NSHTOU Drum Reeling Cable

Drum reeling cable
  • Type: NSHTOU Reeling Cable
  • Rating Voltage:0.6/1kV
  • DIN VDE 0250-814
  • Oil & Flame Retardant

Application
NSHTOU drum reeling cable is used as connection and control cable with high mechanical stress, designed for application with frequent winding and un-winding whilst under tensile and torsional strain.
It is also suitable for heavy equipment such as cable reels, hoists, lifts, portable engines, traction motors, and cranes.

Standards
According to DIN VDE 0250-814
Flame retardant to VDE 0482-331-1-2, IEC 60332-1
Oil-resistant to DIN VDE 0473-811-404

Conductor: Stranded tinned copper wire, class 5
Insulation: rubber compound
Inner sheath: Neoprene
Braid: textile braiding as protection against torsion, embedded between the inner and outer sheath
Outer sheath: Neoprene ( Black color )

Core identification
3 cores: brown, blue, green/yellow
4 cores: brown, blue, black, green/yellow
5 cores: brown, blue, black, grey, green/yellow
6 cores and above: black core with white numbers

CE Certificate

Drum Reeling Cable: The Ultimate Guide

Drum reeling cable is special type of crane cable you can use on a cable reeling drum.

They play an important role in supplying power to various mobile or portable equipment such as hoist, conveyors or cranes.

Today’s guide focuses on vital aspects of drum reeling cables such as – structure, classification, features, and certification, among other vital aspects.

Offshore reeling drum

Offshore reeling drum – Photo credits: Metreel

Uses of Drum Reeling Cable

Well, Drum reeling cable finds its application in various areas such as:

· Cranes

Drum reeling cables are normally used by cranes in ports for loading and offloading goods in ships among other areas.

Therefore, it important that the drum reeling cable used here is all-weather and of high quality.

· Conveyors

Most of the conveyors normally use drum reeling cables.

This is due to the fact these cables are very strong and durable.

Therefore, they can transmit power to any place within range.

· Hoists

Hoist use drum reeling cables in lifting or lowering of loads.

Hoists are either manually operated or electrically operated.

· Power Supply

Drum reeling cables are often used in supplying power.

Due to its flexibility, you can supply power to any place within range.

· Mining and Tunnel Drilling

Drum reeling cables are used in mining industries as well as in tunnel drilling.

The drum reeling cables used here have high tensile strength and can also absorb extreme shock.

Structure of Drum Reeling Cable

Cable core

Cable core

 Cable Conductor

The conductor is normally stranded copper.

Copper is usually denser and heavier, but it is normally more conductive than the aluminium.

Normally, the surface of the conductors; for instance, copper is coated to prevent deterioration of the copper at high temperature.

Color coding is as follows;

  • White/brown, green/yellow
  • White-blue/blue
  • White-orange/orange
  • White-green/green
  • White- brown/brown

· Insulation of Drum Reeling Cable

Well, insulation of the drum reeling cables can either be a thermoplastic or thermosetting material.

Insulation can be done by the following materials;

a) Plastics

This is commonly used for the case of electrical conductors.

It is important to note that plastics are normally flexible, moisture-resistant as well as having good insulating power.

They are common insulating material in low or medium voltage systems.

The following are designators used when insulating using thermoplastics;

  • T – Thermoplastic
  • H – Heat resistant
  • W – Moisture resistant
  • A – Asbestos
  • N – Outer nylon jacket
  • M – Oil resistant

b) Paper

Paper is also used for insulation, but only when coated with high-grade mineral oil.

This is because the oil has high dielectric strength, thus protecting it from breakdown.

Therefore, the paper should be soaked with oil then wrapped around the conductor.

c) Enamel

In this method, the wire that is bare is passed through a hot solution of enamel.

Thus it is worth noting that when insulating with enamel, the product is best obtained with thin wires and not thick wires.

This is because large wires normally fracture when bent.

d) Mineral Insulated (MI)

MI is suitable for noncombustible cables.

They have both high heat and water resistance.

You can achieve this by compressing the conductor in magnesium oxide.

Drum Reeling Cable Inner Sheath

The inner sheath is normally meant to ensure the bundles are together.

