CN102983539A

CN102983539A - Electrification ground potential lighting arrester installation safe line card

Info

Publication number: CN102983539A
Application number: CN2012104413733A
Authority: CN
Inventors: 牛书坤; 李海勤; 李团飞; 张聪燕
Original assignee: YICHUAN ELECTRIC POWER BUREAU
Current assignee: YICHUAN ELECTRIC POWER BUREAU
Priority date: 2012-11-08
Filing date: 2012-11-08
Publication date: 2013-03-20

Abstract

The invention relates to a line card, in particular to an electrification ground potential lighting arrester installation safe line card. One end of a movable piece (16) is connected on a straight bar inner wall of a hook (19) of a J-shaped structure through a return spring 1, and the other end of the movable piece (16) is abutted against the bent hook end portion of the hook (19). One side of an annular handle (9) is connected with a lower end connecting piece (14) at the lower end of the straight bar of the hook (19), and one end of a ground lead (11) is fixed between the lower end connecting piece (14) and the annular handle (9). An electroscope (5) is arranged on the outer side face of the straight bar of the hook (19), and the electroscope (5) is communicated with the hook (19) through a connecting wire (6). According to the electrification ground potential lighting arrester installation safe line card, the electroscope is arranged on the line card, and therefore current situations of a wire in the process of operation or after operation can be displayed in real-time by the electroscope, and safety of workers in the process of electrification maintenance can be guaranteed effectively.

Description

A kind ofly chargedly at earthy lightning arrester safe ply-yarn drill is installed

[technical field]

The present invention relates to a kind of ply-yarn drill, especially relate to a kind of foot-operated relay protection small bus cutting nipper.

[background technology]

Known, thunder and lightning is one of main inducing that causes power grid accident, in the mountain area more so, in order to take precautions against thunder and lightning to the impact of electrical network, is one of method of effectively dissolving thunder and lightning so leakage conductor is installed on the line; In order to reduce the loss that has a power failure to the client, and the normal operation that live line working can keeping system, live line working is comparatively common, yet the how to do well safety precaution is the main R﹠D direction of power department during hotline maintenance.

[summary of the invention]

In order to realize described goal of the invention, the invention discloses and a kind ofly chargedly at earthy lightning arrester safe ply-yarn drill is installed, the present invention is by arranging electroscope at ply-yarn drill, so that electroscope shows the current conditions of wire, operating personnel's safety problem when effectively having guaranteed hotline maintenance in real time during operation or after the operation.

In order to realize described goal of the invention, the present invention adopts following technical scheme:

A kind ofly chargedly at earthy lightning arrester safe ply-yarn drill is installed, comprise hook, activity template, electroscope, annular hand grip and earth connection, described hook is " J " shape structure, one end of activity template is connected to by return spring on the straight-bar inwall of the described hook of " J " shape structure, and the described activity template other end withstands on the crotch end of hook; Annular hand grip is the insulation material, one side of annular hand grip is connected in flakes with the lower end of hook straight-bar lower end, one end of earth connection is fixed on the lower end in flakes and between the annular hand grip, is provided with electroscope at the straight-bar lateral surface of linking up with, and described electroscope is communicated with hook by connecting electric wire.

Describedly chargedly at earthy lightning arrester safe ply-yarn drill is installed, the annular hand grip of described insulation material is nylon; Or wooden; Or rubber.

Describedly chargedly at earthy lightning arrester safe ply-yarn drill is installed, end at activity template is provided with clamping ring, Connection Block is arranged on the upper end of connecting plate, the clamping ring of activity template one end is by the hinged described Connection Block of axle, return spring is through on the described axle and two support ends of described return spring withstand on respectively on the face of the bottom of activity template and connecting plate, the plate body of connecting plate is provided with at least two chamfered bore, at least two described chamfered bore of passing successively connecting plate of lock screw B, the screw A that connects the electroscope back behind the perforation A of the upper setting of described hook straight-bar, galvanoscopic connection wire end is wrapped on arbitrary lock screw B, and the realization electroscope is communicated with hook.

