Quality Control

In manufacturing of cables, intelligent efforts and standard laid down operating procedures at each and every stage are followed to achieve quality for quality end products, control starts from proper design of the product. All raw materials are selected carefully and only materials of high quality are used in production. Having done this stage wise inspection is done to ensure conformity with the requirements of relevant Indian/international standards where these apply.

 Stage Wise Inspection :-
 Wire Drawing


 Wire diameter
 Quality of joints in the wire
 Stranding of Wires :  Quality of joints in the wire
 Compaction of conductor
 Shape of Conductor
 Resistance of Conductor
 Direction of Lay
 Insulation :  Dimension over Insulation
 Thickness of Insulation
 Surface defects
 Curing :  Hot set test, Tensile strength & elongation (for XLPE  Insulation)
 Laying Up :  Sequence of Cores
 Direction of lay
 Diameter over laid up cores
 Inner Sheath :  Thickness of Sheath
 Diameter over Sheath
 Surface Uniformity
 Armouring :  Diameter of Wires/
 Dimensions of Strips
 Direction of lay
 Quality of Joints of Wires
 Outer Sheath :  Thickness of Sheath
 Diameter over Sheath
 Tightness of Sheath
 Ovality, Eccentricity, Porosity, Embossing

The tests on cables have been classified broadly in four categories as follows:

 Routine Tests:

Tests carried out on each Cable to check the requirements which are likely to vary during production.

 Type Tests:

Tests carried out to prove conformity with the specification. These are intended to prove the general qualities and design of a given type of cable.

 Acceptance Tests:

Tests carried out on samples taken from a lot for the purpose of acceptance of the lot.

 Optional Tests:

Special tests to be carried out when required by agreement between the purchaser and the manufacturer.
Special tests required for FRLS Cables can also be carried out at our works i.e Halogen gas generation test to IEC-754 (Part-1), Smoke generation test to ASTMD-2843, Oxygen index test and Temperature index test to ASTMD-2863, Flammability test to (1) IEC-332-3, Flame resistance test to IEEE-383.

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