CA1198508A - Distribution head for telecommunications cable, especially for dropwire cable - Google Patents
Distribution head for telecommunications cable, especially for dropwire cableInfo
- Publication number
- CA1198508A CA1198508A CA000405184A CA405184A CA1198508A CA 1198508 A CA1198508 A CA 1198508A CA 000405184 A CA000405184 A CA 000405184A CA 405184 A CA405184 A CA 405184A CA 1198508 A CA1198508 A CA 1198508A
- Authority
- CA
- Canada
- Prior art keywords
- housing
- dropwire
- cable
- cables
- terminal
- 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.)
- Expired
Links
- 238000009826 distribution Methods 0.000 title claims abstract description 18
- 238000009413 insulation Methods 0.000 claims abstract description 7
- 238000007514 turning Methods 0.000 claims abstract description 3
- 230000000717 retained effect Effects 0.000 claims 1
- 239000004020 conductor Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 239000000945 filler Substances 0.000 description 2
- 238000004382 potting Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/02—Cable terminations
- H02G15/06—Cable terminating boxes, frames or other structures
- H02G15/076—Cable terminating boxes, frames or other structures for multi-conductor cables
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/02—Cable terminations
- H02G15/06—Cable terminating boxes, frames or other structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cable Accessories (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Connection Or Junction Boxes (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A distribution head for telecommunication cables has solderless, non-screwed and non-stripping terminal strips provided in separate termination spaces within a housing for connection to a feeder cable and to dropwire cables.
The housing is designed so that the feeder cable may be inserted into the top or the bottom of the housing by turn-ing the housing through 180°. One of the terminal strips is provided, for connection to the dropwire cables, with terminal elements formed with slots having a stepped configu-ration for severing insulation on the dropwire cables.
A distribution head for telecommunication cables has solderless, non-screwed and non-stripping terminal strips provided in separate termination spaces within a housing for connection to a feeder cable and to dropwire cables.
The housing is designed so that the feeder cable may be inserted into the top or the bottom of the housing by turn-ing the housing through 180°. One of the terminal strips is provided, for connection to the dropwire cables, with terminal elements formed with slots having a stepped configu-ration for severing insulation on the dropwire cables.
Description
3t~
The inven-tion relates to a wea-therproof distribu-tion head for telecommunications cables and incorporating overvoltage protection.
The applicant has developed a termination method for the solderless, non-screwed and non-stripping (lot-, schraub- und abisolierfrei = LSA) termination of insulated wires -to terminal elemen-ts, which method has in the meantime become widely accepted in the relevant field and is known as the LSA -termina-tion method.
From the German Patent Specification 2,610,4~1 (owned by Krone~ a terminal element is known in which the con-ductor is terminated between two arms of a ]eaf spring, which leaf spring is offset by 45 from the conductor axis.
In the inserted condition of the conductor the -two arms of the leaf spring are deflected out of their initial plane relative to each other so tha~ they sever the conductor insulation at offset locations and contact the conductor at respective ones of the diagonally opposite inner edges of the two arms.
In the known distribution heads for dropwire cables the cable wires and -the dropwire cables have to be either soldered thereto or fixed to screw-type terminals.
In testing operations performed with the cables, the screw-type terminals have to be loosened and the con-ductors have to be removed, which i.s a tedious process.
It is the object of the present invention -to miti-gate the above-described drawbacks and to develop a distribu-tion head for dropwire cables, which cables have a conducting and a supporting function and a large conductor size, in which distribution head the well~proven LSA method may be applied.
According to the present invention, there is pro-vided a distribution head for telecommunication cables, comprising, a housing, solderless, non-screwed and non-stripping terminal strips provided in separate terminationspaces within the housing for connection to a feeder cable and to dropwire cables, the housing being designed so that ''~
, ,, 5~
The inven-tion relates to a wea-therproof distribu-tion head for telecommunications cables and incorporating overvoltage protection.
The applicant has developed a termination method for the solderless, non-screwed and non-stripping (lot-, schraub- und abisolierfrei = LSA) termination of insulated wires -to terminal elemen-ts, which method has in the meantime become widely accepted in the relevant field and is known as the LSA -termina-tion method.
