TW496016B - Loadbreak connector assembly which prevents switching flashover - Google Patents

Abstract

Loadbreak connectors which are modified to reduce the probability of flashover upon disassembly operation of a loadbreak bushing insert from a power cable elbow connector. The loadbreak bushing insert and power cable elbow connector are mated with an interference fit between an elbow cuff and a transition shoulder portion of the loadbreak bushing insert. The bushing insert is provided with vents to vent a cavity formed between the elbow cuff and the transition shoulder portion of the bushing insert with ambient air to avoid a decrease in pressure within the connection region and avoid a decrease in the dielectric strength of the air therein thus preventing flashover. Preferably, the vents are provided on an elbow seating indicator band formed of a bright contrasting color on the bushing insert which, in addition to venting the cavity, serves to indicate whether the loadbreak connector is improperly assembled.

Description

496016 A7 B7 V. Description of the invention (5) [Background of the invention] The present invention relates to load disconnection connectors, especially when switching on) load plowing road connection benefits, to prevent the switchover of the arcing circuit breaker switch from crying. Yiliang. Buckle | [Knowledge Technology] | Install Lu Ding

The printed circuit breaker connector printed by the employee's consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs is used to connect 15 and 25KV power distribution devices. It usually includes a power line elbow connector, which has a mating end for connecting | The mating end is used to receive a load-breaking bushing insert. The mating end for receiving the bushing insert, usually includes an elbow sleeve, which is used to provide | interference fit to the module flange on the bushing insert. The aforementioned interference fit is located between the head and the bushing insert, providing a seal against moisture and dust. An indicator tape can be provided in the load-breaking sleeve insert part—so that the inspector can quickly and visually judge the correct combination of the aforementioned elbow sleeve and the sleeve insert—the aforementioned elbow sleeve forms a cavity, and the empty There is a lot of air in the cavity: the sleeve insert | During the initial operation of the load disconnecting connector, a large amount of air in the cavity of the elbow cuff is increased, but is tightly closed by the elbow cuff due to the decompression in the cavity. The insulation strength of the air in the cavity decreases with decreasing air pressure. Although this is a transient phenomenon, it occurs at the tipping point of dismantling and can cause insulation breakdown at open interfaces to cause flashovers or arcs to ground. The occurrence of & arcing is also related to other parameters, such as the ambient temperature, the actual separation of the connectors, and the relationship between the sinusoidal voltage across the load connector. J: \ LILV'h06840.doc

