LT4177B - Earthing protection system - Google Patents

Earthing protection system Download PDF

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Publication number
LT4177B
LT4177B LT96-086A LT96086A LT4177B LT 4177 B LT4177 B LT 4177B LT 96086 A LT96086 A LT 96086A LT 4177 B LT4177 B LT 4177B
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LT
Lithuania
Prior art keywords
rod
rods
grounding
joint
steel
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LT96-086A
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Lithuanian (lt)
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LT96086A (en
Inventor
Robert Marciniak
Original Assignee
Galmar J Marciniak S C
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Publication date
Application filed by Galmar J Marciniak S C filed Critical Galmar J Marciniak S C
Priority to LT96-086A priority Critical patent/LT4177B/en
Publication of LT96086A publication Critical patent/LT96086A/en
Publication of LT4177B publication Critical patent/LT4177B/en

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Abstract

Invention applies to power engineering, telecommunications and electrical networks. The invention aims to achieve a grounding quality, reliability, to prolong the durability of the device and to improve conditions of exploitation. The grounding device consists of steel rods (1), coated by 0.1-0.5 mm thick copper or zinc coatings. The height of the rod is 0.5-3.0 mm, with a diameter of 5-45 mm. The ends of the rods (1) are joined by tread connection couplers (2) made out of bronze. Pounding it into the ground, the rod (1) hammering head (3), produced of reinforced steel, is screwed into a coupler (2), and on the lowest thread of the lowest rod a steel point is screwed on. The top rod (1), in order to connect the grounding device to round (5) or flat (6) inlets, is connected by a flat cross or profile cross joint or by a single-bolt joint, putting the rod into the joint and fastened by bolts. The joint is covered with a concrete box provided with a cover. The grounding device may consist of not more than 20 rods. The grounding rods are pounded into the ground, up to 25-30 m deep.

Description

Išradimas priklauso energetikos, telekomunikacijų, elektros tinklų sričiai, būtent įžeminimo įrengimams ir skirtas įžeminimų montavimui.The invention relates to the field of energy, telecommunication, electrical networks, namely to earthing equipment, and to earthing installations.

Žinomas įžeminimo įrenginys, sudarytas iš korpuso, kurio vienas galas sujungtas su įžeminamu objektu, o antras korpuso galas skirtas elektrinio krūvio išsklaidymui į atmosferą. Pirmo korpuso galo laidumas mažesnis negu antro. Elektrinis krūvis nuo įžeminamojo objekto patenka į antrą korpuso galą ir išsisklaido į atmosferą, (žr. JAV patentą Nr.5278721, TPK H 05 F 3/00, 1995).A known earthing device consists of a housing having one end connected to a grounded object and the other end of the housing being used to dissipate electrical charges into the atmosphere. The conductivity of the first housing end is lower than that of the second. The electrical charge from the grounding object enters the other end of the housing and dissipates into the atmosphere (see U.S. Patent No. 5,277,821, TPK H 05 F 3/00, 1995).

Žinomas įžeminimo įrenginys, sudarytas iš kabelio, elektrai laidaus lyno, skirto elektrinio krūvio nuvedimui ir įrengto žemėje, bei laidžios medžiagos, esančios tarp kabelio ir žemėe. Kabelio apsaugojimui nuo mechaninių pažeidimų, jis gali būti patalpintas į smėlio pagalvę. (žr. buv. SU patentą Nr.1626465, TPK H 05 F 3/00).A well-known earthing device consisting of a cable, an electrically conductive rope for carrying an electric charge and installed in the ground, and conductive material between the cable and the ground. To protect the cable from mechanical damage, it can be placed in a sand cushion. (see former SU patent 16626465, TPK H 05 F 3/00).

Žinomų įžeminimo įrengimų trūkumai yra tie, kad jie neužtikrina kokybiško bei patikimo įžeminimo.The disadvantages of known earthing devices are that they do not provide high quality and reliable grounding.

Išradimo tikslas - įžeminimo kokybės, patikimumo, įrenginio ilgaamžiškumo padidinimas ir eksploataciaių sąlygų pagerinimas.The object of the invention is to increase the quality, reliability, durability of the earthing device and improve the operating conditions.

Išradimo esmė yra ta, kad įžeminimo įrenginys, kurį sudaro elektrai laidžios dalys, sudarytas iš vertikalių plieninių su sriegiais galuose strypų, padengtų 0,1-0,5 mm storio varine ai'ba cinkuota plėvele ir tarpusavyje sujungtų orieginiu sujungimu bronzinėmis movomis, plie2 nlnėa įkalimo galvutės, įsukamos į movą, kalant strypą į gruntą, ir išsukamos sukalus strypą, be to, ant apatinio strypo apatinio sriegio užsuktas plieninis antgalis, o viršutinis strypas išardomu sujungimu sujungtas su jungtimi įžeminimo įrenginio sujungimui su įvadais, uždengta betonine dėžute su dangčiu.It is an object of the present invention that an earthing device consisting of electrically conductive parts consisting of vertical steel-threaded rods coated with 0.1-0.5 mm thick copper ai'ba galvanized film and interconnected by means of a bronze coupling, plie2 nlnne the hammer heads, which are screwed into the coupling, forging the rod into the ground, and unscrewed after turning the rod, furthermore a steel nozzle is screwed on the lower thread of the rod, and the upper rod is connected by a demountable joint to a grounding device.

Išradimo esmė yra taip pat ta, kad įžeminimo įrenginys sudarytas iš ne daugiau kaip 20 strypų, kurių aukštis 0,5-3,0 m, diametras 5-45 mm.It is also an object of the invention that the earthing device consists of a maximum of 20 bars having a height of 0.5-3.0 m and a diameter of 5-45 mm.

Išradimo esmė yra taip pat ta, kad įžeminimo įrenginio viršutinis strypas sujungtas su kryžmine plokščia arba kryžmine profiline, arba vienvaržte jungtimi.It is also an object of the invention that the top rod of the grounding device is connected to a cross-flat or cross-sectional or single-screw connection.

Išradimas iliustruojamas brėžiniais.The invention is illustrated in the drawings.

Fig.I - įžeminimo įrenginio konstrukcija. Fig.2 kryžminė plokščia jungtis įžeminimo strypo sujungimui su įvadais. Fig.3, 4 - kryžminė profilinė jungtis įžeminimo įrenginio sujungimui su įvadais. Fig.5 - vienvaržtė jungtis įžeminimo įrenginio sujungimui su įvadais. Fig.6 įžeminimo įrenginio plieninis antgalis.Fig. I - Construction of the earthing device. Fig. 2 is a flat flat connector for connecting the ground rod to the inlets. Fig. 3, 4 - Cross profile connector for connecting the grounding device to the inlets. Fig.5 - Single screw connection for connecting the grounding device to the inlets. Fig.6 Steel tip of grounding device.

Įžeminimo įrenginys sudarytas iš plieninių strypų I, padengtų vario arba cinko plėvele, kurios storis 0,1-0,5 mm. Strypo aukštis 0,5-3,0 m, diametras 5-45 mm. Strypų I galuose yra sriegiai, skirti strypų tarpusavio sujungimui srieginiu sujungimu movomis 2. Movos 2 pagamintos iš bronzos, kuri yra atspari korozijai. Movos 2 ilgis ir sriegių ilgis parinkti taip, kad strypai sujungiami movos viduryje. Iš abiejų movos 2 pusių yra Išfrezavimai sriegių paslėpimui ir jų apsaugojimui nuo korozijos. Strypų I įkalimui į gruntą elektriniu vibropolaktuku naudojamaThe earthing device consists of steel bars I covered with copper or zinc film, 0.1-0.5 mm thick. The height of the rod is 0.5-3.0 m, diameter 5-45 mm. The ends of the rods I have threads for interconnecting the rods with threaded couplings 2. Couplings 2 are made of bronze which is corrosion resistant. The length of the coupling 2 and the length of the threads are chosen so that the rods are connected in the middle of the coupling. On both sides of the sleeve 2 are cutouts for concealing threads and protecting them from corrosion. An electric vibroplate is used to impregnate rods I into the ground

3.3.

įkalimo galvutė 3, pagaminta iš sustiprinto plieno. Kalant strypą I į gruntą, įkalimo galvutė 3 įsukama į movą 2. Sukalus strypą I, įkalimo galvutė 3 iš movos 2 išsukama.jawing head 3, made of reinforced steel. When hammer I into the ground, the hammer head 3 is screwed into the sleeve 2. After the rod I is turned, the hammer head 3 is unscrewed from the sleeve 2.

Strypų I įkalimui į kietą gruntą ir jų lengvesniam praėjimui per pasitaikančias žemėje kliūtis, ant apatinio strypo apatinio sriegio užsukamas plieninis antgalis 4.A steel nozzle 4 is screwed onto the underside of the lower rod to lock the rods I into the hard ground and to facilitate their passage through the ground obstacles.

Įžeminimo įrenginys gali būti sudarytas iš ne daugiau kaip 20 strypų. Sujungiamų tarpusavyje strypų skaičius ir jų gabaritai parenkami priklausomai nuo norimos gauti įžeminamojo įrengimo (objekto) varžos.The earthing device may consist of up to 20 rods. The number of connecting rods and their dimensions are selected depending on the resistance of the grounding device (object) to be obtained.

Įžeminimo įrenginio sujungimui su apvaliais 5 (viela) ar plokščiais 6 (juosta) įvadais naudojamos kryžminė plokščia, kryžminė profilinė ir vienvaržtė jungtys. Jungtis su viršutiniu strypu sujungiama išardomu sujungimu, įstatant strypą į jungtį ir sutvirtinant varžtais. Jungtis uždengiama betonine dėžute su dangčiu. Tokiu būdu suteikiama galimybė kontakto strypas-įvadas patikrinimui ir įžeminimo varžų kontroliniam matavimui.Cross-flat, cross-section and single-screw connectors are used to connect the grounding device to round 5 (wire) or flat 6 (tape) inputs. The joint with the upper rod is connected by a detachable joint by inserting the rod into the joint and fastening with bolts. The connector is covered by a concrete box with a lid. In this way, it is possible to check the contact rod-inlet for inspection and to check the grounding resistance.

Įžeminimo strypus I įkala iki 25-30 m gylio. Kuo giliau į gruntą įkala strypus, tuo pasiekiama mažesnė įžeminimo varža. Trumpus įžeminimo strypus įkala stovint ant žemės, il*gus stovint ant kopėčių (paaukštinimo). Išilginės jėgos kalimo metu perduodamos iš strypo į strypą, kadangi strypai sujungti movos 2 viduryje. Įsukus į movą 2 įkalimo galvutę 3, strypą I sukala į gruntą. Sukalus strypą I į gruntą, įkalimo galvutę 3 išsuka ir kita mova 2 sujungia strypą su kitu strypu I. Po to vėl į movą 2 įsuka įkalimo galvutę 3, sukala strypą I, ir vėl mova 2 jungia strypą su strypu.Grounding bars I are hammered to a depth of 25-30 m. The deeper the bars are, the lower the ground resistance. Short earthing bars are hammered on the ground, long on the ladder (promotion). The longitudinal forces during forging are transmitted from rod to rod, since the rods are connected in the middle of the coupling 2. By screwing the hammer head 3 into the sleeve 2, the rod I is turned into the ground. After the rod I is turned into the ground, the hammer head 3 turns off and the other sleeve 2 connects the rod with another rod I. The sleeve 2 is then screwed into the sleeve 2 again, the rod I is formed, and the sleeve 2 again connects the rod with the rod.

Gero kontakto tarp strypo ir movos užtikrinimui, monta4. LT 4177 B vimo metu į movą įpila specialios antikorozinės pastos, įžeminimo įrenginys turi eilę privalumų. Jie apsaugo žmonių gyvybes nuo elektros energijos iškrovų dėl kokybiško ir patikimo įžeminimo, kurį užtikrina pareiškiamo įrenginio konstrukcija, kurios dėka pasiekiama labai maža įžeminimo varža, mažesnė už Ι-Ω. . Labai mažą įžeminimo varžą galima gauti panaudojant keletą įžeminimo įrengimų, prisilaikant sąlygos - atstumas tarp įžeminimo strypų (įrengimų) turi būti ne mažesnis už įžeminimo gylį. Be to panaudojant didelį įgilinimą , netgi pasiekus gruntinius vandenis, padidinama galimybė viename taške gauti mažą varžą.For good contact between rod and coupling, fitting4. LT 4177 B Special anti-corrosion paste is added to the coupling, the grounding device has a number of advantages. They protect people's lives from electrical discharges due to the high quality and reliable grounding provided by the design of the claimed device, which results in a very low earthing resistance below,-Ω. . Very low earthing resistance can be obtained by using several earthing devices, subject to the condition that the distance between the earthing rods (devices) must not be less than the earthing depth. In addition, the use of large dives, even when reaching groundwater, increases the potential for low impedance at a single point.

