CN208478008U - The secondary cable and electric energy metering device of electric energy metering device - Google Patents
The secondary cable and electric energy metering device of electric energy metering device Download PDFInfo
- Publication number
- CN208478008U CN208478008U CN201820987639.7U CN201820987639U CN208478008U CN 208478008 U CN208478008 U CN 208478008U CN 201820987639 U CN201820987639 U CN 201820987639U CN 208478008 U CN208478008 U CN 208478008U
- Authority
- CN
- China
- Prior art keywords
- voltage line
- line
- phase
- electric energy
- metering device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The utility model relates to electric energy metering device equipment technical field more particularly to the secondary cables and electric energy metering device of a kind of electric energy metering device.In the secondary cable of electric energy metering device, center voltage line is A phase voltage line, B phase voltage line or C phase voltage line, two A phase current lines in A phase current line group are separately positioned on the opposite two sides of center voltage line, two B phase current lines in B phase current line group are separately positioned on the opposite two sides of center voltage line, two C phase current lines in C phase current line group are separately positioned on the opposite two sides of center voltage line, and the neutral conductor and two mutual inductor detection lines are arranged at the side of center voltage line.Electric energy metering device includes the secondary cable of above-mentioned electric energy metering device.The secondary cable and electric energy metering device of electric energy metering device provided by the utility model have preferable thief-proof electrical property.
Description
Technical field
The utility model relates to the secondary of electric energy metering device equipment technical field more particularly to a kind of electric energy metering device
Cable and electric energy metering device.
Background technique
In order to measure the electricity consumption of client, it (be exactly usually described that electric energy metering device can be installed for client for power supply enterprise
Electric energy meter, batch meter etc.), so electric energy metering device is widely used in every household.
However, the secondary cable of user side electric energy metering device of the existing three-phase and four-line with mutual inductor detection line is thief-proof
Electrical property is poor, and wire structures are easy to by stealing molecule by way of piercing through cable skin be stolen current line short circuit
Electricity compromises the interests of power supply enterprise.
To sum up, how to overcome existing three-phase and four-line with the upper of the secondary cable of the electric energy metering device of mutual inductor detection line
Stating defect is those skilled in the art's technical problem urgently to be resolved.
Utility model content
The purpose of this utility model is to provide a kind of secondary cable of electric energy metering device and electric energy metering devices, with slow
Solve thief-proof electrical property existing for the secondary cable of electric energy metering device of the three-phase and four-line in the prior art with mutual inductor detection line
Poor technical problem.
The secondary cable of electric energy metering device provided by the utility model, including center voltage line, the neutral conductor, A phase current
Line group, B phase current line group, C phase current line group and two mutual inductors detect line.
Wherein, the center voltage line is A phase voltage line, B phase voltage line or C phase voltage line, in the A phase current line group
Two A phase current lines be separately positioned on the opposite two sides of the center voltage line, two B phases in the B phase current line group
Current line is separately positioned on the opposite two sides of the center voltage line, two C phase current lines difference in the C phase current line group
The opposite two sides of the center voltage line are set, and the neutral conductor and two mutual inductor detection lines are arranged at the middle electrocardio
The side of crimping.
Preferably, as an embodiment, the center voltage line is A phase voltage line, the B phase voltage line and institute
State the side that C phase voltage line is looped around the A phase voltage line.
Preferably, as an embodiment, the center voltage line is B phase voltage line, the A phase voltage line and institute
State the side that C phase voltage line is looped around the B phase voltage line.
Preferably, as an embodiment, the center voltage line is C phase voltage line, the A phase voltage line and institute
State the side that B phase voltage line is looped around the C phase voltage line.
Preferably, as an embodiment, the A phase voltage line, the B phase voltage line, the C phase voltage line,
The neutral conductor, the A phase current line, the B phase current line and the C phase current line core be single strand of copper wire.
