CA2682466A1 - Anti-electric-shock garment - Google Patents

Anti-electric-shock garment Download PDF

Info

Publication number
CA2682466A1
CA2682466A1 CA002682466A CA2682466A CA2682466A1 CA 2682466 A1 CA2682466 A1 CA 2682466A1 CA 002682466 A CA002682466 A CA 002682466A CA 2682466 A CA2682466 A CA 2682466A CA 2682466 A1 CA2682466 A1 CA 2682466A1
Authority
CA
Canada
Prior art keywords
garment
hood
layer
way
conductive layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002682466A
Other languages
French (fr)
Inventor
Rinaldo Carraro
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carraro SRL
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2682466A1 publication Critical patent/CA2682466A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/008Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting against electric shocks or static electricity
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/02Overalls, e.g. bodysuits or bib overalls

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Ropes Or Cables (AREA)
  • Cable Accessories (AREA)

Abstract

The present invention relates to integral protective overalls (5) for operations on live high-voltage wires, comprising a first electrically conductive layer whose surface area is substantially equal to the surface area of the overalls (5) and that is obtained from a polymer fibre covered with silver. The overalls of the present invention can also include a second layer connected to the first layer in a stable manner.

Description

Title: `ANTI-ELECTRIC-SHOCK GARMENT' The present invention relates to an anti-electric-shock garment according to the preamble of claim 1.

Such a garment is known, for example, as a protective garment for technicians who carry out maintenance operations on live high-voltage wires.

When the high-voltage wires are damaged, it is necessary to repair them in order to prevent them from breaking and causing considerable damage, both to the structures and in terms of a break in the supply of the service.

Clearly, the activity of the technicians is aimed at minimising the risks of discharge (or short circuit) between two different phases of the high voltage, which may reach potential differences on the order of 800 kV AC or 600 kV DC.

Clearly it is desirable to have garments capable of providing protection even if a short circuit is created in spite of the precautions taken.

The garments known hitherto in the prior art are made of steel wire braided with cotton thread; however, they have a number of disadvantages: their electrical resistance, measured between any two points, is relatively high; they must be `activated' before each use by a strong electrical discharge in order to restore their original electrical conductivity; finally, because of its rigidity, the steel wire gives rise to rigid and uncomfortable garments that hamper the movements of the operators, with a consequent further decrease in the operative safety margins.

For this reason, a European Standard, IEC 60895: 2002, was approved recently that defines some parameters that must be measured to characterise garments that are suitable for these purposes, among them:
= resistance to abrasion and to wear;
= flame-retardant properties;
= low electrical resistance;

= capacity to conduct capacitive currents;
= protection and shielding capacity;
= resistance to cleaning cycles;
= protection against sparks.

Besides these parameters, the Standard defines other parameters specific to garments that protect only some parts of the body: for gloves, boots, socks, and footwear, the measuring method of the maximum resistance measure is defined; for garments that shield the head and the face, the efficiency of protection of the face is also defined.

The necessity for safety garments that are ever more effective and simple to use in this field is continually underlined by the too frequent accidents recorded almost daily all over the world.

The present invention is therefore aimed at satisfying specifically the needs of operators who carry out maintenance work on high-voltage electrical lines.

In view of the prior art described, the object of the present invention is to obtain a protective garment that allows technicians to work with greater safety during operations on live high-voltage wires, with the efficiency of the garment being measured according to the parameters defined by the Standard indicated above.

According to the present invention, this object is achieved by means of a garment in accordance with claim 1.

The features and the advantages of the present invention will become evident from the following detailed description of a practical form of embodiment given as a non-limiting example with reference to the attached drawings in which:
-- figure 1 shows a view of a preferred enlbodiment of a garment according to the present invention;
-- figure 2 shows a schematic view of one of the components o According to the invention, the garment 1 comprises at least one first electrically conductive layer whose extent substantially coincides with the extent of the garment 1 itself. This first layer may include a conductive yarn 2; advantageously, it is composed exclusively of this conductive yarn 2.

This means that the garment 1 is composed of a substantially complete electrically conductive layer on which can be superimposed other different layers, even partial layers, however without there being substantial portions of the garment 1 where this first electrically conductive layer is absent.