This paper size applies to China National Standard (CNS) A4 specifications (210 X 297 mm 496016 A7) V. Description of the invention () Flashover for other reasons When switching the load disconnection connector in contact separation, it can be attributed to the location along the axis The air insulation strength from the interface between the sleeve insert and the elbow of the power cable to the ground is reduced. As previously mentioned, the air pressure is instantly reduced by the cavity sealed between the elbow sleeve and the flange of the sleeve insert. The low voltage in the cavity reduces the insulation strength of the air along the interface of the connector, which may lead to flashover. According to this, the design of a load disconnect connector system is to include a power interrupter and a load interrupter bushing insert. 2 = Incoming parts reduce or prevent possible flashovers when switching connectors. [Objective and Summary of the Invention] The purpose of the present invention is to provide a load disconnection connector that can prevent flashovers from occurring when disassembled under load. The interface of the connector. The object of the present invention is to provide a connector for the electric power line and a load-breaking bushing insert, which has an improved interface and can be vented to prevent inter-pelvic Reduction of air pressure and reduction of air insulation strength caused by the occurrence of flying foxes. The purpose of the present invention is to provide a kind of electric power I-wire elbow connector and load disconnecting bushing insert, which has formed on the aforementioned bushing. The indicator tape of the insert can be ventilated to prevent the reduction of air pressure and the reduction of air insulation strength caused by flying isolation. Another object of the present invention is to provide an electric cable elbow connector and a load breaking shaft. Sleeve inserts, in which the distance from the elbow's current-carrying electrode to the shaft sleeve's ground electrode is increased to avoid flying foxes. H06840.dc This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) ------------.! (Please read the precautions on the back before filling out this page) J ^ T · Printed by the Employee Consumption Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 496016 A7 V. Description of the invention (This invention It is still further improved to provide an electric slow wire elbow connector which has an electrode and the part of the electrode is covered by an insulating material to increase the distance from the arc to ground. The present invention has other purposes and provides In the power cord connector, the receiving opening of the bushing insert includes: at its top, an insulating material is arranged in the conductive insert of the elbow connector to increase the distance between the current-carrying electrode and the ground. Zhi- 'load disconnecting connector combination includes:-electric slow wire elbow with conductor receiving end and-load disconnecting bushing inserting inserting end, and-load disconnecting bushing inserting insert. The aforementioned load disconnecting bushing insert includes: a The insulated outer casing has a through-hole in the shaft, and the conductive elements are arranged in a good :: hole and three sections in the outer casing. The size of the first end section is "placed into the general cavity of the sleeve 'second The dimensions of the end section are inserted into the elbow connector, and the third section-the middle section, has a larger radial direction than the first, 7 «section. The aforementioned middle section preferably includes: a conductive part for grounding and conducting a test ^ '' and-the conversion shoulder is located between the second end section and the middle section ^ into the elbow sleeve of the elbow connector and the towel of the sleeve insert The reduction of the pressure between the sleeves, the sleeve shoulder of the bushing insert includes the device—a ring-shaped top surface of the shoulder for the conversion of the longitudinal side surface of the ㈣M section. I The aforementioned ventilation device can be formed in a plurality of ways, including that the air groove is formed in the conversion shoulder of the outer casing, 'at least one through hole is from the surface of the part to the longitudinal side surface, and the annular groove is formed on the conversion shoulder, ^ ㈣: \ ULYWJ6i < 40.doc This paper size is suitable for financial and family care standards (CNS) A4 ^^ 1Q χNou Gongai) Refill the notes on the back of the page • Separate page installation • Employees ’Cooperatives of the Ministry of Economic Affairs’ Intellectual Property Bureau Printed 496016 A7 V. Description of the invention

On · ^ 力 日 + 本 Convert the shoulder. Furthermore, the cavity I is formed between the elbow head and the sleeve insert conversion shoulder, and can include a full: Please read the elasticity of the cavity first to prevent any decrease in force in the cavity. Filler In the yoke example, the ventilator includes an elbow-indicating strap formed on the conversion shoulder of the bushing insert. When reading the road sleeve, Yu, Shi. Deduction-Book / Tianyue * 11 elbow king fits to the aforementioned load break ||, where a cannot be completely hidden inside the aforementioned elbow sleeve. The aforementioned = the shoulder is formed with a stepped portion or a recessed portion, and the aforementioned indicator band is molded in a brighter, brighter color than the above, and is placed in the stepped portion or the recessed portion to provide a double instruction and to provide a cavity formed therebetween. purpose. ! Substitute {, the combination of the power i-line elbow and the load-breaking bushing insert ’can also be used as a package-device to increase the distance between the current-carrying electrode and the ground to ^ arc. The power i-wire elbow connector includes-the receiving end of the conductor, the receiving end of the bushing insert of the load path, and the conductive μ extending from the slow-wire terminal end to the "." The receiving end of the aforementioned sleeve inserter includes a car— =

