JP4248686B2 - Flame retardant insulation - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a safety and hygiene protective device for electrical work, and is a protective device for preventing electric shock accidents such as live line work in a high-voltage charging path, live line proximity work, etc. The purpose is to protect against electric shocks. A base fabric with an aramid fiber content of 35% by weight or more is used on the front or back side, flame retardant silicon rubber is glued on one side, and it is insulated from the flame retardant fluorine film in the middle. The present invention relates to a flame retardant insulation sauce manufactured from a sheet made of film.
[0002]
[Prior art]
In recent years, companies and households introducing computer systems such as hospitals, telephone exchanges, public buildings, office buildings, airports, factories and the like have increased remarkably. There are many uninterruptible works that are conducted by energizing electricity by increasing electricity supply as well as increasing the amount of power supply, and charging path activities in places where it is difficult to evacuate such as narrow campus work, high place work, pole work etc. There is a risk of electric shock disaster due to increased wire work. A human body touches a charging path is an electric shock, a short circuit that occurs when the charging path is touched or a contact with a flame that is generated by a nearby arc, and an electric burn that occurs due to contact with a flame is an electric burn. The occurrence of is increasing. Insulation garments and insulation sheets that protect the body from contact electric shocks are used in electrical construction, but they are not flame retardant and come into contact with electrical sparks such as short-circuit arcs and proximity arcs. A fire accident has occurred.
[0003]
Conventional electric insulation garments are made of rubberized fabric or vinyl chloride and are inexpensive and have excellent insulating properties. However, they are flammable and melt by contact with fireballs caused by short-circuit arcs in the event of an electric shock. There have also been reports of burn accidents caused by burning. A short circuit during hot line work on a high-voltage charging path has a large amount of energy to be released. If an electric shock occurs, it becomes a serious disaster and a fatal accident has been reported.
[0004]
Electric shock disasters include electric shocks and electric burns, and electric shocks are those that have electric spots due to energization of the human body and necrotized the inside of the body. An electric burn is a burn that occurs when a human body comes into contact with a short-circuit arc or the like caused by contacting or approaching a charging path, and also refers to a burn that causes clothing to burn up due to contact with an electric spark or a short-circuit arc.
The current insulation garment is a protective garment for electric shocks caused by contact with the charging path, and does not assume damage to the human body or clothes due to arc contact.
[0005]
In recent years, the generation of harmful gases including dioxin has been reported in the incineration disposal of vinyl chloride products, and disposal such as incineration and landfill has been reviewed nationwide, and future production and use are feared. Rapid development of insulation garments with low environmental impact at the time of wear and tear disposal is struggling.
[0006]
Although flame retardant electrical disaster prevention clothing using aramid fiber is commercially available, this product does not burn up in flame contact with short-circuit arc, it does not melt and drip, and is effective against electric burns caused by arcing. It is not suitable for safety and hygiene protection equipment used for hot wire work that requires insulation, without consideration for insulation.
[0007]
There are JIS and Ministry of Labor notifications for protective equipment for electrical insulation, etc., and insulation performance and withstand voltage are determined. There is a helmet and an integrated hood that has both flame resistance and insulation function, but it is heavy and large and difficult to install and remove, it is not workable at high temperatures in the summer and a lot of sweat is seen at the time of work, The load is large.
[0008]
According to the Occupational Safety and Health Act, when performing live-line work and close-up work, use protective gear worn on the body to prevent electric shock accidents. Electrical rubber gloves, electrical safety caps, electrical rubber sleeves, insulating clothing, electrical equipment Workers are required to use protective equipment for insulation such as rubber boots, and the specifications of the protective equipment for insulation are described in Ministry of Labor Notification No. 144 regarding the structure and insulation performance. There is no provision for working clothes that handle exposed live parts in work such as inspection and repair of electrical equipment, and there is no provision for protection of the back of the head, neck, etc., and it is defenseless against disasters.
[0009]
[Problems to be solved by the invention]
In view of the above situation, it relates to occupational safety and health protective equipment for the purpose of protecting the physical life of workers engaged in electrical work, and it is attached to an electric safety cap, that is, the exposed part between the electric safety cap and insulating clothing, It was necessary to protect the body from electric shocks such as contact of the charging path, electric sparks and flames of short-circuit arcs by covering the back of the head and neck with flame retardant insulation.
[0010]
The number of live line work and live line proximity work on the charging path has increased, and the risk of an electric shock disaster has increased, and there has also been an electric shock disaster caused by electric sparks and flame contact of short-circuit arcs. Wearing a conventional PVC insulation garment and in contact with the arc during hot-line work, the PVC insulation garment and the work garment had a case of a serious burn accident due to a garment fire. It needs to be solved.
[0011]
[Means for Solving the Problems]
In the present invention, a flame retardant fluorine film and a flame retardant fluorine film are sandwiched between a combination fabric in which flame retardant silicone rubber is glued to a base fabric having an aramid fiber content of 35% by weight or more and an aramid fiber fabric. Insulating films are provided respectively.
As a result, electrical disasters in the high-voltage charging path cause a large amount of energy to be instantaneously released, and burns caused by melting and dripping with a short-circuited arc (fireball), or burning the insulation garment and melting and adhering to the skin If there is a flame retardant insulation using a silicone rubber adhesive fabric on the surface of a fabric with an insulation film flame retardant aramid fiber content of 35% by weight or more, a short circuit arc (fireball) It can prevent burns caused by melting and dripping.
[0012]
Electric shocks include electric shocks and electric burns. Electric shocks are caused by contact with or approaching a high-voltage charging path. In addition, electric burns are burns caused by a short-circuit arc coming into contact with the human body, and include burns caused by burning clothes due to contact with electric sparks and arcs, so the material used must be flame retardant. The invention and flame retardancy using the fabrics and sticking a flame retardant silicone rubber excellent aramid fiber fabric flame retardant to the surface, while protecting the body without inflamed against flame wiped the arc, electric Shut off . The insulating film is made flame retardant while being insulated by sandwiching it with a flame retardant fluorine film like a sandwich. Therefore, when attached to an electric safety cap, the back of the head, neck, face, etc. can be protected from electric shock and electric burn.
[0013]
Since vinyl chloride products are generating hazardous gases in incineration disposal, they are designated as inflammables and cannot be incinerated, and it is expected that it will be difficult to dispose of wear. It is an environmentally friendly flame retardant insulation that uses aramid fiber, polyethylene film, etc. with low environmental impact at the time of waste disposal and can be incinerated.
[0016]
In addition, if the flame retardant insulation sauce is made longer, an electric shock can be prevented on the back, shoulders, and upper chest.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
According to the flame retardant insulation sauce configured as described above, occupational safety and health can be improved if it is used in live work or live work close work in electrical work. In addition, if a flame retardant insulation saucer is attached to an electric safety cap (helmet) and work is performed in a narrow area, safety at the rear, which is difficult to see, and protection of the back of the head and neck, etc., are possible.
[0019]
【Example】
An embodiment will be described with reference to the drawings. In FIG. 1, a flame retardant insulation sauce is used in combination, and a silicone rubber adhesive fabric (1) is used as the aramid fiber base fabric on the surface of the flame retardant insulation sauce . The intermediate layer of the flame retardant insulation sauce is laminated with a plurality of insulation films (3) sandwiched between the flame retardant fluorine film (2) and the flame retardant fluorine film (2) to make it flame retardant and insulated. Secure . On the back side is a flame retardant insulation sauce made of a sheet-like material having a multilayer structure using an aramid fiber fabric (4). The flame retardant insulation sauce has no change in performance even when the aramid fiber fabric (4) is used on the front surface and the silicon rubber adhesive fabric (1) is used on the back surface of the aramid fiber base fabric.
[0020]
FIG. 2 is a plan view of the flame retardant insulation sauce as seen from the table. As shown in FIG. 5, the surface of the flame retardant insulation sauce (8) and the surface adhesive tape male (5) are attached to the surface so that they can be fastened together. mounting, mounting a female (6) of the surface bonding tape to the back surface.
[0021]
FIG. 3 shows the flame retardant insulation sauce (8) as seen from the back side. The belt (10) is attached and sewn to the flame retardant insulation sauce (8), and a plurality of attachment loops (11) are attached to the belt (10 ). Sew. A dot button (12) for attaching a helmet is attached to the tip. The button (12) is also attached to the belt (10) .
[0022]
FIG. 4 is a cross-sectional view showing a method of mounting the flame retardant insulation saucer with an electric safety cap (helmet) (7). An electric safety cap (helmet) (7 ) is provided with a belt (not indicated by a symbol ) that goes around the head by attaching a flame retardant insulating saucer (8) to an impact prevention material (9) inside. Combine the front part of flame retardant insulation sauce (8) with the anti- slack material (9) and the center of the flame retardant insulation sauce (8 ) with the unprotected back head and neck on the belt (unsigned). Put on the cap (helmet) (7). At this time , the attachment is completed by fitting the attachment plastic dot button (12) and the button (12) of the belt (10) through the attachment loop (11) through the belt of the electric safety cap (7) .
[0026]
【The invention's effect】
According to the present invention, the insulation has a withstand voltage test, and the outer fabric has a tensile load of 10 kgf or more and an elongation of 5% or more, and the cold resistance is such as cracks, scratches, cracks, etc. even at cold temperatures in winter. No damage will occur. In addition, it is possible to avoid electric shocks such as electric shocks during work , short-circuit arcs, and near arcs, and indirect disasters associated therewith .
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a combination of materials used for a flame-retardant insulation sauce.
FIG. 2 is a plan view in which a surface adhesive tape is attached to the surface of a flame-retardant insulating saucer.
FIG. 3 is a back plan view showing positions of a belt, a loop, and a stop button for mounting the flame-retardant insulating saucer on an electric safety cap.
FIG. 4 is a cross-sectional view showing how to attach to the electric safety cap.
FIG. 5 is a front view attached to an electric safety cap and worn by a person.
FIG. 6 is a side view attached to an electric safety cap and worn by a person.
[Explanation of symbols]
1: Flame retardant silicone rubber adhesive fabric on aramid base fabric 2: Flame retardant fluorine film 3: Insulating film 4: Aramid fiber fabric 5: Surface adhesive tape male 6: Surface adhesive tape female 7: Electric safety cap (helmet)
8: Flame retardant insulation sauce 9: Electric safety cap internal impact prevention material 10: Mounting belt 11: Mounting loop 12: Dot button for mounting

Claims (3)

A flame retardant fluorine film and an insulating film sandwiched between the flame retardant fluorine film and a combination fabric obtained by bonding flame retardant silicone rubber to a base fabric having an aramid fiber content of 35% by weight or more and an aramid fiber fabric ; A flame retardant insulation sauce characterized by having each provided. The flame燃絶edge sagging, flame燃絶edge sauce according to claim 1, characterized in that used in detachably attached to the electrical safety helmet. The flame燃絶edge sagging, when mounted on electrical safety helmet, flame燃絶edge sauce according to claim 1 or 2, characterized in that longer up to at least the upper chest and shoulders.

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