DE1665671C3 - Process for the production of an insulating body for insulating the connection point of a busbar and a branching conductor - Google Patents

Description

^ Ehfverfahren of the type mentioned above is on - ~ 'emerged 385 699 as be -... Isolierii described there enveloping the connection point of a conductor branching off a busbar Pieces of pipe that meet in a T-shape The insulating tube surrounding the branching conductor and the side of the die facing it Busbar surrounding insulating tube are in a plane running in the longitudinal axis of the busbar and the branch conductor ·· ■ - ■ - "-'- one at a time

von ξ ^ g ^^ S Sander gungSllche schüeßl ^ -J , d -bd d ^ fish z. B. be riveted. The jerk of the sammd

rail oiler umhul ^^ S ^^^ S-parts, but the isoheric body is there around a man

tellmie aufklappDar _to nt CUSA -patent-

Also known as insulating bodies script 2 927 955), which is the connection point of a High-voltage feedthrough and a little "^ across" to it

running ^ ^u ^ ^around P ^ht _wi ^ J ^^ T _r Insulator is in the Pnnap like the one according to de ^ British patent 385 699 ^, but there are no flanges but the edges point to the slots ^^^ J ^ education elements and to that

so that the ^ "" ^^^, ^^^^ _{ee can} be snapped into one another and

closed insulator ^bl if ^en ·. .

However, it cannot be deduced from the aforementioned thicknesses how such insulating bodies can be produced. ..... """," *. _o ; _n

The invention is based on the object of specifying a method for the production of ^ '' f ^ " ^1d ^ initially mentioned type, since it requires little effort in terms of tools ^ d Isol.erkoper provides, which hardly require any reworking.

The invention relates to a method ir the production of an _{approximately shaped insulating body which surrounds the connection point of an iso irt} en busbar and an insulated conductor branching perpendicularly therefrom, which consists of a flexible material and for attachment to the connection point with the opening of a flanges of the insulating body lying on top of one another The joint can be opened and is tightly _{sealed by fastening means engaging in the flange}

rail and the branching conductor in the area of the connection point simulated immersion core in the heated State immersed in a liquid thermoplastic material containing a plasticizer, whereupon the plastic is cured in a drying oven and by cutting open each flange becomes the opening of the insulating body Fugue and the! "!" 'Body of the Diving core removed. This procedure allows

with relatively little ^Au % ^a » ^d _h . ^d ^ _n ^H ^ ling of insulating bodies which are well adapted to the connection point of the conductors and which fit tightly against the wires. This is also due to the fact that the plastics used for the immersion process result in pliable bodies.

for general purposes already known, objects by immersing molded tubes to be produced in plastic dispersions iSstof-Taichenbuch «, Carl Hanser Verlag, See 1954, pp. 58/59). A suggestion for An-Srog such methods in the field of Sam ScSen isolation and for the special design of Stars W cannot be gained from this.

never a device to carry out the procedure «O5SSn diving core, which is in advantageous Aus-SUg the invention have one of the busbar simulated portion and an axially running, protruding, the formation of the Flan-S ends web with threaded holes and therein n screws as well as emen the branching suiter can carry simulated approach. The insulators can granulate with the help of this immersion core so ^ are produced that the for attaching the Insulating body at the connection point required fasteners without additional work steps.

"SÄ the device for the manufacture of the

! soüerkörpers be designed so that the approach

the protruding footbridge on the perimeter of the

rail corresponding section of the core

e is arranged overlying. This insulating body

fann pushed over the branching conductor and

on the opposite of the branching conductor

Side to be fixed by screws. on the other hand

the plunger core can be designed in such a way that the

S by a corresponding, between the rows

thickening of the sternum arranged

e it is formed This means that fastening flanges are

Fche formed, which in the direction of the branch conductor verder the branching conductor I are «j» JJjJjJ ¹¹ W 3 'or 4 made of a suitable material, e.g. H. paper, provided,

assigns ^ y the and, *

_d8 the

Busbar with the

from the insulator-5

a den AjBa ^

Busbar adapted

That tubular? Part 6 carries
between them a fugue 10

Fugue 10 extends -J «u * d« g

Part 6 so that ^ Jf ** "*? \

to be opened.WwJFig.