Preferably, as an embodiment, the A phase voltage line, the B phase voltage line, the C phase voltage line,
The wiring of the neutral conductor, the A phase current line, the B phase current line, the C phase current line and mutual inductor detection line
Structure is in the shape of a spiral.
Preferably, as an embodiment, the secondary cable of the electric energy metering device further includes armouring tape, shield
Cover liner and protection against rodents antiultraviolet sheath, the A phase voltage line, the B phase voltage line, the C phase voltage line, the neutrality
Line, the A phase current line, the B phase current line, the C phase current line and mutual inductor detection line are wrapped in the shield
It covers in liner, the armouring tape is set in lining in the sheath, and the protection against rodents antiultraviolet sheath is set in the armouring
On steel band.
Preferably, as an embodiment, it is filled in the sheath liner and the gap of current line or pressure-wire
PP tearing netted gasket for packing.
Preferably, as an embodiment, the protection against rodents antiultraviolet sheath with a thickness of 1.6mm, the armouring
Steel band with a thickness of 0.2mm, the sheath liner with a thickness of 0.8mm.
Correspondingly, the utility model additionally provides a kind of electric energy metering device, including the secondary of above-mentioned electric energy metering device
Cable further includes electric energy metering device ontology.
The secondary cable is mounted on the electric energy metering device ontology.
Compared with the prior art, the advantages of the utility model are:
The secondary cable of electric energy metering device provided by the utility model is analyzed known to its structure: above-mentioned electrical energy measurement dress
The secondary cable central core pressure-wire set, the neutral conductor, A phase current line group, B phase current line group, C phase current line group and two are mutually
Sensor detects line composition.
In the secondary cable of the electric energy metering device of three-phase and four-line, there are one group of A phase current lines, one group of B phase current line
With one group of C phase current line, stealing molecule wants stealing, needs to be shorted two A phase current lines, two B phase current lines or two C phases
Current line, that is to say, that stealing molecule needs to be pierced through the crust of two A phase current lines with the acicular texture made of conductive material
Two B phase current lines crust or two B phase current lines crust so that short circuit or making two between two A phase current lines
Short circuit or make between two C phase currents short-circuit between root B phase current line；Because two A phase current lines are separately positioned on middle electrocardio
The opposite side of crimping, two B phase current lines are separately positioned on the opposite side of center voltage line, and two C phase current lines are also distinguished
The opposite side of centrally disposed pressure-wire, so stealing molecule pierce through the crust of A phase current line, two B phase current lines it is outer
While the crust of skin or two C phase current lines, the crust of center voltage line can be pierced through, center voltage line and A phase current are caused
Line or B phase current line or C phase current line are shorted；Because being provided with the neutral conductor in secondary cable, therefore A phase voltage line, B phase voltage line
Or having voltage and current in C phase voltage line, center voltage line can choose A phase voltage line, B phase voltage line and C phase voltage line
In any, in the middle when any short circuit in electrocardio crimping and A phase current line, B phase current line and C phase current line, all can
It is on fire to cause electric energy metering device, so that stealing molecule can not succeed, thus, improve thief-proof electrical property.
Therefore, the secondary cable of electric energy metering device provided by the utility model has preferable thief-proof electrical property.
The utility model additionally provides a kind of electric energy metering device, the secondary cable including above-mentioned electric energy metering device, also
Including electric energy metering device ontology；The secondary cable is mounted on the electric energy metering device ontology.
Obviously, electric energy metering device provided by the utility model because include above-mentioned electric energy metering device secondary cable,
And have the advantages that all of the secondary cable of above-mentioned electric energy metering device, it is anti-electricity-theft functional.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is during the secondary cable of electric energy metering device provided by the embodiment of the utility model sets A phase voltage line to
The cross-sectional structure schematic diagram of electrocardio crimping；
Fig. 2 is during the secondary cable of electric energy metering device provided by the embodiment of the utility model sets B phase voltage line to
The cross-sectional structure schematic diagram of electrocardio crimping；
Fig. 3 is during the secondary cable of electric energy metering device provided by the embodiment of the utility model sets C phase voltage line to
The cross-sectional structure schematic diagram of electrocardio crimping.
Icon: 1-A phase voltage line；2-B phase voltage line；3-C phase voltage line；4-A phase current line；5-B phase current
Line；6-C phase current line；The 7- neutral conductor；8- mutual inductor detects line；9-PP tearing netted gasket for packing；10- sheath liner；
11- armouring tape；12- protection against rodents antiultraviolet sheath.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that the side of the instructions such as term " center ", "upper", "inner", "outside"
Position or positional relationship are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description the utility model and simplification is retouched
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it should not be understood as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation "
It shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The connection in portion.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
Concrete meaning.
The utility model is further described in detail below through specific implementation examples and in conjunction with the accompanying drawings.
Embodiment one
Referring to figures 1-3, the present embodiment one provides a kind of secondary cable of electric energy metering device, including center voltage
Line, A phase current line group, B phase current line group, C phase current line group and two mutual inductors detect line 8.
Wherein, the center voltage line is A phase voltage line 1, B phase voltage line 2 or C phase voltage line 3, the A phase current line
Two A phase current lines 4 in group are separately positioned on the opposite two sides of the center voltage line, and two in the B phase current line group
Root B phase current line 5 is separately positioned on the opposite two sides of the center voltage line, two C phase currents in the C phase current line group
Line 6 is separately positioned on the opposite two sides of the center voltage line, and the neutral conductor 7 and two mutual inductor detection lines 8 are all provided with
It sets in the side of the center voltage line.
In the secondary cable of the electric energy metering device of three-phase and four-line, there are one group of A phase current line, 4, one groups of B phase current lines
5 and one group of C phase current line 6, stealing molecule want stealing, need to be shorted two A phase current lines, 4, two B phase current lines 5 or two
Root C phase current line 6, that is to say, that stealing molecule needs to pierce through two A phase current lines with the acicular texture made of conductive material
The crust of the crust or two B phase current lines 5 of 4 crust or two B phase current lines 5, so that short between two A phase current lines 4
Road makes short circuit between two B phase current lines 5 or makes short-circuit between two C phase currents；Because two A phase current lines 4 are distinguished
The opposite side of centrally disposed pressure-wire, two B phase current lines 5 are separately positioned on the opposite side of center voltage line, and two C phases
Current line 6 is also set, respectively on the opposite side of center voltage line, so stealing molecule pierce through A phase current line 4 crust, two
While the crust of the crust of B phase current line 5 or two C phase current lines 6, the crust of center voltage line can be pierced through, center is caused
Pressure-wire and A phase current line 4 or B phase current line 5 or C phase current line 6 are shorted；Because being provided with the neutral conductor 7 in secondary cable, therefore
There is voltage and current in A phase voltage line 1, B phase voltage line 2 or C phase voltage line 3, therefore center voltage line can choose A phase voltage
Any in line 1, B phase voltage line 2 and C phase voltage line 3, electrocardio crimping and A phase current line 4, B phase current line 5 and C phase in the middle
When any short circuit in current line 6, it is on fire all to cause electric energy metering device, so that stealing molecule can not succeed, thus, it mentions
High thief-proof electrical property.
Therefore, the secondary cable for the electric energy metering device that the present embodiment one provides has preferable thief-proof electrical property.
Embodiment two
Referring to figures 1-3, the present embodiment two provides a kind of secondary cable of electric energy metering device, also uses simultaneously
The technical pattern relationship of the secondary cable of electric energy metering device in above-described embodiment one；Such as: the present embodiment two provides one
The secondary cable of kind of electric energy metering device, including center voltage line, A phase current line group, B phase current line group, C phase current line group and
Two mutual inductors detect line 8；Wherein, the center voltage line be A phase voltage line 1, B phase voltage line 2 or C phase voltage line 3, it is described
Two A phase current lines 4 in A phase current line group are separately positioned on the opposite two sides of the center voltage line, the B phase current line
Two B phase current lines 5 in group are separately positioned on the opposite two sides of the center voltage line, and two in the C phase current line group
Root C phase current line 6 is separately positioned on the opposite two sides of the center voltage line, and the neutral conductor 7 and two mutual inductors are visited
Survey line 8 is arranged at the side of the center voltage line.
The secondary cable for the electric energy metering device that the present embodiment two provides, with the electric energy metering device in embodiment one
The primary structure of secondary cable is identical；But the secondary cable of the electric energy metering device of the offer of the present embodiment two has further related to specifically
Structure design；Such as: increase some technical characteristics.
The specific structure and technical effect of technical solution in relation to the present embodiment two are as follows:
Referring to Fig. 1, when setting A phase voltage line 1 for center voltage line, B phase voltage line 2 and C phase voltage line 3 can all rings
It is wound on the side of A phase voltage line 1, as the specific location of B phase voltage line 2 and C phase voltage line 3, can be set as needed,
For example, the opposite two sides of A phase voltage line 1 can be arranged in B phase voltage line 2 and C phase voltage line 3.
Referring to fig. 2, when setting B phase voltage line 2 for center voltage line, A phase voltage line 1 and C phase voltage line 3 can all rings
It is wound on the side of B phase voltage line 2, as the specific location of A phase voltage line 1 and C phase voltage line 3, can be set as needed,
For example, the opposite two sides of B phase voltage line 2 can be arranged in A phase voltage line 1 and C phase voltage line 3.
Referring to Fig. 3, when setting C phase voltage line 3 for center voltage line, A phase voltage line 1 and B phase voltage line 2 can all rings
It is wound on the side of C phase voltage line 3, as the specific location of A phase voltage line 1 and B phase voltage line 2, can be set as needed,
For example, the opposite two sides of C phase voltage line 3 can be arranged in A phase voltage line 1 and B phase voltage line 2.
It preferably, can be by A phase voltage line 1, B phase voltage line 2, C phase voltage line 3, the neutral conductor 7, A phase current line 4, B phase electricity
The core of streamline 5 and C phase current line 6 is all made of to be manufactured for single strand of copper wire, to reduce cost.
It further, can be by A phase voltage line 1, B phase voltage line 2, C phase voltage line 3, the neutral conductor 7, A phase current line 4, B phase
Current line 5, C phase current line 6 and mutual inductor detection line 8 are arranged using spiral helicine wire structures, are stablized with reinforcement structure
Property.
Armouring tape 11 and sheath liner 10 are additionally provided in specific structure, by A phase voltage line 1, B phase voltage line 2, C
Phase voltage line 3, the neutral conductor 7, A phase current line 4, B phase current line 5, C phase current line 6 and mutual inductor detection line 8 are wrapped in sheath
In liner 10, tentatively to be protected using sheath liner 10 to these cables, armouring tape 11 is set in sheath liner 10
On, to increase the mechanical strength of cable, improve erosion prevention.
Particularly, PP tearing netted gasket for packing 9 can be filled in the gap between sheath liner and current line or pressure-wire,
To prevent current line and pressure-wire from shaking in sheath liner；Wherein, PP tearing netted gasket for packing 9 (i.e. polypropylene) is due to structure
Regular and highly crystalline, thus it is heat-resisting, corrosion-resistant, there are higher heat distortion temperature and bigger hardness etc. than polyethylene.
On this basis, it can also set up defences mouse antiultraviolet sheath 12, can be effectively prevented ultraviolet in 11 housing of armouring tape
Line aging prevents mouse from suffering from and bites, and protection against rodents antiultraviolet sheath 12 can be used high-strength rubber and be made.
