CN2891437Y - Distribution connection structure for electric fire hazard alarm in building - Google Patents
Distribution connection structure for electric fire hazard alarm in building Download PDFInfo
- Publication number
- CN2891437Y CN2891437Y CN 200620200349 CN200620200349U CN2891437Y CN 2891437 Y CN2891437 Y CN 2891437Y CN 200620200349 CN200620200349 CN 200620200349 CN 200620200349 U CN200620200349 U CN 200620200349U CN 2891437 Y CN2891437 Y CN 2891437Y
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- phase
- circuit breaker
- circuit
- power distribution
- load
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- Expired - Lifetime
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- Y02E60/725—
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Abstract
The utility model discloses a power distribution connecting configuration for hidden perils of electric fire building alarm, wherein the neutral-point of the three-phase transformer is connected with the ground directly and the neutral wire and the ground-connecting protection wire are extracted from the neutral-point, three phase-wires and the neutral wire of the transformer are connected into the power distribution circuit, a phase wire and neutral wire of the power distribution circuit are load connected with the single-phase socket via a line breaker, and another phase wire and a neutral wire of the power distribution circuit are load connected with the single-phase illumination via a line breaker, three phase wires of the power distribution circuit are respectively connected with the three-phase symmetry loading and the three-phase asymmetry loading, the auxiliary contacts of the line breakers are respectively connected to the alarm signal input end of the alarm controlling circuit. The utility model has the advantages of simple configuration, low cost, easy maintenance, high work reliability and convenient concentration supervision for the breaker.
Description
Technical field
The utility model relates to a kind of distribution syndeton of building electric fire hidden trouble alarm, belongs to building electric fire alarm technique field.
Background technology
According to statistics, in China's disaster hidden-trouble sum, electric disaster hidden-trouble accounts for 30% of electric disaster hidden-trouble sum, accounts for the first place in the cause of disaster hidden-trouble.The electric disaster hidden-trouble major part is to be caused by short circuit, particularly ground arc short circuit.Because building electric fire hidden trouble is dangerous greatly, personnel are intensive, brings a lot of inconvenience for the work of putting out a fire to save life and property, particularly present building is also more and more higher, and the work of putting out a fire to save life and property is also difficult more.Therefore country stipulates in 2005 editions " high-rise design fire safety rules ", high-rise must be provided with electric leakage electric fire hidden trouble alarm circuit, original distribution method for designing must be adjusted accordingly, in power distribution circuit, should be able to monitor the fault and the abnormality of power consumption equipment and circuit thereof, find electric disaster hidden-trouble, in time the prompting personnel go to eliminate these hidden danger.
Existing building low-voltage distribution circuit generally adopts the TN-S three-phase five-wire mode, and zero line, PE line separate fully.What also some older building adopted is three-phase four-wire system, does not have ground protection PE line.Generally all adopt low voltage winding in transformers neutral-point solid ground, phase line inserts the structure of power distribution circuit through power circuit breaker, and the main load of its distribution is divided into three kinds of three-phase load, single-phase lighting load or single-phase socket loads.Though circuit breaker all is installed in every kind of load, but these circuit breakers all are only to adopt the circuit breaker with short-circuit protection or overload protection function usually, can not be connected with the existing conventional warning circuit, be difficult to realization centralized monitor and electric disaster hidden-trouble and report to the police automatically; The distribution system ubiquity complex structure, investment is big, operating cost is high, the shortcoming of maintenance difficult and existing building electric fire hidden trouble is reported to the police automatically.So the distribution technique of existing building electric fire hidden trouble alarm in use, and its result of use still is not ideal.
Summary of the invention
The purpose of this utility model is: provide a kind of simple in structure, cheap, safeguard easily, functional reliability is higher and be convenient to the distribution syndeton of the building electric fire hidden trouble alarm of centralized monitor, find electric disaster hidden-trouble, prevention in time to overcome the deficiencies in the prior art with timely, thereby avoid causing huge casualties and economic loss.
The utility model is achieved in that it comprises the three-phase transformer 1 that is used for the building power supply, the neutral-point solid ground of three-phase transformer 1, and draw zero line N and ground protection line PE respectively from this point, three phase line L1, L2, L3 and the zero line N of transformer 1 inserts power distribution circuit through circuit breaker 6, and a phase line of power distribution circuit is connected with single-phase socket load 12 through circuit breaker 2 with zero line N; A phase line of power distribution circuit is connected with single-phase lighting load 13 through circuit breaker 3 with zero line N; Three phase line L1, L2, the L3 of power distribution circuit are connected with three phase symmetry load 14 through circuit breaker 4; Three phase line L1, L2, L3 and the zero line N of power distribution circuit are connected with three-phase asymmetric load 15 through circuit breaker 5; The lead-out wire of the auxiliary contact 7,8,9,10,11 of each circuit breaker is connected respectively on the alarm signal input of alarm control circuit 16, and ground protection line PE is directly connected to each load and is connected with the load ground protection.
In the above-mentioned building electric fire hidden trouble alarm circuit, circuit breaker 2,3,4,5,6 all adopts the circuit breaker that has short circuit, overload, electric leakage triple protection and have auxiliary contact; Circuit breaker 2,3 is that three utmost points, circuit breaker 5,6 are four utmost points for one pole, circuit breaker 4.
Owing to adopted technique scheme, compared with prior art, that the utility model not only has is simple in structure, cheap, safeguard easily, the functional reliability advantage of higher, but also makes things convenient for the centralized monitor of circuit breaker.When using the utility model, when electric disaster hidden-trouble occurring, circuit sends sound and light alarm to night shift room at once, in time find, and prevention in time, thus avoid causing great casualties and economic loss.
Description of drawings
Accompanying drawing 1 is an electrical principle schematic diagram of the present utility model.
Being labeled as in the accompanying drawing: 1-transformer, 2-circuit breaker, 3-circuit breaker, the 4-circuit breaker, 5-circuit breaker, 6-circuit breaker, the auxiliary contact of 7-circuit breaker, the auxiliary contact of 8-circuit breaker, the auxiliary contact of 9-circuit breaker, the auxiliary contact of 10-circuit breaker, the auxiliary contact of 11-circuit breaker, the load of 12-single-phase socket, the single-phase lighting load of 13-, the 14-three phase symmetry load, the asymmetric load of 15-three-phase, 16-alarm control circuit.
Embodiment
Embodiment of the present utility model: as shown in Figure 1, neutral-point solid ground with three-phase transformer 1, and draw zero line N and ground protection line PE respectively from this point, three phase line L1, L2, L3 and the zero line N of transformer 1 are inserted power distribution circuit through circuit breaker 6, and a phase line of power distribution circuit is connected with single-phase socket load 12 through circuit breaker 2 with zero line N; Another root phase line of power distribution circuit is connected with single-phase lighting load 13 through circuit breaker 3 with zero line N; Three phase line L1, L2, the L3 of power distribution circuit are connected with three phase symmetry load 14 through circuit breaker 4; Three phase line L1, L2, L3 and the zero line N of power distribution circuit are connected with three-phase asymmetric load 15 through circuit breaker 5; The lead-out wire of the auxiliary contact 7,8,9,10,11 of each circuit breaker is connected on the alarm signal input of alarm control circuit 16; alarm control circuit 16 can directly adopt warning circuit finished product of the prior art to install, and ground protection line PE is directly connected to each load and is connected with earth terminal in the load.Above-mentioned circuit breaker 2,3,4,5,6 all adopts the circuit breaker that has short circuit, overload, electric leakage triple protection and have auxiliary contact; Circuit breaker 2,3 is that three utmost points, circuit breaker 5,6 are four utmost points for one pole, circuit breaker 4.All circuit breakers all can adopt the finished product of selling on the market.
Leakage current with circuit breaker 6 in this routine embodiment is set at less than 500mA, and circuit breaker disconnects when surpassing 500mA; The leakage current of circuit breaker 2,3 is set at less than 100mA, and circuit breaker disconnects when surpassing 100mA; The leakage current of circuit breaker 4,5 is set at less than 200mA, and circuit breaker disconnects when surpassing 200mA; When circuit breaker disconnects, auxiliary contact on its switch also disconnect, the indicator light that is connected on the alarm control circuit of night shift room goes out, alarm control circuit sends the sound and light alarm signal simultaneously, at this moment the operator on duty can find out the particular location of warning on control circuit, and send the staff that circuit is checked, and get rid of electric disaster hidden-trouble, accomplish to prevent trouble before it happens.
Claims (2)
1. the distribution syndeton of a building electric fire hidden trouble alarm, it comprises the three-phase transformer (1) that is used for the building power supply, it is characterized in that: the neutral-point solid ground of three-phase transformer (1), and draw zero line (N) and ground protection line (PE) respectively from this point, three phase lines (L1) of transformer (1), (L2), (L3) and zero line (N) insert power distribution circuit through circuit breaker (6), and a phase line of power distribution circuit is connected with single-phase socket load (12) through circuit breaker (2) with zero line (N); A phase line of power distribution circuit is connected with single-phase lighting load (13) through circuit breaker (3) with zero line (N); Three phase lines (L1) of power distribution circuit, (L2), (L3) are connected with three phase symmetry load (14) through circuit breaker (4); Three phase lines (L1) of power distribution circuit, (L2), (L3) and zero line (N) are connected with three-phase asymmetric load (15) through circuit breaker (5); The auxiliary contact of each circuit breaker (7), (8), (9), (10), (11) are connected respectively on the alarm signal input of alarm control circuit (16), and ground protection line (PE) is directly connected to each load and is connected with earth terminal in the load.
2. the distribution syndeton of building electric fire hidden trouble alarm according to claim 1, it is characterized in that: the circuit breaker that has short circuit, overload, electric leakage triple protection and have auxiliary contact is all adopted in circuit breaker (2), (3), (4), (5), (6); Circuit breaker (2) and (3) are that one pole, circuit breaker (4) are that three utmost points, circuit breaker (5), (6) are four utmost points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620200349 CN2891437Y (en) | 2006-04-10 | 2006-04-10 | Distribution connection structure for electric fire hazard alarm in building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620200349 CN2891437Y (en) | 2006-04-10 | 2006-04-10 | Distribution connection structure for electric fire hazard alarm in building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2891437Y true CN2891437Y (en) | 2007-04-18 |
Family
ID=38022098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620200349 Expired - Lifetime CN2891437Y (en) | 2006-04-10 | 2006-04-10 | Distribution connection structure for electric fire hazard alarm in building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2891437Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1829035B (en) * | 2006-04-10 | 2010-07-28 | 贵阳铝镁设计研究院 | Building electric fire hidden trouble alarm power distribution method and its circuit |
| CN112582970A (en) * | 2020-12-14 | 2021-03-30 | 湖南顶立科技有限公司 | Graphite resistance furnace load short circuit processing method and system |
-
2006
- 2006-04-10 CN CN 200620200349 patent/CN2891437Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1829035B (en) * | 2006-04-10 | 2010-07-28 | 贵阳铝镁设计研究院 | Building electric fire hidden trouble alarm power distribution method and its circuit |
| CN112582970A (en) * | 2020-12-14 | 2021-03-30 | 湖南顶立科技有限公司 | Graphite resistance furnace load short circuit processing method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20070418 Effective date of abandoning: 20100728 |