EP0017024A1 - Borne de connexion - Google Patents

Borne de connexion Download PDF

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Publication number
EP0017024A1
EP0017024A1 EP19800101247 EP80101247A EP0017024A1 EP 0017024 A1 EP0017024 A1 EP 0017024A1 EP 19800101247 EP19800101247 EP 19800101247 EP 80101247 A EP80101247 A EP 80101247A EP 0017024 A1 EP0017024 A1 EP 0017024A1
Authority
EP
European Patent Office
Prior art keywords
edge zones
clamp
terminal
clamping
zones
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.)
Granted
Application number
EP19800101247
Other languages
German (de)
English (en)
Other versions
EP0017024B1 (fr
Inventor
Martin Storz
Herbert Strauss
Heinz Schlotz
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.)
Karl Pfisterer Elektrorechnische Spezialartikel GmbH and Co KG
Original Assignee
Karl Pfisterer Elektrorechnische Spezialartikel GmbH and Co KG
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
Priority claimed from DE2912462A external-priority patent/DE2912462C2/de
Priority claimed from DE19792949895 external-priority patent/DE2949895C2/de
Application filed by Karl Pfisterer Elektrorechnische Spezialartikel GmbH and Co KG filed Critical Karl Pfisterer Elektrorechnische Spezialartikel GmbH and Co KG
Priority to AT80101247T priority Critical patent/ATE2587T1/de
Publication of EP0017024A1 publication Critical patent/EP0017024A1/fr
Application granted granted Critical
Publication of EP0017024B1 publication Critical patent/EP0017024B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H01R4/46—Clamping area between two screws placed side by side
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H01R4/44—Clamping areas on both sides of screw

Definitions

  • the invention relates to a switchgear clamp with a clamp bottom part and at least one forming a clamping channel together with the clamp lower part at least, q uerela- stica clamp top portion on both parallel to the clamping channel extending sides has a respective edge zone and is clamped together by means of at least one screw with the clamp base.
  • switchgear terminals not only the lower part, but also the upper part by ribs or the like. stiffen enough to be practically rigid. With these terminals, there was a significant deterioration in contact over time, at least partially was due to creeping of the conductor material, as occurs in particular with stranded conductors. The creeping of the conductor material namely results in a change in shape of the conductor, which the terminal body cannot follow due to its rigid design, which leads to a more or less severe reduction in the contact pressure.
  • the invention is therefore based on the object of providing a switchgear terminal block which is able to compensate for relatively large changes in shape of the conductor clamped in the clamping channel without disturbing reduction in the contact pressure, but is nevertheless inexpensive.
  • This object is achieved according to the invention with a switchgear terminal of the type mentioned at the outset in that the two lateral edge zones are angled inwards and at least each have a bore for the engagement of one of the screws provided for tightening or partially limit one of the clamping channels.
  • a cover clamp top part allows it in contrast to the profile shapes of the known terminal body parts of switchgear terminals, to realize a relatively soft spring characteristic, by means of which the cover, with its contact web or contact webs, is also able to make major changes in the shape of the conductor as a result of a flow of the conductor material without a substantial reduction in the contact pressure to follow. Since the elasticity is achieved solely by the shape of the cover, additional spring elements or the like are not required, the clamp according to the invention is inexpensive and also easy to assemble.
  • the soft spring characteristic curve also makes it possible to bridge a relatively large conductor cross-sectional area with the clamp, ie to securely clamp conductors with a relatively large difference in their conductor cross-section.
  • the design of the clamp according to the invention makes it possible, by virtue of its favorable spring characteristic, when the screws engage in the edge zones, to bring the side edge zones of the cover or the cover into contact with the lower part of the terminal in all conductor cross sections lying in the area of application, as a result of which the cover is used to draw current can be.
  • the centrally arranged web can be brought into contact with the lower part of the terminal and the cover can thus be used for power conduction.
  • the clamp according to the invention therefore comes very close to the ideal case of the round encirclement of the conductor. The result is a reduction in the weight of the clamp and, if several lids are provided, a reduction in the number of lids, which also leads to a reduction in costs.
  • the lower part of the clamp can also be designed in the same way as the cover if a corresponding elasticity of the lower part of the clamp is required or desired.
  • the dimensions of the cover are preferably chosen so that those arising from the clamping force of the screws Material stresses are close to or above the a o , 2 limit of the material.
  • the two edge zones of the cover can have projecting contact elements on their side facing the lower part of the clamp.
  • ring cutting edges can be provided as contact elements, which are arranged concentrically to the holes for the screws.
  • contact elements could also be provided on the lower part of the terminal.
  • the contact web running in the longitudinal direction of the clamping channel has an increasing width towards its free end forming the contact surface. With such a contact web you get both favorable contact conditions and favorable suspension properties.
  • the free end of the contact web preferably forms a groove running in the longitudinal direction of the clamping channel, the flanks of which are the contact surfaces and preferably enclose an obtuse angle.
  • the sections of the cover between the middle zone and the edge zone form a carrier, on which, in different areas, mutually opposing bending moments act due to the force of the tensioning screws. It is in the inner region adjacent to the central zone with the contact web that there is an internal bending moment directed downwards (towards the lower part of the terminal) which, if it were only effective, would cause the edge zone in question to be inclined in such a way that the section of the edge zone furthest away from the central zone would be more closely approximated to the lower part of the clamp.
  • the inclined positions of the edge zones cancel due to the inner bending moment and the outer bending moment, so that the edge zones experience a pure parallel displacement during the clamping process as whether the supports in the sections between the central zone and the lateral edge zones of the cover would be provided with a joint at the moment-free point, ie at the point between the area of the inner bending moment and the area of the outer bending moment.
  • the cover preferably has at the two moment-free points of the sections between the central zone and the edge zone a minimal strength.
  • a switchgear terminal for connecting two conductor ropes arranged coaxially in the region of their mutually facing ends has a lower part 1 which extends over the entire terminal length and is stiffened by a longitudinal rib 2 and transverse ribs 3 and therefore how a rigid body practically does not deform under the action of the forces acting on it.
  • the lower part 1 is assigned two covers 4 of the same design which are arranged next to one another in their longitudinal direction and have a strongly rounded outer contour. In the exemplary embodiment, this outer contour is correct with the Outer contour of the lower part 1 in the area of its transverse ribs 3 match. However, more than two or only one cover could also be provided.
  • the flat inner surface 5 of the lower part 1 facing the two covers 4 is interrupted in the longitudinal central zone by a conductor channel 6 which is semicircular in cross section and open towards the covers, which extends over the entire length of the lower part 1 and the clamping channel 7 in the region of the lower part 1 limited.
  • the conductor channel 6 could also have a different contour if this would be necessary to adapt to different conductor cross sections or for other reasons.
  • the lid 4 are preferably made of an elastic material and as an extruded profile or pressed part.
  • the lower clamp part can be a cast body or a pressed part. In contrast to the latter, the lids are not rigid, but are made transversely elastic.
  • the cross-sectional profile of the cover 4 is, apart from a contact web 14 which lies in the longitudinal central zone and extends over the entire length of the cover and projects towards the lower part 1, since the two lateral edge zones 9 and 9 'are angled inwards, that is to say face each other and thereby face one or the other part of the inner surface 5 interrupted by the conductor channel 6 in the assembled state.
  • the width of the cover 4 is adapted to the width of the lower part, and as at the transition from the outer surface of the lower part 1 to the side surface 5, the edges at the cover 4 are at the transition from the outer surface to the outer side 11 of the edge zones 9 and 9 'facing the lower part 1 is rounded off.
  • the edge zones 9 and 9 'lying parallel to the inner surface 5 in the assembled state are penetrated in the exemplary embodiment by two threaded bores 12 spaced apart from one another in the longitudinal direction of the clamp, the longitudinal axis of which is perpendicular to the outside 11 and which are each aligned with a through hole 13 in the lower part of the clamp.
  • the number of threaded holes 12 that each cover 4 has depends on its size, especially from its length, and can be chosen according to the requirements.
  • the edge zones 9 and 9 'each have a strip-like thickening on their inside.
  • the wall thickness of the cover 4 increases, as shown in FIG. 1, from the point of transition to the edge zone 9 or 9 'towards the central zone, in which a contact web 14 projects from the inside towards the clamping channel 7 and is symmetrical to the longitudinal central plane of the lid is formed and extends over its entire length.
  • the contact web 14, as shown in Fig. 1 has a fishtail-like cross-sectional shape, i.e. the fillet 15 adjoining the / surface 15 of the cover widens at its base from a value which is approximately half the diameter of the clamping channel 7, towards its free end to a value almost twice as large, and the free end forms a groove 16 which extends over the entire web length and is oriented towards the conductor channel 6.
  • Narrow slots are present between the pole horn-like lateral end regions of the contact web 14 and the edge zones 9 and 9 ', so that the edge zones 9 and 9' are relative can move to the contact bridge. Otherwise, however, the two cavities 17 formed by each cover 4 and extending over the entire length of the cover are closed on their circumference.
  • the flanks 18 of the throat 16 are flat in the exemplary embodiment and form an obtuse angle, which is selected such that there is good contact with the conductor lying in the clamping channel.
  • the bottom of the throat 16 is rounded.
  • the covers 4 are pulled against the lower terminal part by means of screws 19 which penetrate the through bores 13 and engage in the threaded bores 12.
  • Large, reinforced washers 22 are placed under the screw heads. It supports
  • the covers 4 are preferably dimensioned such that the material tensions in the cover caused by the clamping force of the screws 19 are close to or above the ⁇ 0.2 limit of the material. When the screws are tightened, the tension occurring in the cover then drops until an equilibrium is established between the contact pressure of the cover on the cable and the creep resistance of the cable material. For materials without a pronounced yield point, o, 2% permanent are left. Stretch too.
  • the soft spring characteristic of the cover 4 would also allow the screws 19 to be tightened beyond the position of the cover 4 shown in the left half of FIG. 1 until the outside 11 of the edge zones 9 and 9 'on the inside surface 5 of the Lower part 1 is present.
  • Such extensive deformation of the cover 4 has the advantage that it can be used in addition to the lower part 1 for power transmission.
  • the exemplary embodiment according to FIG. 2 differs from the exemplary embodiment according to FIG. 1 only in this contact improvement, which is why the corresponding parts are provided with reference numbers that are one hundred times larger.
