CN203312479U - Clamp-type grounding line with electroscopes - Google Patents
Clamp-type grounding line with electroscopes Download PDFInfo
- Publication number
- CN203312479U CN203312479U CN2013203624116U CN201320362411U CN203312479U CN 203312479 U CN203312479 U CN 203312479U CN 2013203624116 U CN2013203624116 U CN 2013203624116U CN 201320362411 U CN201320362411 U CN 201320362411U CN 203312479 U CN203312479 U CN 203312479U
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- Prior art keywords
- line
- insulating bar
- clamp
- main line
- grounding line
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- Expired - Lifetime
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
A clamp-type grounding line with electroscopes belongs to the technical field of power transmission and distribution engineering. The clamp-type grounding line is composed of three line clamps and a grounding line which is a main line formed by short-circuiting three branch lines. The grounding main line is connected in series with a switch. The grounding line does not need to be grounded during electrical inspection. Each line clamp is composed of a clamp head, an electroscope, an insulated rod and a handle sleeve. Electrical inspection and grounding line clamping can be carried out simultaneously, time difference between electrical inspection and grounding line clamping is eliminated, and major personal and equipment accidents caused by abnormal powering-on during the period are eliminated. The clamp-type grounding line with electroscopes is used in maintenance of power transmission and distribution equipment.
Description
The technical field power transmission and distribution project.
During the maintenance of background technology equipment for power transmission and distribution, be outage → electrical verification → hanging ground-wire by current design criteria, " three-phase shortcircuit ground connection ".Power cutoff device should be that voltage is zero electroless state, should indeed be without electricity as power supply from power supply grid.Problem is that the power autonomous power supply of user is arranged, if after electrical verification before earth connection, the power autonomous startup of user, be commonly called as anti-power transmission, or has next-door neighbour's electrified body to produce induction static, and the equipment of outage still has electricity.Within the time of short duration between " electrical verification " and " earth connection ", there is no ground protection, stop potential safety hazard, for the equipment that uses the flat al wiring of flat copper, " three-phase shortcircuit ground connection " need to have a kind of earth connection of clip with electroscope function.
The purpose of the galvanoscopic clip earth connection of summary of the invention band is: electrical verification and clamping connection ground line locking are carried out.Three phase connections have electrical verification prompting and ground protection while often folding earth connection.The technical scheme adopted is: with three phase connections respectively the wire clamp of clamping connection electroscope all is housed.
With galvanoscopic clip earth connection (accompanying drawing), be to be combined with the clip earth connection by electroscope: have the three branch folder with three branch line lower end short circuits, to become the earth connection of a main line.Every wire clamp is comprised of chuck 1, electroscope 2, insulating bar 3, grip 4.Chuck 1 is connected with insulating bar 3, and grip 4 is contained in the end of insulating bar 3.The handle 8 that is contained in the insulating bar middle part crosses insulating bar 3, pulls the perpendicular pull bar 9 be loaded in insulating bar 3, after clamping plate 11 compression press springs 10 that its end is ined succession, open, on the contrary closed, realize the clamping connection ground wire.Article three, branch line 5 and main line 6 are all annealed copper wires.Article three, branch line 5 upper ends are screwed in respectively with screw on the chuck 1 of three branch folder, and lower end merges short circuit and is connected with main line 6.
During use, sequentially: the switch 7 that 1. disconnects main line 7 series windings.2. main line 7 is connected with earth wire pile.3. press the button of electroscope 2, start electroscope.4. hand-held grip 4, make the jaws rank of chuck 1 live a phase lenticular wire, touches and not tight, and now: electroscope 2 is reported to the police without acousto-optic, and devices illustrated is really without electricity; If any sound and light alarm, devices illustrated has extremely charged, must get rid of, and can carry out subsequent handling.5. in the jaws of chuck 1, hold in the mouth flat line, in tactile and not tight situation, engage the switch 7 of main line 7 series windings; Simultaneously unclasp rapidly handle 8, make the flat line of clamping plate 11 moments clamping.6. all order operations like this of the ground wire clamping connection of two-phase in addition.7. overhaul completely, a hand-held grip 4 pulls handle 8 on the other hand, unclasps clamping plate 11, takes wire clamp; Then could pull down main line 6 from earth wire pile.Finally close electroscope 2, disconnect the switch 7 of main line 6 series windings.8. wipe arrangement, warehouse-in is preserved.
