Installation, Transport & Storage Recommendaitons For Cables

GENERAL
This document provides guidelines for installation. The guidelines are based on the IEC 60092-352-1) standard and the following standards and experiences from users. Because the requirements of classification societies may differ, for installation procedures approved by the relevant classification society in every project.

CABLE SELECTION
Cables recommended to be mounted outside can be mounted outside on an open deck. If the cable will be subjected to heavy direct impacts sunlight, black coloured cable is recommended on the outer sheath. For example; Power and control cables 0.6/1 kV voltage is black.

CABLE PULLING
Only cables of the same size should be pulled at the same time. If cables of different sizes (i.e. large differences in cable diameters) small cables will be damaged if they are pulled at the same time. It is recommended to use a pulley when pulling large cables. If the cables are pulled with the help of a winch, the cables should not be pulled crossing each other to avoid the following reasons. Abrasion of the sheath at the point where the cables cross.

PROTECTION OF CABLES DURING REPAIR OR CONSTRUCTION

  • When welding close to cable reels or pre-installed cables:
  • The drum and cable must be protected against a fire blanket for welding sparks or with a protection plate.
  • Against abrasions on the outer sheath:
  • Temporary cables used in the field (e.g.welding and lighting) must not be pulled crossing already installed cables to prevent wear of the sheath at the transition point

 

MINIMUM CABLE BENDING RADIUS

The minimum bending radius during installation and for fixed installation shall be as specified in the TDS prepared by ÜNİKA Cable.

  • UNARMOURED AND UNSHIELDED CABLE TYPES
  • UNARMOURED AND UNSHIELDED CABLE TYPES
  • ALL OTHER TYPES

Diameter Range     /       During installation    /      Fixed installation
R                                   TDS                                        TDS

 

MINIMUM INSTALLATION AND OPERATION TEMPERATURE

  • Minimum installation temperature for all cable types is –15 °C.
  • Lowest operation temperature for all cable types is –40 °C.

STORAGE

Cable drums must be stored properly. Improper storage conditions can easily damage the cable drums Cable ends should be covered with caps to prevent water ingress. Cable drums must be protected to avoid any mechanical risk and external shocks. At all times transport rules must be observed before transporting cable drums.

Cable drums must be stored on a flat and solid surface. The drums must not be standing, exposed to water or stored in permanently damp conditions.
In order to ensure these conditions, the timber must be stored in such a way as to prevent rotting and potential fracture of the timber and weakening of the flange or collapse of the drum to the point where the cable breaks.

Will eventually stop in place. Any of these consequences can make the subsequent installation of the cable more problematic.

 

LONG-TERM CABLE STORAGE

Always inspect the drum before moving it from long-term storage. Transport vibrations and movement, weathering or environmental damage can cause changes in the drum and an assessment of the state of the drum is necessary.
In changing dry and wet weather, or consistently dry and hot weather, the wooden sections of the drum can shrink and the whole drum could become unstable and cause damage to the cable when moving the drum. Therefore, the transverse bolts must be tightened with a torque
The end cap is designed to prevent the ingress of water. If the cap or seal has been absent for a long time (more than one month); or the cable end faces up toward the sky; or the end cap has been absent during periods of rain; or any form of cable end deterioration / ageing / swelling / or soiling is observed; it is recommended that the cable end be cut back 30 cm and re-examined for presence of moisture. If moisture is found, cut back further, and apply a new end cap to the cable end, ensuring a tight seal to the cable outer layer.

 

HANDLING AND STORAGE CONDITIONS

  • All cables on drums shall be protected with suitable protection such as plastic wrapping, lagging, etc. and all drums shall bear metal or hard plastic labels including information of cables to be needed for identification during and after transportation and storage.
  • Cables (especially with black sheath) exposed to direct sunlight will become warmer than the ambient temperature. It must be ensured that the temperature of the cable will not exceed
  • The allowed maximum temperature for storage. See cable data sheet for temperture details regarding the cable types.
  • To avoid direct exposure to sunlight the cable for a long time period, storage in shadow is recommended.
  • The both cable ends shall be sealed against ingress of moisture during transportation and storage.
  • Over the battens, there shall be two steel or hard plastic tapes fastened around the drum during transportation or storage to keep the battens in alignment.
  • Drums must be protected against rolling away; one or two side may be fixed with wood wedges.
  • Drums must not be laid on flanges or piled up while stored.
  • The drums shall not be standing in direct contact with water or damp soil to avoid rotting of the drum.
  • Drums must be stored in areas without influence of high heat or close to (open) fires. Areas where chemicals, petrol, etc. could be spilled over them must be avoided.
  • If stored in a secure and suitable area, periodical inspections of the drums are recommended, at least quarterly. In case of direct exposure to weather, sunlight, etc. the interval between inspections should be shortened.

DRUM HANDLING

Pay attention below instructions during the handling of drums;

DRUM STORAGE

Pay attention below instructions during the storage of drums;

Paying-off the Cable

  • The lower end of the cable should be free.
  • Drums should be unreeled without exceeding the maximum allowed pulling force of the cable.
  • The minimum bending radius of the cable should be equal to or greater than the value of stated in technical papers.
  • When pulling the cable off the drum, the arrow (painted on the flange of the drum) will point in the opposite direction to the rotation of the drum.

LOADING CONDITIONS

Option 1- Lay on Flanges

Drums with 120 cm or smaller diameter, lay down on flanges and may put the drums above the other drums in a row. Drums with 130 cm and higher, will be put upright and fix with wooden wedges.

Option 2- Upright

All drums will be put upright position and will fix with wooden wedges to prevent them rolling.

Option 3- Lay on Flanges with Pallet

Drums with 120 cm or smaller diameter, lay down on flanges and fix the drums on pallet. Drum may be put above the other drum in a row.
Drums with 130 cm and higher, will be put upright on pallet and fix with wooden wedges.

Option 4- Upright on Pallet

All drums will be put upright position on pallet and will fix with wooden wedges to prevent them rolling. Only one drum will be put on one pallet.

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