JP6231346B2 - Insulation armor - Google Patents

Description

  The present invention relates to an insulation armor.

  Conventionally, when performing work such as rebuilding a building or painting an outer wall, an operator approaches a low-voltage lead wire or a low-voltage lead wire that is pulled into the building from a power transmission line built on a utility pole. Then there was a situation where I had to work. Therefore, a low-voltage lead-in wire and a retaining insulator are covered with a synthetic resin wire protective tube and an insulating protective cover to avoid the danger of an electric shock of an operator and ensure safety (see Patent Document 1).

JP 2012-75237 A

However, the conventional insulation protective cover described in Patent Document 1 is formed in a cylindrical shape, and is formed to have a size that can accommodate a retaining insulator therein and cover it in the minimum necessary range. Therefore, it has been impossible to cope with changes in the types of the retaining insulators having different shapes and sizes, and it has been necessary to prepare various types of insulation protective covers.
Also, in order to cover the periphery of electrical equipment and ensure insulation protection, it is necessary to have a thickness of at least 2 mm, such as an insulation protection cover that accommodates the retaining insulator and a wire protection tube that is attached to the low-voltage lead-in wire. The weight increased and workability was poor. Insulating protective covers and electric wire protective pipes made of a synthetic resin having a thickness of 2 mm or more are strong and inflexible, and are not easy to use. Moreover, the raw material cost of the synthetic resin is high, and there is a disadvantage that the cost increases.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an insulating protective device having sufficient insulation, high safety, light weight and easy handling.

Insulating armor according to the present invention, the insulating armor to reduce the risk of electric shock attached to the electrical equipment Te at, have a skin on the front and back layers, the insulating sheet having the intermediate layer is made of flexible foam The flexible foam is a closed-cell foam, the thickness dimension is set to 2.0 mm to 3.0 mm, and the foaming ratio is 1 .5 times to 30 times .

In addition, in an insulating protective device for attaching to electrical equipment to reduce the risk of electric shock, it has a cylindrical portion that can be elastically expanded by being separated by a separation portion provided at one place in the circumferential direction. It is configured with a insulating foam, and detachably fitted shape to the electrical equipment, the insulating foam, thickness is set to 2.0Mm～3.0Mm, and expansion ratio 1.3 A short small piece that is set to be double to 20 times and further protrudes along the inner peripheral surface of the other edge from one end edge of the separation part and covers the separation part from the inside of the cylinder Ru Monodea with.

According to the insulation protective device of the present invention, it is flexible (flexible) while securing a sufficient thickness dimension, and can be wrapped around and covered with electrical equipment such as a retaining insulator, and the electrical equipment is reliably insulated and protected. Can be improved. Lightweight, high tensile strength, easy to handle and easy to use. Even if the shape and size of the retaining insulator are different, the surrounding area can be covered, and a plurality of types of electrical equipment can be supported, preventing an electric shock accident.
Moreover, it is flexible (flexible), ensuring sufficient thickness dimension, and can be attached to electric wires, such as a lead-in line and a power transmission line, and can improve insulation by reliably insulating and protecting electrical equipment. Lightweight, easy to handle, and easy to use. Even when the diameters of the electric wires are different, the periphery can be covered with an outer fitting shape, and an electric shock accident can be prevented.

It is an expanded sectional view showing one embodiment of the present invention. It is the perspective view which showed the usage example of the insulation protector of this invention. It is the expanded sectional view which showed other embodiment of this invention. It is the perspective view which showed the other usage example of the insulation protector of this invention. It is the simplified diagram which showed an example of the electrical installation.

Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments.
The insulation protector of the present invention is attached to an electrical facility such as an electric wire, a retaining insulator, a power distribution device, and the like, and is provided in order to reduce the risk of an operator's electric shock. As the electric equipment to be applied, for example, as shown in FIG. 5, the low-voltage lead-in line 41 is attached to the low-voltage lead-in line 41 drawn into the building 40 from the power transmission line 49 installed on the utility pole 50 or is constructed. It is attached as an enclosure to a detention insulator 42 for securing to the object 40 and an electrical equipment 45 (low voltage side) such as a bracket fixed to the building 40. In addition, you may attach the insulation protector of this invention to the retainer insulator 47 and the power transmission line 49 for securing the lead wire 41 to the utility pole 50. FIG.

As shown in FIG. 1, the insulated protective device of the present invention has an outer skin 1, 1 on the front and back layers, and an intermediate layer from a flexible foam 2 having a thickness dimension t ₁ of 2.0 mm to 3.0 mm. The insulating sheet body 3 is configured.
The flexible foam 2 is made of rubber such as EPDM or butyl rubber, or synthetic resin such as EVA or PE (polyethylene), and the expansion ratio is 1.5 to 30 times. The flexible foam 2 is a closed-cell (foam) body in which a large number of minute bubbles 20 are independently formed, has no water absorption, and has an insulating property that does not conduct electricity in the thickness direction.
For the outer skins 1 and 1, for example, a lightweight and strong thin cloth such as a tarpaulin sheet is used, and it is desirable that the outer skins 1 and 1 have a sufficiently high tensile strength without being expanded or contracted even when pulled in the surface direction. The outer skins 1 and 1 are adhered to the front and back surfaces of the flexible foam 2 to prevent the flexible foam 2 from being pulled (in the surface direction).

As shown in FIG. 2, the insulating sheet 3 can be covered on the electrical equipment 45.
In FIG. 2, the electrical equipment 45 includes a retaining insulator 42 for retaining the low-voltage lead wire 41 to the building 40, a bracket 43 for holding the retaining insulator 42, a part of the low-voltage lead wire 41, a residential lead-in wire, and the like. . The insulating sheet body 3 is wound around the electric equipment 45 so as to cover the entire electric equipment 45, and is fixed by an insulating adhesive tape 46. The insulating sheet 3 may be attached to the electrical equipment 45 using fasteners such as an insulating clip made of synthetic resin or a locking band. In addition, although illustration is abbreviate | omitted, when covering the retention insulator 47 by the side of the utility pole 50 of FIG. 5, the insulating sheet body 3 is similarly covered and wound so that the whole electrical equipment may be covered, and it fixes with an insulating adhesive tape.

Next, another embodiment of the insulation protector of the present invention will be described.
As shown in FIG. 3, in an insulating protective device for attaching to electrical equipment to reduce the risk of electric shock, a thickness dimension t ₂ of 2.0 mm to 3.0 mm is set (one place in the circumferential direction). It is configured to have an insulating foam 4 that is separated and elastically expandable.
The insulating foam 4 is made of rubber such as EPDM or butyl rubber, or synthetic resin such as EVA or PE (polyethylene), and the expansion ratio is 1.3 to 20 times. The insulating foam 4 is a closed-cell (foam) body in which a large number of minute bubbles 20 are independently formed, has no water absorption, and has an insulation property that does not conduct electricity in the thickness direction. As the shape of the insulative foam 4, a pair of cylindrical portions 14 separated by a separation portion provided at one place in the circumferential direction and a pair of protruding shapes extending radially outward from the separation portion of the cylindrical portion 14. Projecting pieces 15 and 15. In addition, a short small piece portion 16 that protrudes along the inner peripheral surface is formed at the separation portion of the cylindrical portion 14.

As shown in FIG. 3, the insulating foam 4 is detachably attached to the low-voltage lead wire 41 in an outer fitting manner.
The insulative foam 4 is loosely fitted (externally fitted) so as to cover the periphery of the low-voltage lead-in line 41 by sandwiching the low-voltage lead-in line 41 between the projecting pieces 15 and 15 and pushing it in while expanding the cylindrical portion 14. Installed.
Although not shown, the insulating foam 4 can be attached to the power transmission line 49 shown in FIG. 5, and when attaching to the power transmission line 49, the power transmission line 49 is similarly pushed between the protruding pieces 15 and 15. Attach to loose fit (outer fit).

The design of the present invention can be changed. For example, the insulating foam 4 can be changed to various shapes and sizes. Further, the following configuration may be used as a reference example. That is, the insulating foam 4 can be formed into a sheet shape, and the outer skins 1 and 1 shown in FIG. 1 may be omitted.

As described above, the insulating protective device according to the present invention is an insulating protective device that is attached to an electrical facility to reduce the risk of electric shock, and has outer and outer layers 1 and 1 on the front and back layers, and an intermediate layer of 2. Since it is configured with an insulating sheet body 3 made of a flexible foam 2 having a thickness dimension t ₁ of 0 mm to 3.0 mm and can be covered with electrical equipment, it is flexible (flexible while ensuring a sufficient thickness dimension). ) Can be wrapped around and covered with electrical equipment such as the retaining insulator 42, and the electrical equipment can be reliably insulated and improved in safety. Lightweight, high tensile strength, easy to handle and easy to use. Even if the shape and size of the retaining insulator 42 are different, the surroundings can be covered, and an electric shock accident can be prevented in correspondence with a plurality of types of electrical equipment.

In addition, in an insulation protector for attaching to electrical equipment to reduce the risk of electric shock, it is set to a thickness dimension t ₂ of 2.0 mm to 3.0 mm, and is configured with an insulating foam 4. Since it is detachable, it is flexible and can be easily attached to the electrical equipment while ensuring a sufficient thickness, and the electrical equipment can be reliably insulated and improved in safety. Lightweight, easy to handle, and easy to use.

Further, the insulating armor to reduce the risk of electric shock attached to the electrical equipment Te at, is set to thickness t ₂ of 2.0Mm～3.0Mm, spaced apart at one point in the circumferential direction elastic Since it is configured with a cylindrical insulating foam 4 that can be freely expanded and is detachably attached to the electrical equipment, it is flexible while maintaining a sufficient thickness, and the low-voltage lead-in wire 41 is flexible. It can be attached to an electric wire such as a power transmission line 49 and the like, and the electrical equipment can be reliably insulated and protected to improve safety. Lightweight, easy to handle, and easy to use. Even when the diameters of the electric wires are different, the periphery can be covered with an outer fitting shape, and an electric shock accident can be prevented.

DESCRIPTION OF SYMBOLS 1 Outer skin 2 Flexible foam 3 Insulating sheet body 4 Insulating foam
14 cylinders
16 small piece t ₁ thickness dimension t ₂ thickness dimension

Claims (2)

Insulating protective equipment to reduce the risk of electric shock when installed in electrical equipment.
Has a outer skin (1) (1) on the front and back layer is constituted with a insulating sheet material an intermediate layer made of flexible foam (2) (3), and freely coated on the electrical equipment,
The flexible foam (2) is a closed-cell foam having a thickness dimension (t ₁ ) of 2.0 mm to 3.0 mm and a foaming ratio of 1.5 times to 30 times. Insulation protective equipment characterized by being set to . Insulating protective equipment to reduce the risk of electric shock when installed in electrical equipment.
It is configured with a insulating foam having a cylindrical portion which is freely resiliently widens spaced separating portion provided at one position in the circumferential direction (14) (4), the shape fitted to the electrical equipment Removable ,
The insulating foam (4) has a thickness dimension (t ₂ ) set to 2.0 mm to 3.0 mm and a foaming ratio set to 1.3 times to 20 times. Insulating protective equipment comprising a short small piece (16) protruding from one end edge of the part along the inner peripheral surface of the other end edge and covering the cut-off part from the inside of the cylinder .

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