Advantage with galvanoscopic clip earth connection is: 1. electrical verification clamping connection ground line locking is carried out, clamping connection earth clamp 1 synchronously carries out without electricity in electroscope 2 cautions, eliminated the time difference between electrical verification and clamping connection ground wire, thus the personal equipment major accident of stopping to send a telegram here around here and causing.2. before electrical verification, during electrical verification, the switch 7 of ground connection main line 6 series windings is assurances of disconnecting, and electrical verification is carried out when flat line is earth-free.3. stopped the not generation of electrical verification clamping connection ground wire.
Appended drawings is shown and is with galvanoscopic clip ground line configuration schematic diagram.
Embodiment electroscope 2 is loaded on insulating bar 3 middle parts, and its inductive head and chuck 1 join.Switch 7 is connected in series with the earth terminal of main line 6.All the other components and parts are inherited the dependency structures such as existing clip earth connection.
Claims (2)
1. be with galvanoscopic clip earth connection, combined by electroscope and clip earth connection, it is characterized in that: have the three branch folder with three branch line end short circuits, to become the earth connection of a main line; Every wire clamp is comprised of chuck (1), electroscope (2), insulating bar (3), grip (4); Chuck (1) is practiced and is integral with insulating bar (3); Grip (4) is contained in the end of insulating bar (3); The handle (8) that is contained in the insulating bar middle part crosses insulating bar (3), pulls the perpendicular pull bar (9) be loaded in insulating bar (3), after clamping plate (11) compression press springs (10) that its end is ined succession, open, on the contrary closed; Electroscope (2) is loaded on insulating bar (3) middle part, and its inductive head and chuck (1) join.
2. according to claim 1ly be with galvanoscopic clip earth connection, it is characterized in that: three branch lines (5) and main line (6) are all annealed copper wires; Article three, branch line (5) upper end is upper with the chuck (1) that screw is screwed in respectively the three branch folder, and lower end merges short circuit and is connected with main line (6), and switch (7) is connected in series with the earth terminal of main line (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203624116U CN203312479U (en) | 2013-06-14 | 2013-06-14 | Clamp-type grounding line with electroscopes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203624116U CN203312479U (en) | 2013-06-14 | 2013-06-14 | Clamp-type grounding line with electroscopes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203312479U true CN203312479U (en) | 2013-11-27 |
Family
ID=49618654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203624116U Expired - Lifetime CN203312479U (en) | 2013-06-14 | 2013-06-14 | Clamp-type grounding line with electroscopes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203312479U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109455584A (en) * | 2018-01-31 | 2019-03-12 | 国网浙江省电力公司湖州供电公司 | Electroscope insulating cord tail rope spooler |
| CN109455583A (en) * | 2018-01-31 | 2019-03-12 | 国网浙江省电力公司湖州供电公司 | Ground line set draw off gear |
| CN110600906A (en) * | 2019-10-18 | 2019-12-20 | 国家电网有限公司 | Electroscope and earth connection fixing device |
-
2013
- 2013-06-14 CN CN2013203624116U patent/CN203312479U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109455584A (en) * | 2018-01-31 | 2019-03-12 | 国网浙江省电力公司湖州供电公司 | Electroscope insulating cord tail rope spooler |
| CN109455583A (en) * | 2018-01-31 | 2019-03-12 | 国网浙江省电力公司湖州供电公司 | Ground line set draw off gear |
| CN110600906A (en) * | 2019-10-18 | 2019-12-20 | 国家电网有限公司 | Electroscope and earth connection fixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131127 |