If the first layer is a textile product, for instance, the spaces between two adjacent threads need not be considered as areas of substantial discontinuity for the purposes of the present invention.

The conductive yarn 2 visible in figure 2 may contain silver; for example it may have a core 3 covered by a layer 4 of silver, for example by means of spraying.

Advantageously the core 3 is a polymer, for example composed of polyamide filaments. In a preferred embodiment, about 80% of the mass of the yarn 2 is silver.

Using the silver as a conductor, advantageously a garment 1 is obtained that is also endowed with antibacterial and bacteriostatic properties.

The conductive yarn 2 can also be one of those described in the international patent application with the title 'CONDUCTIVE TEXTILE YARN', filed on 22 March 2007 in the name of the holder of the present application, for example produced by braiding a polyamide filament covered with silver with an aramide thread, or twisting together polyamide fibres covered with silver and aramide fibres.
Preferably the garment 1 is overalls 5 capable of covering the legs, th the operator. In a preferred embodiment, the garment 1 also comprises a hood 6 and/or a visor 7 and/or one or more loop fastenings 8, to cover also the nape of the neck and part of the face of the operator. Advantageously, all these elements are integrated together.

Furthermore, the garment 1 can cover also the feet and/or the hands, for example by means of boots 9 and/or gloves 10 integrated with the overalls 5 or that can be connected thereto.

In this way it is possible to obtain a continuous covering that produces an almost perfect Faraday cage, allowing the garment 1 to satisfy the requirements relating to electrical properties, established by the Standard cited above.

The conductive textile product is advantageously a fabric, preferably a knit, for example made with a loom 30 inches in diameter, of fineness 28, with `interlock' weave, and with a weight of 200 g/sqm (:L 5%) after removal from the machine.

Clearly, these values refer to the best embodiment, but suitable products can also be obtained with circular or straight knitting machines or with traditional looms for weaving (warp and weft). Similarly, the diameter, the fineness, and the weight after removal from the machine can vary.

According to an advantageous embodiment, the garment 1 comprises, connected in a stable manner to the first layer, at least one second layer that provides the garment 1 with the properties of mechanical and/or chemical and/or flame resistance, as prescribed by the Standard cited initially. Preferably a single layer provides all these properties.

Advantageously, both the layers are produced in the form of a knit; they can be connected to one another in a stable manner.

The second layer can be composed of a second textile product, for example a fibre endowed with anti-flame or flame-retardant properties, such as for example a fibre selected from the group comprising aramide fibres, meta-aramide fibres, treated natura fibres, flame-retardant viscose, flame-retardant cotton, Lenzing FR .

The two layers can be coupled together in a stable manner by means of quilting or, more advantageously, by means of coupling (chemical or mechanical) over the entire extent of their contact surfaces.

The coupling can be achieved both chemically, that is by placing a resin between the two yarns, for example a flameproof and preferably polyurethane resin, that acts as an adhesive without compromising the elastic properties of the knits, and mechanically, that is by weaving at least one conductive thread for the first layer and at least one thread for the second layer at the same time, but separated, on the same weaving machine.

In order to contribute to keeping the electrical resistance of the garment 1 low, at least some of the internal stitches between two fabric parts (for example undersleeve, oversleeve), advantageously all the stitches, are double and felled and/or overlocked.

The garment 1 can include, on the breast, a metal frame covered by a flap 11.
The flap 11 can be closed on the breast of the garment 1 by means of a number of press studs 12, for example alternating with strips of hook-and-loop fasteners 13, arranged on the free edge of the flap 11 itself.

Corresponding to the zones subjected to higher mechanical forces, the garment 1 comprises reinforcing padding, advantageously made of nonwoven material. For example, such reinforcements are present in the vicinity of the closure studs 12 or in the vicinity of the hook-and-loop fasteners 13.

The hood 6 of garment 1 can include one or more loop fastenings 8 to protect the neck and the face respectively; to protect the eyes, it has proved to be sufficient to produce a substantially rigid visor 7, for example reinforced with nonwoven material. To ensure a greater shielding of the eyes and the nose, visor 7 is sewn to hood 6 by means of a slanting stitch, preferably slanting in the upwards direction, in such a way th, and pushed to rotate downwards.

In this manner the use of a shield for the eyes becomes superfluous. The garment 1 according to the present invention thus does not need to include a transparent shield to protect the eyes, which allows an even greater comfort in use.

As it can be seen, with the present invention an extremely conductive protective garment 1 has been produced, a garment that is greatly more elastic than the overalls currently available commercially, thus obtaining a garment 1 capable of increasing the safety of the operators both by means of the protection against the external agents in the proper sense (electricity, aggressive chemical and/or mechanical agents, flames), and because it is much more comfortable than the garments known hitherto.

This garment 1 is the only one up to now capable of satisfying the Standard IEC 60895:2002.
In particular, the garment 1 according to the present invention, after being subjected to various tests laid down by this Standard, has shown the following results:
-- a maximum resistance of less than 10 ohm, more precisely less than 3 ohm, even more precisely less than 1 ohm, for the electrical resistance test;
-- a measured resistance of less than 5 ohm, more precisely less than 2 ohm, even more precisely less than 0.5 ohm, for the test of electrical resistance on samples of fabric;
-- a shielding efficiency greater than 40 dB, more precisely greater than 60 dB, even more precisely greater than 70 dB, better if greater than 75 dB, for example greater than 79 dB on new samples and greater than 78.8 dB on washed samples.

Obviously one skilled in the art, for the purpose of satisfying contingent and specific needs, will be able to introduce numerous modifications and variants to the configurations described above, but all contained within the scope of protection of the invention as defined by the following claims.

Claims (13)

1. Protective garment (1) for operations on live high-voltage wires, comprising a first electrically conductive layer, characterised in that the surface area of said first layer is substantially equal to the surface area of said garment (1).
2. Garment (1) according to the preceding claim, wherein said first conductive layer is obtained from a conductive yarn (4) covered in silver.
3. Garment (1) according to any one of the preceding claims, comprising at least one second yarn having flame-retardant properties, obtained from a polyaramide fibre.
4. Garment (1) according to the preceding claim, wherein said first and second layers are coupled together in a stable manner over the entire extent of the surfaces of mutual contact of said first and second layer.
5. Garment (1) according to any one of the preceding claims, wherein the shielding efficiency, measured according to Standard IEC 60895:2002, is greater than 20 dB, preferably greater than 70 dB.
6. Garment (1) according to any one of the preceding claims, comprising trousers, a covering for the abdomen, and sleeves, produced without a break in continuity between them.
7. Garment (1) according to any one of the preceding claims, comprising boots (9) and/or gloves (10), each capable of being joined to said garment (1) by means of at least two press studs (11) having a diameter of not less than 10 mm.
8. Garment (1) according to the preceding claim, refolded in correspondence with these press studs (11), in such a way that said conductive layer is present with continuity also to the inside of said garment (1), in such a way as to form an electrical contact both with the external portion and with the internal portion of said press studs.
9. Garment (1) according to any one of the preceding claims t~
overlocked stitches.
10. Garment (1) according to any one of the preceding claims that comprises a hood (6) capable of being arranged around the head of the user, said hood (6) being such as to leave only the face uncovered.
11. Garment (1) according to the preceding claim wherein said hood (6) is equipped with one or more loop fastenings (8) capable of being arranged around the face in such a way as to leave uncovered only the eyes of the user.
12. Garment (1) according to any one of claims 10 or 11 wherein said hood (6) comprises a rigid visor (7).
13. Garment (1) according to the preceding claim wherein said rigid visor (7) is sewn to said hood (6) by means of a stitch slanting in the upwards direction, in such a way as to impart to said visor (7) a torque that tends to rotate it towards the face of the user.
CA002682466A 2007-03-22 2007-03-22 Anti-electric-shock garment Abandoned CA2682466A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2007/000210 WO2008114294A1 (en) 2007-03-22 2007-03-22 Anti-electric-shock garment

Publications (1)

Publication Number Publication Date
CA2682466A1 true CA2682466A1 (en) 2008-09-25

Family

ID=38728939

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002682466A Abandoned CA2682466A1 (en) 2007-03-22 2007-03-22 Anti-electric-shock garment

Country Status (10)

Country Link
US (1) US20100083429A1 (en)
EP (1) EP2142023B1 (en)
JP (1) JP2010522281A (en)
CN (1) CN101657117A (en)
AR (1) AR067250A1 (en)
BR (1) BRPI0721392A2 (en)
CA (1) CA2682466A1 (en)
EA (1) EA018617B1 (en)
PL (1) PL2142023T3 (en)
WO (1) WO2008114294A1 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8225428B2 (en) * 2008-08-08 2012-07-24 Honeywell International Inc. Protective hood
GB2493535A (en) * 2011-08-10 2013-02-13 Gore W L & Ass Uk Chemical protective garment
US9301558B2 (en) 2012-05-10 2016-04-05 Dan Schlager Cardiopulmonary lightning protection garment
CN103490329B (en) * 2013-09-18 2017-01-04 国家电网公司 Insulation clothing
EP2859804B1 (en) * 2013-10-09 2016-09-28 Abeba Spezialschuh-Ausstatter GmbH Multi-purpose shoe
KR101520252B1 (en) * 2013-11-22 2015-05-15 한국전기연구원 Working clothes for protecting electric shock
AT515266B1 (en) * 2014-01-02 2016-03-15 Markus Harml Sportswear system, sports equipment and sports system formed therefrom with anti-static function
USD742093S1 (en) * 2014-09-23 2015-11-03 Sir Killian Mathew Wells Lounge wear
US20170099888A1 (en) * 2015-10-12 2017-04-13 Kevin James Flynn Electrical safety device
US20170259154A1 (en) * 2016-03-08 2017-09-14 Jerome Glasser Electrically conductive mask-lame connector for sport fencing
IT201600084391A1 (en) * 2016-08-10 2018-02-10 Carraro S R L Headgear for shielding garment with face shield
US10897955B2 (en) 2016-08-30 2021-01-26 Ansell Limited Conductive soles for protective suits
US10182672B2 (en) * 2016-09-28 2019-01-22 Robert Nicholai Warming bag and snow suit combination
RU2668862C2 (en) * 2017-02-20 2018-10-03 Ольга Геннадьевна Котоменкова Antistatic kit with periodical easing of tensions of electrostatic field
USD843687S1 (en) * 2017-07-24 2019-03-26 Marc Beaver Snow pant, boot, jacket, and glove combination
RU2724563C1 (en) * 2018-04-16 2020-06-23 ЧЖАН Цзе Double-sided protective device for functional clothes manufacturing
JP1673964S (en) * 2019-08-14 2020-12-07
KR20220059466A (en) * 2019-09-11 2022-05-10 도레이 카부시키가이샤 hazmat suit
US11339297B2 (en) 2019-10-31 2022-05-24 Kevin Amsberry Method and composition for lightning protection
RU2733762C1 (en) * 2020-01-21 2020-10-06 Илья Александрович Кондрашов Protective electrical equipment signalling suit
RU201677U1 (en) * 2020-05-29 2020-12-28 Мария Александровна Осипова TEXTILE WITH FIXING ELEMENT
US20220304401A1 (en) * 2021-03-24 2022-09-29 Canvasback Waterfowl, LLC Single-piece construction, full-body wader

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1691472A (en) * 1925-06-25 1928-11-13 Graham Electrically-heated garment
US3164840A (en) * 1961-02-27 1965-01-12 Filtron Company Inc Radiation protective garment
JPS4713542Y1 (en) * 1968-06-18 1972-05-17
JPS4816882Y1 (en) * 1970-10-19 1973-05-15
JPS5025519Y2 (en) * 1971-04-01 1975-07-31
JPS5039838B2 (en) * 1971-11-12 1975-12-19
DE3300158A1 (en) * 1983-01-05 1984-07-05 Hasso von 4000 Düsseldorf Blücher Composite material, especially for protective suits
JPH02145802A (en) * 1988-11-22 1990-06-05 Masaya Nagashima Outfit for protection against electric shock
US5248548A (en) * 1991-11-22 1993-09-28 Memtec America Corporation Stainless steel yarn and protective garments
JPH06235103A (en) * 1993-02-08 1994-08-23 Ngk Insulators Ltd Thunder-proofing wear
DE4415372C2 (en) * 1994-05-02 1996-12-12 Ploucquet C F Gmbh Breathable protective clothing material for shielding against high-frequency electromagnetic fields and method for producing the carrier material
DE19500254C2 (en) * 1995-01-05 1999-01-14 Gore W L & Ass Gmbh EMC full body protective suit
US5715536A (en) * 1996-12-26 1998-02-10 Banks; David L. Static electricity dissipation garment
DE19743389C2 (en) * 1997-09-30 2000-11-23 Univ Dresden Tech Protective suit for work under high voltage
GB9803927D0 (en) * 1998-02-26 1998-04-22 Fenland Laundries Limited Dissipation of static electricity in workwear
JP3016761B2 (en) * 1998-06-03 2000-03-06 住友電気工業株式会社 Conductive work clothes
US6272694B1 (en) * 1999-09-24 2001-08-14 International Business Machines Corporation Enhanced interface for electrostatic discharge garment
JP2006205366A (en) * 2005-01-25 2006-08-10 Teijin Techno Products Ltd Metal laminated cloth and heat-resistant protective clothes comprising it
WO2007013141A1 (en) * 2005-07-26 2007-02-01 Mitsubishi Denki Kabushiki Kaisha Control device for elevator
WO2007088599A1 (en) * 2006-02-01 2007-08-09 Mitsubishi Denki Kabushiki Kaisha Door device for elevator
US7730998B2 (en) * 2006-03-20 2010-06-08 Mitsubishi Electric Corporation Elevator apparatus
EP2006232B1 (en) * 2006-04-13 2019-01-23 Mitsubishi Electric Corporation Elevator device
US7938231B2 (en) * 2006-07-27 2011-05-10 Mitsubishi Electric Corporation Elevator apparatus having independent second brake control
US7931127B2 (en) * 2006-08-03 2011-04-26 Mitsubishi Electric Corporation Elevator apparatus
US20080134407A1 (en) * 2006-12-12 2008-06-12 Carole Ann Winterhalter Disposable non-woven, flame-resistant coveralls and fabric therefor

Also Published As

Publication number Publication date
EP2142023B1 (en) 2015-05-13
EA018617B1 (en) 2013-09-30
JP2010522281A (en) 2010-07-01
WO2008114294A1 (en) 2008-09-25
EA201001542A1 (en) 2011-04-29
AR067250A1 (en) 2009-10-07
EP2142023A1 (en) 2010-01-13
PL2142023T3 (en) 2015-11-30
CN101657117A (en) 2010-02-24
US20100083429A1 (en) 2010-04-08
BRPI0721392A2 (en) 2013-01-01

Similar Documents

Publication Publication Date Title
US20100083429A1 (en) Engineered textile yarn
CA2682642C (en) Engineered textile yarn
EP0296203B1 (en) Knitted fabric having improved electrical charge dissipation and absorption properties
CN1045428A (en) The fabric of electromagnetic radiation shielding and with the clothes of its making
EP3281540B1 (en) Headgear with face shield for shielding garment
RU2612696C2 (en) Protective material and protective products of such material
RU2113811C1 (en) Protective clothing
EP3551791B1 (en) Electromagnetic shielding fabric and yarn for its manufacture
JP6016392B2 (en) Antistatic clothing
KR101297449B1 (en) An electrostatic discharge(esd) garment
CN106136356B (en) A kind of weaving face fabric clothes and its antistatic method with anti-static function
JP2008184705A (en) Heat-resistant and flame-retardant working wear
JP6960735B2 (en) Conductive clothing for power transmission
WO2008114295A1 (en) Accessory for anti-electric-shock garment
CN110042565A (en) A kind of fire-retardant arc protection blend based on fire extinguishing type fire-retardant regenerated cellulose fiber
ITMI20070572A1 (en) ELECTRIC ANTISHOCK GARMENT.
CN220280785U (en) Fencing clothing fabric
CN219353114U (en) Breathable sport pants
JP3238422U (en) protective textiles
CN210901478U (en) Arc-proof clothes
KR20120131054A (en) Conductive clothes for working on transmission lines
JP2000192321A (en) Electroconductive helmet cover
CN107268145A (en) A kind of mixed preparation technology for knitting fencing metallic plastron fabric of silver fiber
CN106192225A (en) A kind of open-wire line partition seam organization method and application thereof
KR20040035049A (en) Arm-Protecting Sleeve

Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued

Effective date: 20140324