CN201113235Y - Special-purpose switch box for building tower crane - Google Patents
Special-purpose switch box for building tower crane Download PDFInfo
- Publication number
- CN201113235Y CN201113235Y CNU2007200402306U CN200720040230U CN201113235Y CN 201113235 Y CN201113235 Y CN 201113235Y CN U2007200402306 U CNU2007200402306 U CN U2007200402306U CN 200720040230 U CN200720040230 U CN 200720040230U CN 201113235 Y CN201113235 Y CN 201113235Y
- Authority
- CN
- China
- Prior art keywords
- terminal
- circuit breaker
- isolating switch
- wire
- tower crane
- 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.)
- Expired - Fee Related
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to a special switch box for a building tower crane, which consists of an isolating switch, a circuit breaker, a leakage protector, a wire inlet and outlet terminal board, a ground terminal board and a working zero line terminal board; wherein, the isolating switch with obviously visible breaking points can cut off the isolation electric appliances of all the electrodes of the power supply; the circuit breaker is an automatic air switch provided with short-circuit protection and overload protection; the leakage protector is an instantaneous high-speed electromagnetic leakage protector; firstly a power supply inlet wire is connected with an upper terminal of the isolating switch, and the lower terminal of the isolating switch is connected with the upper terminal (the wire inlet terminal) of the circuit breaker by color separation insulated wires; the lower terminal of the circuit breaker (the wire outlet terminal) is connected with the upper terminal (the wire inlet terminal) of the leakage protector by the color separation insulated wires, and the lower terminal of the leakage protector (the wire outlet terminal) is directly connected with a wiring terminal board of the outlet wire by the color separation insulated wires. The application of the switch box can effectively and timely cut off the trouble power supply, thereby ensuring electrical safety.
Description
Affiliated technical field
The utility model relates to a kind of building tower crane special switch case.
Background technology
Existing building tower crane is not generally established the special switch case; and short circuit, overload protection arrangement are set in the electric cabinet at tower crane top, and lacking the earth leakage protective measure, its weak point is: run into accident; can't in time cut off the electricity supply on ground, easily take place to get an electric shock and mechanical accident.Though or on ground the special switch case is set, its electrical installation is provided with unreasonable, isolating switch does not have obviously visible divide breakpoint, all utmost points of can not cutting off the electricity supply simultaneously; no earth leakage protective device; short circuit and overload protection are incomplete, run into when using electrification, can not cut off the electricity consumption power supply timely and effectively.
The utility model content
The purpose of this utility model is that a kind of building tower crane special switch case is provided for the problems referred to above; be provided with in the switch-box and have the obviously visible isolating switch that divides breakpoint, all utmost points of cutting off the electricity supply simultaneously; and setting has automatic air-break switch and the instantaneous earth leakage protective device of high speed, the disengagement failure power supply timely and effectively of short-circuit protection, overload protection.
The technical scheme that its technical problem that solves the utility model adopts is: this device is made up of isolating switch, circuit breaker, earth leakage protective device, outlet terminal board, earth terminal daughter board, working zero line terminal board.Isolating switch is to have the obviously visible isolation electrical equipment that divides breakpoint, all utmost points of cutting off the electricity supply simultaneously.Circuit breaker is the automatic air-break switch with short-circuit protection and overload protection.Earth leakage protective device is instantaneous high-speed type electromagnetic leakage protector.Electric power incoming line at first is connected with the upper terminal of isolating switch, and the lower end of isolating switch links to each other with the upper terminal (end of incoming cables) of circuit breaker with the color separation insulated conductor.The lower terminal of circuit breaker (leading-out terminal) links to each other with the upper terminal (end of incoming cables) of earth leakage protective device with the color separation insulated conductor, and the lower terminal of earth leakage protective device (leading-out terminal) directly links to each other with the leading-out terminal daughter board with the color separation insulated conductor.