From the German Patent Specification 2,610,4~1 (owned by Krone~ a terminal element is known in which the con-ductor is terminated between two arms of a ]eaf spring, which leaf spring is offset by 45 from the conductor axis.
In the inserted condition of the conductor the -two arms of the leaf spring are deflected out of their initial plane relative to each other so tha~ they sever the conductor insulation at offset locations and contact the conductor at respective ones of the diagonally opposite inner edges of the two arms.
In the known distribution heads for dropwire cables the cable wires and -the dropwire cables have to be either soldered thereto or fixed to screw-type terminals.
In testing operations performed with the cables, the screw-type terminals have to be loosened and the con-ductors have to be removed, which i.s a tedious process.
It is the object of the present invention -to miti-gate the above-described drawbacks and to develop a distribu-tion head for dropwire cables, which cables have a conducting and a supporting function and a large conductor size, in which distribution head the well~proven LSA method may be applied.
According to the present invention, there is pro-vided a distribution head for telecommunication cables, comprising, a housing, solderless, non-screwed and non-stripping terminal strips provided in separate terminationspaces within the housing for connection to a feeder cable and to dropwire cables, the housing being designed so that ''~
, ,, 5~
- 2 --the fe~der cable may be inserted into the top or the bottom of the housing by -turning the housing -through 180~, one of the terminal strips being provided, for connection to the dropwire cables, with terminal elemen-ts Eormed with slots having a stepped configuration for severing insulation on the dropwire cables.
The structure in accordance with the present inven-tion achieves the following substantial advan-tages.
1. Both the feeder cable and the dropwire cable ln may be connected without having to be stripped of their insulation.
2. The cable termination space may be potted~
The structure in accordance with the present inven-tion achieves the following substantial advan-tages.
1. Both the feeder cable and the dropwire cable ln may be connected without having to be stripped of their insulation.
2. The cable termination space may be potted~
3. The dis-tribution head may be loaded with com-mercially available arrester magazines.
4. A separating point permits separation of the incoming and the outgoing wires without requiring disengage-ment of the wires.
5. The feeder cable may be inserted both from the -top and from the bottom, while the lower outlets of the dropwire cables are not affected thereby.
An embodiment of the invention will be described in detail with reference to the accompanying drawing, in which:
Figure 1 is a composite view of a distribution head, wherein the right-hand portion is a front view and the left-hand portion is a rear view;
Figure 2 is a side view of the distribution head including the two cable termination spaces, in which the feeder cable is supplied from the top, Figure 3 is a broken away view of parts of an LSA-terminal element embodying the invention;
Figure 3a is a broken-away top ~iew of the parts shown in Figure 3; and Figure 3b is a view in section along the li.ne A-A of Figure 3a.
The right-hand portion of Figure 1 shows a drop-wire terminal strip 6 disposed in a forward -termination 5~
space 5 and including terminals 9, shown in E'igure 3, Eor connec-ting dropwire cables 3.
After the terminal elements 9 have been loaded, the dropwire terminal strip 6 is latched onto the front 12 of a housing 15 (Figure 2) by means of latching members 13.
Slots ~ of the texminal elemen-ts 9, which are provided in the dropwire terminal strip 6 and are shown in Figures 3, 3~ and 3b, are of st0pped configuration; this enables the severing of very hard and thick insulations of the dropwire cables 3 with little force.
In this connection Figures 3, 3a and 3b show that the dropwire cahles 3 to be terminated, though of approximate~
ly equal conductor sizet have insulations of different thick-nesses for different applications. By means of the down~wardly extending guide ribs 22 thin cables 3a are guided into a narrow end portion of the respective guide slots and are secured against vibration. The thick cables 3b, which are disposed above the narrow end portLon of the slots, are also secured against vibration.
An arrester magazine 14 (Figure 2) may be plugged on in a known manner in the middle of this dropwire terminal strip 6.
As shown in Figure 1~ the left-hand and the right-hand terminal elements 9a, 9b of the terminal strip 6 are not disposed opposite to each other; they are disposed in an offset manner. In this way it is possible~ in spite of the larger size of the terminal elements, -to use com-mercially available arresters from the LSA programme.
The left-hand side of Figure 1 shows the rear cable termination space 4 of the distribution head l.
The drawing shows the known terminal elements lO or the feeder cable 2.