  • cutting edges 121 projecting beyond the outer side 111 are preferably formed, which penetrate into the inner surface 1 0 5 of the lower part 1 0 1 , if the edge zones lo9 and 1 0 9 'are brought into contact with the inner surface 1 0 5 by means of the screws 119.
  • the cutters 121 provide excellent contact between the covers lo4 and the lower part 1ol.
  • the covers can make a considerable contribution to the current transmission. This is even more the case if the conductor also comes into contact with the end faces of the edge zones 109 and 1 0 9 'facing the clamping channel. In this case, the contact conditions come very close to the ideal all-round enclosure of a conductor.
  • the clamp according to FIG. 2 / is designed in the same way as that according to FIG. 1, it has the same advantages as this, that is also the relatively soft spring characteristic, which largely excludes a drop in the clamping pressure due to creeping of the material, and also allows the terminal to be adapted to conductors with very different cross-sections.
  • the clamp according to the invention can not only be designed as a connecting clamp. Rather, it can replace all those types of terminals that have a lower part and at least one cover, as is the case, for example, with branch terminals.
  • a switchgear terminal for connecting two conductor ropes arranged coaxially in the region of their mutually facing ends has, according to FIG. 3, a lower part 201 which extends over the entire terminal length and which is formed by a longitudinal rib 202 and transverse ribs 203 is stiffened and therefore practically does not deform like a rigid body under the action of the forces acting on it.
  • the lower part 201 is assigned two identically designed covers 204 which are arranged next to one another in their longitudinal direction and have a strongly rounded outer contour. However, more than two or only one cover could also be provided.
  • the flat inner surface 205 of the lower part 201 facing the two covers 204 is interrupted in the longitudinal center zone by a conductor channel 206 which is semicircular in cross section and open towards the covers, which extends over the entire length of the lower part 201 and a clamping channel 207 in the region of the lower part 201 limited.
  • the conductor channel 206 could also have a different contour if this would be necessary to adapt to different conductor cross sections or for other reasons.
  • the covers 204 are preferably made of an elastic, metallic material and as an extruded profile or pressed part.
  • the lower clamp part can be a cast body or a pressed part. In contrast to the latter, the lids are not rigid, but are made transversely elastic.
  • the cross-sectional profile of the cover 204 is, apart from a contact web 214 which lies in its longitudinal central zone 208 and extends over the entire length of the cover and projects towards the lower part 201, since the the two lateral edge zones 209 and 209 'are angled inwards, that is to say they face each other and are therefore opposite one or the other part of the inner surface 205 interrupted by the conductor channel 206 in the assembled state.
  • the width of the lid 204 is as Fi g . 3 shows, adapted to the width of the lower part, and as at the transition from the outer surface area of the lower part 201 to the inner surface 205, the edges 204 are also at the cover 204 at the transition from its outer surface area 210 to the lower part 201 facing outer side 211 of the edge zones 209 and 209 ' rounded.
  • the edge zones 209 and 209 'lying parallel to the inner surface 205 are penetrated in the exemplary embodiment by two threaded bores 212 which are spaced apart from one another in the longitudinal direction of the clamp, the longitudinal axis of which is perpendicular to the outside 211 and which are each aligned with a through hole 213 of the lower part of the clamp.
  • the number of threaded bores 212 which each cover 204 has depends on its size, in particular on its length, and can be chosen according to the requirements. In order to obtain the greatest possible length of the threaded bores 212, the edge zones 209 and 209 1 each have a strip-like thickening on their inside.
  • the contact web 214 projecting from the inside of the central zone towards the clamping channel 207 is symmetrical to the longitudinal center plane of the cover and extends over its entire length.
  • 3 shows a fishtail-like cross-sectional shape, that is to say the contact web 214 adjoining the inner surface 215 of the cover by rounding widens at its base from a value which is approximately half the diameter of the clamping channel 207, towards its free end a value almost twice as large, and the free end forms a groove 216 which extends over the entire length of the web and is oriented towards the conductor channel 206.
  • the covers 204 are pulled against the lower clamp part by means of screws 219 which penetrate the through bores 213 and engage in the threaded bores 212. Washers 222 are placed under the screw heads. When the screws 219 are tightened, the contact web 214 is supported on the conductor lying in the conductor channel 206, so that there is a deformation of the cover 204 in its support-like sections 221 and 221 located between the central zone 208 and the edge zones 209 and 209 ''comes.
  • the contact web 214 due to the spring force of the deformed sections 221 and 221 ', can follow deformations of the conductors, such as occur, for example, as a result of creeping of the conductor material, without the clamping pressure acting on the conductor in the clamping channel 207 is exerted by the lower part 201 and the covers 204; noticeably decreases.
