MX2007002691A

MX2007002691A - Second generation insulator with a galvanized thick wall (et-2g-apgg).

Info

Publication number: MX2007002691A
Application number: MX2007002691A
Authority: MX
Inventors: Jose Marco Salinas Garcia
Original assignee: Jose Marco Salinas Garcia
Priority date: 2007-03-06
Filing date: 2007-03-06
Publication date: 2008-09-05
Also published as: WO2008108612A1

Abstract

The present invention refers to an improved insulator useful for the ground system market, since it has an exclusive and versatile design that may effectively insulate diverse metallic conductors of metallic structures, the insulator acting as grounding and fixing element being highly difficult to be dismantled or stolen. The purpose of the present invention is to provide a type of insulator that is totally different from those currently available on the marker due to the novel design and construction thereof, which main characteristic is that it insulates ground cables or piping in a safety manner against robbery.

Description

IMPROVEMENTS IN THE INSULATION OF THE GROUNDING BARS BACKGROUND OF THE INVENTION Currently land systems for telecommunications are undergoing a change mainly based on the price of copper that has been rising and has reached record historical prices, this fact has caused a strong vandalism by this metal.

In the current connection systems to earthing, the insulated copper cable has been used for the external parts or those that are not buried, and its fixation to the structure is made with metal or plastic straps as indicated in figure 1, which are good performance, however it is always part of the driver is isolated and therefore there are no major implications.

Under the new perspective that the market demands to replace the copper cable with another metal, we are faced with the prospect that this other metal could be aluminum or iron, however for any of these aspects it is necessary to use an insulator that can offer the various forms of installation and adequate insulation, since this conductor may not be uniformly lined and thus not offer the correct insulation to be used as a grounding downpipe or telecommunication land system.

There are currently isolation devices for bare cable trajectories, however they have multiple faults or weaknesses, one of them is that they harbor water and therefore there is a concentrated galvanic cell, another of them is that they have short circuit by continuous water jet at moments of rain, as shown in Figure 2.

One of the most characteristic weaknesses is that its performance will be a function of how that arrangement is placed figure 2.

DESCRIPTION OF THE INVENTION The characteristic details of this novel insulator ET-2G-APGG, are clearly shown in the following description and in the accompanying drawings, and following the same reference signs to indicate the parts and figures shown.

Figure 3 is an isometric perspective of the insulator.

Figure 4 is a side perspective of the insulator.

Figure 5 is a top perspective of the insulator.

Figure 6 is a front perspective view of the insulator.

Figure 7 is an isometric perspective of explosion of the insulator with the coupler.

Figure 8 is an isometric armed view of the insulator with the coupler.

Figure 9 is an isometric explosion perspective of the coupler.

Figure 10 is an isometric armed view of the coupler.

Figure 11 is a posterior perspective of the insulator with the coupler.

Figure 12 is a top perspective view of the insulator with the coupler.

Figure 13 is a perspective view of the insulator with bushing.

Figure 14 is a front perspective view of bushing insulator.

Figure 15 is a side perspective view of the bushing insulator.

The patent artifact is based on a device that can efficiently isolate various elements such as metallic conductors, and that simultaneously be an artifact for fixing with a design that hinders and hinders the disarming, stolen or stolen.

Due to its design, this device at the top has a concave surface 40mm long (1), which can hold round elements up to a diameter of 5/8 in cable and tube up to ¾ inch and can be embraced by metal belts due to the entries that cross from one end to the other (2). With the same function are the perforations that have a dimension of 15 mm in width by 6 mm in height, with a length of 27.6 mm and that are located in the lower part of the insulator (3) that facilitates its fixation to the structures by means of metal belts.

On the other hand and on the top side the insulator can be fixed to the wall or flat surfaces because it has a hole with a diameter of 11 mm for the screw cone (4) and this has a box with a diameter of 16mm, to house the head of the same (5) and thus be filled with resins or epoxy-based material that obstruct the power to remove the thyme and thus prevent theft.

The Insulator has a length of 73mm, a width of 27.6mm, a maximum height of 51mm.

Likewise, the insulator ET-2G-APGG has in the concave part (10) with a hole (6) where a nut (9) is housed in which the attachment called ET-2G-CPGG (7) coupler for tube can be screwed thick-walled galvanized in diameters of Va inches and ¾ inches and whose function will be the one to fit the pipes with the aforementioned diameters and thus be able to effect the union of the two pipes to the coupler by means of electric welding thus forming an electrically continuous body, taking advantage of the insulator as a coupler.

It should be noted that the coupler has a central hole (11) through which the head screw (8) crosses to screw into the nut (9) inserted in the insulator, the coupler has a box to house the screw head.

This coupler also has a heat shrink sleeve (13), which has two openings in the central part of its body (1), this cover has the purpose of sealing the welded joints of the tubes to the coupler and must be placed centering the head of the screw in one of the openings, in the same way the body of the screw must cross through the other opening, done this must proceed to the fixation of the coupler in the insulator and once applied heat to the case so that when contracting seal the welding joints of the tubes to the ET-2G-CPGG, once the cover has been installed, the coupling box must be sealed with resin or epoxy material to seal the access to the thyme seal.

In this insulator has also been integrated as an attachment a rubber, resin or nylon bushing figure 1 1 (No.13) resistant to thermal shock and whose function is to be able to firmly embrace the insulator cables or tubes of smaller cross section to 3/8 of diameter, for the placement of this attachment the cable should have a heat shrink sleeve and the bushing should be centered on the body of the driver, to be held by the metal belt (14) provided in the insulator and passing through the upper perforations of the insulator (2).

The use of this type of insulator is suitable for the land system market, where the equipotential bonding demands low insulation voltage since everything must be connected in the buried ground system and that due to its design and configuration, this arrangement does not allows it to be removed once it has been placed unless it is destroyed, which shows the deterioration of the product, which cancels the possibility of being sold and reinstalled again.

These pieces will be subject to two main working conditions, mechanical and electrical efforts, for which the following tests were made: Electrical The insulator was installed with electrodes at its front and rear ends, simulating the connection bar to the front and the metal structure at the rear and 1000 volts were applied between them, without presenting electrical rupture.

A voltage of 5,000 volts was applied under the same arrangement and there was no electric arc.

A voltage of 16,000 volts was applied under the same arrangement and there was no electric arc.

It is mentioned that in the tests carried out in a wet environment, the following was obtained: Voltage of 200 Volt.- There was no tonnage. Voltage of 800 Volts.- There was no tonnage. Voltage of 1500 Volts.- There was no tonnage.

It should be noted that these insulators for the isolated plane fulfill their function, since the ground system must be formed under the equipotential bonding, therefore there will never be an attraction to the ground to the ground since all the metallic elements will be placed to the same Earth.

Mechanical The insulators were placed in the wall and in the structure respectively, and weight was applied to the center of the tubes, thus exerting the highest intensity torque in the insulators, thus having the following results.

A concentrated weight was applied to the center of the 50 Kg tubes and there was no mechanical damage.

A concentrated weight was applied to the center of the 100 Kg tubes and there was no mechanical damage.

A concentrated weight was applied to the center of the 150 Kg tubes and there was no mechanical damage.

Therefore, it is concluded that said elements fulfill both electrically and mechanically for their function.

On the other hand, the following rain tests were carried out: The insulator was placed under a rain chamber and an electrode was placed on the end where the connection to the ET-2G-CPGG was located and on the back another electrode, on one of the electrodes there was a linear voltage source (battery alkaline) and in the other electrode a linear resistance (focus), thus submitting the simulation of short circuit by continuous water jet, simulating rain and from this arrangement the following results were obtained: When it is placed vertically, that is, with the connection tube towards the front and the box for fixing the screw, they face upwards.- There is no continuity When it is placed vertically, that is, with the connection tube towards the front and the box for fixing the screw, they face downwards.- There is no continuity To be placed laterally with the connection tube to the right and the box for fixing the screw to the rear. - There is no continuity When placed laterally with the connecting tube to the left and the screw fixing box to the rear - There is no continuity.

The biggest test is when the insulator is placed above the tube or cable and the structure above it, in said test There is no continuity.

Therefore, it is concluded that the insulator satisfies satisfactorily all the necessary tests.

Claims

CLAIMS Having sufficiently described my invention, I consider as a novelty and therefore claim as my exclusive property, what is contained in the following clauses:

1 . It is an artifact designed to be installed in all vertical positions as well as left, right, up or under a structure and always maintains its isolated plane.

2. It has the versatility of being an insulator, fastener to the conductor and means of fixing to the wall or structure, works with an attachment for pipes up to ¾ of an inch or with a reducer bushing that can firmly embrace up to 3/8 inch cables. diameter.

3. With the connection coupler an excellent electrical connection can be made for pipes up to ¾ inch in diameter being welded with electric arc and protected from corrosive atmospheres by means of the thermally shrinkable sleeve.

4. It is an easy-to-install device and once sealed the box that houses the screw type can not be dismantled unless there is mechanical damage evidencing its violation.

5. Due to its geometric design and layout, the path of the cable or tube hinders direct access to the front fixing box that was previously sealed, thus further complicating its disassembly.

6. This device will help the industry in efficiently insulating, securing, connecting and fixing cables and pipes intended for grounding, ensuring protection against metal theft and also ensuring the permanence of the isolated plane even in rainy moments. RESU IN THE INVENTION This invention relates to an improved insulator, which is suitable for the land system market, because by its exclusive design, it is versatile since it can efficiently isolate from metal structures various metallic conductors intended for grounding, and simultaneously being a fixing element, with a high degree of difficulty for its disassembly or theft. The object of this invention is to provide a type of isolator totally different from the one existing on the market, thanks to a novel design and construction, whose main characteristic is the insulation of cables or grounding pipes in a secure way against theft.