Pasiekti mažą varžą naudojant paprastus trumpus įžemi nimus labai sunku arba net neįmanoma.It is very difficult or even impossible to achieve low impedance using simple short grounding.

. Aukštą įžeminimo kokybę garantuoja strypų sujungimas su mova atitinkamu sriegiu, pagaminta iš bronzos, kuri yra atspari korozijai. įžeminimo patikimumą užtikrina p atsparūs tempimui (600 N/mm ), sukimui, kalimui ir korozijai strypai, pasižymintys dideliu laidumu. Strypai sulenkti 90° kampu netrūkinėja ir nelūžta.. High grounding quality is guaranteed by connecting the rods to the coupling with a corresponding thread made of bronze which is resistant to corrosion. earthing reliability is ensured by p tensile (600 N / mm), torsion, forging and corrosion-resistant rods with high conductivity. Rods bent at 90 ° do not break or break.

Įžeminimo įrenginio ilgaamžiškumas siekia net 30 metųThe earthing device has a lifetime of up to 30 years

Claims (3)

Išradimo apibrėžtisDefinition of the Invention 1. Įžeminimo įrenginys, kurį sudaro elektrai laidžios dalys, besiskiriantis tuo, kad jis sudarytas iš vertikalių plieninių su sriegiais galuose strypų, padengtų 0,1-0,5 mm storio varine arba cinkuota plėvele ir tarpusavyje sujungtų srieginių sujungimu bronzinėmis movomis, plieninės įkalimo galvutės, Įsukamos į movą, kalant strypą į gruntą, ir išsukamos sukalus strypą, be to, ant apatinio strypo apatinio sriegio užsuktas plieninis antgalis, o viršutinis strypas išardomu sujungimu sujungtas su jungtimi įžeminimo įrenginio sujungimui su įvadais, uždengta betonine dėžute su dangčiu.1. Grounding device consisting of electrically conductive parts, characterized in that it consists of vertical steel-threaded rods, coated with copper or galvanized film of 0.1-0.5 mm thickness and brass plugs connected to one another by steel , Screwed into the sleeve, forging the rod into the ground, and unscrewed after the rod has been turned, furthermore a steel nozzle is screwed on the lower thread of the rod and the upper rod is connected by a detachable connection for connecting the earthing device to the inlets covered by a concrete box. 2. Įžeminimo įrenginys pagal I punktą, besiskiriantis tuo, kad jis sudarytas iš ne daugiau kaip 20 strypų, kurių aukštis 0,5-3,0 m, diametras 5-45 mm.2. An earthing device according to claim I, characterized in that it consists of up to 20 bars having a height of 0.5-3.0 m and a diameter of 5-45 mm. 3. Įžeminimo įrenginys pagal I punktą, besiskiriantis tuo, kad įžeminimo įrenginio viršutinis strypas sujungtas su kryžmine plokščia arba kryžmine profiline, arba vienvaržte jungtimi.3. An earthing device according to claim I, characterized in that the upper rod of the earthing device is connected to a cross-flat or cross-profile or single-screw connection.
LT96-086A 1996-06-11 1996-06-11 Earthing protection system LT4177B (en)

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LT96-086A LT4177B (en) 1996-06-11 1996-06-11 Earthing protection system

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LT96-086A LT4177B (en) 1996-06-11 1996-06-11 Earthing protection system

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LT96086A LT96086A (en) 1997-01-27
LT4177B true LT4177B (en) 1997-06-25

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1626465A1 (en) 1988-05-13 1991-02-07 Киргизский Научно-Исследовательский Отдел Энергетики Microwave pulse former
US5278721A (en) 1990-10-02 1994-01-11 Electrostatic Devices, Inc. Electric charge discharge and dissipation device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1626465A1 (en) 1988-05-13 1991-02-07 Киргизский Научно-Исследовательский Отдел Энергетики Microwave pulse former
US5278721A (en) 1990-10-02 1994-01-11 Electrostatic Devices, Inc. Electric charge discharge and dissipation device

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