CN107552991A - The welding method of cable jacket iron pipe in a kind of earth work - Google Patents
The welding method of cable jacket iron pipe in a kind of earth work Download PDFInfo
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- CN107552991A CN107552991A CN201710959771.7A CN201710959771A CN107552991A CN 107552991 A CN107552991 A CN 107552991A CN 201710959771 A CN201710959771 A CN 201710959771A CN 107552991 A CN107552991 A CN 107552991A
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- iron pipe
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Abstract
The welding method of cable jacket iron pipe, is related to cable jacket iron pipe welding technology field in a kind of earth work of the present invention.The present invention includes implementing the protection to cable (1) and the selection of ground connection overcoat iron pipe (2) ground connection pad, and it includes step：When A. constructing, stopping cable (1) transmits electric power or transmission signal；B. confirm job site without inflammable, explosive factor；C. pad is selected；D. paint removal or processing of rust removing are carried out to overcoat iron pipe (2) weld；... G. is by enforcement of regulations ground connection welding operation；H. welding quality is detected；I. remove wet burlap everywhere and carry out japanning processing；J. terminate.Pass through the inventive method, realize and avoid dismantling, operate the welding that efficient, economic, easy cable jacket iron pipe is grounded or parallel cable overcoat iron pipe is bridged or iron pipe seam crossing is electrically connected, be that lightning wave protection works, the electrostatic protection engineering of electrical equipment, electromagnetic interference shielding improvement project etc. provide strong technical support.
Description
Technical field
The present invention relates to cable jacket iron pipe welding technology field, refers specifically to cable jacket iron pipe in a kind of earth work
Welding method.
Background information
From Franklin《It is electric identical with ours by sky lightning》Paper.By 1754, lightning rod started to apply.
In more than 260 years of Franklin's invention shocking preventing technology, in the construction of substantial amounts of anti-induction thunder ENG land, often meet
To prevent that various irregular pulses from attacking electrical equipment or prevention lightning wave is propagated, cable jacket iron pipe earthing method is used.
The purpose of cable jacket iron pipe is not only to destroy from external force for cable, and more important is connect by cable jacket iron pipe
Ground, or the bridging of parallel cable overcoat iron pipe, or the electrical connection of iron pipe seam crossing, prevent various irregular pulses from attacking electrical equipment
Or prevention lightning wave is propagated or potential difference.So that the protection steel pipe of cable is grounded as an example, national standard GB50168《Electric device is installed
Engineering cable line construction and acceptance specification》1992,2006,2016 versions, all for cable jacket iron pipe ground connection have clearly
Regulation " when being grounded using the protection steel pipe of cable, should first weld ground wire, then cabling ".
At the same time, the consideration of cable is not splashed for spark caused by welding, people will recognize that and cool naturally, aqueous phase
The welding of pass.Learnt from many documents, cooling welding, water cooling welding, Underwater Welding, the common feature with water welding manner are
Cooling, and cool main purpose be welding when prevent welded article body deform, but can not prevent or eliminate welding caused by fire
Flower.
Because design problem or construction are omitted, cable jacket iron pipe not ground connection or earth point deficiency, or simultaneously are tended to occur
Distance is not bridged in prescribed limit between row cable jacket iron pipe, or iron pipe seam crossing is not electrically connected.Such electricity
Cable overcoat iron pipe can not play the filtering of high pulse voltage as caused by thunderbolt or switching overvoltage or pressure acts on, and also cannot
Ensure the electric current quality or communication quality of cable.Therefore, cable jacket iron pipe is grounded, or the bridging of parallel cable overcoat iron pipe, or
The electrical connection of iron pipe seam crossing turns into the problem of indispensable in Lightning Transformation engineering.
Really, cable jacket iron pipe ground connection, or the bridging of parallel cable overcoat iron pipe, or the electrical connection of iron pipe seam crossing are implemented
It can be welded by pipe collar and directly.Pipe collar electrical connection is ineffective, does not use generally, and it is best electric insertion hand to weld
Section.After being so molded for cable jacket iron pipe, cable is included in iron pipe, and it is one kind side that cable extraction is implemented into welding again
Method, but this for improvement project, so construction is nearly impossible, because if so construction, former electrical engineering
It will again come, and can not only bring debugging again and possible newborn failure problems, user will not also allow.For that can not influence to weld
Connect, and do not change original Cable layout and reliably working, in the case where avoiding dismantling, operate efficient, economic, easy theory, how
Implement cable jacket iron pipe ground connection, bridging, connection by welding, it is desirable to a kind of method for solving this problem.