Further, 1.6mm can be set by the thickness of protection against rodents antiultraviolet sheath 12, the thickness of armouring tape 11 is arranged
For 0.2mm, 0.8mm is set by the thickness of sheath liner 10, to reduce the transversal of cable under the premise of guaranteeing that structure needs
Area and cost.
Embodiment three
Correspondingly, referring to figures 1-3, the present embodiment three provides a kind of electric energy metering device comprising above-described embodiment
The secondary cable of electric energy metering device involved in two (no longer go to live in the household of one's in-laws on getting married one by one by the specific structure of the secondary cable of the electric energy metering device
State), it also while including electric energy metering device ontology；The secondary cable is mounted on the electric energy metering device ontology.
Obviously, the electric energy metering device that the present embodiment three provides is because including the electric energy metering device in above-described embodiment two
Secondary cable, and have the advantages that all of the secondary cable of above-mentioned electric energy metering device, it is anti-electricity-theft functional.
In conclusion the utility model embodiment discloses the secondary cable and electrical energy measurement dress of a kind of electric energy metering device
It sets, which overcome many technological deficiencies of the secondary cable of traditional electric energy metering device.It is provided by the embodiment of the utility model
The secondary cable and electric energy metering device of electric energy metering device have the technical advantages such as good thief-proof electrical property.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments mean it is practical new in this
Within the scope of type and form different embodiments.For example, in claims above, embodiment claimed
It is one of any can in any combination mode come using.The information disclosed in the background technology section is intended only to deepen
Understanding to the general background technology of the utility model, and be not construed as recognizing or implying in any form that the information is constituted
The prior art known to those skilled in the art.In addition, it will be appreciated by those of skill in the art that although described herein
Some embodiments include certain features included in other embodiments rather than other feature, but the spy of different embodiments
The combination of sign means within the scope of the utility model and forms different embodiments.For example, in right above
In claim, embodiment claimed it is one of any can in any combination mode come using.It is disclosed in the back
The information of scape technology segment is merely intended to deepen the understanding to the general background technology of the utility model, and is not construed as holding
Recognize or implies that the information constitutes the prior art known to those skilled in the art in any form.
Claims (10)
1. a kind of secondary cable of electric energy metering device, which is characterized in that including center voltage line, the neutral conductor, A phase current line
Group, B phase current line group, C phase current line group, armouring tape, sheath liner and two mutual inductors detect line；
Wherein, the center voltage line is A phase voltage line, B phase voltage line or C phase voltage line, two in the A phase current line group
Root A phase current line is separately positioned on the opposite two sides of the center voltage line, two B phase currents in the B phase current line group
Line is separately positioned on the opposite two sides of the center voltage line, and two C phase current lines in the C phase current line group are respectively set
In the opposite two sides of the center voltage line, the neutral conductor and two mutual inductor detection lines are arranged at the middle electrocardio
The side of crimping；
The A phase voltage line, the B phase voltage line, the C phase voltage line, the neutral conductor, the A phase current line, the B
Phase current line and the C phase current line are wrapped in the sheath liner, and the armouring tape is set in the sheath liner
On.
2. the secondary cable of electric energy metering device according to claim 1, which is characterized in that the center voltage line is A
Phase voltage line, the B phase voltage line and the C phase voltage line are looped around the side of the A phase voltage line.
3. the secondary cable of electric energy metering device according to claim 1, which is characterized in that the center voltage line is B
Phase voltage line, the A phase voltage line and the C phase voltage line are looped around the side of the B phase voltage line.
4. the secondary cable of electric energy metering device according to claim 1, which is characterized in that the center voltage line is C
Phase voltage line, the A phase voltage line and the B phase voltage line are looped around the side of the C phase voltage line.
5. the secondary cable of electric energy metering device according to claim 1-4, which is characterized in that the A phase electricity
Crimping, the B phase voltage line, the C phase voltage line, the neutral conductor, the A phase current line, the B phase current line and described
The core of C phase current line is single strand of copper wire.
