CN105977661A - Installation and construction technology of grounding copper cables - Google Patents
Installation and construction technology of grounding copper cables Download PDFInfo
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- CN105977661A CN105977661A CN201610461325.9A CN201610461325A CN105977661A CN 105977661 A CN105977661 A CN 105977661A CN 201610461325 A CN201610461325 A CN 201610461325A CN 105977661 A CN105977661 A CN 105977661A
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- ground connection
- copper cable
- copper
- grounding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T19/00—Devices providing for corona discharge
- H01T19/04—Devices providing for corona discharge having pointed electrodes
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The invention provides an installation and construction technology of grounding copper cables. The technology comprises the steps of: installing and positioning the grounding copper cables; installing a vertical grounding electrode; burying the grounding copper cables; laying the grounding copper cables on various layers of a building; laying a roof lightning protection belt; and carrying out indoor grounding network construction. The welding and connecting technology in the indoor grounding network construction step is an exothermic welding process and specifically comprises the following steps of: selecting a proper mold according to the joint form of the grounding copper cables; cleaning the connection positions of the grounding copper cables; adding reaction powder; and carrying out ignition for welding the cables and cleaning the mold. The same or different metals of copper and copper, copper and steel and the like can be completely fused by the exothermic welding process; and real molecules combination is achieved, so that a lightning-proof grounding device becomes a permanent maintenance-free device; the grounding protection technology provided by the invention is very perfect; the leakage damage of equipment is effectively prevented; the manpower resource is saved; and the time limit for a project is shortened.
Description
Technical field
The invention belongs to building installation engineering field, especially relate to the construction technique of a kind of ground connection copper cable.
Background technology
Grounding device is also referred to as ground connection integrated apparatus: constituting the equipment of electrical connection between electrical equipment or other object and ground,
Grounding device is formed grounding device by earthing pole, earth bus, down conductor, framework ground connection, it be used to realize be electrically
The purpose united and be greatly connected.Directly contacting the metal object realizing being electrically connected with the earth is earthing pole, and it can be artificial
Earthing pole, it is also possible to be natural grounding pole, can be assigned to certain electric function, such as in order to make system earth, guarantor to this earthing pole
Protecting ground connection or signal ground, ground connection busbar is the reference point of potential of electrical installations in buildings, by it by electric device domestic demand ground connection
Part be connected with earthing pole.It also plays another effect, is i.e. interconnected by bonding conductors all in electric device by it,
Thus generic equivalent-potential bonding between big part current-carrying part in realizing building.Connecting line between earthing pole and ground connection busbar is referred to as connecing
Earth polar goes between.
Earth resistance refers to that electric current enters the earth the resistance run in time around spreading through grounding body.The earth has certain
Resistivity, if having electric current to flow through, the most just has different current potentials the biglyyest.After the grounded body of electric current injects the earth, it
With the form of current field to bleeding around, from earth point more away from, hemispheric diffusing area is bigger, and the electric current density in ground is the most
Little, it can thus be assumed that remotely, the resistance of unit diffusion length and earth current density oneself close to zero, at this current potential oneself be zero
Current potential, the ratio of the current potential Um at earth point and earth current I is defined as earth resistance R, the R=Um/I of this point, works as ground connection
When electric current is definite value, earth resistance is the least, then current potential Um is the lowest, otherwise the highest, and earth resistance depends primarily on ground connection dress
The factors such as the structure put, size.
Safety, the reliability of electrical system are played an important role by building installation engineering earthed system, due to same material ground connection
Welding connecting mode traditional between body also exists that electrically conducting rate (current capacity) is not enough and the defect such as intensity is relatively low.Electrically
In system, the technical performance such as the bonding strength of earthed system, grounding resistance directly influences the safety of whole system and reliable
Property, so the selection of earthed system and technological requirement are just particularly important in the construction of whole electrical system.In China North China,
The multiple district of the thunder and lightning such as East China and south China, building installation engineering earthed system frequently with copper material as earthing pole, earth bus and
Draw and reach the standard grade, and between copper material, welding connecting mode traditional between unlike material grounding body there is electrically conducting rate (electric current
Capacity) defect such as not enough and intensity is relatively low.
Summary of the invention
For Shortcomings in prior art, the invention provides the construction technique of a kind of ground connection copper cable.
The construction technique of a kind of ground connection copper cable, comprises the following steps,
S1. ground connection copper cable installs location: the most substantially position, Civil Specialities carry out ground connection ditch and excavate construction,
What the excavating depth of trench should meet ground connection copper cable buries demand underground；
S2. installing vertical grounding electrode: described vertical grounding electrode 6 is copper rod, the spacing between described vertical grounding electrode 6 is more than institute
State the twice of vertical grounding electrode 6 its length；The pipe close that nibs is added, by vertical grounding electrode 6 in described vertical grounding electrode 6 lower end
Squeeze in ground connection ditch；
S3. ground connection copper cable dish is set up: selecting smooth construction site to set up ground connection copper cable dish, copper cash lays according to drum winding direction
Release clockwise；
S4. horizontal grounding copper cable is laid at each layer of building: applied with underground horizontal ground connection copper cable 5 by described horizontal grounding copper cable 3
Being set as latticed, described underground horizontal ground connection copper cable 5 should avoid equipment Foundations 7, described horizontal grounding copper cable 3 and subsoil water
Flush ground copper cable 5 and be laid in below described building sides lamination or protective layer；
S5. lay and draw vertical ground connection copper cable: described in burying underground in the concrete column of building, draw vertical ground connection copper cable 4, mixed
Four hole ground connection inserts are respectively installed in the both sides of solidifying earth pillar；
S6. roof lighting proof strip is laid: carry out on roof laying lighting proof strip copper bar 2 and discharging rod copper rod 1；
S7. each layer ground networks of fixing connection: by described underground horizontal ground connection copper cable 5 with described vertical grounding electrode 7 at its breakpoint
Place carries out being welded to connect fixing；Draw upper vertical ground connection copper cable 4 enter described at its breakpoint with described underground horizontal ground connection copper cable 5
Row is welded to connect fixing；The horizontal grounding copper cable 3 of each layer is drawn upper vertical ground connection copper cable 4 carries out at its breakpoint with described respectively
It is welded to connect fixing；Described lighting proof strip copper bar 2 is drawn upper vertical ground connection copper cable 4 carries out being welded to connect solid at its breakpoint with described
Fixed；Carry out being welded to connect fixing at its breakpoint by described discharging rod copper rod 1 and described lighting proof strip copper bar 2.
Further, described step S7 selects exothermic weld method to be welded to connect copper cable joint, specifically comprises the steps of,
SS1. suitable mould is selected according to the joint form of ground connection copper cable: check the welding booth of described mould, taphole and dish seat,
Guarantee its clear-cut, there is no breach or scuffing；The dividing surface of the selected mould of cleaning, keeps the cleaning of described dividing surface,
For moist mould, it is necessary to dry moisture；
SS2. cleaning ground connection copper cable link position: use the line end that suitable solvent clean oils and fats pollutes, for the copper cable got rusty,
Use brush cleaning make it clean and expose copper luster, aqueous copper cash blowtorch is dried.
SS3. adding reaction powder: be placed in mould by bare copper wire, Guan Bi mould handle, to latched position, is looked into by hand-hole and is regarded,
Whether copper cash, in hand-hole, is poured into welding agent in mould, and ignition charge is positioned on the lip of mould, is interspersed among by powder on fire
Die lip, then top cover.
SS4. light a fire and cable is welded: launch spark with the powder on fire on lighter alignment die lip, cause when powder on fire catches fire
Molten powder burning welding.
SS5. cleaning mold: after the slurry solidification of 15-20 second copper and mould drop to rated temperature, die sinking is taken out and is melt into copper cash, clearly
Except slags all in fusible pattern, in case welding point metal brush is cleaned down by weld job next time, and check that joint is the most complete
Firmly.
Further, described insert installation site is the above 450mm in indoor concrete ground, 450mm below top.
Further, described rated temperature is 100 DEG C.
Compared with prior art, the invention have the benefit that 1. ground connection copper cables use heat release weldering for welding method, its welding position
Put and will not get loose or corrode；2. the conductor resistance value at the place of being welded to connect levels off to zero, and the conductive capability of junction is substantially equal to institute
The conductor connected；3. ground connection copper cable construction technology is perfect, effectively prevents the thunder and lightning destruction to equipment Foundations 7, and embodiment party
Formula is simply easy to save the duration.
Accompanying drawing explanation
Fig. 1 is the mounting structure sketch of ground connection copper cable of the present invention.
Fig. 2 is the flow chart of construction technique of the present invention.
Description of reference numerals is as follows: 1. discharging rod copper rod；2. lighting proof strip copper bar；3. horizontal grounding copper cable；4. draw and vertically connect
Ground copper cable；5. underground horizontal ground connection copper cable；6. vertical grounding electrode；7. equipment Foundations.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is not limited to
This.
The construction technique of a kind of ground connection copper cable, comprises the following steps:
S1. ground connection copper cable installs location: the most substantially position, Civil Specialities carry out ground connection ditch and excavate construction,
What the excavating depth of trench should meet ground connection copper cable buries demand underground.
S2. installing vertical grounding electrode: described vertical grounding electrode 6 is copper rod, the spacing between described vertical grounding electrode 6 is more than institute
State the twice of vertical grounding electrode 6 its length.The pipe close that nibs is added, by vertical grounding electrode 6 in described vertical grounding electrode 6 lower end
Squeeze in ground connection ditch.For soil layer is solid hard or stone is more, the earthing pole place of burying underground can be dug deeper row construction again.In order to subtract
The quantities of few ditching, the construction that matches with civil engineering when architectural engineering earth excavation of should trying one's best.
S3. ground connection copper cable dish is set up: selecting smooth construction site to set up ground connection copper cable dish, copper cash lays according to drum winding direction
Releasing clockwise, copper cash must not have the phenomenon such as twisting, pine stock, and copper cash lays should be straight.At the termination of every copper cash adhesive tape bag
Wrap, beat with wooden mallet during straightening ground connection copper cable, and want chock plate below.
S4. horizontal grounding copper cable is laid at each layer of building: by horizontal grounding copper cable 3 and the underground horizontal ground connection copper cable 5 of every layer
Lay into latticed, described in draw vertical ground connection copper cable 4 and should avoid equipment Foundations 7, described horizontal grounding copper cable 3 and underground
Horizontal grounding copper cable 5 is laid in below described building sides lamination or protective layer.
S5. lay and draw vertical ground connection copper cable: described in burying underground in the concrete column of building, draw vertical ground connection copper cable 4, described
Draw vertical ground connection copper cable 4Connection as grounded screen indoor between adjacent two layers.One four hole ground connection is respectively installed embedding in the both sides of post
Entering part, embedded location is placed on the center of post, described insert be used for connecting described in draw vertical ground connection copper cable 4 and connect with described level
Ground copper cable 3.Insert installation site is the above 450mm in indoor concrete ground, 450mm below top.
S6. lay roof lighting proof strip: carry out on roof laying lighting proof strip copper bar 2 and discharging rod copper rod 1, it is ensured that with draw upper vertical connect
Ground copper cable 4 is reliably connected.
S7. each layer ground networks of fixing connection: by described underground horizontal ground connection copper cable 5 with described vertical grounding electrode 7 at its breakpoint
Place carries out being welded to connect fixing；Draw upper vertical ground connection copper cable 4 enter described at its breakpoint with described underground horizontal ground connection copper cable 5
Row is welded to connect fixing；The horizontal grounding copper cable 3 of each layer is drawn upper vertical ground connection copper cable 4 carries out at its breakpoint with described respectively
It is welded to connect fixing；Described lighting proof strip copper bar 2 is drawn upper vertical ground connection copper cable 4 carries out being welded to connect solid at its breakpoint with described
Fixed；Carry out being welded to connect fixing at its breakpoint by described discharging rod copper rod 1 and described lighting proof strip copper bar 2.
Described step S7 selects exothermic weld method copper cable joint is welded to connect, comprises the following steps,
SS1. suitable mould is selected according to the joint form of ground connection copper cable: check the welding booth of described mould, taphole and dish seat,
Guarantee its clear-cut, there is no breach or scuffing.The dividing surface of the selected mould of cleaning, keeps the cleaning of described dividing surface,
For moist mould, it is necessary to dry moisture.
SS2. cleaning ground connection copper cable link position: use the line end that suitable solvent clean oils and fats pollutes, for the copper cable got rusty,
Use brush cleaning make it clean and expose copper luster, aqueous copper cash blowtorch is dried.
SS3. adding reaction powder: be placed in mould by bare copper wire, Guan Bi mould handle, to latched position, is looked into by hand-hole and is regarded,
Whether copper cash, in hand-hole, is poured into welding agent in mould, and ignition charge is positioned on the lip of mould, is interspersed among by powder on fire
Die lip, then top cover.
SS4. light a fire and cable is welded: launch spark with the powder on fire on lighter alignment die lip, cause when powder on fire catches fire
Molten powder burning welding.
SS5. cleaning mold: after the slurry solidification of 15-20 second copper and mould drop to rated temperature, die sinking is taken out and is melt into copper cash, clearly
Except slags all in fusible pattern, in case welding point metal brush is cleaned down by weld job next time, and check that joint is the most complete
Firmly；Described rated temperature is 100 DEG C.
After having welded, it is ensured that described connected copper cable must be completely encased by joint, and the metal of connecting portion is completely melt also
And be connected firmly, the surface of connecting portion should smooth and without perfoliate pore.
Using heat release to weld, the conductor that fusion splice is connected is completely encased by joint, the connecting portion of ground connection copper cable
Metal is completely melt, is connected firmly, and the surface of welding point smooths, and welding point should be without perfoliate pore.Exothermic weld energy
By welding complete between identical or different metal, reach the real combination of molecule, so that grounding-for-lightning device becomes permanent
Non-maintaining device.
Described embodiment be the present invention preferred embodiment, but the present invention is not limited to above-mentioned embodiment, without departing substantially from this
In the case of the flesh and blood of invention, any conspicuously improved, replacement or modification that those skilled in the art can make are equal
Belong to protection scope of the present invention.
Claims (4)
1. the construction technique of a ground connection copper cable, it is characterised in that comprise the following steps,
S1. ground connection copper cable installs location: the most substantially position, Civil Specialities carry out ground connection ditch and excavate construction,
What the excavating depth of trench should meet ground connection copper cable buries demand underground；
S2. installing vertical grounding electrode: described vertical grounding electrode 6 is copper rod, the spacing between described vertical grounding electrode 6 is more than institute
State the twice of vertical grounding electrode 6 its length；The pipe close that nibs is added, by vertical grounding electrode 6 in described vertical grounding electrode 6 lower end
Squeeze in ground connection ditch；
S3. ground connection copper cable dish is set up: selecting smooth construction site to set up ground connection copper cable dish, copper cash lays according to drum winding direction
Release clockwise；
S4. horizontal grounding copper cable is laid at each layer of building: applied with underground horizontal ground connection copper cable 5 by described horizontal grounding copper cable 3
Being set as latticed, described underground horizontal ground connection copper cable 5 should avoid equipment Foundations 7, described horizontal grounding copper cable 3 and subsoil water
Flush ground copper cable 5 and be laid in below described building sides lamination or protective layer；
S5. lay and draw vertical ground connection copper cable: described in burying underground in the concrete column of building, draw vertical ground connection copper cable 4, mixed
Four hole ground connection inserts are respectively installed in the both sides of solidifying earth pillar；
S6. roof lighting proof strip is laid: carry out on roof laying lighting proof strip copper bar 2 and discharging rod copper rod 1；
S7. each layer ground networks of fixing connection: by described underground horizontal ground connection copper cable 5 with described vertical grounding electrode 7 at its breakpoint
Place carries out being welded to connect fixing；Draw upper vertical ground connection copper cable 4 enter described at its breakpoint with described underground horizontal ground connection copper cable 5
Row is welded to connect fixing；The horizontal grounding copper cable 3 of each layer is drawn upper vertical ground connection copper cable 4 carries out at its breakpoint with described respectively
It is welded to connect fixing；Described lighting proof strip copper bar 2 is drawn upper vertical ground connection copper cable 4 carries out being welded to connect solid at its breakpoint with described
Fixed；Carry out being welded to connect fixing at its breakpoint by described discharging rod copper rod 1 and described lighting proof strip copper bar 2.