The terminal s-trip 7 is integrally formed with the housing 15 in the cable terrnina-tion space 4.
The required slots for the contact lugs are closed by so-called spray skins (not shown) which seal the -terminal 5~
\
elements 10 within the housing.
Due to an advantageous inclined positionlng of the cable feed arrangement it is possible -to dispose the terminal elements lOa, lOb vertically and, respectively, in parallel to the longitudinal axis of the distribution head 1 so that a considerable simplification of the terminal elements 10 is o~tained although the well-proven inclined positioning of -the same rela~ive to ~he conductor a~is need not be relinquished.
Figure 2 shows the individual components of -the distribution head 1, which is consti-tuted by a hood 11, the housing 15, a rear wall 17, ~ bottom pla-te 16 and a sealing member 23.
The housing 15 including the cable connecting piece 18 is of symmetrical construction so that the bottom plate 16 with the outgoing dropwire cable ou-tlets may be assembled on either end face of the housing, so that the feeder cable 2 may be fed from the top and the dropwire cables 3 from below or both the feeder cable 2 and the dropwire cables may be fed from below.
It is possible to cover the rear cable termination space 4 by means of the sealing member 23. This sealing member 23, which may be buttoned onto the housingr comprises two asymmetrical filler openings, which may be cut away~
for the potting of the terminal space 4~
In dependence on the mounting oE the sealing mem-ber - i.e~, whether the filler openings are at the top or at the bottom - it is possible to perform either complete or only partial potting (only the area of the cable connect ing piece).
The sealing member 23 i-tself prevents the ingress of moisture in-to the cable termination space.
The connecting means for the cable sheath 19 in the cable termination space 4 is electrically connected to the earth terminals 20 and to the take-off lugs 21 of the terminal strip 6.
~`
35~S~
When the cable wires 2 have been applied~ the distrlbution head 1 is screwed to the rear wall 17~ which is already mounted on the pole or wall, or the housing 15 and the rear wall 17, after having been assembled, are both of them mounted on the pole or -the wall.
When the hood 11 has been pushed on, the distribu-tion head 1 is protec-ted from rain water hy known construc-tional measures, such as drain-oEf slopes and deflector ribs, so that the parts within cannot beldamaged.
.~
An embodiment of the invention will be described in detail with reference to the accompanying drawing, in which:
Figure 1 is a composite view of a distribution head, wherein the right-hand portion is a front view and the left-hand portion is a rear view;
Figure 2 is a side view of the distribution head including the two cable termination spaces, in which the feeder cable is supplied from the top, Figure 3 is a broken away view of parts of an LSA-terminal element embodying the invention;
Figure 3a is a broken-away top ~iew of the parts shown in Figure 3; and Figure 3b is a view in section along the li.ne A-A of Figure 3a.
The right-hand portion of Figure 1 shows a drop-wire terminal strip 6 disposed in a forward -termination 5~
space 5 and including terminals 9, shown in E'igure 3, Eor connec-ting dropwire cables 3.
After the terminal elements 9 have been loaded, the dropwire terminal strip 6 is latched onto the front 12 of a housing 15 (Figure 2) by means of latching members 13.
Slots ~ of the texminal elemen-ts 9, which are provided in the dropwire terminal strip 6 and are shown in Figures 3, 3~ and 3b, are of st0pped configuration; this enables the severing of very hard and thick insulations of the dropwire cables 3 with little force.
In this connection Figures 3, 3a and 3b show that the dropwire cahles 3 to be terminated, though of approximate~
ly equal conductor sizet have insulations of different thick-nesses for different applications. By means of the down~wardly extending guide ribs 22 thin cables 3a are guided into a narrow end portion of the respective guide slots and are secured against vibration. The thick cables 3b, which are disposed above the narrow end portLon of the slots, are also secured against vibration.
An arrester magazine 14 (Figure 2) may be plugged on in a known manner in the middle of this dropwire terminal strip 6.
As shown in Figure 1~ the left-hand and the right-hand terminal elements 9a, 9b of the terminal strip 6 are not disposed opposite to each other; they are disposed in an offset manner. In this way it is possible~ in spite of the larger size of the terminal elements, -to use com-mercially available arresters from the LSA programme.
The left-hand side of Figure 1 shows the rear cable termination space 4 of the distribution head l.
The drawing shows the known terminal elements lO or the feeder cable 2.
The terminal s-trip 7 is integrally formed with the housing 15 in the cable terrnina-tion space 4.
The required slots for the contact lugs are closed by so-called spray skins (not shown) which seal the -terminal 5~
\
elements 10 within the housing.
Due to an advantageous inclined positionlng of the cable feed arrangement it is possible -to dispose the terminal elements lOa, lOb vertically and, respectively, in parallel to the longitudinal axis of the distribution head 1 so that a considerable simplification of the terminal elements 10 is o~tained although the well-proven inclined positioning of -the same rela~ive to ~he conductor a~is need not be relinquished.
Figure 2 shows the individual components of -the distribution head 1, which is consti-tuted by a hood 11, the housing 15, a rear wall 17, ~ bottom pla-te 16 and a sealing member 23.
The housing 15 including the cable connecting piece 18 is of symmetrical construction so that the bottom plate 16 with the outgoing dropwire cable ou-tlets may be assembled on either end face of the housing, so that the feeder cable 2 may be fed from the top and the dropwire cables 3 from below or both the feeder cable 2 and the dropwire cables may be fed from below.
It is possible to cover the rear cable termination space 4 by means of the sealing member 23. This sealing member 23, which may be buttoned onto the housingr comprises two asymmetrical filler openings, which may be cut away~
for the potting of the terminal space 4~
In dependence on the mounting oE the sealing mem-ber - i.e~, whether the filler openings are at the top or at the bottom - it is possible to perform either complete or only partial potting (only the area of the cable connect ing piece).
The sealing member 23 i-tself prevents the ingress of moisture in-to the cable termination space.
The connecting means for the cable sheath 19 in the cable termination space 4 is electrically connected to the earth terminals 20 and to the take-off lugs 21 of the terminal strip 6.
~`
35~S~
When the cable wires 2 have been applied~ the distrlbution head 1 is screwed to the rear wall 17~ which is already mounted on the pole or wall, or the housing 15 and the rear wall 17, after having been assembled, are both of them mounted on the pole or -the wall.
When the hood 11 has been pushed on, the distribu-tion head 1 is protec-ted from rain water hy known construc-tional measures, such as drain-oEf slopes and deflector ribs, so that the parts within cannot beldamaged.
.~
Claims (4)
1. A distribution head for telecommunication cables, comprising:
a housing;
solderless, non-screwed and non-stripping terminal strips provided in separate termination spaces within said housing for connection to a feeder cable and to dropwire cables, said housing being designed so that said feeder cable may be inserted in-to the top or the bottom of said housing by turning said housing through 180°, one of said terminal strips being provided, for connection to said dropwire cables, with terminal elements formed with slots having a stepped configuration for severing insulation on said dropwire cables.
a housing;
solderless, non-screwed and non-stripping terminal strips provided in separate termination spaces within said housing for connection to a feeder cable and to dropwire cables, said housing being designed so that said feeder cable may be inserted in-to the top or the bottom of said housing by turning said housing through 180°, one of said terminal strips being provided, for connection to said dropwire cables, with terminal elements formed with slots having a stepped configuration for severing insulation on said dropwire cables.
2. A distribution head as claimed in claim 1, when the other of said terminal strips is formed integrally with said housing and said one of said terminal strips is retained within its termination space by its shape.
3. A distribution head as claimed in claim 1, wherein said terminal elements of said one of said terminal strips are offset by 45° from, and those of the other of said terminal strips are parallel to, a longitudinal axis of said housing.
