RU163923U1 - METAL WELDED CABLE BOX - Google Patents

Abstract

The proposed utility model relates to electrical engineering and is an integral part of cable routes intended for open laying of current conductors (power and control cables and wires) at service sites, trusses, columns and walls inside buildings and structures, as well as outdoors in special technological racks and other supporting structures at nuclear power plants and at any other energy and general industrial facilities.

The term "welded cable box metal block" (hereinafter referred to as the box) refers to the entire set of its elements for various purposes (straight and angular boxes) of different sizes.

The technical result achieved in the proposed duct cable metal block, is:

- to increase the reliability of the design of the box during operation;

- in reducing the complexity of mounting the box;

- in increasing the life of the box.

The proposed welded cable metal block box consists of:

- housing;

- casing;

- longitudinal elements;

- U-shaped racks on which consoles (brackets) are attached;

- removable side wall;

- the attachment point of the removable side wall to the housing;

- Docking clip, with the help of which the boxes are docked with the formation of a cable route.

Improving the reliability of the box during operation due to the high mechanical strength and seismic resistance of the design of the box.

High mechanical strength and seismic resistance of the box is achieved by the fact that all these assembly units - the frame of the body, longitudinal elements, the connecting clip made from the corner 63 * 63 * 6, the casing and the removable side wall are made of cold-rolled steel; racks and consoles made of sheet steel with a channel-shaped profile are rigidly fixed in a single structure with the help of welded and fastening joints. The removable side wall is attached to the housing with a reliable mounting unit using a bracket, handle and mounting connection.

Reducing the complexity of mounting the box is achieved by the fact that the channel-shaped racks are maximally assigned to the fixed side wall of the housing, which led to an increase in the capacity of the box and, accordingly, an increase in the number of cables laid per unit cross-sectional area of the box.

Also, several rows of consoles (brackets) are installed on the rack in order to increase the capacity of the box and separate the cables for various purposes. The increase in the service life of the box is determined by the fact that flanges are made on the box casing, which are welded with a longitudinal seam with the formation of a stiffener along the entire length of the box.

The surfaces of all parts of the box additionally have anti-corrosion coatings of different types: paintwork with a thickness of at least 50 microns, metal - hot dip galvanizing with a thickness of at least 80 microns, a combined coating in the form of hot dip galvanizing followed by a paint and varnish coating with a thickness of at least 80 microns and 50 microns.

The use of a combined (paint and varnish and metal - hot-dip galvanizing) coating gives the total effect of using each coating individually.

In the casing of the box, shutters are made to ventilate the box and to remove moisture from the condensation of vapors in the air.

The length of the straight cable box is usually 2 meters.

Cable block boxes are straight and angular. The first modification is used for laying cable routes in vertical shafts and a horizontal plane. Corner options are used to change the cable trunk at different angles. These products can be used in vertical and horizontal planes.

The box has a self-supporting ability.

Docking boxes between themselves and fixing them to the supporting structures are carried out using galvanized bolted joints.

Fasteners are used in Russia according to the interstate standard.

The design of the box is resistant to seismic effects, an earthquake of 9 points, which corresponds to seismic resistance category 1.

The design of the box is stable, withstands the emerging mechanical stresses from environmental factors.

The design withstands all modes of normal operation, as well as test and emergency modes at nuclear facilities, which is confirmed by the acts of tests.

After laying the cables, fireproof belts and seals should be installed inside the ducts in the places of passage through the walls and floors in accordance with the current regulatory and technical documentation.

Description

The proposed utility model relates to electrical engineering and is an integral part of cable routes intended for open laying of current conductors (power and control cables and wires) at service sites, trusses, columns and walls inside buildings and structures, as well as outdoors in special technological racks and other supporting structures at nuclear power plants and at any other energy and general industrial facilities.

The term "welded cable box metal block" (hereinafter referred to as the box) refers to the entire set of its elements for various purposes (straight and angular boxes) of different sizes.

Known cable duct for laying power and control cables, comprising a metal housing with a rectangular cross-sectional profile, a removable side wall and cable racks installed along the length of the housing with shelves. (Patent SU No. 1617510, IPC H02G 3/04, publ. 30.12.1990).

The features of the cable duct common with the proposed duct construction are as follows:

- a metal case with a rectangular cross-sectional profile;

- a removable side wall and cable racks with shelves installed along the length of the housing.

To attach a removable side wall, hooks are fixed on the upper part of the cable duct housing, and brackets are fixed on the bottom. Loops are fixed in the upper part of the removable side wall, and vertically located pins in the lower part.

To attach the removable side wall to the body, it is lifted by the brackets in a vertical plane and the loops are hung on the hooks of the body, while simultaneously installing the wall pins in the brackets and lower the wall to the lower position.

Removing the wall from the body is carried out by lifting with brackets manually or fire hooks or other auxiliary means.

The disadvantage of the cable duct is the lack of reliability during operation due to the fact that the removable wall is not rigidly fixed.

Known cable duct (Patent SU No. 523476, IPC H02G 3/04, publ. 03.07.76), taken as a prototype and containing:

- housing with a rectangular cross-sectional profile;

- a partition placed parallel to the side walls of the housing and formed by struts equipped with brackets that face the removable wall and are installed perpendicular to it.

The partition divides the box into two compartments.

The first compartment, formed by a partition and a removable side wall, serves for laying cables.

The second compartment, formed by the side wall, the opposite removable wall and the partition, serves to output cables with the required bending radius anywhere along the length of the box.

The features of this box design, common with the utility model, are as follows:

- the presence of a housing with a rectangular cross-sectional profile;

- partitions placed parallel to the side walls of the housing and formed by struts equipped with brackets that face the removable wall and are installed perpendicular to it.

The disadvantage of the prototype is to reduce the capacity of the box and, accordingly, reduce the number of cables to be laid per unit cross-sectional area of the box in connection with the formation of the second compartment.

The technical result achieved in the proposed duct cable metal block, is:

- to increase the reliability of the design of the box during operation;

- in reducing the complexity of mounting the box;

- in increasing the life of the box.

The proposed welded cable metal block box consists of:

- housing;

- casing;

- longitudinal elements;

- U-shaped racks on which consoles (brackets) are attached;

- removable side wall;

- the attachment point of the removable side wall to the housing;

- Docking clip, with the help of which the boxes are docked with the formation of a cable route.

Improving the reliability of the box during operation due to the high mechanical strength and seismic resistance of the design of the box.

High mechanical strength and seismic resistance of the box is achieved by the fact that all assembly units — the frame of the body, longitudinal elements, the connecting clip made from the corner 63 * 63 * 6, the casing and the removable side wall — are made from cold-rolled sheet steel; racks and consoles (brackets) made of sheet steel with a channel-shaped profile are rigidly fixed in a single structure with the help of welded and fastening joints. Removable

the side wall is attached to the housing with a reliable mounting unit using a bracket, handle and mounting connection.

The reduction in the complexity of the installation of the box is achieved by the fact that the racks are channel-shaped with consoles (brackets) as much as possible assigned to the fixed side wall of the housing, which led to an increase in the capacity of the box and, accordingly, an increase in the number of cables laid per unit cross-sectional area of the box.

Also, several rows of consoles (brackets) are installed on the rack in order to increase the capacity of the box and separate the cables for various purposes.

The increase in the service life of the box is determined by the fact that flanges are made on the box casing, which are welded with a longitudinal seam with the formation of a stiffener along the entire length of the box.

Additionally, the surfaces of all parts of the box have a different types of anticorrosion coating: paint coating with a thickness of at least 50 microns, or metal - hot dip galvanizing with a thickness of at least 80 microns, or a combined coating in the form of hot dip galvanizing with subsequent paint coating with a thickness of at least 80 microns and 50 microns.

The use of a combined (paint and varnish and metal - hot-dip galvanizing) coating gives the total effect of using each coating individually.

In the casing of the box, shutters are made to ventilate the box and to remove moisture from the condensation of vapors in the air.

The length of the straight cable box is usually 2 meters.

Welded cable metal block boxes are straight and angular.

The first modification is used for laying cable routes in vertical shafts and a horizontal plane.

Corner options are used to change the cable trunk at different angles. These products can be used in vertical and horizontal planes.

The box has a self-supporting ability.

Docking boxes between themselves and fixing them to the supporting structures are carried out using galvanized bolted joints.

Fasteners are used in Russia according to the interstate standard.

The design of the box is resistant to seismic effects, an earthquake of 9 points, which corresponds to seismic resistance category 1.

The design of the utility model is stable, withstands emerging mechanical stresses from environmental factors.

The design of the box withstands all modes of normal

operation, as well as test and emergency conditions at nuclear facilities, which is confirmed by the acts of tests.