Describedly chargedly at earthy lightning arrester safe ply-yarn drill is installed, the lower end that arranges in hook straight-bar lower end in flakes lateral surface is provided with groove, the annular hand grip lateral surface is provided with the groove of corresponding hook groove, be respectively equipped with at least one perforation B in the described groove of hook both sides, described annular hand grip groove both sides are respectively equipped with at least one screw B, lock screw A passes the described screw B of perforation B back clevis shape handle, and earth connection one end is in described annular hand grip groove and the lower end described groove in flakes.

Describedly chargedly at earthy lightning arrester safe ply-yarn drill is installed, is provided with suspension ring at the chimoto of the described hook of " J " shape structure.

Owing to adopted technique scheme, the present invention to have following beneficial effect:

Of the present inventionly chargedly at earthy lightning arrester safe ply-yarn drill is installed, electroscope with respect to prior art setting of the present invention can show the wire electric weight intuitively, namely just can load onto smoothly or take off ply-yarn drill of the present invention by brief power-off time; Wherein the unique design of activity template can realize that wire need not manually just can to tighten or take out, and electroscope shows the current conditions of wire, operating personnel's safety problem when effectively having guaranteed hotline maintenance in real time when being very easy to operating personnel's operation or after the operation.

[description of drawings]

Fig. 1 is assembly structure schematic diagram of the present invention.

Fig. 2 is structural representation of the present invention.

Among the figure: 1, return spring; 2, Connection Block; 3, chamfered bore; 4, screw A; 5, electroscope; 6, connect electric wire; 7, perforation A; 8, groove; 9, annular hand grip; 10, screw B; 11, earth connection; 12, perforation B; 13, lock screw A; 14, the lower end in flakes; 15, lock screw B; 16, activity template; 17, clamping ring; 18, suspension ring; 19, hook.

[embodiment]

By the following examples can be detailed explanation the present invention, disclose purpose of the present invention and be intended to protect all technological improvements in the scope of the invention,

1 or 2 describedly chargedly at earthy lightning arrester safe ply-yarn drill is installed by reference to the accompanying drawings, comprise hook 19, activity template 16, electroscope 5, annular hand grip 9 and earth connection 11, described hook 19 is " J " shape structure, chimoto at the described hook 19 of " J " shape structure is provided with suspension ring 18, end at activity template 16 is provided with clamping ring 17, Connection Block 2 is arranged on the upper end of connecting plate, the clamping ring 17 of activity template 16 1 ends is by the hinged described Connection Block 2 of axle, return spring 1 is through on the described axle and two support ends of described return spring 1 withstand on respectively on the face of the bottom of activity template 16 and connecting plate, the plate body of connecting plate is provided with at least two chamfered bore 3, at least two described chamfered bore 3 of passing successively connecting plate of lock screw B15, the screw A4 that connects electroscope 5 backs behind the perforation A7 of the upper setting of described hook 19 straight-bars, connection electric wire 6 ends of described electroscope 5 are wrapped on arbitrary lock screw B15, realization electroscope 5 is communicated with hook 19, and described activity template 16 other ends withstand on the crotch end of hook 19; Annular hand grip 9 is the nylon of insulation material; Or wooden; Or rubber is made; The lower end that arranges in hook 19 straight-bar lower ends in flakes 14 lateral surfaces is provided with groove, annular hand grip 9 lateral surfaces are provided with the groove 8 of corresponding hook 19 grooves, be respectively equipped with at least one perforation B12 in hook 19 described groove both sides, described annular hand grip 9 grooves 8 both sides are respectively equipped with at least one screw B10, lock screw A13 passes the described screw B10 of perforation B12 back clevis shape handle 9, and earth connection 11 1 ends are in described annular hand grip 9 grooves 8 and lower end in flakes in 14 the described groove.

