FR2694845A1 - Electricity distribution board for one floor of flats - uses incoming terminal block and circuit breaker to supply bus=bars and disconnectable consumer circuit breakers - Google Patents

Abstract

In the electricity distribution board, a set of bus-bars (JB) for one floor of the block of flats receives a supply from an incoming cable via a terminal board (BA) and circuit breaker (DA). Single or three-phase consumer circuit breakers (D1-D4) control individual consumer supplies on the floor. Each of the consumer circuit breakers (D1-D4) has sprung contacts which permit connection and disconnection to the set of bus-bars (JB) as may be required. ADVANTAGE - Disconnectable consumer circuit breakers reduce installation labour requirements and facilitate subsequent operation.

Description

BUILDING FLOOR ELECTRICAL DISTRIBUTION BOARD
The present invention relates to a building floor distribution board.

 Figure 1 illustrates the low voltage electrical distribution of a floor of a building, according to the technique usually used.

 Electrical energy is brought to the floor by cables not shown connected to a BA terminal block. This terminal block is connected to an incoming DA circuit breaker. From the circuit breaker, four conductors C1, C2, C3 and Cn (three phases and neutral) are connected, which are connected to a BP power terminal block. From the BP power terminal block, four wires leave as many times as there are subscribers upstairs; these subscribers receive the wires on a subscriber circuit breaker, respectively D1, D2, D3 and D4. From each of the subscriber circuit breakers there are four wires to use U.

We see that this arrangement has several drawbacks:
- the number of electrical conductors and wires to be installed is very large, resulting in a high cost price due to the supply to be provided and the significant assembly time,
- the risks of connection errors are not negligible, hence an additional cost due to the necessary verification,
- some of the components must be oversized, for example the power terminal block, on pain of not being able to accommodate an additional subscriber.

 An object of the present invention is to provide a distribution panel for a building floor making it possible to save labor during assembly, thanks to a lower number of conductors to be connected and a total absence of risk of errors of mounting.

 Another object of the invention is to provide a distribution board allowing great flexibility of use and in particular the possibility of increasing the number of subscribers without prior oversizing of certain elements of the board.

 The subject of the invention is a building floor electrical distribution panel, comprising an incoming terminal block connected to an incoming circuit breaker and a plurality of subscriber circuit breakers, characterized in that the subscriber circuit breakers are disconnectable equipment connected to a busbar placed in a molded insulating block.

The invention is explained by the following description of a preferred embodiment of the invention, with reference to the appended drawing in which:
FIG. 1 is an electrical distribution panel of a building floor according to the prior art,
- Figure 2 is a diagram showing an electrical distribution panel of a building floor according to the invention.

 Figure 1 has already been commented on and we will not return to it.

 The elements common to Figures 1 and 2 have been given the same reference numbers.

In the installation of Figure 2, a busbar
JB, placed in a molded insulating block, is connected to the DA circuit breaker. Subscriber circuit breakers D1, D2,
D3 and D4 are this time mounted each or in groups on a plate and provided with elastic contacts, allowing their connection to the bars. These circuit breakers thus become disconnectable.

 Such equipment is for example that sold by the company UNELEC under the reference 32249.

 Subscriber circuit breakers leave the conductors for uses U1, U2, U3 and U4.

 The arrangement adopted by the invention leads to a saving of manpower in the production and to greater flexibility of use, with no risk of errors during installation.

Claims (1)

CLAIM  Building floor electrical distribution panel, comprising an incoming terminal block (BA) connected to an incoming circuit breaker (DA) and a plurality of subscriber circuit breakers (D1, D2, D3, D4), characterized in that the subscriber circuit breakers (D1, D2, D3, D4) are disconnectable equipment connected to a busbar (JB) placed in a molded insulating block.