After laying the cables, fireproof belts and seals should be installed inside the ducts in the places of passage through the walls and floors in accordance with the current regulatory and technical documentation.

The proposed box construction is shown in FIG. 1. 2 (box body), FIG. 3 (box casing); FIG. 4 (cable route from the boxes).

The welded cable metal block box (Fig. 1, 2, 3, 4) consists of: a housing 1 (Fig. 1), a casing 2 (Fig. 2, 3), longitudinal elements 3, channel posts 4, consoles (brackets) 5 , removable side wall 6 with the mounting unit of the wall 7 to the housing 1, the clip of the docking 8.

The housing 1 of the box (Fig. 1) is the main part of the product and is made of longitudinally laid corners 9.

By means of welding, channel-shaped racks 4 are attached to the corners 9 by welding at a certain distance from each other, to which the consoles (brackets) 5 are attached using a locking system. Consoles (brackets) 5 are used for laying on their horizontal bearing surface of cables for various purposes.

After manufacturing the frame of the box at its ends by means of welding, the corners 13 are fixed with the formation of the connecting clip 8 - flanges of the L-shaped type. Along the perimeter of the docking clip 8, round holes 10 are made for connecting the box blocks with fasteners - a bolt 10, a washer 11 and a nut 12.

To the corner 9 and the clip of the docking 8 from the side of the fixed wall of the box by welding at the ends of the box is attached a stiffness angle 14.

To create additional rigidity, a plate 15 of sheet metal was introduced into the box structure, by means of which a stiffness angle 14 is attached to the docking clip 8.

After manufacturing the housing 1 of the box begin to manufacture the casing 2 (Fig. 2).

The casing 2 (Fig. 2) is a sheet sheathing of the box, which enhances the strength and reliability of the structure and consists of two symmetric parts (upper 16 and lower 17) with flanges 18, 19 at the ends of the product.

Two symmetrical parts of the casing 2 (upper 16 and lower 17) with flanges 18, 19 at the ends of the product are welded with the formation of stiffeners 20 along the entire length of the box.

To attach the casing 2 to the housing 1 of the box and to increase the rigidity of the structure laid additional longitudinal elements 3 from the corner 63 * 63 * 6.

Cable sections of the required length and configuration are assembled from the sections of the boxes (Fig. 4).

Box welded cable metal block straight designed for laying a multi-tiered straight cable section

tracks.

An angled box with an upward rotation of 45 ° 21 is intended for cable laying when forming a transition of the cable route from a horizontal route to a vertical one with a rotation upward by 45 °.

An angled box with a 45 ° downward rotation is intended for laying a cable when forming a transition of a cable route from a horizontal route to a vertical one with a rotation downward by 45 °.

Horizontal angled box with an internal rotation angle of 45 ° 23 is designed to form a horizontal rotation of the cable route into the route by 45 °.

Horizontal angled box with an external rotation angle of 45 ° 24 is designed to form a horizontal rotation of the cable route outward by 45 °.

Claims (4)

1. Welded cable metal block box, which is made of a body, a casing, longitudinal elements, channel-shaped racks on which consoles (brackets) are attached, a removable side wall, a mounting unit for a removable side wall to the body, a docking clip, with which boxes are docked with the formation of a cable route, characterized in that all the assembly units - the case, longitudinal elements, the connecting clip made from the corner 63 * 63 * 6, the casing and the removable side wall - made of cold rolled steel sheet ; racks and consoles (brackets) - made of sheet steel with a channel-shaped profile, the attachment unit for the removable side wall to the body - made of brackets, handles and fasteners, are rigidly fixed into a single structure using welded and fasteners; U-shaped racks with consoles (brackets) are maximally assigned to the fixed side wall of the housing to increase the capacity of the box and, accordingly, increase the number of cables laid per unit cross-sectional area of the box; flanges are made on the box casing, which are welded with a longitudinal seam with the formation of a stiffener along the entire length of the box. 2. Box according to claim 1, characterized in that all surfaces of the parts of the box additionally have corrosion protection in the form of a zinc coating with a thickness of at least 80 μm, made by hot-dip galvanizing. 3. Box under item 1, characterized in that all surfaces of the parts of the box additionally have corrosion protection in the form of a paint coating with a thickness of at least 50 microns. 4. The box according to claim 1, characterized in that all surfaces of the details of the box additionally have anti-corrosion protection - a combined coating in the form of metal zinc and paint, with a thickness of at least 80 μm and 50 μm, respectively.

Images