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Mechanical Industry Standard of the People's Republic of China
JB/T 5896-1991
Common Insulator Terms
Issued on October 24, 1991
Implementation by the Ministry of Machinery and Electronics Industry of the People's Republic of China on October 1, 1992
Mechanical Industry Standard of the People's Republic of China
Common Insulatorsbzxz.net
1 Subject Content and Scope of Application
This standard specifies the common terms for insulators and is a supplement to GB2900.8 and GB2900.19. JB/T5896-1991
This standard is mainly applicable to insulators used in AC and DC power systems, focusing on the commonly used terms in the insulator manufacturing industry, and can be used for formulating standards, compiling technical documents, and writing and translating professional manuals, teaching materials and books. 2 Reference standards
GB2900.19
Electrical terminology Basic terminology
Electrical terminology
Insulator
High voltage test technology and insulation coordination
Electrical terminology
3 General terms and product names
3.1 General terms
3.1.1 Insulator
insulator!
Note: 1) The terminology and explanation of this clause are from GB2900.8. A device used to support and insulate a conductor. Formerly known as; barrier, electron separator.
3.1.2 Porcelain insulator Ceramic insulator Insulator made of porcelain material. 3.1.3 Glass insulator Glass insulator Insulator made of glass material. 3.1.4 Toughened glass insulator toughened glass insulator 3.1.5 Annealed glass insulator annealed glass insulator 3.1.6 Organic material insulator organic material insulator Insulator made of organic material. 3.1.7 Outdoor insulator outdoor insulator designed for use in the surrounding air at atmospheric pressure and exposed to outdoor atmospheric conditions. 3.1.8 Indoor insulator indoor insulator designed for use in the surrounding air at atmospheric pressure but not exposed to outdoor atmospheric conditions. 3.1.9 Semiconducting glaze insulator insulator with semiconductor glaze Insulator the entire surface of which is covered with semiconducting glaze. 3.1.10 Electrostatic precipitator insulator insulator for electrostatic filters designed for electrostatic precipitators. This type of insulator usually operates at a higher temperature. 3.1.11 Electric locomotive insulator insulator for clectric locomotive designed for use on electric locomotives. 3.1.12 DC insulator Approved by the Ministry of Machinery and Electronics Industry on October 24, 1991 and implemented on October 1, 1992
JB/T 5896-1991
Insulator designed for operation under DC voltage. 3.1.13 AC insulator
Insulator designed for operation under AC voltage. 3.2 Bushing Product Name
3.2.1 Divided insutatora.c.insulator
A type of outlet bushing, which consists of an upper and lower insulating sleeve, one part of which passes through the box shell and is inserted into the hole of the other part. The electrical box shell is fixed between the clamping surfaces of the upper and lower parts by nuts at the two ends of the conductive rod passing through the hole. 3.2.2 Apparatus bushing Bushing for electrical appliances. Such as lead-out bushings for electrical appliances such as transformers, switches, capacitors, mutual inductors and reactors. 3.2.3 Ceramic bushing for electrical appliances Ceramic cap and paratus bushing 3.2.4 Transformer bushing Transformer bushing Bushing for transformer lead wires.
3.2.5 Switch bushing Switchgear bushing Bushing for switchgear, such as circuit breaker and disconnector bushing. 3.2.6 Circuit breaker bushing Circuit-breaker bushing Bushing for circuit breaker lead wires.
3.2.7 Capacitor bushing Capacitor bushing Bushing for capacitor lead wires.
3.2.8 Wall bushing Wall bushing Bushing that passes through the wall of a building.
3.2.9 Ceramic wall bushing 3.2. 10
bushing
Indoor ceramic wall bushing indoor ceramic wall bushing outdoor ceramic wall bushing
outdoor ceramic wall bushing outdoor-indoor ceramic wall bushing oil impregnated paper [resin bonded paper] capacitance graded oil-oil bushing
Fully oil-impregnated bushing
Bushing with both ends immersed in insulating oil.