舳 Has an elbow wrap around it. The aforementioned load-breaking bushing insert includes a shell with a penetrating shaft hole and a conductive element disposed in the aforementioned shaft hole. ^ Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The outer shell includes the elbow insertion end of the power cable. And the size of the middle section is larger than that of the elbow housing, and the power line elbow is inserted into the human end. The outer housing includes a conversion shoulder located between the middle section and the input end, which is used to provide a sealing relationship with the elbow sleeve when the sleeve insert is inserted into the elbow. The conversion shoulder of the aforementioned sleeve insert includes a venting device according to the present invention for providing a sleeve J: LILVh06X40.doc This paper size is applicable to the Chinese National Standard (CNS) A4 specifications ⑽χ 挪 公 发 A7 A7 Wisdom of the Ministry of Economic Affairs Printed by the Consumer Cooperative of the Property Bureau V. Description of the invention (= Yi Erkong!) And the flow of the conversion shoulder of the sleeve insert when it is disassembled. The elbow sleeve and the conversion shoulder are to prevent and allow π this % 7 The reduction of the force of the positive core armor Γ :; Mv caused by the decrease in the strength of the edge of the bar. In addition, the middle section of the bushing insert includes a conductive part with a + connecting end on it. Use ^^ & i Eighty to one ground + is used for the attachment of the grounding conductor according to the present invention, meaning, + ,, #, if flying arc: ;; :: It is located between the ground connection end and the conversion shoulder, and the two current-carrying electrodes pass over the insulating material The arcing distance is increased. Heart: Second, the power thin wire elbow includes an electrode for electrically contacting the conductive element of the insert in the ϋ sleeve. The aforementioned electrode includes a part of a pot insulation material surrounding the electrode, which is recorded in the power elbow. And sleeve insert ς combination = interposed into the human sleeve insert. According to this, the distance between the electrode and the ground must be increased by the insulating material surrounding the electrode, and the length of the arc must be increased. Furthermore, the electrical elbow includes a conductive insert. The top of the bushing insert receiving space is described below. The electrical insert includes insulation material located on the top of the bushing insert receiving space, which is used to increase the distance between the current-carrying electrode and the ground. The preferred form includes a power cable elbow connector, a load-breaking shaft sleeve insert, and a seat indicating belt. Other preferred embodiments, purposes, features, and advantages of the present invention will be detailed from the following specific embodiments and the accompanying drawings. Brief description of the drawings] Figure 1 is a side view of the conventional load disconnection connector, namely the power cable elbow, the load disconnection, and the sleeve insert and the general bushing cavity side view .: LILV'ha6X40.doc Paper dimensions Applicable to China National Standard (CNS) A4 specification (210 X 297 mm) Packing -------- Order · (Please read the precautions on the back before filling this page)

A7 B7 V. Description of the invention ()

Pieces of ::::: Enlarged cross-sectional view of the interference of tight bifurcation between parts of the conventional electric power line and load-carrying bushing I inserted I thin = three '1 according to the present invention to improve the formation of radon troughs Load circuit breaker sleeve = Enlarged cross-sectional view of the tight interference between the incoming part and the elbow connector of the power gauge. i

Age According to the present invention, an improved load I interrupting bushing insert including an annular vent groove and an electric 螬 green, ® diagram are formed. 1-force 1-line elbow connection m enlarged interference cross-section | Figure 5 is an open section of the 4th platform f mounting insert and electric power according to the present invention. Improved loading of the rib Face view. ff / ϋ According to the present invention, a load-breaking bushing insert inserted out of the package through-hole and an improved large cross-sectional view of the month. The installation of tight interference between the joints, joint force gauges and wire elbow connectors. Fig. 7 is an ambiguous modification of the present invention to form a plug-in shaft insert including a load interrupter. The tight interference between the A-piece and the thin force elbow connector