6. the secondary cable of electric energy metering device according to claim 1-4, which is characterized in that the A phase electricity
Crimping, the B phase voltage line, the C phase voltage line, the neutral conductor, the A phase current line, the B phase current line, the C
The wire structures of phase current line and mutual inductor detection line are in the shape of a spiral.
7. the secondary cable of electric energy metering device according to claim 1-4, which is characterized in that further include preventing
Mouse antiultraviolet sheath, the protection against rodents antiultraviolet sheath are set on the armouring tape.
8. the secondary cable of electric energy metering device according to claim 7, which is characterized in that the sheath liner and electric current
PP tearing netted gasket for packing is filled in the gap of line or pressure-wire.
9. the secondary cable of electric energy metering device according to claim 7, which is characterized in that the protection against rodents antiultraviolet shield
Set with a thickness of 1.6mm, the armouring tape with a thickness of 0.2mm, the sheath liner with a thickness of 0.8mm.
10. a kind of electric energy metering device, which is characterized in that including such as described in any item electric energy metering devices of claim 1-9
Secondary cable, further include electric energy metering device ontology；
The secondary cable is mounted on the electric energy metering device ontology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820987639.7U CN208478008U (en) | 2018-06-26 | 2018-06-26 | The secondary cable and electric energy metering device of electric energy metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820987639.7U CN208478008U (en) | 2018-06-26 | 2018-06-26 | The secondary cable and electric energy metering device of electric energy metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208478008U true CN208478008U (en) | 2019-02-05 |
Family
ID=65215290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820987639.7U Active CN208478008U (en) | 2018-06-26 | 2018-06-26 | The secondary cable and electric energy metering device of electric energy metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208478008U (en) |
-
2018
- 2018-06-26 CN CN201820987639.7U patent/CN208478008U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9002423B2 (en) | Superconducting cable | |
| US9634470B2 (en) | Method of constructing a distribution line using an extra-high voltage neutral line | |
| CN103323751B (en) | A kind of high pressure stub cable insulation terminal local discharge test device and using method | |
| CN108445342B (en) | A kind of cable cover(ing) single-point metallicity fault ground induced current calculating method | |
| CN208478008U (en) | The secondary cable and electric energy metering device of electric energy metering device | |
| CN208921768U (en) | The secondary cable and electric energy metering device of electric energy metering device | |
| CN208444629U (en) | The secondary cable and electric energy metering device of electric energy metering device | |
| CN208256305U (en) | The secondary cable and electric energy metering device of electric energy metering device | |
| KR101000081B1 (en) | A 3-phase cable bundle network system | |
| JP2014066666A (en) | Electroconductive rod and testing method for current transformer primary tests | |
| CN106297977A (en) | A kind of shielding line of multiway ground connection | |
| KR20100088481A (en) | A 3-phase cable network system | |
| CN108761167A (en) | Sheath induced current calculates method under a kind of cable metal sheath multiphase multipoint earthing | |
| US20120004788A1 (en) | Heating blanket with control circuit and safety wire | |
| CN202816411U (en) | Remote monitoring break line alarm through grounding wire | |
| CN206564143U (en) | Power cable | |
| CN104299715A (en) | High-voltage transmission power cable high in strength and low in electrical resistivity | |
| TWI627598B (en) | Method and graphical man-machine interface having sheath induced voltages and sheath circulating currents for calculation of transmission and distribution lines | |
| CN205282175U (en) | Medium -voltage shielding cable | |
| CN203773967U (en) | Intrinsic safe round and fanshaped composite cable | |
| CN203377010U (en) | Variable frequency cable | |
| CN102842369B (en) | Safety electric wire | |
| CN204857351U (en) | Lightning arrester | |
| TWM479497U (en) | Cable shield structure of preventing common mode interference by resistance factor | |
| Yuqun et al. | Analysis of the effect on induced voltage initiate by insulated ground wire transposition in double-circuit transmission line on the same tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |