Crosslinked Polyethylene insulated Thermoplastic sheathed cables for working voltages from 66kV up to and including 220 kV
IS code: IS 7098 (Part 3): 1993
Description
IS 7098 (Part 3): 1993 is an Indian Standard that provides specifications for cross-linked polyethylene (XLPE) insulated thermoplastic sheathed cables designed for working voltages ranging from 66 kV up to and including 220 kV. These cables are used in high-voltage electrical transmission and distribution systems.
Some of the key aspects covered by IS 7098 (Part 3): 1993 include:
1. Scope:
The standard defines the scope of its application, which is to provide requirements for XLPE insulated thermoplastic sheathed cables used for high-voltage applications within the specified voltage range.
2. Materials and Composition:
The standard specifies the materials used in the construction of these cables, including the type of XLPE insulation and thermoplastic sheathing materials.
3. Classification:
It may classify cables based on their design, type, and voltage ratings to help identify different cable types and applications.
4. Design and Construction:
It outlines the design and construction requirements for the cables, including the arrangement of conductors, insulation thickness, shielding, and sheath design.
5. Electrical Characteristics:
Specifications for electrical properties, such as capacitance, dielectric loss, and partial discharge characteristics, may be included.
Test Required for IS 7098 (Part 3): 1993
Dimensions
Annealing Test (for Copper wires)
Conductor Resistance
Tensile Test (before ageing) on Insulation and Sheath
Shrinkage Test
Hot Deformation
Heat Shock Test
HV Test
Flammability Test
Conclusions:
If a product falls within the purview of the BIS Conformity Assessment Scheme, it is mandatory for manufacturers, importers, and foreign entities to acquire BIS ISI Certification. The Bureau reserves the right to revoke the license in cases where the product does not meet the certification prerequisites.
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