DE1874854U - TROUSER JOINT FOR HIGH VOLTAGE CABLES. - Google Patents

Description

RA.2 & 0 693 * 27.4.63v

DKAHT- TIND KABELWIiHKE

GmlD.H.
KOLN-RIEHL

Trouser branch joint for high voltage cables.

When adding e ^"1 ektrisc ^ he power to a larger number of busbars by cable, it is often necessary to carry out before the bus bars wired branches from the main cable. Typically be laid branches at a right angle to the main cable. However, for spatial reasons, it is in In many cases it is not possible to avoid making the branches at an angle smaller than 90 degrees to the main cable.

It becomes a trouser branch joint for high-voltage cables for operating voltages of 20 kV and more, with paper insulation or insulation made of plastics such as polyvinyl chloride, polyethylene or similar, suggested. At the same time, such a trouser branch sleeve for cables with paper insulation according to the illustration explained in the picture.

The picture shows an example of a single core cable with paper insulation. The conductor is connected to a tube (2), that has the same opening angle as the socket. The ends of the Soldering tubes (2) are for smoothing the electric field and Conical design to avoid points (torpedo soldering sleeve). The cable insulation (3) is conical in the sleeve up to the conductor Tapered shape (cracked cone). For the sake of arrangement of spacers (4) is a longer section of the conductor exposed. From the outermost metallized film on the insulation (5) (H-Pol ie) to the exposed conductor, i.e. over the entire Cone, the core is wrapped with a few layers (■ 6) of paper soaked in cast resin. After this wrapping has hardened an oil or mass leakage from the insulation is no longer possible

borrowed. The free part of the conductor (1) and the soldering tube (2) are also wrapped in cast resin paper ("O, so-called to achieve electrical "partitioning". About the so prepared Connection point is a form (8) made of plastics, such as polyethylene, polyvinyl chloride or similar, pushed, the space to be mass-cast with cast resin at the connection point encloses. After the casting resin has hardened, the plastic mold (β) is removed in the Hegel. For external shielding the cast resin club has a coating (9) made of conductive silver. For a good connection of the earth potential is above the paint a lead tape winding (10) made of conductive silver, which is reinforced at the ends by wire wraps (11). To protect against moisture, there is also an inner lead sleeve (12) with the three lead jackets (13) soldered tightly, one over the BTeimuffe cast iron protective sleeve (14) arranged.

The trouser branch sleeve shown in Bi ¹ U is only an example according to the proposal. The proposal applies in the same way to cables with plastic insulation. In the latter case, the insulation or the soldering sleeve are naturally not wrapped with cast resin paper.

Claims (1)

RA. 280 693 * 27-4.63 Claim to protection; Hose branching sleeve f ^f 5r Hochsnannungskabel for operating voltages. of 20 kV and more, with one or more conductors with mass-impregnated paper insulation and a metal sheath or with one or more conductors with plastic insulation and plastic sheath, characterized in that for cables with mass-impregnated paper insulation at the connection point " ¹ ten the insulation prepared according to the requirements, Furthermore, the exposed conductors and the soldering sleeves are unwound with paper tapes which are impregnated with cast resin that has not yet hardened and that in any case the insulating body at the connection point is made of cast resin.