The content of the invention
It is an object of the invention to overcome missing existing for prior art and deficiency, propose in a kind of earth work outside cable
The welding method of iron pipe is covered, including implements the protection to cable and the selection of ground connection overcoat iron pipe ground connection pad, it also includes
Step：
When A. constructing, stop cable transfer electric power or transmission signal；
B. confirm job site without inflammable, explosive factor；
C. pad is selected；
D. paint removal or derusting are carried out to overcoat iron pipe weld；
E. at overcoat iron pipe port, the gap between cable and iron pipe, anti-welding spark is taken to be splashed into measure；
F. the cable exposed in nearly iron pipe port, anti-welding spark measure is taken；
G. by enforcement of regulations ground connection welding operation；
H. welding quality is detected；
I. remove wet burlap everywhere and carry out japanning processing；
J. terminate.
The welding method of cable jacket iron pipe, construction meet in a kind of earth work of the present invention：
1. China State Bureau of Quality and Technical Supervision, The Ministry of Construction of the People's Republic of China, MOC's joint are issued《Building lightning protection design rule
Model》GB50057-2010.
2. The Ministry of Construction of the People's Republic of China, MOC, State Administration for Quality Supervision and Inspection and Quarantine's joint are issued《Building electronics
Information system design code for lightning-proof》GB50343-2012.
As described above, the inventive method can need not dismantle original cable, make to cause cable to destroy due to welding procedure
Risk substantially reduces.Solves the problems, such as site operation with this method.Be grounded for lightning protection improvement project cable jacket iron pipe,
Electrically insertion construction provides strong technical support for bridging, connection.
Brief description of the drawings
Fig. 1 is welding procedure drawing schematic diagram；
Fig. 2 is the welding method FB(flow block) of cable jacket iron pipe in a kind of earth work of the present invention.
Embodiment
Below in conjunction with drawings and examples, the invention will be further described
The welding method of cable jacket iron pipe in a kind of earth work, including implement the protection to cable 1 and ground connection overcoat
Iron pipe 2 is grounded the selection (as shown in Figure 1) of pad.
Its method and step is following (as shown in Figure 2)：
The first step, during construction, stop cable 1 and transmit electric power or transmission signal.
Second step, confirm job site without inflammable, explosive factor.
3rd step, select pad.
4th step, paint removal or derusting are carried out to the weld of overcoat iron pipe 2；
5th step, at the port of overcoat iron pipe 2, gap is taken anti-welding spark to be splashed into and arranged between cable 1 and iron pipe 2
Apply；
6th step, in the cable that the nearly port of iron pipe 2 is exposed, take anti-welding spark measure；
7th step, welding operation is grounded by enforcement of regulations；
8th step, detect welding quality；
9th step, remove wet burlap everywhere and carry out japanning processing；
Tenth step, terminate.
Wherein, the 3rd step selection pad, apart from the port of iron pipe 2, distance is not more than 0.02m.
The anti-welding spark of 5th step is splashed into measure, i.e., wet burlap is filled between cable 1 and iron pipe 2 in gap, its
Depth is more than 0.07m.
6th step takes anti-welding spark measure, and packages length is 0.1m-0.15m wet burlap on cable 1.
7th step implements welding, and during using bonding jumper band steel, three face weldings, weld arc length degree is the 2 of band steel width
Times；
During using bonding jumper round steel, two-sided welding, weld arc length degree is 6 times of round steel diameter.
8th step detects welding quality, and detection electrical connection state is tested using equipotential instrument；
Grounding resistance is detected using earth resistance tester.
Further, in the 7th step, connect for iron pipe seam crossing (welding), be symmetrical with using 2-3 bar welding metal bars
Iron pipe axle center implements to weld in iron pipe outer surface, can so reach the purpose of uniform conductive lightning current or Overcurrent.
In summary, the inventive method is implemented, and is ensureing around construction without under inflammable and explosive conditions.This method is adapted to
Improvement project, the electrostatic protection improvement project of electrical equipment, electromagnetic interference shielding improvement project are protected in lightning wave；Avoiding tearing open
Unload, operate efficiently, it is economical, easy in the case of implement cable jacket iron pipe ground connection or the bridging of parallel cable overcoat iron pipe or iron pipe
The welding of seam crossing electrical connection, it can be achieved do not endanger cable, do not destroy cable iron pipe form and layout.In many lightning protection works
Solves the problems, such as site operation with this method in journey, pipe engineering.Pass through on-the-spot test and temporal inspection, this construction skill
Art has obtained good effect, while has also obtained the accreditation of user；Be grounded for lightning protection improvement project cable jacket iron pipe,
Electrically insertion construction provides strong technical support for bridging, connection.
Claims (6)
1. the welding method of cable jacket iron pipe in a kind of earth work, including implement the protection to cable (1) and ground connection overcoat
Iron pipe (2) is grounded the selection of pad, it is characterised in that also comprises the following steps：
When A. constructing, stopping cable (1) transmits electric power or transmission signal；
B. confirm job site without inflammable, explosive factor；
C. pad is selected；
D. paint removal or derusting are carried out to overcoat iron pipe (2) weld；
E. at overcoat iron pipe (2) port, gap takes anti-welding spark to be splashed into measure between cable (1) and iron pipe (2)；
F. the cable exposed in nearly iron pipe (2) port, takes anti-welding spark measure；
G. by enforcement of regulations ground connection welding operation；
H. welding quality is detected；
I. remove wet burlap everywhere and carry out japanning processing；
J. terminate.
2. the welding method of cable jacket iron pipe in a kind of earth work as claimed in claim 1, it is characterised in that the step
Rapid C. selections pad, apart from iron pipe (2) port, distance is not more than 0.02m.