3.2.15 Oil-gas bushing Oil-gas bushing A bushing with one end immersed in insulating oil and the other end immersed in an insulating gas different from the surrounding air. 3.3 Line insulator product name
3.3.1 Suspension insulator set
An insulator set that is completely equipped with hardware that can suspend a single or multiple line conductors at its lower end. 1 tension insulator set
3.3.2 Strain insulator set
An insulator set that is completely equipped with hardware that can ensure the tensioning of a single or multiple line conductors. 3.3.3 Jumping insulator set Jumping insulator set An insulator set that suspends jumpers in a tension tower. This jumper refers to the connecting wire of the tensioning wires of the tension insulator set at both ends. 3.3.4 Cap and pin [long rod] insulator string Synonym: Cap and pin [long rod] insulator string 3.3.5 Ceramic [glass] cap and pin insulator 3.3.6 Anti-pollution-type ceramic [glass] insulator of the cap and pin type
ceramic cross-arm (insulator) 3.3.7
ceramic cross-arm insulator
Cap and pin insulator for ground overhead line JB/T5896-1991
Cap and pin insulator for ground overhead line insulation and support. Usually it consists of two parts: insulating component and protective spacer. The protective gap is formed by electrodes that are fixed to the insulating parts by bolts. 3.3.9 Traction insulator traction insulator An insulator used as a flexible or rigid support for overhead power traction lines. 3.4 Substation insulator Product name
3.4.1 Ceramic post insulator3.4.2 Antipoflution-type post insulator (post) insulator post
E (post) insulator stack
A post insulator assembled from two or more components. Post insulator with external fittings3.4.4 Externally glued post insulator
Post insulator with internal fittings3.4.5 Internally glued post insulator
3.4.6 Jointly glued post insulator post insulator with internal and external fittings solid-core post insulator
3.4.7 Rod-shaped post insulator
3.4.8 pedcstal post insulator 3.4.9 operating insulator
operating insulator
Insulator used to transmit the movement between components at different potentials in electrical appliances, porcelain [glass, organic material sleeve ceramicLglassorganicmateriai] envelope 3.4. 10
4 Structural elements, parts, materials and processes Structural design parameters and elements
4.1.1 Insulator sheath (skirt) sheath insulator) The protruding insulating part on the insulator rod body used to increase the distance of fertilizer electricity. The sheath can be smooth, and the lower surface of the sheath can also have one or more ribs,
Note: 1) The term adjustment clause and explanation of this clause are from GB2900.8, 4.1.2 Rib
The annular protruding part set on the insulator rod body or the lower surface of the sheath. When the insulator is installed upright, since the lower surface of the insulator is inclined downward from the edge of the ridge to the pole body, when it rains, water will flow downward from the upper surface to the pole body surface.
4.1.3 Shed inclination angle The inclination angle of the upper or lower surface of the shed to the horizontal plane. 4.1.+ Shed overhang
The length of the shed horizontally extending from the insulator pole body, 4.1.5 Shed (spacing) spacing
The distance between two corresponding points of two adjacent sheds of the same diameter. 4.1.6 Normal shed
Normal shed
A shed with a drip edge that is usually used, and its lower surface has no shuttle. 4.1.7 Open shed without dropping-cdgcacrofoil shed A shed without a drip edge and a shed without ridges on the lower surface. 4.1.8 Underrid shed
A shed with ridges on the lower surface.
4.1.9 Alternating shed
Large and small sheds arranged at regular intervals. 4.1.10 Dropping-edge
JB/T 5896-1991
The edge of an shed that allows falling water to drip along its lower edge. This part is ring-shaped. 4.1.11 Water shield shed An insulating or metal shed with a much larger diameter than other sheds to prevent bridging of sheds due to falling rain. 4.1.12 Conductor groove
The groove where the conductor is installed in the insulating part. The groove on the top of the insulating part is called the top groove, and the groove on the side part is called the sidie
groove.
cementing surface
Bonding part
The surface where the insulating part and the metal accessories are bonded. This part should be specially treated, such as sanding, knurling, grooving or corrugating, so that the metal accessories can be firmly attached.