  • Rig .. 3 shows the state of the switchgear clamp before tightening the screws 219, ie before moving the outer sides 211 of the cover against the inner surfaces 205 of the lower part 201.
  • a special feature of the switchgear clamp shown here is that the edge zones 209 and 209 'of Only experience a parallel displacement of the cover when tightening it, i.e. only in the way against the clamp underneath Part 201 are moved that the outer sides 211 of the edge zones always remain parallel to the facing inner surfaces 205 of the lower part 201 under all bending moments. This is achieved by a special shape of the cross section in the sections 221 and 221 'between the central zone 208 and the edge zones 209 and 209' of the cover.
  • arrows 223 and 224 indicate the direction of the opposing bending moments which occur in the support part 226 respectively. in the carrier part 227 due to the screw force indicated by an arrow P.
  • FIG. 4a to 4c illustrate the relationships that result from the bending moments.
  • the inner bending moment M i ' which is directed downwards in accordance with the arrow 223 from FIG. 3, occurs in FIG. 4 between the point without bending moment marked 0 and the point marked A, which represents the rigid anchoring of the carrier part 226.
  • the support parts 226 and 227 which are subjected to bending, are formed between the positions 0 and A or the positions 0 and P as supports of the same load.
  • the cover can be made very thin at point 0, since it is free of torque. With regard to the characteristic curve for the resilient deflection of the cover, there are therefore particularly favorable conditions.
  • the fourth exemplary embodiment shown in FIGS. 5 and 6 differs from the previously described exemplary embodiments primarily in that two clamping channels 307 which are located parallel and at a distance from one another are provided.
  • the lower clamp part 301 which is a substantially rigid body and is, for example, cast or pressed, is therefore provided with two conductor channels 306 which are open towards the covers 304 and which extend over the entire length of the lower part.
  • the flat inner surface 305 of the lower terminal part 301 facing the covers lies between these two conductor channels.
  • the lower clamp part 301 is assigned two covers 304 of the same design, which are arranged next to one another in the longitudinal direction of the two clamp channels 307 at a short distance.
  • the lower clamp part 301 projects beyond the cover 304 in the longitudinal direction of the clamp channels 307, but could of course also terminate with the cover.
  • each cover 304 is electrically well conductive, but consists of an elastic material, in particular a corresponding aluminum alloy. It is therefore cross-elastic.
  • the two lateral edge zones 309 and 309 'of the cover 304 are bent inwards. However, they do not engage the screws 319, which clamp the covers and the lower part of the clamp. Rather, the lateral edge zones 309 and 309 'limit the two clamping channels 307 in the area of the cover. Therefore, the lateral edge zones form clamping jaws for the conductor lying in the conductor channels 306, which are pressed against the conductor in a resilient manner with a soft spring characteristic.
  • the available spring travel is so large that even with conductors with a relatively large deviation in diameter from the nominal value, good contact quality can be maintained over long periods of time.
  • the two edge zones 309 and 309 ' have an almost constant thickness over their width measured in the circumferential direction of the clamping channel.
  • the two edge zones 309 and 309 'on the side facing the clamping channel 307 each form a throat 316, the flanks of which form an obtuse angle. Even with different conductor cross-sections. This ensures a defined positioning of the conductor in the throat and good contact.
  • Good contacting is important insofar as there is an electrically good conductive connection between / cover 304 and the lower terminal part 301, because of the connection to the central zone of the Formed lid and extending between the edge zones 309 and 309 'against the lower terminal part 301 web 314 when the terminal is closed with its flat end face against the flat inside 305 of the lower terminal part with great pressure.
  • the screws 319 one of which is provided for each cover 304 in the exemplary embodiment, penetrate a through bore provided in the lower clamp part 301 and aligned with the web 314 and engage in a threaded bore 312 provided in the web 314.
  • the thickness of those two zones of the cover 304, to which the edge zones 309 and 309' are connected takes against the central zone of the web 314 which carries the web 314 Lid relatively strong, from a value that is at most equal to the thickness of the edge zone at the transition to the edge zone to about four times the value.
  • a maximum length of this zone extending from the edge zone to the middle zone of the cover is achieved in the exemplary embodiment in that the web 314 is provided on the sides facing the two edge zones with a throat, which together form a constriction, and that the inner sides 315 in one or the other of the two throats open.
  • the two zones which each carry one of the two edge zones at their outer end, can be designed as a carrier with the same stress over the carrier length.

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  • Clamps And Clips (AREA)
EP19800101247 1979-03-29 1980-03-12 Borne de connexion Expired EP0017024B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80101247T ATE2587T1 (de) 1979-03-29 1980-03-12 Schaltanlagenklemme.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE2912462A DE2912462C2 (de) 1979-03-29 1979-03-29 Schaltanlagenklemme
DE2912462 1979-03-29
DE2949895 1979-12-12
DE19792949895 DE2949895C2 (de) 1979-12-12 1979-12-12 Schaltanlagenklemme

Publications (2)

Publication Number Publication Date
EP0017024A1 true EP0017024A1 (fr) 1980-10-15
EP0017024B1 EP0017024B1 (fr) 1983-02-16

Family

ID=25778459

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800101247 Expired EP0017024B1 (fr) 1979-03-29 1980-03-12 Borne de connexion

Country Status (2)

Country Link
EP (1) EP0017024B1 (fr)
DK (1) DK149357C (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0643442A1 (fr) * 1993-09-13 1995-03-15 Societe Nouvelle Des Etablissements Dervaux, S.A. Dispositif de raccordement de conducteurs électriques pour poste de dérivation ou de transformation
WO1998048482A1 (fr) * 1997-04-21 1998-10-29 The Whitaker Corporation Pince de raccordement electrique
CN103390804A (zh) * 2013-07-24 2013-11-13 江苏科耐特高压电缆附件有限公司 一种电缆导电线芯压块

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE663631C (de) * 1936-07-22 1938-08-10 Aeg Abzweigklemme mit zwei die Hauptleitung umfassenden U-Buegeln
DE715977C (de) * 1935-06-09 1942-01-10 Schiffmann Gmbh Alois Backenabzweigklemme
DE1946244A1 (de) * 1969-09-12 1971-03-18 Raymond A Fa Klemmhalterung
US3845603A (en) * 1972-03-30 1974-11-05 A Eckel Batten assembly to hold enclosure sheets
US4083523A (en) * 1976-05-14 1978-04-11 Fisher John L Fastening device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE715977C (de) * 1935-06-09 1942-01-10 Schiffmann Gmbh Alois Backenabzweigklemme
DE663631C (de) * 1936-07-22 1938-08-10 Aeg Abzweigklemme mit zwei die Hauptleitung umfassenden U-Buegeln
DE1946244A1 (de) * 1969-09-12 1971-03-18 Raymond A Fa Klemmhalterung
US3845603A (en) * 1972-03-30 1974-11-05 A Eckel Batten assembly to hold enclosure sheets
US4083523A (en) * 1976-05-14 1978-04-11 Fisher John L Fastening device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0643442A1 (fr) * 1993-09-13 1995-03-15 Societe Nouvelle Des Etablissements Dervaux, S.A. Dispositif de raccordement de conducteurs électriques pour poste de dérivation ou de transformation
FR2710201A1 (fr) * 1993-09-13 1995-03-24 Dervaux Ste Nouvelle Ets Dispositif de raccordement de conducteurs électriques pour poste de dérivation ou de transformation.
WO1998048482A1 (fr) * 1997-04-21 1998-10-29 The Whitaker Corporation Pince de raccordement electrique
CN103390804A (zh) * 2013-07-24 2013-11-13 江苏科耐特高压电缆附件有限公司 一种电缆导电线芯压块

Also Published As

Publication number Publication date
EP0017024B1 (fr) 1983-02-16
DK149357B (da) 1986-05-12
DK149357C (da) 1986-11-03
DK131380A (da) 1980-09-30

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