Attachment of the insulator 5

«Gen? ^ '^^^ fS

Isoheric. To A ™ "™ ⁰ *

Approach? with continuous «^^

Approach 8 with Gewmdflochem 12 ωL ^d _f ^ _rSchrau .

15 provided. The heads are used as a support Ben 23, the surfaces 13 are used for the brneoung

A> gteT. ^ _fi ^ _{Insulating body} s5 is in

dem ^^^ ngsbeis ^ achF ^ £> * ™ & slanted around a tight fit oe ^

, 5 persS on the _f ^Is ° ^hem ° f ° ³ _de ^ bevels 20

serve to _uerun .

the

The invention is described below with reference to the exemplary embodiments shown in the figures.

dgt in a three-dimensional view an Is ₀ -Äer, bS which the sleeve and the lugs are arranged opposite one another; Fi ₈ 2 -shows a radial section through the iso-

is in F.

* Part, s.cMbar g ^ ht _areal

Approaches 7 and 8 oeiuiae _{cut ne part touch, like de J g. ^ UEgescfc ^

of approaches recognize ate ^ ° ^ ™ Margins of the approaches 7 and 8 with ^^^ £

hch the ^section 8 ^un f4 ⁿ ^ ^d _n ^ ™ ^h ^ r the seal to be provided to ensure a particularly good u β

Fugpl ^ gfg ^ _{η and 8} opposite

Side of the Isos body S ^^ fJ ^ Z ^ Z end of tapered socket 21,
Head 2 is passed.
The insulator after

is, the ab-

is another

presented

Of the

Ld in Fig. 5 the sections BC and DL after F1 g ⁰ WW

WsW a device for the production of the gjooljn. Isoüerkörpers according to F i g. 1. A screw belonging to the device and 1 of the screw is shown in Fig. 7 to a larger extent- ₅₅ ^^ branching off

% ^ zS \ e device for lifting the Insulating body according to Fig. 3

be together

Z Insulator S can now

23 is the tubular hair dryer part 6 with

the branching conductor 2 can suitably V ^ ndugeile the r ^ _{s conductor 2 with}

electrically connected to one another se.n For example, Sammdschieoe ^ n A _ß dem ^ _provided

The sections of the busbar can be flat 6 ₅ ^a « ^d ^^ _A Snuig3beispiel an Isolierkör-UUerstücke, the Äit each other and mn the other sa us lun ^ & £ K ^^ ^ _{n Ab} .

^^^^^^^^ S ^ _d EtA a tubular busbar

with insulation 3 and 3 'and a branching line F i g. 7 shows that the screws 53 have a cylindrical

ter2 with an insulation 4 available. For insulating see shaft 56 and an adjoining device

tion of the connection point is used to wind the insulating body 57 with a slightly smaller outer diameter

30, which, similar to FIG. 1, has a tubular part. When inserting the screw 53 acts

31 has The part 31 carries the protruding 5 lower edge of the cylindrical part 56 as a stop, sets 32 and 33 which form the sleeve 34 after so that the screw 53 is on either side of the web are expanded at the top and bottom and between them the 51 protrudes by approximately the same lengths.

Include joint 41. The joint 42 extends on the opposite side of the web 51

also through the tubular part 31 and enables core 50, a cuboid projection 55 is attached.

therefore a bending of the insulating body 30. io brings. ,. ". * .., t ··« ·

The approach 32 is provided with through holes 35. The device according to Figure 6 is useful

provided by the elevations 36 with the surface made of metal. The core 50,

Positioning surfaces 37 for the heads of the screws 40 behind the web 51 and the projection 55 are initially separate

carry out. The lower extension 33 contains parts made by welding, soldering or other-

Extensions 38 in FIG. 3 threaded holes, not shown, can be connected to one another in a suitable manner.