Implement of the present inventionly chargedly at earthy lightning arrester safe ply-yarn drill to be installed, in daily operation, in order in time to find the inner invisible defect of lightning arrester, the unit of managing and protecting needed to carry out one time preventive trial before annual thunderstorm season; Lightning arrester is in parallel with distribution transforming when normal operation, upper end link, lower end ground connection; When the loading and unloading lightning arrester, utilize the present invention link up with 19 and activity template 16 between movable muzzle card wire, earth connection 11 other end ground connection, the workmen begins to overhaul lightning arrester, main lead-in wire and the down conductor that checks lightning arrester, there are burn vestige and disconnected burst of phenomenon and discharge counter whether to burn inspection by this respect, the invisible defect of the easiest discovery lightning arrester; Check whether the lead-in wire place sealing of lightning arrester upper end is good, the lightning arrester poor sealing can easily cause accident by watered and wetting, thereby whether the cement joint close that should check insulator and flange connections is tight, can install bucker additional to lead-in wire place on 10 kilovolts of valve-type arresters, in order to avoid rainwater infiltrates; Check whether the electrical distance between lightning arrester and the protected electric equipment meets the requirements, and lightning arrester should be tried one's best near protected electric equipment, and lightning arrester is answered the action situation of inspection record device behind thunderstorm; The leak check electric current when power-frequency sparkover voltage is greater than or less than standard value, should overhaul and test; When the discharge counter action frequency is too much, should overhaul; Insulator and cement joint have crackle; Ring flange and rubber are lined with when coming off, and should overhaul.The insulation resistance of lightning arrester should regularly check.Use 2500 volts of insulating meggers during measurement, the numerical value that side gets with previous result relatively, can continue during without significant change to put into operation.When insulation resistance significantly descends, generally be made moist by poor sealing or spark gap short caused, when being lower than acceptance value, should make attribute testing; When insulation resistance significantly raises, generally be because internal parallel electricity, resistance loose contact or fracture and relaxing of spring separate with inner member etc. and to cause.

After above-mentioned service work is finished, observe current conditions by electroscope 5, confirms just can take off after errorless, mention annular hand grip 9 on namely, activity template 16 stressed rear other ends declines just can have been taken off.

Part not in the detailed description of the invention is prior art.

Claims

1. chargedly at earthy lightning arrester safe ply-yarn drill is installed for one kind, comprise hook (19), activity template (16), electroscope (5), annular hand grip (9) and earth connection (11), it is characterized in that: described hook (19) is " J " shape structure, one end of activity template (16) is connected to by return spring 1 on the straight-bar inwall of the described hook of " J " shape structure (19), and described activity template (16) other end withstands on the crotch end of hook (19); Annular hand grip (9) is the insulation material, the lower end of one side of annular hand grip (9) and hook (19) straight-bar lower end in flakes (14) is connected, one end of earth connection (11) is fixed on the lower end in flakes between (14) and the annular hand grip (9), straight-bar lateral surface at hook (19) is provided with electroscope (5), and described electroscope (5) is communicated with hook (19) by connecting electric wire (6).

2. according to claim 1ly chargedly at earthy lightning arrester safe ply-yarn drill is installed, it is characterized in that: the annular hand grip of described insulation material (9) is nylon; Or wooden; Or rubber.

3. according to claim 1ly chargedly at earthy lightning arrester safe ply-yarn drill is installed, it is characterized in that: the end at activity template (16) is provided with clamping ring (17), Connection Block (2) is arranged on the upper end of connecting plate, the clamping ring (17) of activity template (16) one ends is by the hinged described Connection Block of axle (2), return spring (1) is through on the described axle and two support ends of described return spring (1) withstand on respectively on the face of the bottom of activity template (16) and connecting plate, the plate body of connecting plate is provided with at least two chamfered bore (3), at least two lock screw B(15) described chamfered bore (3) of passing successively connecting plate, the perforation A(7 of the upper setting of described hook (19) straight-bar) the screw A(4 that connects electroscope (5) back after), connection electric wire (6) end of electroscope (5) is wrapped in arbitrary lock screw B(15) on, realize electroscope (5) and link up with being communicated with of (19).

4. according to claim 1ly chargedly at earthy lightning arrester safe ply-yarn drill is installed, it is characterized in that: the lower end that arranges in hook (19) straight-bar lower end in flakes (14) lateral surface is provided with groove, annular hand grip (9) lateral surface is provided with the groove (8) of corresponding hook (19) groove, be respectively equipped with at least one perforation B(12 in hook (19) described groove both sides), described annular hand grip (9) groove (8) both sides are respectively equipped with at least one screw B(10), lock screw A(13) pass perforation B(12) the described screw B(10 of back clevis shape handle (9)), earth connection (11) one ends are in described annular hand grip (9) groove (8) and lower end in flakes in the described groove of (14).

5. according to claim 1ly chargedly at earthy lightning arrester safe ply-yarn drill is installed, it is characterized in that: the chimoto at the described hook of " J " shape structure (19) is provided with suspension ring (18).