BE1024410B9 - Safety screen against arcs and / or flame spread - Google Patents

Abstract

The present invention describes a safety screen, comprising a visor and one or more legs, which can preferably be placed over a conductive cable or sleeve and has the property to neutralize arcs and / or flame spread. The safety screen makes it possible to work safely on a conductive cable or sleeve.

Description

(30) Priority data:

(73) Holder (s):

ASG Technics BVBA 3650, DILSEN-STOKKEM Belgium (72) Inventor (s):

SALE Alessandro

3650 DILSEN STOKKEM

Belgium (54) Safety shield against arc flash and / or flashover (57) The present invention describes a safety shield, comprising a visor and one or more legs, which can preferably be placed over a conductive cable or sleeve and has the property of arc flash and / or neutralize flashover. The safety screen allows work to be carried out safely on a conductive cable or sleeve.

Fig. 1

BELGIAN INVENTION PATENT

FPS Economy, K.M.O., Self-employed & Energy

Publication number: 1024410 Filing number: BE2017 / 5440

Intellectual Property Office

International classification: H02G 7/00 H02G 1/00 Date of grant: 08/02/2018

The Minister of Economy,

Having regard to the Paris Convention of 20 March 1883 for the Protection of Industrial Property;

Having regard to the Law of March 28, 1984 on inventive patents, Article 22, for patent applications filed before September 22, 2014;

Having regard to Title 1 Invention Patents of Book XI of the Economic Law Code, Article XI.24, for patent applications filed from September 22, 2014;

Having regard to the Royal Decree of 2 December 1986 on the filing, granting and maintenance of inventive patents, Article 28;

Having regard to the application for an invention patent received by the Intellectual Property Office on 21/06/2017.

Whereas for patent applications that fall within the scope of Title 1, Book XI, of the Code of Economic Law (hereinafter WER), in accordance with Article XI.19, § 4, second paragraph, of the WER, the granted patent will be limited. to the patent claims for which the novelty search report was prepared, when the patent application is the subject of a novelty search report indicating a lack of unity of invention as referred to in paragraph 1, and when the applicant does not limit his filing and does not file a divisional application in accordance with the search report.

Decision:

Article 1

ASG Technics BVBA, Slakkenstraat 34, 3650 DILSEN-STOKKEM Belgium;

represented by

LAENEN Bart, Kempische Steenweg 542A, 3500, HASSELT;

a Belgian invention patent with a term of 20 years, subject to payment of the annual fees as referred to in Article XI.48, § 1 of the Code of Economic Law, for: Safety screen against arcs and / or flashover.

INVENTOR (S):

SALE Alessandro, Slakkenstraat 34, 3650, DILSEN-STOKKEM;

PRIORITY:

BREAKDOWN:

Split from basic application: Filing date of the basic application:

Article 2. - This patent is granted without prior investigation into the patentability of the invention, without warranty of the Merit of the invention, nor of the accuracy of its description and at the risk of the applicant (s).

Brussels, 08/02/2018,

With special authorization:

- 1 BE2017 / 5440

SAFETY SCREEN AGAINST FLY EYES AND / OR FLAHQ REPORT

TECHNICAL FIELD OF THE INVENTION

The present invention describes a safety screen, comprising a visor and one or more legs, which can preferably be placed over a conductive cable or sleeve and has the property of neutralizing arc arcs and / or flame excess. The safety screen allows work to be carried out safely on a conductive cable or sleeve.

BACKGROUND OF PE INVENTION

Work on electricity cables, electricity sleeves, ... pose enormous risks. Incorrect handling can lead to electrocution, serious injuries and even death. Such operations can create arc flashes, which originate in a powerful discharge between two or more conductors. Due to this discharge, the current will choose a random path, where a piasm arc can be formed and large amounts of energy can be released. The result is a powerful blowtorch (flame surplus), which can burn and / or kill the skilled person.

The person skilled in the art can protect himself against such flash arcs and / or flash overs by specially developed clothing, i.e. a protective suit, thick gloves and a helmet.

For example, US3458864 describes a headpiece with veil, in which the diaper covers a sufficiently large area of the upper body and thus protects the user against flash flames, etc.

US3427660, US2638592 and US20110030114 describe similar main requirements with visor and / or visor according to different embodiments.

However, such helmets are often poorly breathable, heavy and can quickly sweat the user on hot days. As a result, skilled craftsmen will tend to take off their helmet, the face shield will drop and the risk of burns and / or injury will increase again.

The present invention therefore describes a safety screen, comprising a visor and one or more legs, which can preferably be placed over a conductive cable or sleeve and has the property of neutralizing arc arcs and / or flame excess. The safety screen allows work to be carried out on a conductive cable or sleeve in a safe manner, and ensures that the skilled person can move freely and unrestrained around the conductive cable or sleeve and does not have to wear a helmet.

BE2017 / 5440

Some Arc Flash Protection Systems have already been described:

- US6Ö20560 which describes an enclosure to protect high voltage cabal from flashover from contact with a grounded object or other conductor. The sheath consists of a flexible panel, the ends of which can be clicked together and the inside of which contains an additional sheath that firmly encloses the high-voltage cable,

US2010218988 which describes an envelope consisting of 2 parts that can be oriented in relation to each other in a specific book and which encapsulate a high voltage wire which is held by gripping elements.

However, the above references do not have the same functionality as the invention described below.

SUMMARY OF THE INVENTION

The present invention describes a safety screen, comprising a visor and one or more legs, which can be placed over an object, preferably a conductive cable or sleeve, and has the property of neutralizing arcs and / or flashover.

In a specific embodiment, the visor of the safety shield is curved with a convex exterior and a concave interior.

In a specific embodiment, the inside of the visor is placed over the object in question.

In specific embodiments, the visor is made of plastic, it is transparent, height adjustable, and / and it is rotatable and / or tiltable relative to the object in question.

In addition, the visor can also be interchangeable.

In another embodiment, the one or more legs are located on the inside of the visor,

In certain embodiments, the one or more legs are extendable and / or have clamps for attaching the safety screen to the object in question.

- 3 BE2017 / 5440

In a further embodiment, the one or more legs are made of high impact polyamide.

Furthermore, a method of working safely on an object is described, preferably on a conductive cable or sleeve, using a safety shield as described above and below.

BRIEF DESCRIPTION OF PE FIGURES

With specific reference to the figures, it is emphasized that the details shown are for illustrative purposes only and only for the illustrative discussion of the various embodiments of the present invention. They are presented for the purpose of providing what is believed to be the most useful and forthcoming description of the principles and conceptual aspects of the invention. In this regard, no attempt is made to show more structural details of the invention than is necessary for a fundamental understanding of the invention. The description in combination with the figures makes clear to those skilled in the art how the various forms of the invention can be practiced,

Fig. 1: Front view of the safety guard (1), whereby the safety guard In this embodiment contains a visor (2} with two pairs of legs (3), wherein each pair of plates is located at the periphery of the screen and each pear legs ends at an idem (4), which in this embodiment comprise a conductive cable (5) The legs are extendable and the visor le tiltable.

Fig. 2; Side view of the embodiment described in Figure 1

DETAILED DESCRIPTION OF PE INVENTION

The present invention describes a safety screen (1), comprising a visor (2) and one or more legs (3), which can be placed over an object (5), preferably a conductive cable or sleeve, and has the property of arcing and / or neutralize flashover.

In a specific embodiment and as schematically shown in Figures 1 and 2,

BE2017 / 5440, the visor (2) of the safety shield (1) is curved with a convex exterior and a concave interior, the concave interior of the visor being placed over the object in question. This concave interior configuration ensures that arc flashes and / whether flashover is collected by the screen and is led away from the skilled person, so that the skilled person is optimally protected,

The dimensions of the safety screen (1) will be adapted to the size of the object over which it is placed and will comprise at least the necessary free working space for the skilled person. In a preferred application, the safety screen according to the invention is placed over a sleeve connection to the mains, and more particularly over sleeve connections on both transmission (high voltage) and distribution networks (medium voltage and low voltage distribution networks). Such sleeve joints are typically 40 cm long. In such an application, the safety shield (1) will be at least 50 cm long and 40 cm wide. Since the legal working space for such an application is set at min. 1m ³ , this ensures that the skilled person still has enough space when the screen is placed on an electrical socket.

In certain embodiments, the visor (2) is made of plastic, preferably polycarbonate, which has the property of being non-conductive and thus prevents the arc from advancing through the visor to the outside of the screen. In addition, the visor (2) is transparent, which allows the person skilled in the art to keep an overview during his actions on the object concerned (5), such as a conductive cable or sleeve. The visor (2) is preferably adjustable in height, so that the safety screen can be placed over the object (5) while retaining sufficient working space for the user without compromising the safe shielding of the object to be processed, in particular a conductive cable or sleeve. The flexibility in use can possibly be further increased by ensuring that the visor (2) is rotatable and / or tiltable relative to the object concerned (5). Thus, in an embodiment according to the invention, the safety screen (1) is further characterized in that the height is adjustable. In another embodiment according to the invention, the safety screen (1) is further characterized in the felt that the visor (2) is rotatable and / or tiltable relative to the object concerned (5). In a preferred form of the present invention, the safety screen (1) is further characterized in the fact

- 5 BE2017 / 5440 that it is adjustable in height and that the visor (2) is rotatable and / or tiltable in front of the object concerned (5). This ailes ensures that the professional is not inhibited in his movements, can coordinate his actions better and the screen does not get in the way. The current embodiments also allow to operate on the air network.

If the visor (2) is worn (i.e. presence of cracks, tears, ...), it is possible to replace the visor.

The one or more legs (3) are preferably located on the inside of the visor (2). Again ensuring that the clear working space is safeguarded under the safety screen, the one or more legs (3), preferably two or four, are arranged on the periphery, of the visor (2), more in particular peripherally and on the inside (concave side) of the visor. In the specific embodiment as shown in Figures 1 and 2, the visor (2) has a more or less rectangular curved shape and the legs (3) are located on the short sides of the visor.

As already indicated above, the safety screen (1) is preferably adjustable in height. Lift will be clear to the skilled person that this functionality can be achieved in various ways, such as a height-adjustable frame on which the visor (2) is mounted, or height-adjustable post (s) (3) and each of these known variants are within the scope of protection of the present invention. Thus, the rotatable and / or tilting arrangement of the visor (2) can also be done in different ways. and each of these solutions known to those skilled in the art are within the scope of the present invention. In a specific embodiment, both of the foregoing features are integrated into the leg or legs (3) of the safety screen (1). Integration of the height adjustability and rotatability in the legs (3) saves space, which only benefits the already limited working space. Thus, in an embodiment according to the invention, the safety screen (1) is characterized in that the one or more legs (3) are adjustable in height, preferably extendable. In a further embodiment, the safety screen (1) is characterized in the felt that the one or more legs (3) are hingedly connected to the visor (2), so that the visor is rotatable and / or tiltable opposite the one or more legs . In a specific embodiment of the present invention, the safety screen (1) is characterized in that the one or more legs (3)

- 6 BE2017 / 5440 are extendable and hingedly connected to the visor (2),

The safety screen (1) is placed over an object (5) in order to protect the manipulator against the dangers of working on the object such as solid particles or chips such as dust and splinters when working on the object; liquid splashes, for example when working with dangerous liquids; infrared or UV radiation; flames, such as arcs and / or flashover when working on a sleeve connection on the electricity grid, and more particularly on sleeve connections on both transmission (high voltage) and distribution networks (medium voltage and low voltage distribution networks),

The energy associated with such hazards may be high, such as, for example, in an arc flash or flashover, that the safety shield is best anchored to prevent the shield from being knocked out when such a hazard occurs. Thus, in a further embodiment of the present invention, the safety screen (1) is provided with one or more anchoring elements (4), such as clamps, pins, and the like. In a specific embodiment, the one or more legs (3) are provided with anchoring elements (4).

For the application to a sleeve connection on the electricity grid, and more particularly about sleeve connections on both transmission (high voltage) and distribution networks (medium voltage and low voltage distribution networks), the anchoring elements (4) will preferably consist of clamps which electricity cable can be secured; more particularly clamps on the free ends of the one or more legs. By sprouting the cable on either side of the sleeve, such safety screens, according to an embodiment of the present invention, prevent the cable from swinging uncontrollably when an arc or flashover occurs, thereby increasing safety for the user.

In certain embodiments, the one or more legs (3) are extendable, so that the safety shield (1) can optimally cover each cable or sleeve, and / or have clamps (4) for fastening the safety shield to the object (5) concerned and it can be guaranteed at all times that the screen will stay securely in place and not fall over. In addition, these legs provide additional grounding. In the embodiment as shown in Figure 1, the clamps (4) are also rotatable opposite the power cable and provide or contribute to the rotatable and / or

- 7 BE2017 / 5440 can be tilted from the safety screen (1) relative to the object (5) (sleeve) over which it is placed. In a further embodiment, the one or more legs (3) are made of high impact polyamide.

Furthermore, a method of working safely on an object (5), preferably on a conductive cable or sleeve, is described by using a safety shield (1) as described above and below.

- 8 BE2017 / 5440

Claims (11)

CONCLUSIONS A safety screen (1), which can be placed over an object (5), preferably a conductive cable or sleeve, and has the property of neutralizing arcs and / or flashover, comprising a visor (2) with inside of the visor one or more legs (3) which can be placed on or over the object concerned. A safety shield (1) as described in claim 1, the visor (2) of which is curved with a convex exterior and a concave interior. A safety screen (1) as described in any one of the preceding claims, the visor (2) of which is made of plastic. A safety shield (1) as described in any one of the preceding claims, the visor (2) of which is transparent. A safety screen (1) as described in any one of the preceding claims, the visor (2) of which is adjustable in height. A safety screen (1) as described in any one of the preceding claims, the visor (2) of which is rotatable and / or tiltable relative to the object concerned (5). A safety screen (1) as described in any one of the preceding claims, the visor (2) of which is exchangeable. A safety screen (1) as described in any one of the preceding claims, the one or more legs (3) of which are extendable. A safety screen (1) as described in any one of the preceding claims, the one or more legs (3) of which have anchoring elements (4) for fixing the safety screen on the object (5) concerned. A safety screen (1) as described in any one of the preceding claims, the one or more legs (3) of which are made of high - 9 BE2017 / 5440 impact polyamide. 11. A method of working safely on an object (5), preferably a conductive cable or sleeve, using a safety shield (1) as described in any preceding claim. - 10 BE2017 / 5440