Screened communication cable terminator for structured cable networks

FIELD: subsurface laying of screened communication cables designed for local communication networks to operate at high frequencies and as "last-mile" cables.

SUBSTANCE: proposed terminator for copper-conductor communication cables designed for use in structured cable systems of categories 5 and 5e (up to 100 MHz and higher) has sleeve-shaped plastic body with round bottom on one end and cylindrical opening on opposite end, spliced conductors of cable ends being spliced which are potted in sealing compound within cable terminator; spliced insulated copper conductors are sealed with aid of type UY-2 connectors accommodating water-repelling filler; spliced conductors are disposed inside reticular screen made in the form of reticular copper sleeve reliably electrically connected to screens of cable ends being spliced in structured cable networks by winding sub-screen tinned copper wires of cable on sleeve and potting core splice of cable screened with reticular copper sleeve in terminator by cold-hardened polyurethane sealing compound VILAD-13.

EFFECT: enlarged functional capabilities of terminator.

1 cl, 6 dwg

 

The invention relates to the installation of underground strip shielded communication cables with copper conductors, intended for use on local networks, which are used in structured cabling systems "5" and "5e" categories (up to 100 MHz and above), i.e. operating at high frequencies, as well as cables "last mile".

Known for stub coupling symmetric odnokletochnykh of intercity cables type RCP (1), odnokletochnykh cables rural communication type XP (XPS) (2)operating in the frequency range up to 300 kHz.

Structurally stub coupling (1; 2;) are taconicartemis plastic body having a rounded bottom with one hand and open cylindrical hole from the opposite side.

Splicing the wires of the cable in such couplings is inefficient by Stripping insulation followed by twisting and propanol stripped and twisted veins, isolating made splices lived with a plastic liner (segments PE tubes, or dead-end sleeves, capped at one end).

Intergrowth lived two cables installed in taconicartemis case and filled with preheated to a temperature of 120°With bitumen compound.

The shortcoming of known couplings (1; 2; 3) is the fact that these couplings not the tap splice lived, electrically connected to the screens of the bonded cables, and therefore, such couplings may not rasiwasia high-frequency cables, operating in the frequency range above 300 kHz, since at high frequencies significantly increase losses on electromagnetic radiation and reduced protection of the cable against electromagnetic fields. To structural defects such clutches are also made unproductive by twisting copper conductors with propanol and isolating them in plastic sleeves, and also that fill the completed splice in the clutch is pre-heated sealant based on bituminous compound.

The invention aims to expand the functionality of the coupling through the use of sealed connectors, krasivaya copper insulated conductors of cable core without prior manual Stripping of insulated cable conductors, through the use of screen mesh for rosenovo core cable using copper screen sleeve securely connected to the screens of the bonded ends of the cable SCS, and pouring cluster core cable, shielded copper mesh stocking, in a cul-coupling using polyurethane sealant WILD-13 cold-setting significantly reduces the time to fill the clutch.

Specified technically the result is achieved by the proposed dead-end coupling of the communication cable containing taconicartemis plastic body having a rounded bottom with one hand and open cylindrical hole from the opposite side, a cluster of veins of the bonded ends of the cables are filled with a sealant in the clutch housing, contains clusters of copper insulated wires made sealed connectors type "UY-2", inside the hydrophobic aggregate, and the aggregates are lived within a screen mesh made in the form of copper mesh stocking, reliably electrically connected to the screens of the bonded ends of the communication cable by winding copper screen stocking under screens tinned copper wires of the cable and fill the splice of the cable core, shielded copper mesh stocking, in a cul-coupling using polyurethane sealant WILD-13 cold-curing, securely sealing the internal space of the clutch, including penetrated through the metal mesh screen to sasenum connectors copper veins and securely zagermetizirovat the space between the conductors and connectors.

Additionally it can be noted that in the dead-end coupling to shielded cable, structured cable networks (e.g., cable EX-GITWE, manufactured in the following versions: onopordum, Doha the tion, treharne, chetyrehosnym and patiparn) for splicing lived core cable are individually sealed connectors (inside the hydrophobic filler) type "UY-2"connecting from different ends of the cable one isolated vein by cutting polyethylene insulation and incision copper conductors themselves to be the contact of the core with intergrowths lived shielded metal (copper) net stocking, one end of which is bent to the (muted), and the other end attached to the screens of the bonded cables, with metal strip of the screen (for example, alumina-PE) cable twisted so that the metal side strips (without spray polyethylene layer) is located on the outside and on the surface nadenut metal (copper) screen (stocking), electrically mesh screen connected to the cable shield by means of the winding under screens tinned copper wire under the screens of the connected cables.

Shielded splice broshennyh ends of the cables installed in the clutch housing and filled two sootvetvuyuschim polyurethane sealant WILD-13, with sealer, penetrating through the metal mesh screen, securely seals the space between the conductors and connectors lived.

The invention is illustrated by drawings, where:

figure 1 shows the General the ID of the mounted stub coupler on the cable type EX-GITWE;

figure 2 shows a General view of the buildings of the dead-end couplings (MT-45, MT-36 MT-16) under different types of cables FORMER GITWE;

figure 3 shows a General view of the connector lived type UY-2 which includes: a housing, a contact element, a hydrophobic filler cap;

figure 4 shows a pressure test connector type UY-2 on the bonded strand;

figure 5 shows the distribution of the connectors on the cables FORMER GITWE different capacities.

figure 6 shows a General view of the splice lived with mesh (copper) screen prior to installing in the case of dead-end couplings and fill it with polyurethane sealant WILD-13.

Mounted stub coupling on the high-frequency cable EX-GITWE consists of staranimolinar of the plastic housing 1, which is installed splices insulated copper conductors with polyethylene made with connectors 2 (UY-2), while clusters are lived inside screen metal mesh grip 3 which is electrically connected to the screens of the bonded ends of the cable EX-GITWE through winding under screens tinned copper wire 4, and the splices lived in a metal (copper) shielding mesh stocking filled polyurethane sootvetvuyuschim after pouring sealant 5 WILD-13.

Connector type UY-2" made in the form of the body 6 filled with a hydrophobic filler, the contact element and the cover 8.

The mounting stub coupling is as follows.

After calculations with the allowable bend radius of the bonded ends of the cables in the pit outline the place of installation of the coupling; cut at the marked place the ends of the cables. On the bonded ends of the cable EX-GITWE, pre-cut template is removed from the outer shell left on a specific length of the alumina-PE-screen cable released under screens tinned copper wire and released for a certain length of insulated conductors (previously rubbed from hydrophobic filler), is performed using connectors UY-2 intergrowths lived. When splicing lived their twist not violate the entire length of the connector. The connector mounted on the bonded conductor pairs and compresses press mites E9Y. The second bonding wires in a pair are produced in the same place. If the cable has two pairs, then the following connectors have a distance of 60 mm from the first. When a large number of pairs of connectors have uniformly at a distance of 30 mm from each other. Then make the recovery screen over intergrowths lived. For this metal (copper) mesh screen (stocking) pull on the intergrowths lived and on-screen ribbon cable, pre-twisted metal (aluminum) surface outward. Under screens max the e tinned wire push through cell screen grid and fix (wrapped) these wires display tape around the cable, the ends of the wires twisted together; screen metal mesh and pull on the end of the splice bend or compresses. Then on the screen mesh in place of the bandage them under screens tinned copper wire impose 2-3 circulation line of the screen, left over from cutting the cable, with on-screen tape is applied to the aluminum surface down. On top of the screen ribbon impose a bandage from 3-4 turns of copper wire. After that shielded splice lived installed in the clutch housing so that at the connector of the cluster did not reach bottom of 10-15 mm, and will fill pre-prepared (mixed from two components, the liquid polyurethane sealant WILD-13, which hardens after 20-30 minutes, securely sealing the coupling.

Literature used:

1. "Installation instructions symmetrical high frequency cable type gear 1×4×1,2 bituminous compounds", crid, the Leningrad, Moscow 1978 statement approved GOVTS 25.07.1978,

2. "Interim guidance on installation odnokletochnykh cables XP and HTS by casting compound", the Ministry of communications of the USSR, Moscow 1973

Stub coupler communication cable containing taconicartemis plastic body having a rounded bottom with one hand and open cylindrical hole from the opposite side, the cluster was tradeweighted cables, filled with sealant in the clutch housing, characterized in that the splices copper insulated wires made sealed connectors type "UY-2", inside the hydrophobic filler aggregates lived inside a mesh screen made in the form of copper mesh stocking, electrically connected to the screens of the bonded ends of the cable, structured cable networks by winding stocking under screens tinned copper wire cable, and pouring cluster core cable, shielded copper mesh stocking in a dead-end coupling using polyurethane sealant WILD-13 cold-curing, securely sealing the internal space of the clutch, including penetrated through the metal mesh screen to sasenum connectors copper veins, and zagermetizirovat the space between the conductors and connectors.



 

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