4.1.14 Setting surface The part on the porcelain part where the broken part stands or contacts the pad during firing. This part is generally not glazed. 4.2 Parts
Ceramic insulator part
4.2.1 Porcelain part
4.2.2 Glass insulator part4.2.3 Metal fittingsmetal fittings
Accessories made of metal materials.
Cap (for suspension insulator)
Metal fittings on the top of the suspension insulator. Suspension insulator caps can be divided into: ball caps - caps with ball and socket connection structure; slot caps
- caps with slot connection structure.
4.2.5 Pin
Metallic accessories fixed to the holes of the insulators of pin-type and disc-shaped (suspension-type) insulators. The pin-type insulator pins can be fixed in the holes of the insulators in a removable manner (removable pins) or non-removable manner (fixed pins). According to their shapes and usage, they can be divided into straight pins, curved pins, wooden straight pins, etc.
4.2.6 Flange
flange
4.2.7 Conducting rod
current-carrying conductor
4.2.8 Humpback pin
split pin
4.3 Materials and processes
ceramic insulating material for clectrical applications; electrical porcelain4.3.1 Electrical porcelain materials
Ceramic insulating materials for electrical applications, commonly used are siliceous porcelain (ordinary electric porcelain), and those with higher mechanical strength requirements are higher-strength siliceous porcelain or aluminum porcelain.
sillca(electrical)porcelain
4.3.2 Siliceous porcelain
Bad material is a common electric porcelain made of clay, feldspar and quartz, which is commonly used in general high and low voltage insulators. Its main chemical components are SiO, which is about 70%, and Al,0, which is 20% or slightly higher. 4.3.3 Alumina (electrical) porcelain is an electric porcelain made by adding a certain amount of aluminum oxide raw materials to the bad material to replace part of the silicon oxide material in siliceous porcelain. Its mechanical strength performance is higher than that of siliceous porcelain. Its main chemical component is Al,0, and its content is about 40% or higher. 4.3.4 (porcelain) glaze (for electrical porcelain) is a white or colored translucent glassy thin layer on the surface of porcelain, with a thickness of about 0.1 to 0.3mm. According to the glaze color, there are white glaze, brown glaze, sky blue glaze, blue gray glaze, etc.
4.3.5 Slip
Suspension of ceramic base material and water. Slip used for glazing is called glaze slip. 4.3.6 De-ironing iron removal 4
The process of removing iron from base material.
4.3.7 Filtering
The process of dehydrating slurry to form slurry cakes.
4.3.8 Lumps of elay filter cakes The thin pancake-shaped plastic mud formed after the slurry is dehydrated. 4.3.9 Ageing
Synonym: Aging
JB/T 5896—1991
The process of placing mud in an unventilated and humid room (20-30℃) for a period of time to improve its performance. 4.3.10 Pugging
The process of kneading the mud cake obtained from the filter press to improve the quality of the mud. There are two types of clay kneading: simple kneading (without vacuuming) and vacuum kneading. The latter is called vacuum kneading. 4.3.11 Blank of clay, clay column Clay material cut after extrusion by vacuum kneading machine. 4.3.12 Clay
Synonym: green body
Material for forming after batching and processing, generally divided into dry clay, semi-dry clay and plastic clay. 4.3.13 Green body
The intermediate product that has not been fired after the clay is formed. The green body with a prototype that has not been processed and trimmed is called rough body. The green body that has been processed and trimmed but not glazed is called smooth body. The wet green body and smooth body are called wet body, and the dry green body and smooth body are called dry body. The green body after glazing is called green body. 4.3.14 Shaping
The process of making green body of various shapes from clay. 4.3.15 Wet forming
wetprocess
A forming method that uses wet clay to process the plasticity of the clay. Wet forming generally includes extrusion, spinning, hot pressing, cold pressing and turning forming.
4.3.16 Extrusion
extrusion
The process of continuously extruding a certain cross-section of a blank using a clay kneading machine and a corresponding outlet. 4.3.17 Jiggering
The process of processing plastic clay into a blank of a specified shape by the relative rotation of the forming knife and the clay segment. 4.3.18 WirecutterformingThe process of placing plastic clay on a rotating special metal support without a mold and directly cutting it into a blank with a wire knife or a steel knife. 4.3.19 SlipjoiningprocessThe process of wet-joining several clay segments separately and then wet-joining them with a jointing agent (water) to form the required blank. 4.3.20Hot pressing hotpressing
The process of pressing the plastic clay pressed into the mold into a molded part by the relative movement of the heated upper or lower mold and the lower or upper mold at room temperature.
coldpressing
4.3.21Cold pressing
The process of pressing the plastic clay pressed into the mold into a molded part by the relative movement of the upper and lower molds at room temperature. 4.3.22Roller forming rollerforming
The process of forming plastic clay on a rotating model with a rolling head. 4.3.23Turning
Eforming by turning turning
Synonym: turning
The process of turning a rotating clay segment into a molded part on a lathe by a forming tool. 4.3.25 Drypressing
JB/T5896-1991
The process of forming dry or semi-powdered materials by molding. 4.3.26 Semi-drypressing The process of placing low-moisture clay in the mold of a press and pressing it into a molded part. 4.3.27 Isostatic pressing The process of making (rough) molds by subjecting powder to extremely high pressure in all directions at the same time. 4.3.28 Templetturning A turning forming process in which a pulley is used to slide along the curve on the mold on a vertical molder equipped with a mold template to drive the tool to cut the rotating clay segment into molded parts.
4.3.29 Photoelectric controlled turning The process of using the photoelectric head installed on the vertical turning machine to control the tool holder to track the drawing corresponding to the shape and size of the processed part so that the tool cuts the rotating clay segment into the part. 4.3.30 Drying
The process of removing moisture from the body. There are natural drying and artificial drying (using electricity, steam or other heat sources). Natural drying
4.3.31 Natural drying
The process of removing moisture from the body using the atmosphere as the drying medium. Artificial drying
4.3.32 Artificial drying
The process of removing moisture from the body using various heat sources in the drying equipment. 4.3.33 Glazing
Synonym: Glazing
The process of attaching glaze to the surface of ceramic body. There are glazing, spraying, pouring, etc. 4.3.34 Sanding
The process of covering a specific surface of a dried part with a layer of sand. 4.3.35 Sintering
Synonym: Firing
The process of densifying a ceramic body within a certain temperature range below its melting point. At this time, physical and chemical changes such as particle bonding, enhanced structural density, grain growth, and improved strength and chemical stability occur, forming a solid aggregate. 4.3.36 Firing
The process of high-temperature treatment of a ceramic body after it is formed. 4.3.37 (Ceramic) Metallizing The process of covering the surface of ceramics with a layer of metal film. 4.3.38 Cement Cement Mortar A mixture of cementitious materials and filling materials used for insulator bonding, or a mixture of a solid substance melt. 4.3.39 Curing (for cement cement) The process of retaining moisture to allow the cement to obtain sufficient moisture to harden when cement cement is used to bond insulators. The curing methods include moisture curing, water curing and steam curing.
4.3.40 Binder for porcelain parts A material used to bond two porcelain parts together to form a hard whole. Adhesives are usually divided into organic (such as resin) and inorganic (such as porcelain enamel) materials.
5 Technical characteristics and test methods
5.1 Technical characteristics
JB/T5896—1991
Insulating distance iusulating length
The distance between the insulation and the projection of the conductor to be installed on the axis of the insulator. This distance is generally less than or equal to the arc distance.
nominal creepage distance
5.1.2 Nominal creepage distance
5.1.3 Minimum nominal creepage distance minimum nominal creepage distance The minimum value of the nominal creepage distance. The allowable value of its manufacturing deviation shall be specified in the standard or drawing. 5.1.4 Specific creepage distance The ratio of the creepage distance of the external insulation of power equipment to the maximum voltage of the equipment or the system using the equipment. S.1.5 Rainfall intensity Rainprecipitation rate The amount of artificial rain falling per unit time during the wet test, mm/min. 5.1.6 Withstand [flashover] voltage withstand [flashover] voltage 5.I.7 Power-frequency dry withstand [flashover] voltage dry Power-frequency withstand [flashover] voltage 5.1.8 Power-frequency wet withstand [flashover] voltage wet power-frequency withstand [flashover] voltage lightning impulse dry withstand [flashover] voltage dry lightning impulse withstand [flashover] voltage 5.1.91
Depending on whether the applied impulse wave is full wave or chopped wave, it can be divided into full-wave lightning impulse dry withstand [flashover] voltage and chopped-wave lightning impulse dry withstand [flashover] voltage.