The construction technique of a kind of ground connection copper cable the most according to claim 1, it is characterised in that described step S7 is selected
Select exothermic weld method copper cable joint is welded to connect, specifically comprise the steps of,
SS1. suitable mould is selected according to the joint form of ground connection copper cable: check the welding booth of described mould, taphole and dish seat,
Guarantee its clear-cut, there is no breach or scuffing；The dividing surface of the selected mould of cleaning, keeps the cleaning of described dividing surface,
For moist mould, it is necessary to dry moisture；
SS2. cleaning ground connection copper cable link position: use the line end that suitable solvent clean oils and fats pollutes, for the copper cable got rusty,
Use brush cleaning make it clean and expose copper luster, aqueous copper cash blowtorch is dried.
SS3. adding reaction powder: be placed in mould by bare copper wire, Guan Bi mould handle, to latched position, is looked into by hand-hole and is regarded,
Whether copper cash, in hand-hole, is poured into welding agent in mould, and ignition charge is positioned on the lip of mould, is interspersed among by powder on fire
Die lip, then top cover.
SS4. light a fire and cable is welded: launch spark with the powder on fire on lighter alignment die lip, cause when powder on fire catches fire
Molten powder burning welding.
SS5. cleaning mold: after the slurry solidification of 15-20 second copper and mould drop to rated temperature, die sinking is taken out and is melt into copper cash, clearly
Except slags all in fusible pattern, in case welding point metal brush is cleaned down by weld job next time, and check that joint is the most complete
Firmly.
The construction technique of a kind of ground connection copper cable the most according to claim 1, it is characterised in that described insert is installed
Position is the above 450mm in indoor concrete ground, 450mm below top.
The construction technique of a kind of ground connection copper cable the most according to claim 1, it is characterised in that described rated temperature is
100℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610461325.9A CN105977661B (en) | 2016-06-22 | 2016-06-22 | A kind of construction technique being grounded copper cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610461325.9A CN105977661B (en) | 2016-06-22 | 2016-06-22 | A kind of construction technique being grounded copper cable |
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| CN105977661A true CN105977661A (en) | 2016-09-28 |
| CN105977661B CN105977661B (en) | 2019-05-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110364931A (en) * | 2019-06-20 | 2019-10-22 | 浙江省送变电工程有限公司 | A kind of compression joint type roof lightning band and its installation method |
| CN111883942A (en) * | 2020-07-13 | 2020-11-03 | 中国人民解放军63653部队 | High-resistance rock cavern indoor full-section combined grounding technology |
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| CN101304148A (en) * | 2008-07-09 | 2008-11-12 | 中铁一局集团有限公司 | Construction method for underground grounded screen |
| CN102403578A (en) * | 2010-09-13 | 2012-04-04 | 五冶集团上海有限公司 | Mounting method of lightning protection and grounding equipment in benzol hydrogenation process |
| CN102496827A (en) * | 2011-12-06 | 2012-06-13 | 余姚市供电局 | Method for connecting copper grounding bodies of grounding network |
| WO2013047043A1 (en) * | 2011-09-30 | 2013-04-04 | 株式会社日立プラントテクノロジー | Anti-lightning equipment |
| CN205265113U (en) * | 2015-11-20 | 2016-05-25 | 韶关市擎能设计有限公司 | Ground system of transformer substation |
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2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101304148A (en) * | 2008-07-09 | 2008-11-12 | 中铁一局集团有限公司 | Construction method for underground grounded screen |
| CN102403578A (en) * | 2010-09-13 | 2012-04-04 | 五冶集团上海有限公司 | Mounting method of lightning protection and grounding equipment in benzol hydrogenation process |
| WO2013047043A1 (en) * | 2011-09-30 | 2013-04-04 | 株式会社日立プラントテクノロジー | Anti-lightning equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110364931A (en) * | 2019-06-20 | 2019-10-22 | 浙江省送变电工程有限公司 | A kind of compression joint type roof lightning band and its installation method |
| CN110364931B (en) * | 2019-06-20 | 2023-11-10 | 浙江省送变电工程有限公司 | Crimping type roof lightning protection belt and installation method thereof |
| CN111883942A (en) * | 2020-07-13 | 2020-11-03 | 中国人民解放军63653部队 | High-resistance rock cavern indoor full-section combined grounding technology |
| CN111883942B (en) * | 2020-07-13 | 2022-10-11 | 中国人民解放军63653部队 | High-resistance rock cavern indoor full-section combined grounding method |
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| CN105977661B (en) | 2019-05-17 |
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