CN2242285Y

CN2242285Y - Fire-proof type bus wire channel

Info

Publication number: CN2242285Y
Application number: CN 95244095
Authority: CN
Inventors: 王常余
Original assignee: TAHUI ELECTRICAL EQUIPMENT FACTORY SHANGHAI
Current assignee: TAHUI ELECTRICAL EQUIPMENT FACTORY SHANGHAI
Priority date: 1995-05-31
Filing date: 1995-05-31
Publication date: 1996-12-11
Anticipated expiration: 2005-05-31

Abstract

The utility model relates to a fire-proof type bus bar groove, which is composed of a casing which is coated with fire-proof paint, a bus bar which is wrapped with fire-proof insulating materials, and a support bracket which is manufactured by the fire-proof insulating materials. The support bracket is provided with a plurality of grooves which are internally arranged into the bus bar, and the bus bar is fixed by the grooves. One end of the bus bar groove is provided with the connecting box of the bus bar groove, and the internal part of the bus bar groove is provided with the tapping box of the bus bar. The utility model which has good insulating performance can not only be continuously used in the normal environment, but also can be continuously used for more than one hour in the fire environment. The fire-proof type bus bar groove which can be suitable for high-rise buildings and important facilities can replace fire-proof cables to play the transmission and distribution function.

Description

Fire resistant busbar

The utility model relates to a kind of improved busway, relates in particular to fire resistant busbar.

In case when highrise building and some critical facility breaking out of fires, emergency power supply and fire-fighting power supply require to continue power supply a period of time, make emergency lighting work and fire pump starting operation, to guarantee that personnel withdraw and water for fire in the building.Require for this reason busway can be in the environment that catches fire still can operate as normal a period of time, be at least more than one hour.Existing air insulated type busway is owing to when high temperature, can cause alternate puncture because of vaporize water; Concentration bus duct can puncture because of phase insulation is impaired during high temperature because bus is close to, and especially in the junction of busway and the tap place of bus, easier generation phase insulation is impaired and puncture when catching fire, and causes power outages such as short circuit.

The purpose of this utility model is to provide a kind of can be in home to be used continuously, again can be in the environment that catches fire the fire resistant busbar of continuous firing more than one hour.

The utility model is achieved in that fire resistant busbar by the shell that scribbles fireproof paint, and the bus of looping refractory insulating material and be made up of the support that refractory insulating material is made has a plurality of grooves on the support, inserts bus in the groove and is fixed.End at busway has the busway connecting box, and there is the bus breakout box appropriate location in busway.

Fig. 1 is the structural representation of connection of the utility model fire resistant busbar and bus tap, and Fig. 2 is the outside drawing of fire resistant busbar, and Fig. 3 is a connecting box linkage structural representation, and Fig. 4 is Fig. 3 left view.

Among the figure: 1 housing, 2 buses, 3 insulating supports, 4 breakout boxs, 5 connecting boxes, 6 connecting cleats, 7 Connection Blocks, 8 screws.

Provide embodiment of the present utility model below in conjunction with accompanying drawing.

A kind of fire resistant busbar, by the shell that scribbles fireproof paint, the bus of looping refractory insulating material and be made up of the support that refractory insulating material is made has groove on the support 3, places bus 2 in the groove and is fixed.Shell 1 adopts galvanized iron sheet to make, surperficial sprayed fire proofing coating, in case catch fire, fireproof paint expands, and forms thicker topping, can reduce the heat that imports in the housing.Bus 2 is a copper rod, and the resistant to elevated temperatures insulation materials of copper rod outside looping, bus are built at housing on the groove of support 3 and are separated to fix.End at busway has busway connecting box 5, and connecting box is divided into a plurality of capsules, the face perforate of capsule rear and front end, and two buses in front and back pass capsule both ends of the surface duct and meet in the capsule, place linkage in the capsule, see Fig. 3 and Fig. 4.This device is by Connection Block 7, connecting cleat 6 and screw 8 are formed, perforate in the middle of the Connection Block 7, its cross section is circular arc and adds rectangle, and Connection Block top has two screwed holes, and the connecting cleat bottom is a circular arc, screw 8 passes Connection Block 7 screwed holes and is pressed on the connecting cleat 6 two buses clampings, cover the connecting box cover plate above again, the bus connector just is enclosed in the connecting box like this, and the other end of connecting box connects another busway.Also be equipped with bus breakout box 4 in busway, breakout box is divided into a plurality of capsules, the face perforate of capsule rear and front end, and bus 2 can pass capsule, and the cover plate of capsule is the cover plate of breakout box, has a plurality of bus holes of drawing on the cover plate.In the present embodiment, the refractory insulating material of support is a corundum, and busway connecting box and bus breakout box are corundum products, and occasion can be used more than 1 hour in 850 ℃ of high temperature continuously catching fire.

The utility model fire resistant busbar compared with prior art has obvious advantage:

1. have good insulating properties. Fire resistant busbar has adopted the outer looping of bus The phase insulation puncture that vaporize water causes can not take place, again owing to adopt in refractory insulating material With support that bus is separately fixing, even bus insulation is impaired, can not cause alternate hitting yet The accident of wearing.

2. the connection of busway median generatrix is more reliable.Fire resistant busbar has adopted the screws clamp connection bus, and this linkage is more reliable than the device of flexible member connection bus when high temperature.

3. bus tap place insulating properties are good.Fire resistant busbar adopts the bus breakout box in the busway, alternate whole isolation at bus tap place, and the busway that has overcome other class is problem of short-circuit very easily at the tap place.

The utility model fire resistant busbar both can be used in home continuously, can use continuously again to surpass one hour in the environment that catches fire, and in highrise building and critical facility, replaced fire-resisting cable to play the power transmission and distribution effect.

Claims

1. a fire resistant busbar is characterized in that this busway by the shell that scribbles fireproof paint, and the bus of looping refractory insulating material and be made up of the support that refractory insulating material is made has a plurality of grooves on the support, places bus in the groove and is fixed.

2. fire resistant busbar according to claim 1, it is characterized in that the busway connecting box being arranged at an end of busway, connecting box is divided into a plurality of capsules, the rear and front end face perforate of capsule, two buses pass the both ends of the surface duct and meet in the capsule, and box is built-in with linkage two buses are clamped.

3. fire resistant busbar according to claim 1 is characterized in that the bus breakout box is arranged in busway, breakout box is divided into a plurality of capsules, the face perforate of capsule rear and front end, and bus can pass capsule, has a plurality of bus holes of drawing on the cover plate of breakout box.

4. according to claim 2 or 3 described fire resistant busbar, it is characterized in that busway connecting box and bus breakout box make by refractory insulating material.