operating impulse dry withstand [flashover] voltagedry switching impulse withstand [flashover] voltage5. 1. 10
wet switching impulse withstand [flashover] voltageoperating impulse wet withstand [flashover] voltage
breakdown voltagepuncture voltage
power-frequency impulse[impulst overvoltage]puncture volume3 power impulse[shock wave] breakdown voltage
5.1.14 wall puncture voltagewallpuncture voltageThe breakdown voltage of the insulator wall measured under specified conditions for hollow insulators. 5.1.15 radio interference levelradio interference levelThe number of decibels relative to 1μV for the radio frequency voltage value measured under specified conditions and at specified test voltage for insulators. 5.1.16 visible corona voltagevisual corona voltageWhen an insulator is tested under specified conditions, a voltage far exceeding the starting corona point is applied and slowly decreased until the discharge disappears completely from the test piece. This voltage is the visible corona voltage. 5.1.17 Tensile [bending torsion, compressive. internal pressure] failing load tensile [bending torsion, compressive. internal pressure] failing load 5.1.18 Mechanical withstand load mechanical withstand load The load that does not cause mechanical failure when a specified mechanical load is applied to the insulator for a specified period of time under specified conditions. 9 One-hour electromechanical test load 1-hour electromechanical test load 5. 1.19
5.1.20 Mechanical impact strength mechanical impact strength The kinetic energy that an insulator can withstand without failure under specified conditions. 5.1.21 Residual strength residual strength The maximum mechanical load that a disc suspension insulator, whose insulating parts have been mechanically damaged in a specified manner, may reach when tested under specified conditions.
5.1.22 Porosity
The degree to which a liquid can penetrate into a material when the material is immersed in it. For dense ceramic materials, no liquid can penetrate into them, which is called non-porosity.
5.1.23 Open porosity
Synonym: Apparent porosityppenporosityiapparentporosityThe ratio of the volume of open pores to the apparent volume. Expressed as a percentage. 7
Bulk densitybulkdensity
JB/T 5896—1991
The quotient obtained by dividing the mass of the test piece by the apparent volume (including open pores and closed pores)5.1.25 Natural pollution levelnaturalpollutionlevel The pollution severity level at the external insulation operation site. This pollution severity level can be divided into several levels from light pollution to heavy pollution based on comprehensive considerations such as the pollution and humidity conditions at the site, the operation experience of the external insulation at the site, and the pollution value of the external insulation surface measured at the site.
external Insulationpollutionclass External insulation pollution migration level
In order to meet the reliable operation in pollution migration areas, the ability of external insulation to withstand pollution migration is divided into several levels according to the natural pollution migration level and the test results of certain artificial pollution migration test methods.
5.1.27 Degreeofpollution represents the value of the pollution amount (salinity, layer conductivity, beneficial deposition density) of the tested insulator. (Pollution) Ash density (degree)
Synonym: Deposit density of insoluble materials insoluble material The mass of insoluble material deposited on the surface of the unit insulation of an insulator. S.1.29 Maximum leakage current (I,) highest leakage current The highest peak value current recorded on a test piece or actual insulator under the long-term action of the working voltage within a given time. 5.1.30 Critical current (Ic) critical current The peak current within half a cycle before flashover. This critical current is the maximum value of the highest leakage current 1. When the current reaches or exceeds the critical current, flashover will occur.