Figure 8 is a top plan view of a seat indicating belt with a vent groove formed according to the present invention. Figure 9 is formed according to the present invention including a load-breaking bushing insert and a general drawing-cavity cavity covered with an insulating material to cover the ground power consumption. Face view. Figure 10. Included-electrode which has an insulation coating and a guide rod at the top of the receiving space of the insulated sleeve. 卞 何 卞 伏 员 ㈣ 496016 A7 V. Description of the invention () [Detailed description of the embodiment] Refer to the figure-and Figure 2 illustrates a conventional load-break connector. Figure Electric power line elbow connector 2 剌 ## to fix to ～ ## cavity The aforementioned sleeve cavity 6 is set on the device panel a, and the elbow connector 2 includes a first mating end for receiving a load disconnection! The sleeve insert 4 and the elbow connector with a flange or a sleeve surrounding the material I line Also included-on. Eye-dropping to provide live power J: Γ Second: Γ-type point 14 4 Capacitance-consumption terminal system and appropriate electric house induction l-] of the connector and a conductive element extending from the aforementioned receiving end to the aforementioned axis The socket insert socket receiving end is used to connect the electrode insert end of the aforementioned sleeve insert. 36 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economics. Please refer to Figures 1 and 2. The load-breaking sleeve insert 2 includes one. The section 18 has a size larger than the holding portion of the shaft insert. The middle section 18 includes a conversion shoulder 20 located between the middle section 18 and the top section 22. The top section 22 is inserted into the power cable elbow connector 2. Figure 2 more clearly shows the connector interface. The sides of the elbow sleeve 10 and the middle section 18 are provided with an interference fit to provide a moisture and dust seal for the sleeve insert 2. During the initial operation of the power cable elbow connector 2 away from the sleeve insert 4 during the disassembly operation, the cavity 24 is defined by the elbow sleeve 10 and the conversion shoulder 20 of the sleeve insert. And between the conversion shoulders of the bushing insert, resulting in reduced pressure in the cavity 24. The degree of air insulation in air space 24 decreases as the pressure decreases. Although this is only a short-term phenomenon, this \ LILVh06840.doc This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 496016 A7 V. Description of the invention (The insulation strength of the new year occurs at the threshold of operation Point, and the electrical interface elbow connector: and the open interface between the bushing inserts 4 formed insulation collapse, resulting in a dirty or covered arc to the ground. The occurrence of this flashover is also related to uncontrollable parameters, such as The ambient air temperature, the actual separation of the connector, and the time relationship between the voltage. During the separation of the elbow connector from the bushing insert under load, the insulation strength is reduced due to the empty. In order to prevent flying fox, this The invention provides a structure 'forming a ventilation cavity μ' by the elbow sleeve and the middle section of the bushing insert, or increasing the gap between the current-carrying electrode and the ground to compensate for the decrease in the air insulation strength after the pressure is reduced. Figure 8. The present invention provides a device that defines a venting cavity by the interface of the power cable elbow sleeve 1G and the sleeve inserting member. More specifically, the provided venting device fThe power I elbow connector is completely fixed to the bushing insert, and the elbow sleeve and the middle section of the bushing insert 18 provide a seal. The power cable elbow connector is removed and moved away from the bushing insert. Ventilation % The device is an open, ventilated cavity and a balanced pressure device in the cavity:

