong the service life of the equipment

After electrified cleaning, the pollutants on the surface and deep layer of the equipment are removed, which can avoid shortening the service life of the equipment due to high temperature; at the same time, it can also avoid shortening the service life of the equipment due to the corrosion of the equipment due to pollution, prolong the use of the equipment and reduce the cost of the enterprise.

2. Avoid economic loss caused by power failure

The live line cleaning method can be used to clean and maintain the equipment without power failure, which can avoid the loss caused by the shutdown of the enterprise due to the power failure and the damage to the equipment caused by the traditional way;

3. Improve equipment operation efficiency

Due to the removal of pollutants, the equipment can operate in the best state and improve the operation efficiency of the equipment.