3. the welding method of cable jacket iron pipe in a kind of earth work as claimed in claim 1, it is characterised in that the step
The rapid anti-welding sparks of E. are splashed into measure, i.e., wet burlap are filled between cable (1) and iron pipe (2) in gap, its depth is more than
0.07m。
4. the welding method of cable jacket iron pipe in a kind of earth work as claimed in claim 1, it is characterised in that the step
Rapid F. takes anti-welding spark measure, and packages length is 0.1m-0.15m wet burlap on cable (1).
5. the welding method of cable jacket iron pipe in a kind of earth work as claimed in claim 1, it is characterised in that the step
Rapid G. implements welding, and during using bonding jumper band steel, three face weldings, weld arc length degree is 2 times of band steel width；
During using bonding jumper round steel, two-sided welding, weld arc length degree is 6 times of round steel diameter.
6. the welding method of cable jacket iron pipe in a kind of earth work as claimed in claim 1, it is characterised in that the step
Rapid H. detections welding quality, detection electrical connection situation is tested using equipotential instrument；Detected and be grounded using earth resistance tester
Resistance value.
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| CN201710959771.7A CN107552991A (en) | 2017-10-16 | 2017-10-16 | The welding method of cable jacket iron pipe in a kind of earth work |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108747106A (en) * | 2018-06-04 | 2018-11-06 | 长沙格力暖通制冷设备有限公司 | A kind of the welding protective tooling and its production process of valve body |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87212776U (en) * | 1987-11-10 | 1988-09-28 | 郑传云 | Combined welding cable |
| US5050958A (en) * | 1989-03-06 | 1991-09-24 | Telephone Cables Limited | Optical fibre cable |
| DE10156656A1 (en) * | 2001-11-17 | 2003-06-05 | Gunnar Buerkner | Current connection cable, for a welding burner, has a tubular structure to carry the copper strands in rings around a thinner tube section to be covered by sleeves and a rubber hose, for a gas/coolant to flow through the center |
| CN200987062Y (en) * | 2006-12-29 | 2007-12-05 | 中国南车集团成都机车车辆厂 | Electric cable connector |
| CN201556466U (en) * | 2009-09-28 | 2010-08-18 | 浙江天杰实业有限公司 | Underground armored aluminium tube coaxial cable |
| CN101832435A (en) * | 2010-04-27 | 2010-09-15 | 武汉一冶机电工程有限责任公司 | Method for butting buried cable steel tube on site during construction |
| CN103774766A (en) * | 2014-01-10 | 2014-05-07 | 葛加君 | Thunder and lightning pro-control construction method for intelligent building |
-
2017
- 2017-10-16 CN CN201710959771.7A patent/CN107552991A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87212776U (en) * | 1987-11-10 | 1988-09-28 | 郑传云 | Combined welding cable |
| US5050958A (en) * | 1989-03-06 | 1991-09-24 | Telephone Cables Limited | Optical fibre cable |
| DE10156656A1 (en) * | 2001-11-17 | 2003-06-05 | Gunnar Buerkner | Current connection cable, for a welding burner, has a tubular structure to carry the copper strands in rings around a thinner tube section to be covered by sleeves and a rubber hose, for a gas/coolant to flow through the center |
| CN200987062Y (en) * | 2006-12-29 | 2007-12-05 | 中国南车集团成都机车车辆厂 | Electric cable connector |
| CN201556466U (en) * | 2009-09-28 | 2010-08-18 | 浙江天杰实业有限公司 | Underground armored aluminium tube coaxial cable |
| CN101832435A (en) * | 2010-04-27 | 2010-09-15 | 武汉一冶机电工程有限责任公司 | Method for butting buried cable steel tube on site during construction |
| CN103774766A (en) * | 2014-01-10 | 2014-05-07 | 葛加君 | Thunder and lightning pro-control construction method for intelligent building |
Non-Patent Citations (2)
| Title |
|---|
| 《建筑施工手册》（第四版）编写组: "《建筑施工手册第四版》", 30 June 2003, 中国建筑工业出版社 * |
| 范伟: "《城市桥梁工程施工案例》", 30 November 2013, 中国矿业大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108747106A (en) * | 2018-06-04 | 2018-11-06 | 长沙格力暖通制冷设备有限公司 | A kind of the welding protective tooling and its production process of valve body |
| CN108747106B (en) * | 2018-06-04 | 2020-07-07 | 长沙格力暖通制冷设备有限公司 | Welding protection tool for valve body and manufacturing process thereof |
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