Gas pressure. I Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, please refer to Figure 3 in particular, which shows a partial cross-section view of the interface of the elbow sleeve 1G and the sleeve ^, and the conversion shoulder 20 of the sleeve insert includes at least one ventilation slot. 26 'This vent groove contains an oblique cut in the middle section of the bushing insert. During the movement of the elbow head 10 away from the sleeve insert, the lower portion of the vent groove 26 is exposed to the ambient air pressure 'and generates steam with the cavity 24. J: 'LILV ^ h06840.d〇c This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 4 ^ 6016 A7 V. Description of the invention (& and the pressure gauge balanced in the M towel # Pressure around the connector group. According to this, the interference fit between the elbow sleeve and the bushing insert: the most: air and dust can be prevented, and the power_connector 2 Qijing's disassembly operation It is ventilable. The S-method of the 4th generation ventilating cavity 24 is shown in Fig. 4 and a partial cross-sectional view of the interface of the sleeve insert =. The lice knife prevents the reduction of the air insulation strength in the second cavity. Five further shows an alternative embodiment, wherein the bushing insert includes up to i /-convex M 30 substantially formed on the conversion shoulder 20 of the bushing insert. Especially particularly, when the aforementioned rib 3G is dismantled, force is applied. The elbow cannula 10 is expanded in four directions, thereby allowing the cavity 24 to be in fluid communication with the surrounding air of the surrounding connector combination. The ventilation cavity is further advanced. An alternative embodiment is that the element is formed in the elbow The interface between the sleeve and the sleeve insert, as shown in Figure 6, which includes at least one Through holes from the side of the bushing insert to the annular top surface of the conversion shoulder. ^ 2. During the disassembly operation, the aforementioned through holes allow the cavity to pass to the outside air to prevent a reduction in pressure in the cavity. Each of the above methods includes improvements The load-disconnecting bushing insert allows ventilation of the cavity formed between the bushing insert and the elbow sleeve. Alternatively, the power cable elbow connector 2 can be modified to prevent a reduction in air pressure in the cavity. h06X40.doc This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 Public Love A7) V. Description of the invention (^^ Has the ability to maintain moisture and dust sealed at the interface of the elbow sleeve and the sleeve insert. The elbow sleeve can prevent any built-in cavity =, this can also allow money and dust to accumulate at the bottom of the interface and may cause, as shown in Figure,, the through hole in the sleeve insert to be removed | d 气 气 and The elastic material 34 is placed in the cavity, so that during the disassembly operation: the cavity and the pimple are effectively removed. # However, the elastic material is designed to be able to apply force to the interface of the sleeve insert, so that the power line I Elbow Lu Yuanji 2D w The interface will not be removed.—A suitable elastic material can be considered. # The elastic material can also be formed in solid materials or formed on the wings extending from the foot below the elbow sleeve to the horizontal foot. 丨 Please refer to Figure 7 and Figure 8. In a further embodiment of the present invention, the fruit is placed on the conversion shoulder 20d formed in the aforementioned sleeve insert 18, and is printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. 70. The aforementioned indicator tape 70 is a ring with bright colors, such as red, yellow, or thread, and has a strong contrast with the color of the aforementioned sleeve insert ΐδ. The material indicator tape 7Q can be made of any suitable rubber or plastic material Molded out. The conversion shoulder 20 is formed with a stepped portion or a recessed portion 72 and the indicator tape 70 is disposed on the stepped portion or the recessed portion. The aforementioned indicator tape 70 is mounted on the conversion shoulder M of the aforementioned sleeve inserting member 18, so when the negative rhyme connector is correctly assembled, the aforementioned elbow sleeve ι0 completely covers the finger without providing a complete Combined visual indication. If the sleeve insert u is not fully inserted into the elbow sleeve 1Q, the color of the bright shell of the aforementioned indicator band 70 will be seen and the incomplete combination will be noticed. This type of wealth seat J: > LILV'h06X40.doc This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297) 496016 A7

Please read the notes of S first

496016 A7

496016 A7 B7 V. Description of the invention () Coupling locking sleeve of the bushing insert is used to fix the connection of the insert of the power mirror wire socket. Based on this, in order to respond to the occurrence of flashover, Feihu may (please read the precautions on the back before filling this page) and stretched over the insulation layer 6G and stepped over the insulation layer 52 to reach the bushing insertion: ground electrode. Instead, the distance between the 'on-line electrode 52 and the ground electrode 3 of the bushing insert can be further increased' by covering the on-line electrode 52 to increase the permanent xenon arc distance. As shown in FIG. 10, the electrode 52 includes a top portion surrounded by an insulating layer & Accordingly, in order to respond to the occurrence of green, the flying arc a traverses the insulating material surrounding the sheet portion of the electrode 66, and thereafter, traverses the insulating portion 60 above the conductive insert 58 and the insulating material 56 to reach the sleeve The ground electrode 38 of the insert. Therefore, the arcing distance is increased by the insulating material " rain pole and further-by increasing the distance from the top of the receiving opening of the sleeve insert to the bottom of the conductive insert of the conductive path :: in the conductive path. Of course, employees of the Intellectual Property Bureau of the Ministry of Economic Affairs can also use the printed cable elbow connector to improve the electrode insulation part 66, the insulating material 60 provided in the conductive part or a combination of both to increase the current-carrying electrode and = Ground = distance. By increasing the ㈣ distance, the elbow connection around the power I line is laughed. 2 The arcing in the air pressure of the sealed interface between the load-bearing and disconnecting bushing inserts 4 is reduced. The decrease is due to the reduction of the air insulation strength around the interface, which greatly reduces the cost The invented load-breaking connector combination, which includes an improved electric sleeve elbow connector of the shaft sleeve, greatly reduces flying only during disassembly operations. Wrong by providing ventilation head device located in the sleeve insert and power thin wire