Besides, they provide bedding for cable armor.

Cable structure

Cable structure

Outer Sheath for Cable

This is normally applied on the armor. In addition, this ensures protection against weather, mechanical, electrical as well as against chemicals.

The outer sheath is also colour-coded to ensure there is a difference between LV, HV and instrumentation cables.

It is in the outer sheath that the markings of the manufacturer are printed.

Types of Drum Reeling Cables

Drum reeling cable

Drum reeling cable

1. Low Voltage Drum Reeling Cable

This finds its use in dump areas, outdoors as well as in the areas where there is a high risk of explosion.

In addition, low voltage drum reeling cables are used when there are high mechanical loads in the areas mentioned.

Its nominal voltage is Uo/U:0.6/1 kV and the maximum operating voltage in AC systems is Um 1.2 kV, and maximum in DC system is Vm 1.8 kV.

2. High Voltage and Medium Voltage Drum Reeling Cable

These ones find their uses in the ship to shore cranes, rail-mounted gantry cranes and stacker reclaimers.

Moreover, they are also used in ship unloaders and other heavy mobile equipment.

The voltage range here is from 1.8 to 3.0 kV and sometimes up to 18 to 30 kV.

3. High Tension TPE Drum Reeling Cable

This is normally used in tunnels, oil mining at the sea, mining, and ships.

It is used in combination with cranes, festoon, winding motion, among others.

It has a nominal voltage of 300/500V, 450/750V, 600/1000V.

In addition, this drum reeling cable has the following features;

  • It is flexible
  • Has abrasion resistance
  • Has tension resistance
  • Has oil resistance
  • Has flame resistance
  • Has UV resistance

4. Anti-UV Blue Drum Reeling Cable

This is also used in the mining, ships, tunnels, and an oil platform at sea and has a nominal voltage of 300/500V, 450/750V, 600/1000V.

Therefore, its features are similar to the ones of high-tension TPE drum reeling cable.

5. Weather Resistance Drum Reeling Cable

This is also used in the mining, ships, tunnels, and in oil platform at sea.

It has a nominal voltage of 300/500V, 450/750V, 600/1000V.

In a nutshell, these are some of the most common types of flexible marine cables.

Features to look for in Drum Reeling Cable

Features of drum reeling cable

Features of drum reeling cable

· Weather Resistance

When looking for a drum reeling cable, it is important to consider whether it is weather resistance.

This is because these drum reeling cables might be used in an environment that is very hot or very damp.

Therefore, it is expected that the drum reeling cable stays longer, and this will depend on the type of insulation that was used.

· Resistance to High Mechanical Stress

Because drum reeling cable is used in areas that require constant winding and unwinding, the cable chosen should withstand this stress.

Therefore, it is important to choose the cable that is durable and can withstand the work and thus last longer.

· UV Resistant

It is important to consider the type of insulation that is used in the drum reeling cable.

Therefore, consider choosing those cables with PVC/TPE/TPU insulation material.

· Ability to Withstand Varying Weather Conditions

Well, you should note that drum reeling cables finds their uses in different areas.

Therefore, the drum reeling cable you choose should be suitable for use in all weather conditions.

These areas have varying temperature and require that the drum reeling cable you’ll choose should withstand temperature fluctuations.

Such drum reeling cables can withstand use for a long period of time.

· Flexibility

This is important because drum reeling cable is used in works that require constant winding and unwinding.

Therefore, the drum reeling cable should be flexible enough.

· Oil Resistance

It is important that oil or any chemical spillage should not damage the drum reeling cable.

Therefore, consider choosing a drum reeling cable that has good insulation.

It should neither be affected by oil or most chemicals.

· Flame Resistance

During winding and unwinding of drum reeling cable, friction normally produces a lot of heat.

Thus, the drum reeling cable used should not have the ability to catch fire easily.

· Better Insulation

As discussed earlier on insulation, consider choosing a drum reeling cable that has suitable insulation.

This depends on the area of application that the cable will find its use.

Drum Reeling Cable Standards

You should choose a drum reeling cable that conforms to the following standards:

  1. DIN VDE 0250-814 – refers to those used for insulation as well as sheathing compounds for cables. In addition, the drum reeling cables with this standard are used for power installation.
  2. VDE 0482-331-1-2- the drum reeling cables with this standard are flame resistant.
  3. IEC 60332-1- the drum reeling cables with this standard has a test temperature, and therefore they are normally flame resistant.
  4. DIN VDE 0473-811-404- have oil resistant and can be used in damp rooms as well as in outdoor areas.

Certifications to Look for in Drum Reeling Cable

Well, any product in the market must meet standards for it to be safe for use.

Drum reeling cable is not an exception.

Therefore, for it to meet the standard, it must have CE marking on its outer surface.

This certification marking shows the conformity with sheath, safety, and environmental protection standards.

Installation of Drum Reeling Cable

Well, in order to ensure that your drum reeling cable functions efficiently, you must follow an appropriate installation process.

Here is the procedure to follow in order to install the drum reeling cable.

I. Working with Reducer

  • Fixing of the rope on the reducer shaft as well as eye bolt which is on the slip spring box.
  • The reducer is then transported to a required position.
  • Fasten the bolts on the reducer while it is in position and ensure the nuts and spring washers are fastened too.
  • Unscrew bolts which are found on a flange, and this is followed by wiping the rust preventive.
  • Ensure no contact is made with the flange and the reel drum.
  • Confirm the oil level on the reducer through the oil sight gauge and ensure that it is in the middle level.

II. Handling Reel drum

  • Remove the front cover from the drum
  • Ensure the rope is fixed through the rim of the reel drum
  • Take the reel drum to the flange that is in front of the reducer by a crane and then assembles them.
  • Once the bolt holes are in line, ensure you fit screws and spring washers and tighten.

III. Wiring of Motor

  • Ensure you confirm the frequency, current, and voltage of the motor
  • Remove the terminal box cover of the motor
  • Ensure you connect the cable making use of cable protection tubes via a cable gland
  • Insulate the cables after connecting to the motor cable then replace the terminal cover
  • Turn on the power then check the direction of rotation of the reel drum
  • When the direction is not correct, ensure you change the V and W and reconfirm the direction of rotation
  • Once the direction of rotation correct, remove the wooden blocks from the spokes of the reeling drum

IV. Connecting and Wiring of the Reeling Cable

This is what you should do:

· Part of the Reeling Drum

Well, here you need to check the cable specifications that include winding length, dead turn, installation height and connecting length to the junction box.

  • Guide roller should be attached to the assigned position and remove cable gland to reel drum. Then measure the length and then take off outer cable cover.
  • The cable is installed through the guide rollers and then to cable gland.
  • Remove the cable clump attached to the drum then wind it 2 to 3 times around the cable.
  • Finally, connect the cables to the terminal block then install front cover.

· Wiring of the Slip Ring

Here, connections depend on the number of slip rings.

If the number is less than 12 sets, then connect directly to the brush holder.

If slip rings are more than 13, then connect to the terminal block.

How to Safely Handle Drum Reeling Cable

For any equipment to last longer, proper handling should be done, and this will include even the storage.

The following are requirements when storing the cable indoors.

Marine cables

Marine cables

  • The cables have to be stored in dry and locations which is UV protected.
  • It is also worth noting that the watertight containers that are located outside may experience condensation. Therefore, it cannot be assumed to have low humidity or dry.
  • The storage locations should be free from humidity, oil, grease, or any open flame.
  • During handling of the cable, interleaving of the flanges of reels is not recommended.
  • The flanges shall not be used to lift the reels.
  • The storage of the reels should be on flat surfaces.
  • During the rolling of the reels, you should not kick the cables to avoid damaging the cable.
  • In case the reel is to be moved, and it is too heavy, the reel mover or the folk lifts should be perpendicular to the reel flange.
  • During use or transportation, the cable reel should not be dropped from any height.
  • When storing the drum reeling cables outdoor, it is recommended that ends of the cable to be sealed.

Conclusion

Clearly, before you buy drum reeling cable, it is important to know the specific application, features and quality compliance.

Moreover, you must have mechanisms in place to handle and store cable.

And more importantly, buy drum reeling cables from an experienced and certified manufacturer.

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