In the industrial environment, lifting machines and cranes are important equipment and constructions. The type of cable used for these devices is called a power cable. They must have a strong outer sheath to withstand continuous stretching.

HELUKABEL's cables, wires, and accessories for lift and crane

What is a power cable?

Power cables are made up of many electrical conductors. The entire conductor will be covered by a cable sheath. The main purpose of using power cables is to transmit electrical energy. The installation location of this cable is extremely diverse: Indoor, overhead, or buried underground.

The basic power cable consists of three main parts: conductor, insulation, and protective jacket. For example

  • Power cables for single-phase, power systems consist of two cores or an additional core of a small cross-section.
  • Power cables dedicated to three-phase power will have three to four cores or an additional core of a smaller cross-section. The type of cable used for three-phase current will be 1.5mm2 or more in size.

How are power cables used?

Power cables are used mainly for signal supply and power transmission. These cables control the device remotely and it has the same functions as the control cable, which is highly applicable in the field of crane, hoist, or festoon installation.

Cables used in the above field should be equipped with a strong outer sheath with protection against continuous movement. At the same time, the cable sheath needs to be effective against oil and chemicals.

  • In the crane field, the power cables used are Neoprene NEO-Flat and PVC sheath (PVC-flat) with Shield or Unshielded versions.
  • Cables used in hoist equipment for vertical applications shall be manufactured with anti-twist features, connecting the motor to the hand assist.
  • Power cables or crane cables have high applications in construction: festoons, conveyors, etc.
  • The cable used in the elevator control installation is equipped with a suspension unit, serving the control panel of the elevator system. The type of cable used in this construction needs to satisfy: high flexibility, extremely small bending radius, long service life, and high economic efficiency can be achieved. Flame retardant and self-extinguishing features are also required.

Some lines of power cables are commonly used in lifting machines and cranes


Technical data

  • Special PUR insulation and sheath adapted to DIN VDE 0250
  • Strain bearing support strand
  • Temperature range

-40°C to +80°C

(up to +100°C for short periods)

  • Nominal voltage

up to 1 mm² U0/U 300/500 V

from 1,5 mm² U0/U 450/750 V

  • Test voltage

up to 1 mm² = 2000 V

from 1,5 mm² = 2500 V

  • Breakdown voltage

up to 1 mm² = 4000 V

from 1,5 mm² = 5000 V

  • Insulation resistance min. 20 MOhm x km
  • Minimum bending radius 10x cable Ø
  • Radiation resistance up to 100x106 cJ/kg (up to 100 Mrad)

Cable structure

  • Bare copper-conductor, to DIN VDE 0295 cl.6 col.4, extra fine-wire, BS 6360 cl.6, IEC 60228 cl.6
  • Core insulation of special PUR
  • Support core
  • Core identification to DIN VDE 0293 (flexible cables)
  • Cores stranded in layers with optimal lay-length
  • Core wrapping with fleece
  • Support braiding of synthetic fibers
  • Outer sheath of halogen-free PUR
  • Sheath colour orange


TROMMPUR® has taken the development of the neoprene type cables one step further. It is a robust, all-weather cable, halogen-free, tear and abrasion-resistant, and suitable for use in drag chains, in ship docks, on building sites, for conveyor systems, in mining, for tunnels, and for roadbuilding. For connecting the ski lift terminal positions to the control unit, surveillance of the joining rods in ski lift cables, as feeder cables for very high currents as for example in pump engineering, mining, locomotive, and rail-carriage construction, for oil rig platforms, emergency power generators, etc. The product is conformed with the EC Low-Voltage Directive 2006/95/EC.


Technical data

  • Trailing cable acc. to UL AWM Style 20235 CSA/AWM
  • Temperature range

flexing -40°C to +80°C

fixed installation -50°C to +80°C

  • Nominal voltage

DIN VDE 600/1000 V

UL 1000 V

  • A.c. test voltage, 50 Hz

core/core 4000 V

  • Insulation resistance min. 20 MOhm x km
  • Speed of motion up to 250 m/min
  • Minimum bending radius 6x cable Ø

Cable structure

  • Bare copper-conductor, to DIN VDE 0295 cl.6, extra fine-wire, BS 6360 cl.6, IEC 60228 cl.6
  • Core insulation of TPE
  • Core identification to DIN VDE 0293 - up to 5 cores colored - from 6 cores, black with continuous white numbering
  • GN-YE conductor
  • Cores stranded around support element
  • Polyester fleece wrapping
  • Outer sheath of PUR with integrated support braiding
  • Sheath colour yellow


The cable has a significantly smaller outside diameter than similar cables, and the smaller bending radius reduces the amount of effective cable. Traction cables are subject to high mechanical stress, suitable for installation environments that often cause the cable to coil or twist. The cable series is suitable for installation in lifting systems and cranes, suitable for the harshest environments such as Mining, railway technology, etc.

Power cables from us, HELUKABEL have been present in many large projects in the Vietnam market and many countries around the world. We supply leading solutions for power cables, suitable for many fields, especially lifting machines and cranes. If you have any questions or need in-depth technical advice, please contact our engineers for more details.

For more information, please contact:


54, Street 1, Cityland, Ward 7, Go Vap District, Ho Chi Minh City 700000, Vietnam

Tel. +84 28 22536441 | info@helukabel.com.vn | www.helukabel.com.vn