CN212808561U - A electric leakage alarm device for job site fire-fighting line uses - Google Patents
A electric leakage alarm device for job site fire-fighting line uses Download PDFInfo
- Publication number
- CN212808561U CN212808561U CN202021024243.6U CN202021024243U CN212808561U CN 212808561 U CN212808561 U CN 212808561U CN 202021024243 U CN202021024243 U CN 202021024243U CN 212808561 U CN212808561 U CN 212808561U
- Authority
- CN
- China
- Prior art keywords
- electric leakage
- fire
- construction site
- audible
- alarm
- 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.)
- Active
Links
Images
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model relates to the field of temporary electricity utilization in construction, in particular to an electric leakage alarm device for a fire-fighting line in a construction site, which is suitable for a fire-fighting water supply and electricity utilization system with the AC frequency of 50Hz and the working voltage of 220v/380v in the construction site, and comprises an electric leakage inductor and an audible and visual alarm; audible-visual annunciator installs in the outside of total block terminal, audible-visual annunciator passes through a plurality of wires and leakage inductor electric connection. The utility model has simple principle, quick installation and convenient experience; the recycling rate is high, and the device is not easy to damage, safe and reliable; the operation is simple and the action is sensitive; the alarm is timely, and people can be timely reminded to prevent electric shock accidents.
Description
Technical Field
The utility model discloses the interim power consumption field of construction specifically is a leakage alarm device for job site fire control circuit uses.
Background
At present, in the field of domestic constructional engineering, a fire water pressurizing device, namely a 'fire pump', is generally required to be arranged on a construction site. According to the regulations of the technical Specification for fire safety of construction engineering construction sites (GB50720-2011), a fire pump power line is connected from the upper end of a main breaker of a main distribution box to keep uninterrupted power supply, but the construction site has a complex power utilization environment and numerous leakage factors, and the phenomenon of leakage of a fire line occurs inevitably, so that electric shock accidents of personnel can be caused.
Therefore, in view of the above situation, there is an urgent need to develop an electric leakage alarm device for a fire protection line in a construction site to overcome the shortcomings in the current practical application.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electric leakage alarm device for job site fire control circuit uses to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
an electric leakage alarm device for a fire-fighting line on a construction site is suitable for a fire-fighting water supply and electricity utilization system with the construction site alternating current frequency of 50Hz and the working voltage of 220v/380v, and comprises an electric leakage inductor and an audible and visual alarm; audible-visual annunciator installs in the outside of total block terminal, audible-visual annunciator passes through a plurality of wires and leakage inductor electric connection.
As a further aspect of the present invention: the inlet end of the leakage inductor is connected into three live wires from the upper end of a main breaker in a general distribution box of a construction site, and is connected into a protection zero line from a protection zero bar, and the outlet end of the leakage inductor is connected into a fire pump control box.
As a further aspect of the present invention: the rated frequency of the leakage inductor is 50Hz, the rated voltage is 220V or 380V, the rated current is 160A, the rated leakage current is 30mA, and the action time is 0.1 s.
As a further aspect of the present invention: the audible and visual alarm comprises a red alarm lamp and a buzzer.
As a further aspect of the present invention: four wiring terminals for wire connection are arranged on the electric leakage inductor and the audible-visual annunciator.
As a further aspect of the present invention: the surface of the electric leakage inductor is provided with a manual switch, a test button, a reset button and an audible and visual alarm.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the principle is simple, the installation is quick, and the experience is convenient;
2. the recycling rate is high, and the device is not easy to damage, safe and reliable;
3. the operation is simple and the action is sensitive;
4. the alarm is timely, and people can be timely reminded to prevent electric shock accidents.
Drawings
Fig. 1 is a schematic structural diagram of an electric leakage alarm device used for a fire-fighting line on a construction site.
Fig. 2 is a schematic diagram of the line connection of an electric leakage sensor and an audible and visual alarm in the electric leakage alarm device for a fire line in a construction site.
In the figure: 1-electric leakage inductor, 2-main breaker, 3-audible and visual alarm, 4-test button, 5-reset button and 6-wiring terminal.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1
Referring to fig. 1-2, in the embodiment of the present invention, an electric leakage alarm device for a fire-fighting line in a construction site is suitable for a fire-fighting water supply system with a construction site ac frequency of 50Hz and a working voltage of 220v/380v, and includes an electric leakage inductor 1 and an audible and visual alarm 3; the inlet end of the electric leakage inductor 1 is connected with three live wires from the upper end of a main circuit breaker 2 in a main distribution box of a construction site, a protection zero line is connected from a protection zero row, and the outlet end of the electric leakage inductor 1 is connected with a fire pump control box;
the audible and visual alarm 3 is arranged on the outer side of the main distribution box, and the audible and visual alarm 3 is electrically connected with the electric leakage inductor 1 through a plurality of conducting wires;
specifically, in this embodiment, four wiring terminals 6 for connecting wires are respectively arranged on the electric leakage inductor 1 and the audible and visual alarm 3;
the rated frequency of the electric leakage inductor 1 is 50Hz, the rated voltage is 220V or 380V, the rated current is 160A, the rated electric leakage current is 30mA, the action time is 0.1s, and the audible and visual alarm 3 comprises a red alarm lamp and a buzzer;
the leakage inductor 1 induces a leakage current IΔnWhen the current is more than or equal to 30mA, the audible and visual alarm 3 starts to alarm in an audible and visual mode within 0.1S, the red alarm lamp is flashing, and the buzzer sounds intermittently;
the surface of the electric leakage inductor is provided with a manual switch, a test button 4 and a reset button 5,
example 2
Referring to fig. 1-2, in the embodiment of the present invention, an electric leakage alarm device for a fire-fighting line in a construction site is suitable for a fire-fighting water supply system with a construction site ac frequency of 50Hz and a working voltage of 220v/380v, and includes an electric leakage inductor 1 and an audible and visual alarm 3; the inlet end of the electric leakage inductor 1 is connected with three live wires from the upper end of a main circuit breaker 2 in a main distribution box of a construction site, a protection zero line is connected from a protection zero row, and the outlet end of the electric leakage inductor 1 is connected with a fire pump control box;
the audible and visual alarm 3 is arranged on the outer side of the main distribution box, and the audible and visual alarm 3 is electrically connected with the electric leakage inductor 1 through a plurality of conducting wires;
specifically, in this embodiment, four wiring terminals 6 for connecting wires are respectively arranged on the electric leakage inductor 1 and the audible and visual alarm 3;
the rated frequency of the electric leakage inductor 1 is 50Hz, the rated voltage is 220V or 380V, the rated current is 160A, the rated electric leakage current is 30mA, the action time is 0.1s, and the audible and visual alarm 3 comprises a red alarm lamp and a buzzer;
the leakage inductor 1 induces a leakage current IΔnWhen the current is more than or equal to 30mA, the audible and visual alarm 3 starts to alarm in an audible and visual mode within 0.1S, the red alarm lamp is flashing, and the buzzer sounds intermittently;
the present embodiment is different from embodiment 1 in that:
there are hand switch, test button 4 and reset button 5 on the electric leakage inductor surface, audible-visual annunciator 3 is because of when electric leakage was reported to the police, and fire power supply does not cut off the power supply, need stir hand switch this moment and just can stop reporting to the police, through whether safe effective work of periodic press test button 4 detectable electric leakage alarm device, presses reset button 5 after the experiment and can stop reporting to the police.
The working principle of the electric leakage alarm device used for the fire-fighting line on the construction site is as follows:
when the fire-fighting line has electric leakage, the electric leakage inductor 1 induces the electric leakage current IΔnWhen the current is more than or equal to 30mA, the audible and visual alarm 3 starts to give an alarm in an audible and visual mode within 0.1S, the red alarm lamp is flashed, the buzzer sounds intermittently, and personnel are reminded of leakage of electricity in a fire fighting line and need to be powered off for maintenance, so that the personnel are prevented from getting an electric shock;
when the audible and visual alarm 3 gives an alarm due to electric leakage, the fire-fighting power supply is not powered off, the relevant regulations that the fire-fighting water needs to be supplied continuously are met, the alarm can be stopped only by turning the manual switch, and after the electric leakage fault is eliminated, the leakage inductor is in a normal standby state again by pressing the reset button 5; the electric leakage inductor is provided with a test button 4, whether the electric leakage alarm device works safely and effectively can be detected by regularly pressing the test button 4, and the alarm can be stopped by pressing a reset button 5 after the test.
The above is only the preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.
Claims (6)
1. An electric leakage alarm device for a fire-fighting line on a construction site is characterized by being suitable for a fire-fighting water supply and electricity utilization system with the construction site alternating current frequency of 50Hz and the working voltage of 220v/380v, and comprising an electric leakage inductor (1) and an acousto-optic alarm (3); audible-visual annunciator (3) are installed in the outside of total block terminal, audible-visual annunciator (3) through a plurality of wires and leakage inductor (1) electric connection.
2. The electric leakage alarm device for the fire fighting line at the construction site according to claim 1, wherein the inlet end of the electric leakage inductor (1) is connected to three live wires from the upper end of a main breaker (2) in a main distribution box at the construction site, the protection zero line is connected to the protection zero line from the protection zero line, and the outlet end of the electric leakage inductor (1) is connected to a fire water pump control box.
3. The electric leakage alarm device for the fire fighting line at the construction site according to claim 1, wherein four connecting terminals (6) for wire connection are arranged on each of the electric leakage inductor (1) and the acousto-optic alarm (3).
4. The electric leakage alarm device for the fire protection line on the construction site as claimed in claim 1, wherein the rated frequency of the electric leakage inductor (1) is 50Hz, the rated voltage is 220V or 380V, the rated current is 160A, the rated electric leakage current is 30mA, and the action time is 0.1 s.
5. The electrical leakage warning device for a fire fighting line at a construction site as claimed in claim 1, wherein the audible and visual alarm (3) comprises a red warning lamp and a buzzer.
6. The electric leakage alarm device for the fire fighting line on the construction site according to any one of claims 1 to 5, characterized in that the electric leakage inductor is provided with a manual switch, a test button (4) and a reset button (5) on the surface, and an audible and visual alarm (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021024243.6U CN212808561U (en) | 2020-06-05 | 2020-06-05 | A electric leakage alarm device for job site fire-fighting line uses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021024243.6U CN212808561U (en) | 2020-06-05 | 2020-06-05 | A electric leakage alarm device for job site fire-fighting line uses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212808561U true CN212808561U (en) | 2021-03-26 |
Family
ID=75094695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021024243.6U Active CN212808561U (en) | 2020-06-05 | 2020-06-05 | A electric leakage alarm device for job site fire-fighting line uses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212808561U (en) |
-
2020
- 2020-06-05 CN CN202021024243.6U patent/CN212808561U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205670638U (en) | A kind of low-voltage intelligent distribution box safety monitoring assembly | |
| CN203759822U (en) | Residual electric current type electrical fire hazard monitoring detector | |
| CN110101992A (en) | A kind of electric fire-control linked system based on photovoltaic building | |
| CN212808561U (en) | A electric leakage alarm device for job site fire-fighting line uses | |
| CN205068134U (en) | Fire control water feed pump set intelligence centralized control system | |
| CN200941545Y (en) | Fire-proof electricity leakage protector | |
| CN106292811A (en) | A kind of household electricity secure digitalization management system | |
| CN1829035A (en) | Building electric fire hidden trouble alarm power distribution method and its circuit | |
| CN104300616A (en) | Variable level type large-capacitance discharge machine | |
| CN111403968A (en) | Safety socket and socket assembly | |
| CN206806982U (en) | A kind of three-phase four-wire power phase shortage and phase sequence warning device | |
| CN202916635U (en) | Stand-by pump controller | |
| CN202025406U (en) | Residual current type electric fire monitoring detector | |
| CN214176888U (en) | Electromechanical device fault location and alarm protection device | |
| CN211719901U (en) | Safety socket and socket assembly | |
| CN200959023Y (en) | Leakage alarming monitor | |
| CN204228913U (en) | A kind of acoustic-optic alarm of circuit breaker failure tripping operation of transformer station | |
| CN204103567U (en) | A kind of stage-variable type bulky capacitor Electrical Discharge Machine | |
| CN203895955U (en) | Neutral-line-shortage and neutral-line-breakage automatic protecting device | |
| CN218923668U (en) | Wireless automatic fire extinguishing controller | |
| CN207248364U (en) | A kind of electronic type overtemperature alarm module | |
| CN217824223U (en) | Switch cabinet with power management | |
| CN204405774U (en) | A kind of fire-fighting power supply monitoring module detection system | |
| CN215578426U (en) | Novel circuit protection release | |
| CN2891437Y (en) | Distribution connection structure for electric fire hazard alarm in building |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |