Oman Cables Industry (SAOG) .Oman Cables Industry (SAOG) ... the capital of the Sultanate of Oman,
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OCI/PB LC PC/REV.000/010511 1
Oman Cables Industry (SAOG)
Oman Cables Industry (SAOG) develops, manufactures and markets a totally integrated product range of various cable types.
OCI was established in 1984 by the current Chairman, Mr. Mustafa Mukhtar Al Lawati and the Vice Chairman and Managing Director, Mr. Hussain Salman Al Lawati. The factories are situated in Muscat, the capital of the Sultanate of Oman, in the Rusayl Industrial Estate, which is the largest industrial complex in the country. OCI office buildings and factory presently occupy an expansive area of around 135000 square meters and it is still expanding.
The company offers an unrivalled experience and a vast product range developed organically at the leading edge of technology. It manufactures a variety of products, which include medium voltage power cables, low voltage power & control cables, instrumentation cables, pilot cables, overhead power transmission line conductors, building wires. It also offers cables with special features like flame retardant properties, low smoke and fume (LSF) properties, cables with anti-termite sheaths, UV resistant outer sheath etc., suitable for different types of applications or environmental conditions.
OCI manufacturers its products in accordance with all relevant International standards like BS, IEC, ASTM etc, as well as customer specified standards. The complete range of OCI products have been type tested and approved by independent bodies such as BSI, KEMA, VDE and TAG Corporation. OCI quality management system is certified by BASEC, UK as per ISO 9001 standard. OCI also boasts its own in-house type test facilities.
It has won His Majesty Sultan Qaboos trophy for the best industry 5 times in 1991, 1992, 1996, 1997 and 2005. The company was judged on many factors including product quality, training & safety, sales turnover, export, financial strength, use of local manpower and resources and others.
It has also won the Flame of Excellence and Exporter of the Year awards two years in succession, it has recently won the Corporate Governance Award in 2011.
OCI has maintained an enviable growth record year on year. The products manufactured by OCI are sold not only in the region but also beyond to Australia, Japan, South Korea, East & Western African countries, Europe and The United Kingdom.
They have been installed in a variety of applications including Power plants, Sub-stations, Oil Refineries, Fertilizer complexes, Petroleum & Gas handling facilities, Metro Rails, Hospitals, Shopping Malls, Hotels and Airports.
The company is driven by a central philosophy based upon 3 key factors, Partnership, Innovation and Quality. We take pride in our ability to offer products to each of our customers by meeting their specific needs quickly, efficiently & with an assurance of product quality.
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Winners of His MajestysBest Industry Trophy
for the Years 1991, 1992, 1996, 1997 & 2005
OCI/PB LC PC/REV.000/010511 3
Introduction ......... 5Cable Construction & Manufacturing process ........ 6Notes on FRLS & FR Sheathed cables ........ 7-8Oman Cables Quality Assurance ....... 9Cable Care ..... 10Drum Handling Instructions ..... 11Special Guidelines for LSF (LSOH/LSZH) Sheathed cables ..... 12
XLPE Insulated Power Cables (Dimensions & Weights)XLPE (Lead Covered) Power Cable Manufacturing Process at OCI .. 15Single Core (CU or AL/XLPE/LC/AWA/PVC) .. 16Single Core (CU or AL/XLPE/LC/PVC) .. 162 Core (CU or AL/XLPE/LC/SWA/PVC) .. 172 Core (CU or AL/XLPE/LC/PVC) .. 173 Core (CU or AL/XLPE/LC/SWA/PVC) .. 183 Core (CU or AL/XLPE/LC/PVC) .. 184 Core (CU or AL/XLPE/LC/SWA/PVC) .. 194 Core (CU or AL/XLPE/LC/PVC) .. 193.5 Core (CU or AL/XLPE/LC/SWA/PVC) .. 203.5 Core (CU or AL/XLPE/LC/PVC) .. 205 Core (CU or AL/XLPE/LC/SWA/PVC) .. 215 Core (CU or AL/XLPE/LC/PVC) .. 21Single Core (CU or AL/XLPE/LC/AWA/PVC)-1.8/3 (3.6) KV .. 223 Core (CU or AL/XLPE/LC/SWA/PVC) -1.8/3 (3.6) KV .. 22
XLPE Insulated Control/Auxiliary Cables (Dimensions & Weights) 1.5 MM2 Size (CU/XLPE/LC/SWA/PVC) .. 241.5 MM2 Size (CU/XLPE/LC/PVC) .. 242.5 MM2 Size (CU/XLPE/LC/SWA/PVC) .. 252.5 MM2 Size (CU/XLPE/LC/PVC) .. 254 MM2 Size (CU/XLPE/LC/SWA/PVC) .. 264 MM2 Size (CU/XLPE/LC/PVC) .. 26
Current Ratings & Voltage DropSingle Core (CU/XLPE) .. 272 Core (CU/XLPE) .. 283 & 4 Core (CU/XLPE) .. 29Single Core (AL/XLPE) .. 302 Core (AL/XLPE) .. 313 & 4 Core (AL/XLPE) .. 32
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Current Rating FactorsRating factors for variation in ambient Temperature .. 33Rating factors for variation in Ground Temperature .. 33Rating factors for depths of laying for cables laid direct in groundor in ducts ...... 33Rating factors for variation in thermal resistivity of soil for 2 or 3 singleCore cables laid direct in ground ...... 34Rating factors for variation in thermal resistivity of soil for Twin or Multi core cables laid direct in ground ......... 34Rating factors for variation in thermal resistivity of soil for 3 singleCore cables laid in duct ......... 35Rating factors for variation in thermal resistivity of soil for Twin or Multi Core cables laid in duct ......... 35Group rating factors for more than one Twin or Multi Core cableslaid direct in ground .. 36Group rating factors for more than one circuit of 3 Single Core cableslaid direct in ground .. 36Group rating factors for more than one Twin or Multi Core cableslaid in single way ducts .. 36Group rating factors for more than one circuit of 3 Single Core cableslaid in single way duct .. 36Group rating factors for more than one Twin or Multi Core cableslaid in air .. 37Group rating factors for more than one circuit of 3 Single Core cableslaid in air .. 38
D. C. & A. C Resistance and Reactance Values .. 39
Short Circuit Curves .... 40-41
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All cable designs covered in this publication conform to IEC 60502 Part-1 for working voltages 600/1000 Volts and 3300 volts. The general types of cables are XLPE Power & control cables (Armoured/Unarmoured) with Lead sheath.
OCI can also offer these cables with PVC insulation and details of the same can be provided on specific request.
OCI also manufactures cables conforming to other National or International standards with specific customer requirements. This includes cables with MDPE Sheath, Fire Retardant Cables (FR), Fire Retardant and Low Smoke PVC Sheathed Cables (FRLS), Fire Retardant and Reduced Toxic emission PVC sheathed cables (FRRT), Low Smoke Halogen Free Sheathed Cables (LSF also known as LSOH or LSZH). Also, cables with special PVC compound with anti-termite and anti-rodent properties can be supplied upon request.
Medium Density Polyethylene (MDPE) Sheathing compound shall meet the requirements of Type ST7 to IEC 60502-1. All dimensional details of such cables shall be same as the cables as per IEC 60502-1.LSF (LSOH or LSZH) Sheathing compound shall meet the requirement of Type ST8 to IEC 60502-1 or Type LTS1 to BS 7655. All dimensional details of such cables shall be same as the cables as per IEC 60502-1.
Based on specific requirement, OCI can also provide copper wire armoured cables or additional tinned copper wires in the armour, swellable tapes under and over armour, steel tape armoured cables etc.The above cables are supplied in Wooden/Steel drums covered with Lamiflex lagging as a standard practice.
TECHNICAL ADVISORY SERVICESOCIs staff includes specialist Engineers with wide knowledge and decades of long experience in the field of cables and their applications. The technical expertise and experience is available to all clients in the selection of appropriate cable design/specifications.
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Conductor : Copper or Aluminium used for the Conductors obtained in the form of 8.0 mm Copper or 9.5 mm Aluminium rods. After testing, rods are drawn into wires of required sizes. These wires are formed into final Conductor in the stranding machines under strict Quality surveillance.
Insulation : Cross linked polyethylene compound is insulated over the conductors by extrusion process. The raw materials and thicknesses of Insulation are maintained as per standards and conform to IEC 60502 Part-1 or any other International Standard.
The Cores of cables are identified either by colour or by numbers as follows:
No. of cores Identification BS Old Colour coding BS New Colour coding1 Red or Black Brown or Blue2 Red & Black Brown & Blue3 Red, Yellow & Blue Brown, Black & Grey 4 Red, Yellow, Blue & Black Blue, Brown, Black & Grey5 Red, Yellow, Blue, Black & Y/G Blue, Brown, Black, Grey & Y/G6- 61 By numbers By numbers
Laying up : The insulated cores are laid up with a right hand, or alternating left & right hand, direction of lay in the sequence of the core numbers or colours. Where necessary non-hygroscopic fillers and binder tape is used to form a compact and reasonably circular cable.
Bedding : All cables have taped bedding under the lead sheath (Extruded bedding can be provided, if required). The bedding material used is compatible with the operating temperature of Insulation material. Thickness of bedding shall be as per IEC-60502-1.