Effective effect of the present utility model is; use building tower crane special switch case of the present utility model; be provided with in the switch-box and have the obviously visible isolating switch that divides breakpoint, all utmost points of cutting off the electricity supply simultaneously; and setting has circuit breaker and the instantaneous earth leakage protective device of high speed, the disengagement failure power supply timely and effectively of short-circuit protection and overload protection.
Description of drawings
Fig. 1 is the front view of building tower crane special switch case of the present utility model.
1-isolating switch among the figure, 2-circuit breaker, 3-earth leakage protective device, 4-earth terminal daughter board, 5-working zero line terminal board, 6-color separation insulated conductor, 7-outlet terminal board.
Specific implementation method
This device is made up of isolating switch (1), circuit breaker (2), earth leakage protective device (3), earth terminal daughter board (4), working zero line terminal board (5), outlet terminal board (7).Isolating switch (1) is for having the obviously visible HD type isolation switch that divides breakpoint, all utmost points of cutting off the electricity supply simultaneously.Circuit breaker is the DZ series automatic air-break switch with short-circuit protection and overload protection.Earth leakage protective device is the instantaneous high-speed type electromagnetic leakage of a DZLE15 type protector, and residual operating current is 30mA, operate time 0.1s.Electric power incoming line at first is connected with the upper terminal of isolating switch (1), and the lower end of isolating switch (1) links to each other with the upper terminal (end of incoming cables) of circuit breaker (2) with color separation insulated conductor (6).The lower terminal (leading-out terminal) of circuit breaker (2) links to each other with the upper terminal (end of incoming cables) of earth leakage protective device (3) with color separation insulated conductor (6), and the lower terminal (leading-out terminal) of earth leakage protective device (3) directly uses color separation insulated conductor (6) to link to each other with leading-out terminal daughter board (7).Color separation insulated conductor (6) between in-box electric appliance adopts yellow (A phase), green (B phase), red (C phase), light blue (N line) respectively.
Claims (4)
1. building tower crane special switch case; it is characterized in that: this device is made up of isolating switch, circuit breaker, earth leakage protective device, outlet terminal board, earth terminal daughter board, working zero line terminal board; isolating switch is arranged on the mains side of circuit; earth leakage protective device is arranged on the load side of circuit, and circuit breaker is located between isolating switch and the earth leakage protective device.
2. building tower crane special switch case according to claim 1 is characterized in that: the isolating switch of setting has obviously visible divide breakpoint, all utmost points of cutting off the electricity supply simultaneously.
3. building tower crane special switch case according to claim 1, it is characterized in that: the circuit breaker of setting has short-circuit protection and overload protection function.
4. building tower crane special switch case according to claim 1 is characterized in that: the earth leakage protective device of setting is the instantaneous type of high speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200402306U CN201113235Y (en) | 2007-07-04 | 2007-07-04 | Special-purpose switch box for building tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200402306U CN201113235Y (en) | 2007-07-04 | 2007-07-04 | Special-purpose switch box for building tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201113235Y true CN201113235Y (en) | 2008-09-10 |
Family
ID=39964977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200402306U Expired - Fee Related CN201113235Y (en) | 2007-07-04 | 2007-07-04 | Special-purpose switch box for building tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201113235Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560424A (en) * | 2013-11-19 | 2014-02-05 | 国家电网公司 | Load control switching device of emergency power supply vehicle |
| CN110120635A (en) * | 2018-02-07 | 2019-08-13 | 五冶集团上海有限公司 | One kind being used for construction site water proof and dust proof distribution box |
-
2007
- 2007-07-04 CN CNU2007200402306U patent/CN201113235Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560424A (en) * | 2013-11-19 | 2014-02-05 | 国家电网公司 | Load control switching device of emergency power supply vehicle |
| CN110120635A (en) * | 2018-02-07 | 2019-08-13 | 五冶集团上海有限公司 | One kind being used for construction site water proof and dust proof distribution box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080910 Termination date: 20160704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |