(N)TSCGEHXOEU 12/20–20/35 kV Wind Turbine Twist Cable

(N)TSCGEHXOEU is a flexible medium-voltage power cable designation for wind-turbine routes that hang freely, twist with equipment movement or are installed fixed. The supplied design references cover 12/20 kV and 20/35 kV 3+3 configurations, plus a separate 12/20 kV three-core configuration. Each has its own outside diameter, bending, electrical and weight data; choose the formation before selecting a termination or planning tower clearance.

The referenced construction uses finely stranded Class 5 bare copper conductors, HEPR insulation with semiconductive field-control layers, a halogen-free GM1b inner sheath and a black halogen-free HXM1 outer sheath. It is intended for medium mechanical stress in wind turbines. A published ±100°/m torsional reference describes the catalogue design, while the allowable movement of an actual assembly depends on the selected size, unsupported length and termination layout.

Use the separate tables in Specifications to compare the exact model, rated voltage and core formation. Quotation inputs should include the turbine voltage, three-core or 3+3 formation, cross-section, free-hanging length, twist envelope, bend path, environment and required acceptance documents. For the higher voltage wind family, see the 36/60–69 kV (N)TSCGEHXOEU cable; for a single-core screened route, see 12/20 kV (N)TMCHXOEU. Browse the industrial cable range for adjacent duties.

Construction

The design reference uses fine-stranded, Class 5 bare copper conductors. The HEPR dielectric is bounded by inner and outer semiconductive rubber layers to control the electrical field. Natural core colouring with the black semiconductive layer is specified in the source.

The source lists no universal metallic-screen or armour arrangement for every row. Any required screen, bonding path and termination details should be confirmed against the released cable drawing for the selected configuration.

Applications

The reference design is intended for wind-turbine medium-voltage power transmission with medium mechanical stress. The catalogue permits free-moving, free-hanging and fixed installation, and identifies twistability for free-hanging operation. Validate torsional duty, cable support and bend path against the turbine layout before selecting a size.

Three-core or 3+3?

The 12/20 kV catalogue contains both 3+3 and three-core rows. They are not interchangeable dimension tables: for example, the 3+3 3×70+3×70/3 row and three-core 3×70/70 row share nominal phase size but have different documented masses and bend-radius values. Specify the full catalogue formation on the RFQ and electrical drawing.

A crane reeling cable follows a different winding duty. For that route, compare the NTSCGEWOEU medium-voltage crane reeling cable rather than selecting this wind-tower construction by voltage alone.

Specifications

Select voltage and exact core formation before comparing outside diameter, current, terminations or free-hanging geometry. The three source tables below are separate constructions; a 3+3 row must not be read as a plain three-core row.

12/20 kV, 3+3 configuration

20/35 kV, 3+3 configuration

12/20 kV, three-core configuration

Catalogue ampacities refer to free air at 30°C according to IEC 60364-5-52 Table B.52.12. They require derating and installation review for the actual tower route. Dimensions and weights are nominal catalogue references, not a released TEBAOFLEX production drawing. ‘—’ means the source table does not supply that value.

Standards

The supplied 12/20 kV and 20/35 kV reference sheets list IEC 60840, IEC 60502-2 and DIN VDE 0250-813 as design standards; the separate 12/20 kV three-core sheet states that its construction is based on DIN VDE 0250-813. IEC 60228 / DIN VDE 0295 is the Class 5 conductor reference. The standards scope for a purchase order must be stated in the agreed technical schedule.

Confirm the applicable tests and documents for the ordered voltage, core arrangement and installation duty before release.