CN211579547U - Cable tunnel with strong current cable and weak current cable arranged on same side - Google Patents
Cable tunnel with strong current cable and weak current cable arranged on same side Download PDFInfo
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- CN211579547U CN211579547U CN202020395048.8U CN202020395048U CN211579547U CN 211579547 U CN211579547 U CN 211579547U CN 202020395048 U CN202020395048 U CN 202020395048U CN 211579547 U CN211579547 U CN 211579547U
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Abstract
The utility model discloses a cable tunnel with a strong current cable and a weak current cable arranged at the same side, which comprises wiring groove boxes, wherein a strong current cable and a weak current cable are laid in each wiring groove box, and the strong current cable and the weak current cable in each wiring groove box are isolated by adopting flame-retardant partition plates; an online monitoring device is arranged below the routing groove box on each side of the cable tunnel; the communication cable of each online monitoring device is connected to a monitoring device host in a tunnel working well or a transformer substation through a weak current cable in the wiring box at the same side; and the power supply cable of each online monitoring device is connected to the monitoring device host in the tunnel working well or the transformer substation through the strong electric cable in the wiring box at the same side. The utility model discloses with two sets of on-line monitoring equipment complete separation, really realize that important line protection and safe automatics passageway should be independent mutually, satisfy the requirement of "dual equipment, dual route, dual supply".
Description
Technical Field
The utility model relates to an electric power transmission technical field, in particular to cable tunnel that forceful electric power cable and light current cable homonymy were arranged.
Background
In the existing cable tunnel, routing slot boxes for arranging cables such as communication optical cables, power cables, control cables and the like are generally erected on top-layer cross arms of supports on two sides in the tunnel respectively.
In practical application, the wiring boxes on two sides are respectively used for arranging strong-current cables and weak-current cables.
However, in order to meet the requirement of power grid reliability, two sets of relay protection of the same 220kV and above line and two sets of safety automatic device channels with main/standby relation of the same system are respectively provided by two sets of independent communication transmission equipment and are respectively powered by two sets of independent communication power supplies, and important line protection and safety automatic device channels are provided with two independent routes to meet the requirement of 'double equipment, double routes and double power supplies'. Therefore, the dual-loop cable matching optical cable laid in the tunnel has the requirement that the optical cable is not in different groove boxes.
On the other hand, the cables in the power tunnel are all required to be provided with corresponding on-line monitoring systems, and the on-line monitoring systems are generally arranged on the side of the running cable or the side of the cable joint, namely, an on-line monitoring device is arranged below each routing slot box, and a power cable and a communication optical cable are required to be laid in a combined mode to meet the requirements of power supply and communication transmission.
As shown in fig. 1, due to the above-mentioned monitoring requirements for the power cable and the separate arrangement of the strong and weak wires, it is required that the optical cable or the power line of the on-line monitoring device beside the cable on one side transversely cross into the slot on the bracket on the other side.
The above situation causes the disorder of cable erection in the cable tunnel, hidden dangers are buried for daily maintenance and repair, once accidents such as fire happen to the power equipment on one side, the operation of the equipment on the other side is inevitably influenced, and two sets of safety automatic devices in a main/standby relation are caused to fail.
Therefore, how to eliminate the above safety hazards becomes a technical problem which needs to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defect of prior art, the utility model provides a cable tunnel that forceful electric power cable and light current cable homonymy were arranged, the purpose of realization really realizes that important line protection and safe automatics passageway should be independent mutually, satisfies the requirement of "dual equipment, dual route, dual supply".
In order to achieve the above object, the utility model discloses a cable tunnel that forceful electric power cable and light current cable homonymy were arranged, including set up respectively in walk the wire casing on the cable tunnel both sides support top layer cross arm, each walk the wire casing all is used for setting up communication optical cable, power cable and/or control cable.
Wherein, a strong current cable and a weak current cable are laid in each wiring groove box, and the strong current cable and the weak current cable in each wiring groove box are isolated by adopting a flame-retardant clapboard;
an online monitoring device is arranged below the routing groove box on each side of the cable tunnel;
the communication cable of each online monitoring device is connected to a monitoring device host in a tunnel working well or a transformer substation through the weak current cable in the wiring groove box on the same side;
and the power supply cable of each online monitoring device is connected to the monitoring device host in the tunnel working well or the transformer substation through the strong electric cable in the wiring box at the same side.
Preferably, each routing slot box comprises a box body and a box cover;
each box body is internally provided with a separation groove, and the flame-retardant partition plate is arranged in each separation groove;
each separating groove divides the routing groove box into two wiring spaces with different widths, and the box covers are respectively arranged.
More preferably, the box body and the box cover are both made of glass fiber cloth reinforced phenolic glass fiber reinforced plastic materials.
More preferably, each box body is fixed on the corresponding cross arm through a mounting hole at the bottom by bolts.