_c jj _er The core 50 can be formed by a piece of pipe,

The insulation 4 of the branching conductor 2 goes on its end faces through inserted floors

in a thickening 22 fiber, which is closed to the inner dimensions of the.

Sleeve 34 is a device used to manufacture the in

The insulating body 30 according to FIG. 3 can, similarly to »0 Fig.3 serves the insulating body is shown in Fig.8

like the insulating body according to FIG. 1 shown with bevel. This device also consists of

gene be provided in order to have a tight fit on one of the busbar 1 simulated core 50

Insulations 3 and 3 'of the busbar with a web 51. In contrast to FIG

to lead. the web 51 a cuboid thickening 65. To

If to connect the two sections of the two sides of the thickening 65, the web 51 contains Busbar 1 and the branching conductor 2 loading threaded holes 52 with inserted screws 53.

Fastening elements are used, which is on the Further, the web 51 at its edges on the

The diameter of the insulation 3 and 3 'protrude, the top and bottom with bevels 66

so it is useful to see an insulating body after.

F i g. 4 and 5 to be used. This differs from the devices according to FIGS. 6 and 8 are of the in Fi g. 3 insulator shown attached by a flat rods 58, which are used for easier hand bead-like extension 41 of the tubular part habung of the devices. The bars 58 are

31, which is suitable for accommodating the fastening elements in an angled position at the end 4 and 5 of the extension 55 (Fig. 6) or the thickening 65 creates the necessary space show that the sleeve34 is attached with an extension 43 35 (Fig.8). The purpose of the angled is provided, which is also used to accommodate fastening attachment will be explained below, serving elements. To produce the insulating body according to FIGS. 4th

In Fig. 5 it is also shown that the lugs 32 and and S can serve a device which has a similar

33 with inwardly facing bevels 44 and a structure like that in FIG. 8 device shown

45 can be provided in order to have a tight seal 40 but with additional, the extensions

of approaches to achieve. 41 and 43 provided corresponding thickenings

Furthermore, Figures 4 and 5 show that the approaches.

32 and 33 not as in the previously described embodiments of the insulating body go out, but asymmetrically 45 a liquid plastic of the aforementioned are arranged. Kind of immersed. This causes the artificial rod to gel over

To assemble an insulating body according to FIGS. 3 the device around in a contiguous

or 4 and 5, the procedure is such that the layer has a thickness which, inter alia, depends on that in

first the two Asct 1 and 1 'of the collecting of the device and the stored amount of heat

rail and the aegde ladder 2 depends on each other 50 dive duration

get connected. The plastic is then stored during the immersion process

body in the upturned state via the connection also to the web 51 (Figs. 6 and 8) with the

can be pushed. By inserting screws 53 set. This forms around the

and tightening the insulating material screws, the downwardly protruding threaded part of the screw lies down

Insulating body firmly do the insulations 3 and 3 'and 55 an extension corresponding to the e.g.

the fouling 22 of the insulation 4 of the abzwegenden th appendages 15. On the upper part of the screw

Conductor2. ben the plastic fills between the web 51 In the following, the devices and the and the plate-shaped screw heads 54 beftodli- Process explained, with the hooves of the insulating body chen space. In this way, at the same time

can be produced. 60 tig the in F i g. 1 through holes 11 shown

One for producing the insulating body according to and the threaded holes 12 and the elevations 14 FIG. 1 a suitable device is shown in FIG.

represents. The device consists of one of the Sam- After reaching a desired layer thickness

Melschiene 1 simulated core 50, which at its of the plastic is the device from the

End faces bevels 60 and end faces 61 6s removed plastic construction and attached to the holding rods

owns. The core 50 has a tapering towards the front to allow the excess plastic to drip off.

th web 51 with threaded holes 52, hung in the screws. Due to the angled attachment of the

53 with plate-shaped heads 54 are used. Holding rods 58 on the devices take these

in a position in which the plastic drips off ■ take place in one edge of the device ^. G Irregulants associated with dripping, gKei of the surface is created in such places of the plastic layer, which in the other Arte sga " gen are removed. After dripping off, Device with the art attached to it , I shift into the drying oven and speak up to cure the plastic J e he loaded goes into a solid state, but remains flexible and thermoplastic. Device

To remove the insulator from the front tion is the removal of the plastic on several Places required. The required will be measured in the following on the basis of F i g. 6 considered. After c over the plate-shaped heads material can be rotated the bc. Then < the joint 10 formed by the narrow side of the 51 material. Further Plastic also on both ends of the along the surfaces 61 and on the free one Approach 55 removed so that the Isolierkor folds and the device can be removed.

The operations described can also be carried out in the device according to FIG. 8 executed will. In this device, however, it is sufficient to only use the plastic on one of the two end faces of the core 50 to remove. In this way, insulating bodies are obtained that are closed on one side and are therefore suitable as insulation for branches at the end of a busbar.

As can be seen from the description of the devices and the manufacturing process of the insulating bodies, the inner circumference of the tubular part of the finished insulating body corresponds to the circumference of the Core of the device minus the thickness of the web 51 (z. B. Fig. 6). So that the insulator fits properly on the insulations 3 and 3 '(Fig. 1 is achieved, it is recommended that the diameter of the core (e.g. 50; Fig. 6) to be enlarged accordingly.

The exemplary embodiments of the invention are above in connection with the use j a hollow cylindrical busbar and a branching off Conductor with a rectangular cross-section has been described. The insulating bodies described and the devices used for their production can, however, also be carried out by simple measures as other cross-sectional shapes of the busbar and of the branching conductor.

For this purpose 2 sheets of drawings

409 683/77

Claims (1)

I 665 Patent claims: _J. x, u I. A method for producing a connection Connection point of an insulated busbar and an insulated conductor branching perpendicularly from it, surrounding an approximately T-shaped insulating body, which consists of a flexible material and can be opened for attachment to the connection point by opening a joint located between the flanges of the insulating body and which is held tightly at the connection point by fastening means engaging in the flange, characterized in that em of the t _S busbar (1, 10 and the branching conductor (2) in the area of the connection point simulated plunger core (SO, S1, 55) in the mentioned state in liquid, a plasticizer-containing thermoplastic material "is immersed, whereupon the plastic is hardened in a drying oven, and that the opening of the IsoUerkörpers (5) allowing the opening of the IsoUerkörpers (5) and deTJsoiierkörper from the immersion core from-> 5 ⁸ ΤνΓ _ε ^ η fzufD ^ chLrung of the method according to claim 1, characterized in that the core has an A'-section (50) simulating the busbar (1, 1 ') and an axially extending, protruding, the formation of the flanges (7 , 8) serving Su, (51) with threaded holes 52) and therein singes-etched screws (53) as well as a shoulder (55) simulating the branching conductor (2) carries (Fig. 1,6). 3. Device according to claim 2, characterized in that that the approach (55) the protruding web (51) on the circumference of the busbar corresponding section (50) of the core is arranged opposite one another (FIG. 6). 4. Device for performing the method according to claim 2 for an insulating body, its part enveloping the branching conductor in a through or parallel to the longitudinal axis the busbar running level two opposite joints between each one Has a pair of fastening flanges extending in the direction of the branch conductor, characterized in that that the approach (65) through a corresponding, symmetrical between the rows of threaded holes (52) arranged thickening of the web (51) is formed. Bend is held at the junction. Insulating bodies of this type are preferably used in electric-SS switchgear whose busbars «St tSffOgw are made of insulating materials. While the insulating materials, for example hard paper or materials such as polyester resins, are based on just u «j & wiM« v, _{λ u} ^ _collect i _sc jjjenen and the following, relatively simple, an additional effort is necessary to also the branch points with their connecting elements between the busbars and the branching conductors