LiLVh06840.doc Wood paper scale is applicable to Chinese National Standard (CNS) A4 specification (210 x 297 male cage # 6016) 5. Description of the invention (Interference fit interface can prevent arcing or increase arcing distance, power on: prevent flying fox The increase of the arcing distance can be accomplished by providing additional insulating material at: private, between conductive inserts, or both. Although the embodiments disclosed in the present invention have been described above and are accompanied by a schematic reference, It is clear that the present invention is not limited to these embodiments, and other changes or modifications made by those skilled in the art without departing from the spirit or spirit of the present invention are still included in In the present invention, please read the notice on the back before filling out this page. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. 15 J: ^ LILV'h06840.doc This paper size is applicable to China National Standard (CNS) A4 (210 X 297). Love)

Claims (1)

496016 6. Scope of patent application 1. A load-breaking shaft sleeve insert, including the first end: the shaft hole, the outer edge of the% edge housing, the aforementioned housing includes three sections, the size of the plug two ::: for Sealed in the cavity of the sleeve, the second end is inserted: the force cable elbow connector, and the radial direction of the middle section is larger than the second end: the outer housing has a conversion shoulder located on the shaft of the Kosho housing The conductive element in the hole; and the indicator tape of the conversion shoulder of the ==, the color of the indicator tape is different from the aforementioned outer shell, the instruction tape includes one step to two: through, which is used for the aforementioned conversion shoulder Ventilation between the ring-shaped top surface and the longitudinal side surface of the middle section of the aforementioned / V body. /, 2. The load-breaking shaft sleeve inserting member described in item 1 of the material range, at least one of the air passages described above includes a vent groove of -I. —㈣ 成 ^ mentioned instruction strip line 3. ^ The load-breaking bushing insert piece described in item i of the material range, basin | Zhongbei 逑 At least one ventilation i includes at least one conversion from the aforementioned /,% shaped top surface A through hole to the longitudinal side surface of the middle section of the aforementioned casing. 4. For example, please refer to the load-breaking shaft bushing insert described in item i of the patent scope, and at least one vent 1 in the basin, including the annular groove formed in the aforementioned indication band. 5. If = please ask for the scope of patent scope! The load-breaking shaft bushing described in the item above, at least one ventilation rib including a plurality of convex ribs arranged in a ring shape on the surface of the aforementioned finger. 1 1 11 6. As mentioned in the scope of the patent application, the load-breaking shaft sleeve insert, J: \ LILY \ h06840.doc This paper size applies to China National Standard (CNS) A4 (210 X 297 mm 6 applications In the patent scope, the other indication belts are 罟 7 ^ wen placed on the recess formed by the conversion shoulder. 7 · A kind of resumption of production production certificate to connect the profit level meeting, including people!! =: 连; :: including the Zhao Zhao receiving end and Load-breaking sleeve insert receiving = to further include a conductive element ㈣ 临 pro 1 receiving sleeve insert receiving end, the aforementioned sleeve insert receiving & includes an open end with a surrounding elbow sleeve; and placing the insert 'includes having a shaft The insulating outer shell of the hole and the conductive elements in the hole SI are composed of the conductive elements in the hole, wherein the aforementioned outer shell contains the force; the radial direction of the wire and the middle section is larger than the outer shell ㈣ 入 ^ Μ, the end, the outer shell is described The body has a conversion shoulder located in the middle section and the elbow socket, and it is used to insert the electric sight wire in the sleeve insert, and provides a close relationship with the interference fit of the elbow socket. On the conversion shoulder of the outer shell of the insert, the finger The color material formed by the band is different from the aforementioned outer shell and includes ventilation 1, which is used to provide fluid communication between the air and moon work defined by the elbow sleeve and the conversion shoulder blade when it is pulled, and to cooperate with the elbow sleeve And the positioning of the shoulder of the insert. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 8. The combination described in item 7 of the scope of patent application, wherein when the aforementioned load is applied, the insertion end of the road bushing insert is completely When the ground is inserted into the receiving end of the sleeve insert of the aforementioned power cable connection, the aforementioned indicator band is invisible because of the elbow sleeve of the power cable elbow connector. 9. The combination described in item 7 of the scope of patent application , Where the aforementioned ventilation includes at least one ventilation groove formed in the aforementioned indication band. 1 0 · The combination as described in item 7 of the scope of patent application, wherein the aforementioned ventilation i J: \ LILY \ h06840.doc This paper size applies to Chinese national specifications ⑽X 297 public love), the scope of the patent application includes at least one through-hole formed from the I-plane to the aforementioned finger stem C and from the ring-shaped top table n 1 ^ of the aforementioned indicator strip. As described in Shen Qing's patents, the combination formed in the first two volumes ’where the aforementioned ventilation i package is required, and the circular groove is not included. -• The combination described in item 7 of the patent application Fan Xidi I 乜 Lu Xian, where the aforementioned airway sentence zero 13 is provided with a plurality of ribs arranged on the outer surface of the Keshu indicator belt. —The tomb venting method between the power cable elbow connector and the load disconnection connector is to install the i IIIIII custom load disconnection sleeve insert, including the following steps: The size of the cut-off sleeve insert, which includes the first end section, is sealed in the sleeve cavity. The size of the second end section is inserted into the aforementioned power cable elbow connector. The first and second end sections, and the conversion shoulder are provided between the aforementioned second end section and the intermediate section Z; forming an air vent, which is located between the longitudinal side surfaces of the aforementioned turn and the aforementioned intermediate section; " The Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Surface Economy printed and separated the power cable elbow connector and the load disconnecting bushing insert to separate the cavity formed between the power cable elbow connector and the load disconnecting bushing insert. By means of ventilation, substantially prevent the generation of low-pressure insulated air gaps. I 14. The method according to item 13 of the scope of the patent application, wherein the aforesaid ventilator includes at least one load-breaking shaft formed The ventilation slot of the conversion part U of the insert 'Θ 15 · The method described in item 13 of the scope of patent application, in which the aforementioned ventilation stand J: \ LILY \ h06840.doc This paper size applies the Chinese National Standard (CNS) A4 specification ( 210 X 297 mm) Six patent application scope through-holes. / Menyou 4 The method described in item 13. of the range-shaped top surface to the aforementioned longitudinal side surface == 13 of the scope ... W Describes the loop of the shoulder of the load-breaking pull-out insert ^ 17. π: = 1 The method described in item 13, wherein the above-mentioned pass M; = the conversion shoulder j 18 of the insert of the load-break open-car insert. : Method described in item 13 of the scope of patent application J Steps of the indicator belt placed on the aforementioned conversion shoulder m: The color of ㈣ is different from the aforementioned load-breaking sleeve insert No. 2: Order the load-breaking sleeve insert and A visual judgment of the full connection of the power cable. 1 19. According to the method described in item 18 of the scope of patent application, the step of forming a recess is used to place the aforementioned fingers: 20. The method described, the second end of the interruption sleeve insert Department & * in the 〃: negative when said endoscope cable connector into the elbow, the # indicates the river into said electrical connector from view. Stomach "Electric Pro-Linear Elbow 21 · I is formed in the aforementioned indicator band as described in item 18 of the scope of patent application. Zhifang to go ’where the aforementioned ventilation is difficult | J: \ LILY \ h06840.doc This paper size applies to China National Standard (CNS) A4 (210 X 297 ^ 5 "