5.1.31 Critical voltage (Uc
criticalvoltage
The voltage value corresponding to the critical current, this voltage value is generally also expressed as a peak value.pollutionwithstand[flashover] voltage5.1.32
Flashover voltage before pollution (relocation)
5.2 Test methods
power-frequency spark test
5.2.1 Power-frequency spark test
5.2.2 Four-way bending withstand test bendingwithstand test in four directions5.2.3 Impact test
Earthquake-proof test
5.2.4 Earthquake-proof test
A test to ensure the insulator's ability to withstand a certain intensity.5.2.5 Ultrasonic testultrasonic testA non-destructive test method that uses ultrasonic waves to detect internal defects of porcelain parts or metal accessories.5.2.6 Test for continuity of the zinc coatingmagnetic test method of the zinc coating5.2.7 Magnetic test method of zinc coating
A non-destructive method that uses the principle of magnetic field to measure the quality of the zinc layer point by point. 5.2.8 Low temperature performance test Low temperature performance test The performance test of insulators under specified low temperature conditions. 5.2.9 Steep-front impulse voltage test 8
Semi-conductive glaze insulators
Semi-dry pressed
Rod-shaped suspension insulator string
Folding post insulator
Transformer bushing
Apparent porosity
Glass parts
Glass insulators
Glass sleeve
Deposition density of insoluble materials
Residual strength
Operation impulse dry withstand voltage
Operation impulse dry flashover voltage
Operation impulse wet withstand voltage ||tt| |Operation impulse wet flashover voltage.
Operation insulator
Long rod insulator string
Ultrasonic test
Turning
Impact wave breakdown voltage
Through-wall porcelain bushing
Through-wall bushing
Porcelain cross-arm insulator
Porcelain adhesive
Porcelain insulator.
(Porcelain) glaze
With prism umbrella
Conducting rod
Strike test
Isostatic pressing
Electric porcelain materials
Electric locomotive insulator
Electric precipitator insulator
JB/T 58961991
Term index
..5.1.23
.5.2.3
Electrical porcelain bushing
Electrical capacitor bushing
Electrical bushing
Capacitor bushing
Drip edge
Low temperature test
Steep wave impulse voltage test
Circuit breaker bushing
Profiling repair
Water dividing umbrella
Dry forming
Tempered glass insulator,
Wire knife forming||tt| |Thousand-pressure forming
Nominal creepage distance
Power frequency dry withstand voltage
Power frequency dry flashover voltage.
Power frequency breakdown voltage
Power frequency spark test·
Power frequency wet withstand voltage·
Power frequency wet flashover voltage
Photoelectric repair
Silica porcelain
Rolling forming,
Indoor wall-penetrating porcelain bushing
Indoor insulator
Outdoor wall-penetrating porcelain bushing
Outdoor-indoor wall-penetrating porcelain bushing
Outdoor insulator.
Overhead terrain disc (suspension) insulation
Adhesive
Adhesive (adhesive) paper capacitor bushing
AC insulator
Glue-fitting part
JB/T 58961991
.3.2.7
..5.2.8
..5.2.11 Power frequency spark test
5.2.2 Four-way bending withstand test bendingwithstand test in four directions5.2.3 Impact test
Earthquake-proof test
5.2.4 Earthquake resistance test
A test to ensure the insulator's ability to withstand a certain intensity. 5.2.5 Ultrasonic test ultrasonictest A non-destructive test method that uses ultrasonic waves to detect internal defects in porcelain or metal accessories. 5.2.6 Test for continuity of the zinc coating magnetic test method of the zinc coating5.2.7 Magnetic test method of zinc coating
A non-destructive method that uses the principle of magnetic field to measure the quality of the zinc layer point by point. 5.2.8 Low temperature test low temperature performance test A test of the insulator's performance under specified low temperature conditions. 5.2.9 Steep-front impulse voltage test8
Semi-conductive glaze insulator
Semi-dry pressed
Rod-type suspension insulator string
Folding post insulator
Transformer bushing
Apparent porosity
Glass parts
Glass insulator
Glass sleeve
Deposition density of insoluble materials
Residual strength
Operation impulse dry withstand voltage
Operation impulse dry flashover voltage
Operation impulse wet withstand voltage||tt| |Operation impulse wet flashover voltage.
Operation insulator
Long rod insulator string
Ultrasonic test
Turning
Impact wave breakdown voltage
Through-wall porcelain bushing
Through-wall bushing
Porcelain cross-arm insulator
Porcelain adhesive
Porcelain insulator.
(Porcelain) glaze
With prism umbrella
Conducting rod
Strike test
Isostatic pressing
Electric porcelain materials
Electric locomotive insulator
Electric precipitator insulator
JB/T 58961991
Term index
..5.1.23
.5.2.3
Electrical porcelain bushing
Electrical capacitor bushing
Electrical bushing
Capacitor bushing
Drip edge
Low temperature test
Steep wave impulse voltage test
Circuit breaker bushing
Profiling repair
Water dividing umbrella
Dry forming
Tempered glass insulator,
Wire knife forming||tt| |Thousand-pressure forming
Nominal creepage distance
Power frequency dry withstand voltage
Power frequency dry flashover voltage.
Power frequency breakdown voltage
Power frequency spark test·
Power frequency wet withstand voltage·
Power frequency wet flashover voltage
Photoelectric repair
Silica porcelain
Rolling forming,
Indoor wall-penetrating porcelain bushing
Indoor insulator
Outdoor wall-penetrating porcelain bushing
Outdoor-indoor wall-penetrating porcelain bushing
Outdoor insulator.
Overhead terrain disc (suspension) insulation
Adhesive
Adhesive (adhesive) paper capacitor bushing
AC insulator
Glue-fitting part
JB/T 58961991
.3.2.7
..5.2.8
..5.2.11 Power frequency spark test
5.2.2 Four-way bending withstand test bendingwithstand test in four directions5.2.3 Impact test
Earthquake-proof test
5.2.4 Earthquake resistance test
A test to ensure the insulator's ability to withstand a certain intensity. 5.2.5 Ultrasonic test ultrasonictest A non-destructive test method that uses ultrasonic waves to detect internal defects in porcelain or metal accessories. 5.2.6 Test for continuity of the zinc coating magnetic test method of the zinc coating5.2.7 Magnetic test method of zinc coating
A non-destructive method that uses the principle of magnetic field to measure the quality of the zinc layer point by point. 5.2.8 Low temperature test low temperature performance test A test of the insulator's performance under specified low temperature conditions. 5.2.9 Steep-front impulse voltage test8
Semi-conductive glaze insulator
Semi-dry pressed
Rod-type suspension insulator string
Folding post insulator
Transformer bushing
Apparent porosity
Glass parts
Glass insulator
Glass sleeve
Deposition density of insoluble materials
Residual strength
Operation impulse dry withstand voltage
Operation impulse dry flashover voltage
Operation impulse wet withstand voltage||tt| |Operation impulse wet flashover voltage.
Operation insulator
Long rod insulator string
Ultrasonic test
Turning
Impact wave breakdown voltage
Through-wall porcelain bushing
Through-wall bushing
Porcelain cross-arm insulator
Porcelain adhesive
Porcelain insulator.
(Porcelain) glaze
With prism umbrella
Conducting rod
Strike test
Isostatic pressing
Electric porcelain materials
Electric locomotive insulator
Electric precipitator insulator
JB/T 58961991
Term index
..5.1.23
.5.2.3
Electrical porcelain bushing
Electrical capacitor bushing
Electrical bushing
Capacitor bushing
Drip edge
Low temperature test
Steep wave impulse voltage test
Circuit breaker bushing
Profiling repair
Water dividing umbrella
Dry forming
Tempered glass insulator,
Wire knife forming||tt| |Thousand-pressure forming
Nominal creepage distance
Power frequency dry withstand voltage
Power frequency dry flashover voltage.
Power frequency breakdown voltage
Power frequency spark test·
Power frequency wet withstand voltage·
Power frequency wet flashover voltage
Photoelectric repair
Silica porcelain
Rolling forming,
Indoor wall-penetrating porcelain bushing
Indoor insulator
Outdoor wall-penetrating porcelain bushing
Outdoor-indoor wall-penetrating porcelain bushing
Outdoor insulator.
Overhead terrain disc (suspension) insulation
Adhesive
Adhesive (adhesive) paper capacitor bushing
AC insulator
Glue-fitting part
JB/T 58961991
.3.2.7
..5.2.8
..5.2.1
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