CN209469365U - A kind of substation's equipotential live line work combined type special-purpose ladder - Google Patents
A kind of substation's equipotential live line work combined type special-purpose ladder Download PDFInfo
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- CN209469365U CN209469365U CN201821654465.9U CN201821654465U CN209469365U CN 209469365 U CN209469365 U CN 209469365U CN 201821654465 U CN201821654465 U CN 201821654465U CN 209469365 U CN209469365 U CN 209469365U
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- terraced
- ladder
- substation
- live line
- line work
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- 238000009413 insulation Methods 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 239000003822 epoxy resin Substances 0.000 claims abstract description 4
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 2
- 239000003990 capacitor Substances 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 abstract description 5
- 238000010168 coupling process Methods 0.000 abstract description 5
- 238000005859 coupling reaction Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 10
- 230000005684 electric field Effects 0.000 description 8
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
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Abstract
A kind of substation's equipotential live line work combined type special-purpose ladder, belongs to substation's livewire work technical field.The utility model be it is excessive in order to solve existing insulation vertical ladder safe distance, operating personnel, which does not reach setting, cannot be achieved equipotential live line work, it is also necessary to power failure processing, ultimately cause greater loss and influence system stable operation the problem of.It includes that main terraced one, main terraced second mate's ladder and two groups of insulation branch pull rods, the epoxy resin ellipse tubing that is all made of are made, and has insulating properties, it further includes threaded rod, through-hole, fixing piece and flat steel ladder head.The main ladder of herringbone plays the role of load, and secondary ladder plays the role of effectively increasing combinational gap distance, and insulation branch pull rod plays support and adjusts angle.The utility model terrain clearance and secondary terraced length meet equipotential live line work requirement, therefore can be used for the livewire work repairing and service work of the electrical equipments such as arrester, coupling capacitor and GW7-220 disconnecting link in electric system 66kV and 220kV substation.
Description
Technical field
The utility model relates to a kind of substation's operating equipments, belong to livewire work technical field.
Background technique
According to the principles of electric and electronic engineering, two o'clock in electric field, if point-to-point transmission does not have electric current without potential difference.Equipotential is made
Industry is exactly to utilize this principle, keeps the current potential at each position of livewire work personnel and the current potential with body equal always, between the two
There is no potential differences.Therefore, no electric current flows through the body of operating personnel, to guarantee the personal safety of operating personnel.Due to
Clearance between the alternate and phase and ground of 63 (66) kV and above power circuit and electrical equipment is larger, institute
With equipotential live line work applies in general to the power circuit and electrical equipment of 63 (66) kV and above.
Arrester, coupling capacitor and GW7-220 disconnecting link in electric system 66kV and 220kV substation etc. are electrically set
It is standby in contact troubleshooting and when exiting or putting into operation, cannot be using power failure because substation's band meets intensive and importance
Mode carries out this work, can only be carried out using livewire work mode.Due to the particularity of such device structure, when livewire work
When entering strong electrical field along common insulating ladder, safe distance is not being met equipotential live line work personnel, and then this is caused to work
It cannot complete safely, usually be forced power failure processing, scope of power outage is big, it is wide to involve range, causes greatly to power supply enterprise and society
Loss.
Arrester, coupling capacitor and GW7-220 disconnecting link in electric system 66kV and 220kV substation etc. are electrically set
It is standby, it is all vertical vessel perpendicular to the ground, external insulation is porcelain piece, and insulating ladder cannot be taken on the body, prevents porcelain piece to be broken, i.e.,
Make to ride in porcelain piece, safe distance is also not being met when equipotential live line work personnel enter electric field along insulating ladder.Insulate vertical ladder
It is fixed by the way of lashing, although can satisfy safe distance since apart from excessive, operating personnel does not reach setting
Equipotential cannot be achieved and be also unable to reach maintenance purpose.Finally still power failure is needed to handle, while causing greater loss, to being
System stable operation will also have an adverse effect.
Summary of the invention
The utility model is that the existing insulation vertical ladder safe distance of solution is excessive, is unsatisfactory for safety work regulation about band point
The requirement of operation, it is also necessary to which power failure processing ultimately causes greater loss and influences system stable operation.To propose that one kind can
Meeting safe distance requirement again can make operating personnel be accessible to setting and enter strong electrical field realization equipotential work safely
The combined type special-purpose ladder of industry.
In order to solve the above-mentioned technical problem the utility model adopts the technical scheme that:
A kind of substation's equipotential live line work combined type special-purpose ladder, including main terraced one, main terraced two, secondary ladder, two groups of insulation branch are drawn
Bar, threaded rod, through-hole, fixing piece and flat steel ladder head；Main terraced one, main terraced two and the side wall of secondary ladder be equidistantly fixed with screw thread
Bar, secondary ladder left end are equipped with flat steel ladder head, and insulation branch pull rod both ends are equipped with through-hole, and threaded rod is equipped with fixing piece；Main terraced two
The threaded rod on top is had one's hair cut by flat steel with the left end of secondary ladder and is threadedly coupled, one group of insulation branch pull rod upper end pass through through-hole and
The threaded rod connection of secondary ladder right end, one group of insulation branch pull rod lower end are connect by through-hole with the threaded rod of main terraced two lower end, separately
The through-hole of one group of insulation branch drawing rod via two end is connect with the threaded rod on main terraced one and main terraced two.
The beneficial effects of the utility model are:
1, the utility model insulation branch pull rod is divided into two groups, and the through-hole of one group of insulation branch drawing rod via two end is respectively fitted over master
Ladder one on main terraced two threaded rod, and is fixed with fixing piece in through-hole outer end threadably, is realized and is supported
The effect of main ladder.Insulation branch pull rod both ends through-hole is connect with the threaded rod of main terraced one, main terraced two side walls different height, is realized and is changed
The effect of main ladder whole included angle and height, achievees the effect that increase combinational gap.Another group of insulation branch pull rod upper end passes through
Through-hole is connect with the threaded rod of secondary terraced right end, and lower end is connect by through-hole with the threaded rod of main terraced two lower end, and with fixation
Part is fixed threadably in through-hole outer end, realizes the effect of the secondary ladder of support.Insulate branch pull rod both ends through-hole with
Main terraced two connects with the threaded rod of secondary side of the ladder wall different location, realize that changing secondary ladder raises up angle effect, reach between increase combines
The effect of gap.
2, the utility model, which is reached by insulation branch pull rod with main terraced one, main terraced two and secondary terraced combination, is both able to satisfy peace
Full distance requires that operating personnel can be made to be accessible to setting again and enters the effect that strong electrical field realizes equipotential live line work safely
Fruit.The good epoxide resin material of insulation performance is used due to whole, terrain clearance and secondary terraced length can satisfy electric power
The electrification of the electrical equipments such as arrester, coupling capacitor and GW7-220 disconnecting link in system 66kV and 220kV substation is made
Industry repairing and service work.The utility model has higher stability, insulating properties, the characteristics and advantages of flexibility and reliability.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the utility model partial enlarged view.
Specific embodiment
Specific embodiment 1: illustrating that present embodiment, a kind of substation's equipotential of present embodiment are made in conjunction with Fig. 1~2
Industry combined type special-purpose ladder includes main terraced 1, main terraced 22, secondary terraced 3, two groups of insulation branch pull rods 4, threaded rod 5, through-hole 6, fixing pieces 7
With flat steel ladder head 8；Main terraced 1, main terraced 22 and the side wall of secondary ladder 3 be equidistantly fixed with threaded rod 5,3 left ends of secondary ladder are set
There is flat steel ladder head 8, insulation 4 both ends of branch pull rod are equipped with through-hole 6, and threaded rod 5 is equipped with fixing piece 7；The spiral shell on main terraced 22 top
Rasp bar is threadedly coupled with the left end of secondary ladder 3 by flat steel ladder head 8, and one group of 4 upper end of insulation branch pull rod passes through through-hole 6 and pair ladder
The threaded rod 5 of 3 right ends connects, and lower end is connect by through-hole 6 with the threaded rod 5 of main terraced 22 lower end, and another group of insulation branch is drawn
Bar 4 is connect by the through-hole 6 at both ends with the threaded rod 5 on main terraced 1 and main terraced 22；
Main terraced 1 and main terraced 2 length be that 5.0m plays the role of load and insulation, be that equipotential live line work personnel enter forceful electric power
The main path of field forms the effect of insulation with the earth when realizing same current potential with electrical body.Secondary ladder length is 1.8m, effect
It is effective increasing combinational gap distance, is composed by two or more single gap, to reach increasing clearance distance, is made
Current potential operating personnel enters electric field along the main ladder of herringbone, and before not forming equipotential with electrical body, makes equipotential live line work personnel
Meet enough combinational gap distances, so that it is guaranteed that equipotential live line work personnel safety shift current potential after, into setting carry out
The secure way of operation.
Specific embodiment 2: present embodiment is described further embodiment one, equipotential live line work combined type is special
Combinational gap L with ladder is 1m~2.5m；Combinational gap L is made of S1 and S2, and wherein S1 is equipotential electrician away from ground potential
Minimum range, S2 are minimum range of the equipotential electrician away from live wire.
Specific embodiment 3: present embodiment is described further embodiment two, equipotential live line work combined type is special
It is 2.1m with combinational gap L, the L numerical value of ladder, distance to the ground 2.1m meets arrester, coupling in electric system 220kV substation
Close the band point job requirements of the electrical equipments such as capacitor and GW7-220 disconnecting link.
Specific embodiment 4: present embodiment is described further embodiment one, the minimum of the secondary ladder 3 raises up
Angle is the angle of angle between secondary ladder 3 and level ground, and the maximum angle that raises up is pressed from both sides between described main terraced 22 and level ground
The angle at angle.
Specific embodiment 5: present embodiment is described further embodiment one, the secondary ladder 3 passes through flat steel
Make terraced head 8 and be threaded in main first pedal position in terraced 22 upper end, second pedal position, third pedal position or its
In any one pedal position.
Specific embodiment 6: present embodiment is described further embodiment one, the length of the threaded rod 5 is
5cm~10cm.
Specific embodiment 7: present embodiment is described further embodiment one, described main terraced 1, main terraced two
2, secondary ladder 3 and insulation branch pull rod 4 are all made of epoxy resin tubing and are made.
Working principle: being illustrated with reference to Fig. 1, and livewire work personnel can enter secondary ladder 2 along main terraced the 1 of left side, then passes through pair
Ladder 2 reaches setting after stepping into strong electrical field, forms equipotential live line work after contacting electrical body.Electricity are waited after reaching maintenance purpose
Position operating personnel is detached from electrical body, gradually exits strong electrical field, is then back to ground from main terraced 1, work terminates.
The utility model is not intended to limit the utility model to disclose as above compared with case study on implementation, any to be familiar with
Professional and technical personnel is not departing within the scope of technical solutions of the utility model, when the structure that can use the disclosure above and
Technology contents make a little change or are modified to the equivalence enforcement case of equivalent variations, but all practical new without departing from this
The content of type technical solution, any simple modification that the above case study on implementation is made according to the technical essence of the utility model, etc.
With variation and modification, still belong to technical solutions of the utility model range.
Claims (7)
1. a kind of substation's equipotential live line work combined type special-purpose ladder, it includes main terraced one (1), main terraced two (2) and fixing piece (7),
It is characterized by: it further includes secondary terraced (3), two groups of insulation branch pull rods (4), threaded rod (5), through-hole (6) and flat steel ladder head
(8)；
The side wall of described main terraced one (1), main terraced two (2) and pair terraced (3) is equidistantly fixed with threaded rod (5), on threaded rod (5)
Equipped with fixing piece (7), secondary terraced (3) left end is equipped with flat steel ladder head (8), and the insulation branch pull rod (4) both ends are equipped with logical
The threaded rod (5) in hole (6), described main terraced two (2) top is threadedly coupled with the left end of pair terraced (3) by flat steel ladder head (8),
Insulation branch pull rod (4) upper end described in one group is connect by through-hole (6) with the threaded rod (5) of terraced (3) right end of pair, is insulated described in one group
Branch pull rod (4) lower end is connect by through-hole (6) with the threaded rod (5) of main terraced two (2) lower end, and insulate branch pull rod described in another group
(4) it is connect respectively with the threaded rod (5) on main terraced one (1) and main terraced two (2) by the through-hole (6) at both ends.
2. a kind of substation's equipotential live line work combined type special-purpose ladder according to claim 1, it is characterised in that: the electricity such as substation
The combinational gap L of position job mix formula special-purpose ladder is 1m~2.5m；Combinational gap L is made of S1 and S2, and wherein S1 is equipotential
Minimum range of the electrician away from ground potential, S2 are minimum range of the equipotential electrician away from live wire.
3. a kind of substation's equipotential live line work combined type special-purpose ladder according to claim 2, it is characterised in that: the electricity such as substation
Combinational gap L, the L numerical value of position job mix formula special-purpose ladder is 2.1m.
4. a kind of substation's equipotential live line work combined type special-purpose ladder according to claim 1, it is characterised in that: the secondary ladder
(3) minimum raises up the angle that angle is angle between secondary terraced (3) and level ground, and the maximum angle that raises up is described main terraced two
(2) between level ground angle angle.
5. a kind of substation's equipotential live line work combined type special-purpose ladder according to claim 1, it is characterised in that: the secondary ladder
(3) main terraced two (2) upper ends, first pedal position is threaded in by flat steel ladder head (8), second pedal position, the
Three pedal positions or in which any one pedal position.
6. a kind of substation's equipotential live line work combined type special-purpose ladder according to claim 1, it is characterised in that: the threaded rod
(5) length is 5cm~10cm.
7. a kind of substation's equipotential live line work combined type special-purpose ladder according to claim 1, it is characterised in that: described main terraced one
(1), main terraced two (2), secondary terraced (3) and insulation branch pull rod (4) are all made of epoxy resin tubing and are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821654465.9U CN209469365U (en) | 2018-10-11 | 2018-10-11 | A kind of substation's equipotential live line work combined type special-purpose ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821654465.9U CN209469365U (en) | 2018-10-11 | 2018-10-11 | A kind of substation's equipotential live line work combined type special-purpose ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209469365U true CN209469365U (en) | 2019-10-08 |
Family
ID=68086423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821654465.9U Active CN209469365U (en) | 2018-10-11 | 2018-10-11 | A kind of substation's equipotential live line work combined type special-purpose ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209469365U (en) |
-
2018
- 2018-10-11 CN CN201821654465.9U patent/CN209469365U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191025 Address after: 150010 Heilongjiang city of Harbin province Daoli District Shangzhi Street No. 188 Co-patentee after: State Grid Co., Ltd. Patentee after: Harbin Power Supply Company, State Grid Heilongjiang Electric Power Co., Ltd. Address before: 150010 Heilongjiang city of Harbin province Daoli District Shangzhi Street No. 188 Patentee before: Harbin Power Supply Company, State Grid Heilongjiang Electric Power Co., Ltd. |
|
| TR01 | Transfer of patent right |