CN2366960Y - Lightning arrensting knife switch - Google Patents

Abstract

The utility model relates to a lightning protection knife switch. On the basis of the existing ordinary three phase or single phase knife switch, the plate surface of the lower end of a base plate is provided with a pit groove of a transversal profile, which is used for installing a lightning protection device which is composed of two discharge devices which are correspondingly installed and have a certain gap distance. The discharge devices which are made of copper plates are in a saw tooth shape or a sheep horn shape. One discharge device is connected with a binding post of an output power source, and the other discharge device is connected with the earth. The utility model has the advantages of simple structure, good lightning protection effect, low cost and convenient installation and maintenance. The utility model also has the advantages that the existing voltage of a zero line and the earth is eliminated; power utilization safety is ensured; power transmission electric energy wasted by zero line resistance is reduced; the power transmission efficiency is increased.

Description

The Lightning knife swtich switch

The utility model belongs to knife switch, particularly a kind of Lightning knife swtich switch.

In recent years, our mountain area local often generation thunder and lightning was gone into the room along lead and was burnt television set, motor, electric equipment, caused fire.More have even hit the dead person, the phenomenon of wounding the people takes place.Yet commercially available knife switch does not have lightning arrester at present, can not lightning protection.If make a lightning arrester separately, the cost height.

It is a kind of on the basis of existing knife switch that the purpose of this utility model is to provide, and design and installation has the knife switch of lightning arrester simple in structure.

Technical solution scheme of the present utility model is such, and on the basis of existing common three-phase or single-phase knife switch, the base plate under base plate out-put supply joint has the hole groove in a cross section, is used to install lightning arrester.Lightning arrester is installed relatively by two and is had the discharger of certain clearance distance to constitute.Discharger does not contact at ordinary times, has treated thunderstorm hour under the effect of thunder and lightning electric power, gap gas molecule high-speed motion and the ionization that runs foul of each other is introduced the earth with thunder and lightning, and discharger is made goat's horn shape or zigzag fashion with copper coin.A discharger is connected with output wiring terminal, and another discharger is connected with the earth.That is on the out-put supply joint, draw and pick out the discharger that a usefulness copper sheet or conductor are made, relative discharger with another has the certain interval distance, with the discharger that copper sheet or conductor are made thunder and lightning is introduced the earth.Discharger two top between relatively is a tip-angled shape---triangular shape, or zigzag.

The utility model has the advantages that simple in structure, lightning-arrest effective, cost is low, installation and maintenance are convenient, are easy to promote the use of.

Below in conjunction with drawings and Examples the utility model is elaborated.

(discharger of lightning arrester is the goat's horn shape to Fig. 1 for overall structure front view of the present utility model.)

Fig. 2 is an overall structure end view of the present utility model.

Fig. 3 is a zigzag Lightning knife swtich switch front view.

Among Fig. 1, Fig. 2, Fig. 3, discharger (1,2), screw (3,4), ground wire (5), earthing screw (6), output wiring terminal (7), lead-in clamp (8), plug-in strip fulcrum (9), plug-in strip (10), base plate (11), fusible link (12), hole groove (13), plug-in strip hamper nail (14), fixed base plate pilot nail (15).

Application principle of the present utility model: when lead is gone into the room,, thunder and lightning is directly introduced the earth as thunder and lightning, protected electric equipment and person poultry safety by the goat's horn intercuspal space discharge of plug-in strip to discharger.

With reference to Fig. 1, Fig. 2 and Fig. 3, on the basis of existing common three-phase or single-phase knife switch, the hole groove (13) that one cross section is arranged in the plate face below the output wiring terminal (7) of base plate (11), hole groove (13) is used to install lightning arrester, lightning arrester is by two dischargers of installing relatively (1,2) constitute, discharger (1) is made the goat's horn shape with copper cash or copper coin, or zigzag fashion, be fixed in the hole groove (13) with screw (4), connect with every output wiring terminal (7) mutually respectively, discharger (2) is made of one with copper coin with floor (5), is fixed on plate (11) the bottom plate face with screw (3).During installation, the clearance distance that the top of the horn of discharger (1,2) is installed relatively is 4-10mm.The cap seal that lightning arrester is made with iron sheet is tight.When installing and using, earthing screw (6) is connected with the earth.The zero line of user's lighting circuit and the ground wire of lightning arrester (5) are connected, and can eliminate the charged phenomenon of zero line like this, guarantee Electrical Safety.Can also reduce of the loss of zero line resistance, improve power transmission efficiency the transmission of electricity electric energy.

Embodiment, draw on the out-put supply joint (7) of base plate (11) and pick out discharger (1), be that Three-phase knife switch then is the discharger of three similar (1), other is analogized, another relative discharger (2) is connected as a single entity as ground wire (5) with copper coin, draw the access the earth by earthing screw (6), ground wire (5) is fixed on base plate (11) the bottom plate face with screw (3).Discharger (1) is connected with the knife switch binding post, wherein going up discharger (1) is connected with binding post (7), following discharger (2) is connected with ground wire (5), discharger (1,2) two is top relatively up and down is tip-angled shape, or zigzag, two amplifiers (1,2) are installed in hole groove (13) lining of base plate (11) up and down, draw and receive on binding post (7) and the ground wire (5).

Lightning arrester can also be installed in other suitable place of switch baseplate.Or lightning arrester installed in addition do a separate component, it is installed to the suitable place of transmission line.

Claims (1)

1, a kind of Lightning knife swtich switch, comprise base plate (11), plug-in strip (10), lead-in clamp (8), output wiring terminal (7), fusible link (12) etc. and lightning arrester, it is characterized in that having on the bottom plate face of base plate (11) the hole groove (13) in a cross section, be used to install lightning arrester.Lightning arrester is made of two dischargers of installing relatively (1,2), draws on the out-put supply binding post (7) to be connected to discharger (1), is connected with discharger (2) on the ground wire (5).Discharger (1,2) two is equipped with the gap relatively, does not contact mutually, has treated that the ionization that runs foul of each other of thunderstorm hour gap gas molecule high-speed motion under the electric power effect introduces the earth with thunder and lightning.It is gapped between discharger (1,2) two is top relatively, the gap is 4-10mm, discharger (1,2) is zigzag or goat's horn shape, discharger (1) connects with every output wiring terminal (7) mutually, discharger (2) is connected with ground wire (5), and ground wire (5) is fixed on the plate face of base plate (11) below with screw (3);

Lightning arrester can also be installed on other suitable positions of switch baseplate, and can also adorn is a separate component, installs to the suitable place of power transmission line.

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