SI9300600A2 - Component for connection of short circuit and earthing device on protective base - Google Patents

Component for connection of short circuit and earthing device on protective base Download PDF

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Publication number
SI9300600A2
SI9300600A2 SI9300600A SI9300600A SI9300600A2 SI 9300600 A2 SI9300600 A2 SI 9300600A2 SI 9300600 A SI9300600 A SI 9300600A SI 9300600 A SI9300600 A SI 9300600A SI 9300600 A2 SI9300600 A2 SI 9300600A2
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SI
Slovenia
Prior art keywords
short
circuit
connection
safety
low
Prior art date
Application number
SI9300600A
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Slovenian (sl)
Inventor
Marjan Zorman
Original Assignee
Marjan Zorman
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.)
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Publication date
Application filed by Marjan Zorman filed Critical Marjan Zorman
Priority to SI9300600A priority Critical patent/SI9300600A2/en
Publication of SI9300600A2 publication Critical patent/SI9300600A2/en

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Abstract

Priključni element omogoča priključitev kratkostične in ozemljitvene priprave na nizkonapetostne kabelske priključke v nizkonapetostnih stikalnih blokih in nizkonapetostnih razdelilnih omaricah z varovalnimi podnožji ali varovalnimi letvami velikosti 150, 400 in 630 A v smislu varstva pri delu. Kratkostična zmogljivost priključnega elementa znaša 5 kA 1 sek. Z uporabo neuporabnih - pregoretih varovalnih vložkov ima rešitev tudi ekološki pomen.The connecting element allows connection of the short circuit and grounding to low-voltage cable connections in low voltage switchgear and low voltage switchgear cabinets footings or guard rails of size 150, 400 and 630 A in terms of occupational safety. Short-circuit performance connection element is 5 kA 1 sec. Z the use of unusable - blown protective inserts the solution also has ecological significance.

Description

(57) Priključni element omogoča priključitev kratkostične in ozemljitvene priprave na nizkonapetostne kabelske priključke v nizkonapetostnih stikalnih blokih in nizkonapetostnih razdelilnih omaricah z varovalnimi podnožji ali varovalnimi letvami velikosti 150, 400 in(57) The connection element allows the short-circuit and grounding device to be connected to low-voltage cable connections in low-voltage switchgear and low-voltage distribution cabinets with 150, 400 and

630 A v smislu varstva pri delu. Kratkostična zmogljivost priključnega elementa znaša 5 kA 1 sek. Z uporabo neuporabnih - pregoretih varovalnih vložkov ima rešitev tudi ekološki pomen.630 A in terms of occupational safety. The short-circuit capacity of the connection element is 5 kA for 1 sec. The use of unusable - blown protective inserts also has ecological significance.

Sl 9300600 A2Sl 9300600 A2

Naziv :Name:

Element za priključitev kratkostične in ozemljitvene priprave na varovalna podnožja ali varovalne letve.Element for connecting short-circuits and earthing devices to safety pads or guard rails.

Področje :Area :

ELEKTROTEHNIKAELECTRICAL ENGINEERING

Opis:Description:

Priključni element posega v področje elektrotehnike v smislu varstva pri delu.The connecting element encroaches on the field of electrical engineering in terms of occupational safety.

Večni problem pri vzdrževalnih delih v nizkonapetostnem kabelskem omrežju ali nizkonapetostnem omrežju s samonosilnimi kabelskimi snopi je ozemljevanje in kratkostikanje priključkov v nizkonapetostnih stikalnih blokih in nizkonapetostnih razdelilnih omaricah, ki so priključeni na varovalna podnožja ali varovalne letve.A major problem with maintenance work on a low-voltage cable network or a low-voltage network with self-supporting wiring harnesses is to ground and short-circuit the terminals in the low-voltage switchgear and low-voltage distribution boxes that are connected to the protective sockets or fuses.

Težave nastopijo zaradi premalo razpoložljivega prostora pri priključnih mestih. Priključne sponke, ki jih izdeluje Mehanika” Trbovlje v te namene, ni možno uporabiti tako, da je kvaliteta in zanesljivost stika in ozemljevanja prepuščena iznajdljivosti in strokovnosti posameznika. Postopek ozemljevanja in kratkega stikanja je eno od petih zlatih pravil pri vzdrževanju elektroenergetskih naprav, in te so:Problems arise due to insufficient space available at the connection points. The terminal blocks made by Trbovlje Mechanics for these purposes cannot be used in such a way that the quality and reliability of contact and earthing are left to the ingenuity and professionalism of the individual. The earthing and short-circuiting process is one of the five golden rules for maintaining electrical appliances, and these are:

1. Izklopi napravo iz vseh smeri1. Turn off the device from all directions

2. Onemogoči ponovni priklop naprave2. Disables reconnecting the device

3. Prepričaj se, če je naprava brez napetosti3. Make sure the device is unplugged

4. Napravo ozemlji in kratko stakni4. Ground the device and short the window

5. Napravo zavaruj od delov pod napetostjo.5. Secure the device against live parts.

Rešitev opisanega problema je prikazana na sliki 1. Element je sestavljen iz pregoretega-neuporabnega varovalnega vložka, tipa NV 1.1., priključnega vijaka 1.3. in izolacije 1.2., kot je prikazano na sliki 1.The solution to the problem described is shown in Figure 1. The element consists of a burnt-out usable guard insert, type NV 1.1., A connecting screw 1.3. and insulation 1.2., as shown in Figure 1.

Pred sestavo je potrebno:Before assembly, it is necessary to:

- varovalnemu elementu tipa NV, ki je sestavljen iz keramičnega telesa kvadraste oblike in na katerega sta z obeh strani pritrjena kontaktna elementa, očistiti ostanke talilnih elementov varovalke ter odstraniti kvarčni pesek;- a NV type safety element consisting of a quad shaped ceramic body and to which contact elements are attached on both sides, to clean the remains of the fuse elements of the fuse and to remove quartz sand;

- izdelati utor v keramično telo varovalnega vložka s pomočjo diamantne rezalne plošče. Utor se izdela na tisti strani, kjer se bo montiral priključni vijak. Lega utora se vidi na sliki 1;- Make a groove into the ceramic body of the retaining insert using a diamond cutting board. The groove is made on the side where the connecting screw will be mounted. The position of the groove can be seen in Figure 1;

- priključnemu vijaku, ki je izdelek Mehanika Trbovlje, je potrebno posneti izolacijo v dolžini 50 mm in ga skrajšati za 10 mm na strani brez navoja. Priključni vijak je izdelan iz Cu, je galvansko posrebren in izoliran;- the connection screw, which is a product of Trbovlje Mechanics, must be insulated 50 mm long and shortened by 10 mm on the threaded side. The connecting screw is made of Cu, galvanized and insulated;

- v kontaktni del, ki ga bomo ožemijevali, se izvrta luknja premera 7,5 mm v neposredni bližini pritrdilne ploščice s katero pritrdimo preko vijakov kontakt na nosilno ploščico. Le-ta je pritrjena na keramično telo varovalnega vložka. Luknja je potrebna za prehod neizoliranega dela priključnega vijaka in s tem zagotavljanja kvalitetnega galvanskega spoja.- A hole of 7.5 mm diameter is drilled into the contact part to be screwed in, in the immediate vicinity of the mounting plate, by which the contact is fixed to the mounting plate. It is attached to the ceramic body of the protective insert. The hole is required for the passage of the non-insulated part of the connecting screw and thus ensuring a high-quality galvanic joint.

Galvanski spoj med priključnim vijakom in kontaktom varovalnega vložka izvedemo s pomočjo dveh vijakov M 5x20, navadnih, vzmetnih podložk in navojev, ki so že izdelani na pritrdilni ploščici kontakta ali s spojkanjem.The galvanic connection between the connecting screw and the contact of the protective insert is made by means of two M 5x20 screws, plain, washers and threads already made on the contact mounting plate or by coupling.

25. ii. 'nji,25. ii. 'them,

Claims (2)

Osnovni element Ί.1. mora zagotavljati ločilno razdaljo med delom pod napetostjo in delom, ki ga želimo ozemljiti.Basic element Ί.1. it must provide a separation distance between the live part and the part we want to ground. Da povečamo ločilno razdaljo in preprečimo nenamerni dotik pri montaži kratkostične naprave, dodatno izoliramo del, ki je v mehanskem stiku z delom pod napetostjo.In order to increase the separation distance and to prevent unintentional contact when mounting a short-circuit device, we isolate the part that is in mechanical contact with the live part. Predlagan element je mogoče enostavno z izolacijsko ročko vstaviti v vsako fazo varovalnega podnožja ali varovalne letve velikosti 250, 400 in 630 A. Na nevtralni ali PEN vodnik priključimo trajni priključek, sl. 2.The proposed element can be easily inserted with an insulating handle into each phase of the protective base or the safety rails of sizes 250, 400 and 630 A. A permanent connector is attached to the neutral or PEN conductor, fig. 2. Za boljše razumevanje podajam shematski prikaz uporabe na sliki 3Priključni vijak 1.3. je tako galvansko povezan po vstavitvi v varovalno podnožje preko kovinskega dela varovalnega elementa in kontakta s priključnim kablom. Priključni vijak omogoča priključek kratkostične in ozemljitvene naprave proizvod Mehanika Trbovlje. Kratkostična zmogljivost priključka naj bi znašala 5,0 kA; 1 sek.For better understanding, I give a schematic illustration of the use of Figure 3Connecting screw 1.3. it is thus galvanically connected after insertion into the protective base via the metal part of the safety element and contact with the connecting cable. The connection screw enables the connection of the short-circuit and grounding device of the product Mechanics Trbovlje. The short-circuit capacity of the connector is expected to be 5.0 kA; 1 sec. Bistvo predlagane rešitve je omogočiti zanesljivo, enostavno in kvalitetno montažo kratkostičnih in ozemljitvenih naprav ter s tem izpolnjevanje petih zlatih pravil v celoti.The essence of the proposed solution is to enable reliable, simple and high-quality installation of short-circuit and grounding devices, thus fulfilling the five golden rules altogether. (). 11¾(). 11¾ Zahtevek :Claim: Element za priključitev kratkostične In ozemljitvene priprave na varovalna podnožja in varovalne letve velikosti 250, 400, 630 A s kratkostično zmogljivostjo priključka 5 kA; 1 sek in je značilen po tem, da je uporabljen kot osnovni element že pregoret - neuporaben varovalni vložek tipa NV, kateremu z odstranitvijo ostankov talilnega elementa in dodajanjem priključnega vijaka ter izolacije, spremenimo njegovo prvotno funkcijo varovanja el. tokokrogov in naprav pred posledicami kratkega stika.Element for connection of short-circuit and grounding device to safety sockets and fittings of size 250, 400, 630 A with short-circuit capacity of 5 kA connection; 1 sec and characterized in that it is already used as a base element - already unusable NV type insulation, which by removing the remnants of the melting element and adding a connecting screw and insulation, changes its original elec- tronic protection function. circuits and devices before the consequences of short circuit. Izvleček :Abstract: Element za priključitev kratkostične in ozemljitvene priprave na varovalna podnožja ali varovalne letve.Element for connecting short-circuits and earthing devices to safety pads or guard rails. Priključni element na sl. 1. omogoča priključitev kratkostične in ozemljitvene priprave na nizkonapetostne kabelske priključke v nizkonapetostnih stikalnih blokih in nizkonapetostnih razdelilnih omaricah z varovalnimi podnožji ali varovalnimi letvami velikosti 250, 400 in 630 A v smislu varstva pri delu. Kratkostična zmogljivost priključnega elementa znaša 5 kA 1 sek.The connecting element of FIG. 1. enables connection of short-circuit and grounding devices to low-voltage cable connectors in low-voltage switchgear and low-voltage distribution boxes with safety sockets or 250, 400 and 630 A safety fuses in terms of occupational safety. The short-circuit capacity of the connection element is 5 kA for 1 sec. Z uporabo neuporabnih-pregoretih varovalnih vložkov ima rešitev tudi ekološki pomen.With the use of unusable-blown protective inserts, the solution also has ecological significance. s.Us.U 2.12.1
SI9300600A 1993-11-18 1993-11-18 Component for connection of short circuit and earthing device on protective base SI9300600A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9300600A SI9300600A2 (en) 1993-11-18 1993-11-18 Component for connection of short circuit and earthing device on protective base

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SI9300600A SI9300600A2 (en) 1993-11-18 1993-11-18 Component for connection of short circuit and earthing device on protective base

Publications (1)

Publication Number Publication Date
SI9300600A2 true SI9300600A2 (en) 1994-06-30

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