NTSCGECCWOEU Armoured Monitored Mining Cable 3.6/6-6/10kV

NTSCGECCWOEU Armoured Monitored Mining Cable

NTSCGECCWOEU is a medium-voltage trailing cable to DIN VDE 0250 Part 813 with a monitoring shield and, as its defining feature, a braided armour of galvanised steel wires fitted below the outer sheath. That armour is the difference between this designation and the otherwise similar NTSCGECWOEU: it takes particularly high mechanical loads and at the same time forms an external earthed shield.

The letter sequence matters. NTSCGECCWOEU carries two C positions and is armoured; NTSCGECWOEU has one and is not; NTSCGECECWÖU is a different monitoring construction again. These are separate cables, not spelling variants of each other, and substituting one for another on a transformer feed is a real failure mode.

• Rated voltage: 3.6/6 kV and 6/10 kV.
• Armour: braided galvanised steel wires, also acting as an earthed external shield.
• Bending radius: 4 × D static, 7.5 × D mobile.
• Monitoring: conductive rubberized textile tape plus a copper-steel spiral shield.

The phase-concentric earth conductor and the common concentric monitoring shield, used with a high-voltage protection circuit, allow the cable to be monitored for insulation faults and for damage from external influences. For the unarmoured build see (N)TSCGECWÖU TBM cable; for the separate-earth monitoring construction see (N)TSCGECECWÖU.

NTSCGECCWOEU Cable Construction

The layer sequence below is the armoured build. Positions 1 to 11 are shared with the unarmoured construction; position 12, the galvanised steel wire braid, is what makes this NTSCGECCWOEU.

Designation elements

3E denotes the three-part earth arrangement, ST a control core and ÜL the monitoring conductor. A build written 3 × 25 + 3 × 16/3E + 3 × 2.5 ST + ÜL therefore has three 25 mm² phase cores, a 16 mm² earth in three parts, three 2.5 mm² control cores and one monitoring conductor.

Supply form

The cables are supplied in matched lengths, typically 100 m or 200 m, with both ends fitted with terminations adapted to the entry fitting of the high-voltage connection box. Termination type and entry fitting must be stated with the enquiry, since they are made to the box, not to the cable alone.

NTSCGECCWOEU Applications

NTSCGECCWOEU connects electrical equipment in mines and underground excavations with hazardous environments, under particularly high mechanical loads. The typical case is a high-voltage transformer on an underground mining or tunnelling power line, where the cable must stay live and monitored while equipment is repositioned.

• High-voltage transformers on underground mine and tunnel power lines.
• Routes where mechanical protection beyond an unarmoured trailing cable is required.
• Installations needing an earthed external metallic shield in addition to the monitoring shield.
• Equipment that must be moved while running, within the stated bending limits.

Application boundaries

The flexibility of the cable allows operating equipment to be moved while running. It is a trailing construction rather than a high-speed reeling cable, and the terminations are built to the high-voltage connection box on the equipment, so the box type and entry fitting are stated with the order.

Related monitored medium-voltage references

Compare (N)TSCGECWÖU TBM cable, the unarmoured build of the same family, and (N)TSCGECECWÖU TBM reeling cable, which uses a different monitoring and earth arrangement at 8.7/15 and 12/20 kV.

Reference note: enquiries arriving marked TENAX-HP or NTSCGECCWÖU are handled on this page; TEBAOFLEX manufactures to the designation and construction shown, and is not affiliated with the trademark holder.

Reference designation cross-reference

This armoured monitored cable is catalogued under a reference name of its own, and it is the armoured counterpart of the unarmoured monitored build.

For the counterpart construction see (N)TSCGECWÖU monitored TBM cable.

For the full list of reference designations and the TEBAOFLEX build each one maps to, see the mining cable designation cross-reference.

Trademark note: TENAX®, TROMMELFLEX®, FELTOFLEX® and SCHRÄM® are trademarks of their respective owners, and TEBAOFLEX is neither affiliated with those companies nor reselling their cable. What we supply is the equivalent construction: we manufacture to the same VDE type designation and published construction, and every designation listed here can be quoted and supplied as a TEBAOFLEX build. The names appear so that an enquiry written in those terms reaches the matching construction, which is made to the standards and construction confirmed for the order.

NTSCGECCWOEU Specifications

NTSCGECCWOEU 3.6/6 kV size table

NTSCGECCWOEU 6/10 kV size table

All listed builds are available to order. The 6/10 kV range is offered to 3 × 50 mm²; larger sizes at that voltage are quoted against the project drawing. Dimensions and weights are nominal values.

NTSCGECCWOEU Standards, Approvals and Order Documentation

Approvals

Order package

State the rated voltage, phase and earth cross-sections, control and monitoring core requirement, the transformer or equipment connection box and its entry fitting, required matched lengths, the protection and monitoring circuit in use, and any project inspection or documentation scope.