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HT XLPE Cables (upto132KV)

Due to rapid industrial & economic growth it has become necessary to transmit bulk power to sustain the growth. It is also very important that while transmitting bulk power logistic & safety consideration are given due weightage. The most ideal solution, considering all the aspects is to transmit bulk power through underground cables & keeping in line with the basic philosophy of the organisation, extra high voltage cable introduced.

Metallic Sheath :

Metallic Sheath is must for cables above 33 kV as the cable of voltage grade 66 kV & above are working with dielectric stress of above 6 kV / mm & at this level of dielectric stress presence of water triggers tree formation in the insulation resulting in cable failure.Water can enter the cable longitudinally as well as radially. Longitudinal water entry can be blocked by using water swellable tape on the core. Lead sheath can block the entry in radial direction. Lead sheath is extruded by continuous lead extruder which is equipped with micro-processor based temperature controllers & drives to achieve uniform thickness, better concentricity. Lead sheath in addition to other electrical & manufacturing advantages has a life span of minimum 40 to 45 years.

Cable selection / design parameters : Cable Design Mainly Depends on
•	System voltage
•	Impulse level
•	Fault level & duration
•	Ground & air temperaturen
•	Thermal resistivity of soil

Salient Features of EHV / XLPE line
•	The only manufacturer in the country to have 2 Dry cure / Dry cooled lines sourced from SCHOLZ Germany
•	Highly sophisticated extruders for conductor shield, insulation and insulation shield, employing a three layer single head triple extrusion method to eliminate contaminants in the insulatinglayers. These are sourced from ROYLE USA.
•	Microprocessor based equipments control all the parameters required for the process within the specified limits.
•	Separate pressurised rooms for semicon shield & XLPE insulation to avoid contamination & this material is handled by vacuum loaders.
•	Air systems with air showers on doors to eliminate dust entry.Cable selection / design parameters

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HT XLPE Leaflet (upto 132 kv)

The range of products we offer includes Power Cables, HT XLPE, LT XLPE and PVC Cables, Instrumentation Cables, Telecommunication Cables (PI JF), Auto Cables, Housewires and Flexibles. The HT XLPE Cables we offer starts from 132 KV. Technological upgradation and Polymer revolution has replaced the conventional paper insulated cables and thermoplastic insulated cables with crosslinked Polyethelene (XLPE) having better electrical, mechanical and thermal properties with reduced cable weight and dimensions. For over two decades our aim is to provide cables of highest quality and to provide customer satisfaction that is unparalleled in the industry.

Advantages of Polycab xlpe Cables
•	Higher Electrical Strength Retention	•	Better Electrical, Mechanical & Thermal Properties
•	Higher Short Circuit Rating	•	Easy Jointing & Termination

We provide the following voltage grade cables as per
IS-7098 (Part 2), IS-7098 (Part 3), IEC-60502, BS-6622 and
other International Standards.

•	3.3 kV (E) and (UE) Unscreened / Screened Cables
•	6.6 kV (E)
•	6.6 kV (UE) or 11 kV (E)
•	11 kV (UE)
•	22 kV (E)
•	33 kV (E)
•	33 kV (UE)
•	66 kV (E)
•	132 kV (E)
Sizes :
50 Sq.mm to 1000 Sq.mm in Single Core Cables.
35 Sq.mm to 400 Sq.mm in Three Cores Cables.

Flame Retardant (FR), Flame Retardant Low Smoke (FRLS) and Halogen Free Flame Retardant (ZHFR) Sheathed HT XLPE cables are also offered by us.. The XLPE cables are on sophisticated triple extrusion CCV line, in highly quality conscious environment with testing and inspection from raw material to finished cables.

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