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Project · Emergency repairs

Hotel repair: earthing redone on a floor distribution board

The earth connections of a floor board serving four rooms were poorly made: we redid them completely.

01

The starting point

The earth connections of the floor board serving four rooms were poorly made: the installation no longer properly protected people.

02

Our work

Supply isolated, board checked, then all earth conductors reconnected to the earth bars.

03

The result

A board with properly connected earths: the lighting, socket and heating circuits of the four rooms are protected again.

The project in detail

In a Paris hotel, the floor distribution board serving four rooms (lighting, sockets and convector heaters) had poorly made earth connections.

After isolating the supply, we removed the cover, checked the board, then redid the earth conductors and connected them properly to the earth bars. The circuits of all four rooms are protected again.

In pictures

The project in photos

Click a photo to enlarge it.

01

The intervention

3 photos

The floor board concerned — Earthing repair on a floor distribution board
The floor board concernedA hotel floor sub-distribution board, arranged in three rows: lighting, sockets and convector heaters for four rooms. The client called us because the earth connections of this board were not properly made.
Cover removed: diagnosis and repair — Earthing repair on a floor distribution board
Cover removed: diagnosis and repairAfter isolating the supply, we removed the cover to check the board. The earth conductors were redone and connected to the earth bars, at the bottom and on the right-hand side of the board.
Detail: earths connected — Earthing repair on a floor distribution board
Detail: earths connectedEach protective conductor (green-and-yellow wire) is tightened in its own terminal on the earth bar. A properly connected earth carries fault current away from a faulty appliance and makes the protective devices trip.

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