WO2023143543A1

WO2023143543A1 - Maintenance method and maintenance oil for circuit breaker and knife switch

Info

Publication number: WO2023143543A1
Application number: PCT/CN2023/073628
Authority: WO
Inventors: 覃东明
Original assignee: 覃东明
Priority date: 2022-01-25
Filing date: 2023-01-28
Publication date: 2023-08-03
Also published as: CN114540104A

Abstract

The present invention provides a maintenance method and maintenance oil for a circuit breaker and a knife switch, a maintenance method and maintenance oil for various wiring piles, wiring terminals, wire ends and wire terminals in a circuit system, a maintenance method and maintenance oil for a circuit board, and a maintenance method and maintenance oil for an electrical appliance. The common point is that a better formula of the oil comprises a liquid oily substance composed of barium petroleum sulfonate, zinc naphthenate, benzotriazole and a thiadiazole derivative. The viscosity of the maintenance oil at 40°C is greater than or equal to 17 mm2/s. Preferably, base oil used in the maintenance oil is at least one of PAO, TMT and POE. The present invention is particularly suitable for occasions such as wiring piles, wire ends and circuit boards in the field of electrical appliances, which have a plurality of metals needing to be maintained together at the same time, is particularly suitable for the maintenance of copper, aluminum and iron as well as respective alloys thereof, and has the advantages of clear use, good effect, convenient filling and long maintenance time.

Description

A kind of circuit breaker, knife switch maintenance method and maintenance oil

technical field

The invention relates to a maintenance method and maintenance oil for various metals in various devices, wires, mechanisms and appliances of a circuit system, and belongs to the field of antirust lubricating oil. The lubricating oil used for the anti-rust lubrication of ordinary machinery is improved and then used in the maintenance of circuit wiring piles and the like.

Background technique

When using high-power electrical appliances such as electric frying pans, electric ovens, and electric water heaters in daily use, due to the large current, usually the temperature of the wires will rise to some extent. , because the wire insulation layer has been peeled off, it will cause direct contact with the atmosphere, even in the case of a casing (such as a knife switch casing), over time, under the action of temperature and atmospheric oxygen, the wire head and wiring pile will be oxidized and corroded , thus forming a high resistance oxide layer. This situation will cause the temperature of the wiring part to rise, which will then promote the growth of a thicker oxide layer, and then the temperature rise will be higher. This is a vicious circle process that eventually leads to burnout of circuit equipment. If the post wiring system is protected, the service life will be extended. But in reality, few people maintain the wiring system of the wiring pile, as if it is a matter of course to simply (without any maintenance) connect the wires to the wiring pile. One of reason is that there is no such definite maintenance article of purpose on the market, promptly does not have on the market the special-purpose maintenance oil that is specially used in wiring pile class, as lacking a kind of circuit knife switch maintenance oil of the present invention.

Some electrical appliances that work outdoors, such as surveillance cameras, sometimes need to work in a very harsh environment (high temperature and high humidity, such as outdoors in summer near the equator of the earth) for a long time. At this time, the circuit board usually powders in less than a year. Corrosion, the electronic components on the circuit board are either corroded or broken, or the solder feet are corroded and broken. On the circuit board, there are iron solder feet of electronic components, copper wire soldering/pressing joints, solder joints of tin material and many other metals. This requires the curing agent to have a good curing effect on all kinds of different metals, and has no or negligible effect on the electrical signal of the circuit board.

In the wire terminal system (terminal terminal assembly), there are also cases where multiple metals need to be maintained at the same time. Maintenance products cannot only protect a certain metal. For example, in the wiring pile system, the wires are aluminum-based and copper-based; the wiring pile has a copper-based main body and iron-based crimping and compression bolts. Although the crimping bolts are not directly conductive, iron bolts are also very easy to oxidize and rust, and iron embroidery can promote the oxidation and corrosion process of the entire wiring pile system. Therefore, maintenance products must have a good protection function for every metal that may appear in the entire wiring pile wiring system. Therefore, the maintenance products are required to have a good maintenance effect on all kinds of metals, especially copper, aluminum, iron, and their respective alloys. The liquid and oily protective products on the market for maintenance of electrical appliances have limited protection against many different types of metals.

Circuit equipment also requires as low maintenance times as possible, and life-long maintenance-free is the goal pursued. For example, outdoor surveillance cameras, leakage protectors, etc., it is very cumbersome to maintain only once: a series of tasks such as climbing, dismantling, etc., so it needs to be avoided as much as possible.

A traditional method is to use a multi-purpose rust-removing and loosening oil agent (such as WD-40) for maintenance, but this type of oil has a short curing time and evaporates in about a month, and this type of oil has insufficient maintenance ability for various metals , these problems were at least prior to the filing date of the present invention. The maintenance oil of the present invention can use at least one of synthetic oil TMT and POE as the base oil of the maintenance oil, which can greatly reduce the number of maintenance and achieve the goal of life-long maintenance-free as much as possible.

Also having a common practice is to adopt the method for smearing vaseline to protect thread ends and wiring posts, but pure vaseline has limited protective ability to metal; vaseline is greasy, and filling is inconvenient.

Another method is to consider using liquid oily contact maintenance oil on the market for maintenance. As the name implies, the contact maintenance oil is mainly used for the maintenance of the two contacts of the electrical contacts, that is, the focus is on the maintenance of copper and silver systems. Although some such oils have a slightly longer curing time, they still have not reached the level of protection for various metals. Good level of maintenance ability; contact oil viscosity is low, only focus on cleaning and cleaning; there is no clear statement in the contact oil manual that it can be used for the maintenance of the wiring pile wiring system, that is, there is no clear statement in the product manual that the contact oil can be used It is confusing to use it for the maintenance of wiring pile wiring system. On the other hand, most of the electrical appliances commonly used in daily life are electrical appliances that do not require electrical contacts to be live and frequently broken and closed. That is, contact oil is not necessary in daily use, and it is more of an industrial product.

technical solution

In order to solve the problems or improvement needs in the background technology, the present invention provides a circuit breaker, a knife switch maintenance method and maintenance oil, which can have a good effect on various metals in the electrical appliances and electrical equipment of the circuit system. Conservation, especially for copper, aluminum, iron, and their respective alloys. Can provide long-life conservation. It can be used for plugs (male or female), solder feet of electronic components (soldered or unsoldered), wiring piles, wire heads, sockets (male or female), solder joints, wires or plugs on electrical equipment or electrical appliances. Metal welding spots, metal hinges, and even various fixing and fastening metal parts on electrical appliances or electrical appliances such as metal screws and other metals for maintenance.

The "maintenance oil" referred to in the present invention can also be referred to as any one of maintenance oil, protective oil, maintenance oil and anti-rust oil.

The object of the present invention is achieved through the following technical solutions.

A kind of circuit breaker, knife switch maintenance oil, its formula contains (petroleum sulfonate barium, synthetic barium sulfonate, two free naphthalene sulfonate barium, heavy alkylbenzene sulfonate barium, N-oleic acid group sarcosine one of octadecylamine salts) and (zinc naphthenate, dodecenyl succinate, enyl succinate, 2-aminoethyl heptadecenyl imidazolinium dodecenyl succinate , octadecylamine oleate, heptadecenyl imidazolidinyl succinate, a mixture of zinc naphthenate and heptadecenyl imidazolidinyl succinate, one of imidazolinium alkyl phosphate ) and (one of the oil-soluble copper and copper alloy antirust agents for lubricating oil); the copper and copper alloy antirust agents include benzotriazole, benzotriazole fatty acid Amine salt, tolyltriazole, mercaptobenzothiazole, mixture of tolyltriazole and mercaptobenzothiazole, benzotriazole octadecylamine, benzotriazole dicyclohexylamine, N-acetyl benzotriazole; the viscosity of this curing oil at 40°C is ≥17mm²/s; the circuit breaker and knife switch maintenance oil does not only refer to the circuit breaker and knife switch It refers to all kinds of metal parts on the circuit breaker and knife switch that are in contact with the metal conductors that transmit electric energy or electrical signals when the circuit breaker and knife switch are in normal working condition. At least one of the parts or more than one position, or the maintenance of the metal conductor itself that transmits electrical energy or electrical signals, including the maintenance oil for the maintenance of bare wire ends; the metal parts, including the installation tights made of metal Firmware; the installation fasteners include bolts, screws, and nuts; the maintenance refers to anti-corrosion maintenance; the various metal parts include metal conductors that are in indirect contact with metal conductors that transmit electrical energy or electrical signals When parts are in indirect contact, the metal in indirect contact refers to the metal with a resistance between the indirect contact metal and the metal conductor between ≥0Ω and ≤1000Ω.

Preferably, on the basis of 0012, this maintenance oil has an added component: one of the oil-soluble metal deactivators for lubricating oil; the deactivators include benzotriazole derivatives and thiadiazole derivatives.

Preferably, the base oil of the maintenance oil described in 0012 or 0013 is at least one of PAO, TMT, and POE.

A maintenance method for a circuit breaker and a knife switch: use the maintenance oil described in one of 0012, 0013, and 0014 to treat the circuit breaker and the knife switch when the circuit breaker and the knife switch are in normal working condition. At least one of the parts or more than one position of all the various metal parts that are in contact with the metal conductors that transmit electric energy or signals, or the maintenance of the metal conductors that transmit electric energy or signals, including the maintenance of bare wire ends Maintenance; the metal parts include metal mounting fasteners; the installation fasteners include bolts, screws, and nuts; the maintenance refers to anti-corrosion maintenance; the various metal parts include Metal conductors that transmit electrical energy or electrical signals have indirect contact metal parts. In indirect contact, indirect contact metals refer to metals with a resistance between the indirect contact metal and the metal conductor that is ≥0Ω and ≤1000Ω.

In a circuit system, the maintenance oil for various wiring piles, wiring terminals, wire heads, and wire terminals is the same as 0012 or 0013 or 0014, the difference is that the name "circuit breaker, knife switch" is changed to "circuit In the system, various wiring piles, terminal blocks, wire heads, and wire terminals".

A maintenance method for various wiring piles, wiring terminals, wire heads, and wire terminals in a circuit system: use 0016 curing oil to ensure that various wiring piles, wiring terminals, wire heads, and wire terminals work normally in the circuit system At least one part or more than one position of all the various metal parts in the circuit system in the circuit system in contact with the metal conductors that transmit electric energy or signals, or The maintenance of the metal conductor itself that transmits electric energy or electrical signals includes the maintenance of the bare wire end of the wire; the metal parts include metal mounting fasteners; the mounting fasteners include bolts, screws, and nuts; The maintenance refers to anti-corrosion maintenance; the various metal parts include metal parts that are in indirect contact with metal conductors that transmit electric energy or electrical signals. The metal between the metal conductors has a resistance between ≥0Ω and ≤1000Ω.

A circuit board maintenance oil, the same as 0012 or 0013 or 0014, the only difference is that the name "circuit breaker, knife switch" is changed to "circuit board".

A circuit board maintenance method: use the maintenance oil described in 0018 to treat at least one of all the various metal parts on the circuit board that are in contact with the metal conductors that transmit electric energy or electric signals when the circuit board is in normal working condition or more than one location, or to maintain the metal conductor itself that transmits electric energy or electrical signals, including the maintenance of bare wire leads; the metal parts include metal mounting fasteners; the mounting fasteners, Including bolts, screws, and nuts; the maintenance refers to anti-corrosion maintenance; the various metal parts include metal parts that are in indirect contact with metal conductors that transmit electric energy or electrical signals. It refers to the metal between the indirect contact metal and the metal conductor with a resistance between ≥0Ω and ≤1000Ω.

An electrical equipment maintenance oil, the same as 0012 or 0013 or 0014, the only difference is that the name "circuit breaker, knife switch" is changed to "electrical equipment"; the electrical equipment maintenance oil includes the components for discrete electrical equipment The maintenance oil for maintenance; the maintenance oil for electrical equipment does not include the maintenance oil for the maintenance of various parts inside the chemical electric energy storage device.

A maintenance method for electrical equipment: use the maintenance oil described in subparagraph 0020 to treat at least one of all the various metal parts on the electrical equipment that are in contact with the metal conductors that transmit electrical energy or electrical signals when the electrical equipment is in normal working condition or more than one location, or to maintain the metal conductor itself that transmits electric energy or electrical signals, including the maintenance of bare wire leads; the metal parts include metal mounting fasteners; the mounting fasteners, Including bolts, screws, and nuts; the maintenance refers to anti-corrosion maintenance; the various metal parts include metal parts that are in indirect contact with metal conductors that transmit electric energy or electrical signals. Refers to metals in indirect contact with metals and metal conductors with a resistance between ≥0Ω and ≤1000Ω; the maintenance of electrical equipment includes the maintenance of discrete electrical equipment components; the maintenance of electrical equipment does not include maintenance of chemical electrical energy Maintenance of various parts inside the storage device.

Beneficial effect

The present invention is originally designed to be used for the maintenance of all kinds of metals on the electric knife switch wiring pile of the household 220V alternating current. It has a long maintenance life and reduces the number of maintenance; it has a good maintenance effect on various metals; it prolongs the service life of electrical appliances; the insulator is safe to use, and the electric strength is generally about 6kV±15%/mm, and it is energized with 1000V DC Generally, the measured resistivity is about 1.5-2.5×10⁷Ω.m. In the 220V AC environment, there will be no short circuit or leakage. It is very suitable for the maintenance of various AC and DC electrical appliances/materials below 500V; easy to use; It has no influence on welding processes such as soldering; the application is relatively clear; the present invention can also exert good antirust and anticorrosion effects in other fields such as circuit boards, plugs and sockets.

In an actual case, when the surveillance camera using 12V power supply works in an outdoor high-temperature and high-humidity environment, when the circuit board is not coated with the curing oil of the present invention, the circuit board components, solder feet, and solder joints will be pulverized and corroded in less than a year. And the circuit board is only once after smearing the maintenance oil of the present invention, and the camera has been used continuously for three years, and the circuit board still has no pulverization and corrosion phenomenon. During this period, the monitoring camera works normally, and there is no signal distortion. The only thing to pay attention to is that the pickup (microphone) cannot penetrate into the curing oil, otherwise the microphone will be drowned, resulting in the microphone not working and malfunctioning. Another actual case is that when the household electric switch switch is not smeared with the curing oil of the present invention for maintenance, it usually burns out after only half a year of use; while the switch switch that has only been smeared with the curing oil of the present invention for maintenance once, it is used continuously for several days. Years can still be used normally.

When the curing oil of the present invention adopts the oil containing silicone oil (generally phenyl silicone oil) as the base oil, the curing oil of the present invention can have a better effect on the maintenance of low-voltage and low-power electrical appliances (such as electrical appliances below 12V6W), because Silicone oil has higher resistivity and less signal loss; the harm of electric flashover and electric ablation caused by low-power electrical appliances is small.

There are usually iron screws that compress the wires on the wiring posts. If the iron screws are used for anti-corrosion maintenance with general anti-rust oil, the composition of the general anti-rust oil is unknown, and even contains hard film ingredients. , due to contact with the transmission conductor, it will flow into the wiring pile or even other parts, resulting in poor contact and other phenomena. Therefore, when maintaining such parts, it is required to use special curing oil to maintain all the metals in contact with the transmission conductor. If adopt curing oil of the present invention to carry out maintenance, can avoid above problem.

The reasons why metals in indirect contact with electrical conductors need to be cured are also based on the reasons stated in 0025. Metal parts that are in indirect contact with the transmission conductor generally do not transmit electrical energy or electrical signals, and mainly serve as supports for support.

Three types of liquid oily contact oils from different manufacturers were randomly purchased in the market for comparative testing with the curing oil obtained in Example 1 of the present invention. Under the same test conditions, in the test of the protective ability of iron, the samples protected by three contact oils have all been rusted, and the samples of the maintenance oil of the present invention have no rust; the test of the protective ability of copper, The curing oil sample of the present invention is better than two of the three contact oils, slightly better than or equal to one of them.

Embodiments of the present invention

The embodiments described below are only preferred specific embodiments of the present invention, and are not intended to limit the present invention in other forms.

The following embodiment 1 is: 1. a circuit breaker, knife switch maintenance oil; 2. in a circuit system, various wiring piles, terminal blocks, wire ends, wire terminals maintenance oil; 3. a circuit board maintenance oil 4. a kind of maintenance oil for electrical equipment; the embodiment of each maintenance oil in the above 4 maintenance oils, that is, the embodiments of each maintenance oil in the above 4 maintenance oils are all the same, all being embodiment 1.

Following embodiment 2 is: A. a kind of maintenance method of circuit breaker, knife switch; B. in a kind of circuit system, the maintenance method of various wiring piles, terminal blocks, wire ends, wire terminals; C. a kind of The maintenance method of circuit board; D. a maintenance method of electrical equipment; the embodiment of each maintenance method in above 4 kinds of maintenance methods. If there is a stated part in the embodiment that exceeds the maintenance scope of a certain maintenance method, then this part is invalid. Such as A is suitable for the statement of a and b and c and e in embodiment 2; B is suitable for the statement of a and c and e in embodiment 2; C is suitable for a and b and c and d and e and in embodiment 2 The statement of f; D is suitable for the statements of a and b and c and d and e and f in Example 2.

Example 1: Diisooctyl diphenylamine 1%, 0.5 % thioether-containing polymer phenolic antioxidant, 1.5 % synthetic calcium sulfonate with low base value (T104), benzotriazole fatty acid amine salt (T406 ) 0.2%, barium petroleum sulfonate (T701) 3%, thiadiazole derivatives (T561) 0.05%, zinc naphthenate (T704) 3%, benzotriazole (T706) 0.25%, trimellitic acid Trimellitate (TMT)) 90.5%; the percentages mentioned are all weight percentages; the viscosity of trimellitate (TMT) is 70-75mm²/s at 40°C. Preparation method: Pour all the ingredients into a blending kettle, stir to 75°C while raising the temperature, fully dissolve the solid ingredients at this temperature and stir the ingredients evenly. Usually, after heating up to 75°C, stir and mix for a few minutes at most; finally cool down to room temperature naturally, and pass through a filter with a pore size of ≤23 microns to obtain this product.

Example 2: When needed: ①. Circuit circuit breaker, sword switch switch for maintenance; ②. Various wiring piles, wiring terminals, wire heads, and wire terminals in the circuit system are maintained; ③. Circuit board for maintenance; ④ . Electrical equipment is maintained; when any one of the above 4 items meets the requirements of this specification for metal parts or positions to provide maintenance and protection, a. Use/use the curing oil of the present invention obtained in Example 1 to provide corresponding metal parts or positions Conservation and protection. The method is to smear the curing oil of the present invention on the corresponding parts or parts, and cover the corresponding parts or parts, preferably without dripping; To achieve the level of only wetting and only oil stains at the contacts, so as to reduce the amount of smearing, so as to achieve the effect of providing maintenance and reducing arc generation; c. In contacts that do not need live opening and closing work, such as plugging and unplugging male and female Head/cable, do not need to be wiped dry; d. Another thing to pay attention to is that this product cannot enter the pickup, that is, the microphone, so as to avoid the microphone from being "drowned"; e. The curing oil in this embodiment is resistant to The electric strength is 6kV±15%/mm, and the resistivity is 1.5-2.5×10⁷Ω.m. Comply with safe electricity regulations. Before using this product, it must be proved safe and feasible through calculation and experimental methods, so as to avoid breakdown and leakage , short circuit, signal distortion, etc. Due to the large number of electrical appliances, the electrical appliances cannot work normally after normal use of this oil for maintenance of parts, which means that this oil is not suitable for the maintenance of such parts. You can try the mode, which is also the common process of general new product production: try first and then use mode); f. When using this product on the circuit board, it is required that the components on the circuit board are well sealed, especially the capacitor, to avoid damage to the electronic circuit board. The original parameters of the component have an impact.

Claims

A kind of circuit breaker, knife switch maintenance oil, it is characterized in that, its formula contains (petroleum sulfonate barium, synthetic barium sulfonate, two radical naphthalene sulfonate barium, heavy alkylbenzene sulfonate barium, N-oil One of the octadecylamine salts of acid group sarcosine) and (zinc naphthenate, dodecenyl succinate, alkenyl succinate, 2-aminoethyl heptadecenyl imidazolinium dodecenyl Succinate, octadecylamine oleate, heptadecenyl imidazolinenyl succinate, mixture of zinc naphthenate and heptadecenyl imidazolinenyl succinate, imidazoline alkyl phosphate salt) and (one of the oil-soluble copper and copper alloy antirust agents for lubricating oil); the copper and copper alloy antirust agents include benzotriazole, benzotriazole Triazole fatty acid amine salt, tolyltriazole, mercaptobenzothiazole, mixture of tolyltriazole and mercaptobenzothiazole, benzotriazole octadecylamine, benzotriazole di Cyclohexylamine, N-acetyl benzotriazole; the viscosity of this maintenance oil at 40°C is ≥17mm²/s; the maintenance oil for circuit breakers and knife switches not only refers to circuit breakers, The wiring piles and bare wire ends on the knife switch refer to all metal conductors on the circuit breaker and knife switch that are in contact with the metal conductors that transmit electric energy or electrical signals when the circuit breaker and knife switch are in normal operation. At least one part or more than one position of various metal parts, or the curing oil for curing the metal conductor itself that transmits electric energy or electrical signals, including the curing oil for curing the bare wire ends of electric wires; the metal parts , including installation fasteners made of metal; the installation fasteners include bolts, screws, and nuts; the maintenance refers to anti-corrosion maintenance; Metal conductors have metal parts that are in indirect contact. In indirect contact, the indirect contact metal refers to the metal with a resistance between the indirect contact metal and the metal conductor with a resistance between ≥ 0Ω and ≤ 1000Ω.
According to claim 1, a maintenance oil for circuit breakers and knife switches is characterized in that, the same as claim 1, the difference is that the composition is added: one of the oil-soluble metal passivators for lubricating oil; the passivation Agents include benzotriazole derivatives, thiadiazole derivatives.
A maintenance oil for circuit breakers and knife switches according to claim 1 or 2, characterized in that the base oil of the maintenance oil is at least one of PAO, TMT and POE.
A maintenance method for a circuit breaker and a knife switch, characterized in that the maintenance oil described in any one of claims 1 to 3 is used to protect the circuit breaker and the switch when the circuit breaker and the knife switch are in normal working condition. At least one of the various metal parts on the knife switch that is in contact with the metal conductors that transmit electrical energy or electrical signals or at least one position, or the maintenance of the metal conductors that transmit electrical energy or electrical signals, including wires The bare wire head is maintained; the metal parts include metal installation fasteners; the installation fasteners include bolts, screws, and nuts; the maintenance refers to anti-corrosion maintenance; the various metal Parts include metal parts that are in indirect contact with metal conductors that transmit electrical energy or electrical signals. In indirect contact, the indirect contact metal refers to the metal with a resistance between the indirect contact metal and the metal conductor that is ≥0Ω and ≤1000Ω.
In a circuit system, the maintenance oil for various wiring piles, wiring terminals, wire heads, and wire terminals is characterized in that it is the same as claim 1 or 2 or 3, and the difference is only that the name "circuit breaker, knife switch" , changed to "in the circuit system, various wiring posts, terminal blocks, wire heads, and wire terminals".
A maintenance method for various wiring posts, wiring terminals, wire ends, and wire terminals in a circuit system, characterized in that the maintenance oil of claim 5 is used to prevent various wiring posts, wiring terminals, and wires from being used in the circuit system. At least one of all the various metal parts on the various wiring posts, terminal blocks, wire heads, and wire terminals in the circuit system that are in contact with the metal conductors that transmit electrical energy or electrical signals or More than one location, or the maintenance of the metal conductor itself that transmits electric energy or electrical signals, including the maintenance of the bare lead of the wire; the metal parts include metal mounting fasteners; the mounting fasteners include Bolts, screws, and nuts; the maintenance refers to anti-corrosion maintenance; the various metal parts mentioned above include metal parts that are in indirect contact with metal conductors that transmit electric energy or electrical signals. The most important is the metal between the indirect contact metal and the metal conductor with a resistance between ≥ 0Ω and ≤ 1000Ω.
A circuit board maintenance oil is characterized in that it is the same as claim 1 or 2 or 3, and the difference is only that the name "circuit breaker, knife switch" is changed to "circuit board".
A circuit board maintenance method, characterized in that, using the maintenance oil according to claim 7, at least one of all the various metal parts on the circuit board that are in contact with the metal conductors that transmit electric energy or electric signals when the circuit board is in normal operation One of a kind of parts or more than one position, or the maintenance of the metal conductor itself that transmits electric energy or electrical signals, including the maintenance of bare wire ends of electric wires; the metal parts include metal mounting fasteners; the installation Fasteners include bolts, screws, and nuts; the maintenance refers to anti-corrosion maintenance; the various metal parts include metal parts that are in indirect contact with metal conductors that transmit electric energy or electrical signals. The metal in indirect contact refers to the metal with the resistance between the indirect contact metal and the metal conductor between ≥0Ω and ≤1000Ω.
An electrical equipment maintenance oil, characterized in that it is the same as claim 1 or 2 or 3, the difference is only that the name "circuit breaker, knife switch" is changed to "electrical equipment"; the electrical equipment maintenance oil includes The maintenance oil for the maintenance of discrete electrical equipment components; the maintenance oil for electrical equipment does not include the maintenance oil for the internal parts of the chemical electric energy storage device.
A maintenance method for electrical equipment, characterized in that the maintenance oil described in claim 9 is used to treat all metal parts on the electrical equipment that are in contact with metal conductors that transmit electric energy or electrical signals when the electrical equipment is in normal operation. At least one of the parts or more than one position, or the maintenance of the metal conductor itself that transmits electrical energy or electrical signals, including the maintenance of the bare wire head of the wire; the metal parts include metal mounting fasteners; all The installation fasteners mentioned above include bolts, screws, and nuts; the maintenance refers to anti-corrosion maintenance; the various metal parts include metal parts that are in indirect contact with metal conductors that transmit electric energy or In this case, the metal in indirect contact refers to the metal with a resistance between the indirect contact metal and the metal conductor between ≥0Ω and ≤1000Ω; the maintenance of electrical equipment includes the maintenance of discrete electrical equipment components; the maintenance of electrical equipment , does not include the maintenance of various parts inside the chemical electrical energy storage device.