The utility model has the advantages that:
the utility model discloses with two sets of on-line monitoring equipment complete separation, really realize that important line protection and safe automatics passageway should be independent mutually, satisfy the requirement of "dual equipment, dual route, dual supply".
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1 shows a schematic structure of the prior art.
Fig. 2 shows a schematic structural diagram of an embodiment of the present invention.
Fig. 3 shows a schematic structural diagram of the wire chase box in an embodiment of the present invention.
Detailed Description
Examples
As shown in fig. 2, the cable tunnel with the strong current cable and the weak current cable arranged on the same side comprises routing slot boxes 1 respectively arranged on the top cross arms of the brackets on both sides of the cable tunnel, and each routing slot box is used for arranging a communication optical cable, a power cable and/or a control cable.
Wherein, a strong current cable 2 and a weak current cable 3 are laid in each wiring slot box 1, and the strong current cable 2 and the weak current cable 3 in each wiring slot box 1 are isolated by a flame-retardant clapboard;
an online monitoring device 4 is arranged below the routing groove box on each side of the cable tunnel;
the communication cable of each online monitoring device 4 is connected to a monitoring device host in a tunnel working well or a transformer substation through a weak current cable 3 in the routing groove box 1 at the same side;
the power supply cable of each online monitoring device 4 is connected to a monitoring device host in a tunnel working well or a transformer substation through a strong current cable 2 in the wiring groove box 1 on the same side.
The principle of the utility model lies in that a flame-retardant baffle is arranged in the wiring groove box 1 at each side of the cable tunnel, so that two cables, namely a strong current cable 2 and a weak current cable 3, are laid in the same wiring groove box 1, and two sets of online monitoring equipment 4 are completely separated; the important line protection and the channels of the safety automatic device are mutually independent, and the requirements of double equipment, double routes and double power supplies are met.
As shown in fig. 3, in some embodiments, each routing box 1 includes a box body 11 and a box cover 12;
a separation groove 13 is formed in each box body 11, and a flame-retardant partition plate is arranged in each separation groove 13;
each separating groove 13 divides the routing groove box 1 into two wiring spaces with different widths, and the box covers 12 are respectively arranged.
More preferably, the box body 11 and the box cover 12 are both made of glass fiber cloth reinforced phenolic glass fiber reinforced plastic material.
More preferably, each box 11 is bolted to the corresponding cross arm through a bottom mounting hole 14.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (4)
1. The cable tunnel with the strong current cable and the weak current cable arranged on the same side comprises routing groove boxes (1) which are respectively arranged on top cross arms of supports on two sides of the cable tunnel, and each routing groove box is used for arranging a communication optical cable, a power cable and/or a control cable; the method is characterized in that:
a strong current cable (2) and a weak current cable (3) are laid in each wiring groove box (1), and the strong current cable (2) and the weak current cable (3) in each wiring groove box (1) are isolated by flame-retardant partition plates;
an online monitoring device (4) is arranged below the routing groove box on each side of the cable tunnel;
the communication cable of each online monitoring device (4) is connected to a monitoring device host in a tunnel working well or a transformer substation through the weak current cable (3) in the routing groove box (1) on the same side;
and a power supply cable of each online monitoring device (4) is connected to a monitoring device host in a tunnel working well or a transformer substation through the strong current cable (2) in the wiring groove box (1) at the same side.
2. A cable tunnel with a strong electric cable and a weak electric cable arranged on the same side as each other in claim 1, wherein each routing box (1) comprises a box body (11) and a box cover (12);
a separation groove (13) is formed in each box body (11), and the flame-retardant partition plate is arranged in each separation groove (13);
each separating groove (13) divides the routing groove box (1) into two wiring spaces with different widths, and the box covers (12) are respectively arranged.
3. A cable tunnel with a strong electric cable and a weak electric cable arranged on the same side as each other in claim 2, wherein the box body (11) and the box cover (12) are both made of glass fiber cloth reinforced phenolic glass fiber reinforced plastic materials.
4. A cable tunnel with a strong electric cable and a weak electric cable arranged on the same side as each other in claim 2, wherein each box body (11) is fixed on the corresponding cross arm through a mounting hole (14) at the bottom by bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020395048.8U CN211579547U (en) | 2020-03-25 | 2020-03-25 | Cable tunnel with strong current cable and weak current cable arranged on same side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020395048.8U CN211579547U (en) | 2020-03-25 | 2020-03-25 | Cable tunnel with strong current cable and weak current cable arranged on same side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211579547U true CN211579547U (en) | 2020-09-25 |
Family
ID=72527184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020395048.8U Active CN211579547U (en) | 2020-03-25 | 2020-03-25 | Cable tunnel with strong current cable and weak current cable arranged on same side |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211579547U (en) |
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2020
- 2020-03-25 CN CN202020395048.8U patent/CN211579547U/en active Active
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