4. A distribution head as claimed in claim 1, 2 or 3 wherein said housing has parts, including a hood, a rear wall, a bottom plate and means for insulating said terminal strips, which are made of plastic material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8121721U DE8121721U1 (en) | 1981-07-24 | 1981-07-24 | Terminal distributors for telecommunication cables, especially for outdoor cables (dropwire cables) |
| DEG8121721.8 | 1981-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1198508A true CA1198508A (en) | 1985-12-24 |
Family
ID=6729730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000405184A Expired CA1198508A (en) | 1981-07-24 | 1982-06-15 | Distribution head for telecommunications cable, especially for dropwire cable |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP0071737B1 (en) |
| JP (1) | JPS5826516A (en) |
| KR (1) | KR860001097B1 (en) |
| AR (1) | AR229424A1 (en) |
| AT (1) | ATE15846T1 (en) |
| CA (1) | CA1198508A (en) |
| DE (1) | DE8121721U1 (en) |
| IN (1) | IN163222B (en) |
| MY (1) | MY8700264A (en) |
| SG (1) | SG90886G (en) |
| ZA (1) | ZA824447B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT388471B (en) * | 1986-10-24 | 1989-06-26 | Ulbricht Hein Wwe Gmbh | Termination for multicore telephone cables |
| EP0570994A3 (en) * | 1986-12-03 | 1995-09-13 | Krone Ag | Apparatus for the connection of cable cores to cutting and clamping contacts of drop wire connection blocks for the telecommunications |
| ES2054698T3 (en) * | 1986-12-03 | 1994-08-16 | Krone Ag | DEVICE FOR THE CONNECTION OF CABLE CONDUCTORS IN THE CUT-TERMINAL CONTACTS OF THE TERMINAL TERMINALS OF THE "DROPWIRE" TYPE, OF THE TELECOMMUNICATION TECHNIQUE. |
| DE4138127C2 (en) * | 1991-11-19 | 1996-07-11 | Stewing Nachrichtentechnik | Device for connecting and branching installation cables, in particular end distributors, junction boxes or distribution boxes for telecommunication cables |
| KR102514273B1 (en) * | 2022-06-21 | 2023-03-27 | 백우열 | On-site silica sol manufacturing device using chemical pump, medium-pressure jet grout jetting device for spraying silica sol and cement milk manufactured by this device, and ground improvement method using the same |
| KR102514277B1 (en) * | 2022-06-21 | 2023-03-27 | 백우열 | Silica sol on-site manufacturing device using chemical pump, low-pressure grouting tip injection device for spraying silica sol and cement milk manufactured by this device, and ground pressure injection improvement method using the same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1069451A (en) * | 1953-01-06 | 1954-07-08 | Krone Kg | Terminal device for telecommunication conductors |
| DE1109236B (en) * | 1958-04-05 | 1961-06-22 | Krone Kg | Cable termination for multi-core cables |
| DE2254318C3 (en) * | 1972-11-06 | 1975-04-30 | Brown, Boveri & Cie Ag, 6800 Mannheim | Clamp contact |
| FR2440636A1 (en) * | 1978-10-31 | 1980-05-30 | Nozick Jacques | Cable connection block for telephone exchange cable distribution - has plug in modules holding protection devices e.g. lightning arresters which are positively gripped by spring leap contacts |
-
1981
- 1981-07-24 DE DE8121721U patent/DE8121721U1/en not_active Expired
-
1982
- 1982-06-15 CA CA000405184A patent/CA1198508A/en not_active Expired
- 1982-06-23 ZA ZA824447A patent/ZA824447B/en unknown
- 1982-06-25 AT AT82105644T patent/ATE15846T1/en not_active IP Right Cessation
- 1982-06-25 EP EP82105644A patent/EP0071737B1/en not_active Expired
- 1982-07-19 KR KR8203202A patent/KR860001097B1/en active
- 1982-07-20 AR AR290021A patent/AR229424A1/en active
- 1982-07-23 JP JP57127823A patent/JPS5826516A/en active Granted
-
1984
- 1984-04-11 IN IN237/CAL/84A patent/IN163222B/en unknown
-
1986
- 1986-11-15 SG SG908/86A patent/SG90886G/en unknown
-
1987
- 1987-12-30 MY MY264/87A patent/MY8700264A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IN163222B (en) | 1988-08-27 |
| DE8121721U1 (en) | 1981-11-26 |
| JPS5826516A (en) | 1983-02-17 |
| MY8700264A (en) | 1987-12-31 |
| EP0071737A1 (en) | 1983-02-16 |
| JPH049005B2 (en) | 1992-02-18 |
| EP0071737B1 (en) | 1985-09-25 |
| ZA824447B (en) | 1983-04-27 |
| SG90886G (en) | 1988-09-30 |
| ATE15846T1 (en) | 1985-10-15 |
| AR229424A1 (en) | 1983-08-15 |
| KR860001097B1 (en) | 1986-08-07 |
| KR840000997A (en) | 1984-03-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |