CN102025142A - Wiring method for preventing cable TV network from introduced-type lightning stroke - Google Patents
Wiring method for preventing cable TV network from introduced-type lightning stroke Download PDFInfo
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- CN102025142A CN102025142A CN2010105278621A CN201010527862A CN102025142A CN 102025142 A CN102025142 A CN 102025142A CN 2010105278621 A CN2010105278621 A CN 2010105278621A CN 201010527862 A CN201010527862 A CN 201010527862A CN 102025142 A CN102025142 A CN 102025142A
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- signal wire
- wiring method
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Abstract
The invention discloses a wiring method for preventing a cable TV network from introduced-type lightning stroke. Because villages and other remote areas lack of lightning-protection measures, the power line introduced-type lightning is easily caused, and a great quantity of cable TV networks are broken down due to the power line introduced-type lightning. The main reason for the above problem is that a signal wire and a power supply are contacted and intersected after the power line introduced-type lightning. In a room, as for the power line and the signal wire of the cable TV which are mutually intersected and contacted on an intersection, the power line and the signal wire are separated, and the power line and the signal wire of the cable TV are arranged in parallel. By aiming at the shortage in the existing wiring, the method provided by the invention can minimize damage on the cable TV network by the power line introduced-type lightning on the basis that an effective lightening prevention method can not be built through the method that: the power line and the signal wire are separated and arranged in parallel, and induced current generated by power line lightning stroke on the signal wire can be greatly reduced so as to perform the action of preventing lightening and protecting the cable TV network.
Description
Technical field
The invention belongs to the anti-lightning strike field of cable TV network, be specifically related to a kind of circuit of cable TV and relevant device prevents to be introduced into the type thunderbolt when power line is introduced thunderbolt wiring method thereof.
Background technology
In recent years, the climate change impermanence, natural calamity happens occasionally, and the accident of thunderbolt often takes place.In the area that lacks lightning measure, in the ground such as rural area for example, each thunderstorm, the danger of thunderbolt can be arranged all.The current cable network is popularized, the accident that has branch distributor, catv line to damage because of thunderbolt often.
By discovering, cable TV network suffers thunderbolt that two approach are arranged, that is: by in the power line introducing machine, or thunderbolt is introduced cable TV network by antenna-feedback system by cable, these two kinds of large percentages that the thunderbolt approach is shared by electrical network in thunderbolt.Along with increasing thunderbolt teaching machine maintenance in recent years, as seen taking precautions against the effective method that is struck by lightning should be to cut off the thunder and lightning route of entry, concrete measure is: install lightening protection installation additional to exterior aerial, thunder and lightning is introduced the earth, thunderstorm weather is rating not, cuts off power line, cable, netting twine and the audio frequency and video line etc. that are connected with teaching machine.But in some areas that lacks lightning measure, add inadvertent at ordinary times, still can cause branch distributor, catv line to be introduced thunderbolt inadvertently and ruin by power line.
Summary of the invention
The object of the present invention is to provide the wiring method of the anti-introducing type thunderbolt of a kind of cable TV network, this wiring method can effectively avoid branch distributor, catv line to be broken and break because power line is introduced when being struck by lightning.
For achieving the above object, technical scheme of the present invention is: the wiring method of the anti-introducing type thunderbolt of cable TV network, comprise in the room and to intersect mutually and with the holding wire of contacted power line in crosspoint and cable TV, it is characterized in that, with between power line and the holding wire every sky, make the holding wire of power line and the cable TV layout that in same plane, is arranged in parallel.
Adopt the technique effect that technique scheme reached to be: because remote area such as rural area lacks lightning measure, cause power line introducing type thunder easily, a large amount of cable TV networks is struck by lightning disconnected at power line introducing thunder, cable television appliances equipment comprises: optical receiver, amplifier, charger and branch distributor are ruined by thunderbolt.Its chief reason is after power line is introduced thunder, because holding wire and power line are contact and intersect, and the induced current of generation moment on the intersection contact point of holding wire, the fusing of will getting an electric shock.When holding wire and power supply have a crosspoint, can smash optical receiver, amplifier, charger and branch distributor; When holding wire and power supply have two or more crosspoint, can strike off holding wire.Method of the present invention at the deficiency that exists in the existing wiring, is introduced power line the infringement that thunder causes cable TV network and is dropped to minimum can't setting up on the basis of lightning measure effectively; It is parallel with holding wire and distribute every sky to be about to power line, and the induced current that produces because of the power line thunderbolt on the holding wire reduces greatly, thereby has played the lightning protection effect of protecting cable TV network.
Further, in order further to protect cable TV network, the distance between described power line and the catv line is 1cm～10cm.Comprising numerical value such as 3cm, 5cm, 7cm, 9cm, 9.5cm.Can play cable TV network like this prevents by the bad danger of power supply introducing type thunderbolt.
Further, in order to protect cable TV network better, be provided with the block rubber of insulation between described power line and the catv line.The setting of collets can further avoid power supply introducing type thunder that cable TV network is caused damage.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:
Fig. 1 is the wire laying mode that catv line is damaged by power line introducing type thunder easily;
Fig. 2 is the wire laying mode that can avoid catv line to be damaged by power line introducing type thunder.
Embodiment
As shown in Figure 1, intersecting may appear in the present power line 1 and the holding wire 2 of cable TV and a crosspoint is the cabling mode of contact 3, in this case, when the user lacks lightning measure, if power line 1 has been introduced thunder, this time, power line 1 just went out to produce strong magnetic field, induced current can appear on the holding wire 2, faradic direction is the direction along the cross section, therefore, 3 position can fuse holding wire 2 in the contact, even can cause the miscellaneous part optical receiver for example in the whole cable TV network, amplifier, burning of charger and branch distributor.Certainly, when holding wire 2 and power line 1 had plural contact 3, the accident that circuit strikes off can appear in holding wire 3.
As shown in Figure 2, technical scheme of the present invention is avoided the cabling mode that goes wrong, specifically be, with the holding wire 2 parallel cablings of power line 1 and cable TV, and and with the holding wire 2 of power line 1 and cable TV one section space length separately, distance is 9.5cm.Certainly,, the rubber of insulation can be between the holding wire 2 of power line 1 and cable TV, placed, better effect can be played for the consideration of effect.
Above-described only is preferred implementation of the present invention, should be understood that, for a person skilled in the art, under the prerequisite that does not break away from structure of the present invention, can also make some distortion and improvement, for example: the space length of the holding wire 2 of power line 1 and cable TV can be 1cm～10cm, comprising numerical value such as 3cm, 5cm, 7cm, 9cm, 9.5cm.These also should be considered as protection scope of the present invention, and these can not influence effect of the invention process and practical applicability.
Claims (8)
1. cable TV network is prevented the wiring method of introducing type thunderbolt, comprise in the room and to intersect mutually and with the holding wire of contacted power line in crosspoint and cable TV, it is characterized in that, with between power line and the holding wire every sky, make the holding wire of power line and the cable TV layout that in same plane, is arranged in parallel.
2. the wiring method of the anti-introducing type thunderbolt of cable TV network as claimed in claim 1, it is characterized in that: the distance between described power line and the catv line is 1cm～10cm.
3. the wiring method of the anti-introducing type thunderbolt of cable TV network as claimed in claim 2, it is characterized in that: the distance between described power line and the catv line is 3cm～10cm.
4. the wiring method of the anti-introducing type thunderbolt of cable TV network as claimed in claim 3, it is characterized in that: the distance between described power line and the catv line is 5cm～10cm.
5. the wiring method of the anti-introducing type thunderbolt of cable TV network as claimed in claim 4, it is characterized in that: the distance between described power line and the catv line is 7cm～10cm.
6. the wiring method of the anti-introducing type thunderbolt of cable TV network as claimed in claim 5, it is characterized in that: the distance between described power line and the catv line is 9cm～10cm.
7. the wiring method of the anti-introducing type thunderbolt of cable TV network as claimed in claim 6, it is characterized in that: the distance between described power line and the catv line is 9.5cm.
8. as the wiring method of the anti-introducing type thunderbolt of any described cable TV network in the claim 1 to 7, it is characterized in that: the block rubber that is provided with insulation between described power line and the catv line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105278621A CN102025142A (en) | 2010-11-02 | 2010-11-02 | Wiring method for preventing cable TV network from introduced-type lightning stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105278621A CN102025142A (en) | 2010-11-02 | 2010-11-02 | Wiring method for preventing cable TV network from introduced-type lightning stroke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102025142A true CN102025142A (en) | 2011-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105278621A Pending CN102025142A (en) | 2010-11-02 | 2010-11-02 | Wiring method for preventing cable TV network from introduced-type lightning stroke |
Country Status (1)
| Country | Link |
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| CN (1) | CN102025142A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10117409A (en) * | 1996-10-08 | 1998-05-06 | Mitsuru Konuma | Switchboard for lightning protection |
| CN101685955A (en) * | 2008-09-27 | 2010-03-31 | 中国移动通信集团湖南有限公司 | Base station lightning protection system |
-
2010
- 2010-11-02 CN CN2010105278621A patent/CN102025142A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10117409A (en) * | 1996-10-08 | 1998-05-06 | Mitsuru Konuma | Switchboard for lightning protection |
| CN101685955A (en) * | 2008-09-27 | 2010-03-31 | 中国移动通信集团湖南有限公司 | Base station lightning protection system |
Non-Patent Citations (1)
| Title |
|---|
| 臧宏宇: "计算机教学机房的建设与管理", 《白云职业技术学院学报》 * |
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Application publication date: 20110420 |