Supreme - Transmission Line, Distribution Line, Substation, Pole Line and Telecom Line Hardware

Supreme was established in 1970 as a steel-based engineering unit with an annual capacity of 3,600mt. It has since diversified and grown into a leading multi-product engineering unit having a combined annual capacity of 25,000mt, producing galvanized steel fabrications and a large range of aluminium, copper, plastic and rubber accessories to cater to the global requirements for tower, hardware and accessories for power transmission and distribution lines.

Power transmission and distribution line accessories and products

Supreme offers a comprehensive range of power transmission and distribution line accessories and products from 0.4KV to 400KV which are subjected to stringent quality control checks both at manufacturing and before shipment.

Since its inception, Supreme had a clear focus on the export market. The company started exporting its products in 1972 and now ships to more than 50 countries around the world.

The company is certified as per ISO 9001:2000 guidelines, as well as per ISO 14001:2004 for its environmental management system. Supreme’s product range includes:

• LV and MV ABC accessories
• LV MV and EHV insulators-hardware and conductor accessories
• Earthwire OPGW and ADSS fibre optic accessories
• Line conductor, OPGW and earthwire motion controlled fittings
• Helical accessories
• Industrial fasteners
• Sub-station structure, clamps and connectors
• Transmission and telecom structures
• Rigging hardware

Customised transmission and distribution line accessories

Our roots are Indian but our pursuits are global. We have made the successful transition from supplying products as per customers' designs and drawings to offering customized, integrated solutions.

The company has the design capability to reduce functional requirements to specific shapes and dimensions. It has facilities in-house and access to third party labs to validate the functional integrity of its products. We can also simulate many field conditions in-house to validate the compatibility of the design.

In-house testing and process control

Supreme products are routinely subjected to rigorous pre and post manufacturing control tests and process control. In-house tests set-ups consists of physical, chemical and vibration testing laboratories, which are well equipped with state-of-the-art technology and equipment to carry out tests on the products in accordance with international standards and customers' specifications.

Supreme’s in-house mechanical testing facilities are equipped with a vertical UTS machine with a 60t and 20t capacity and a 10m versatile horizontal test bed to carry out tests of tensile strength, slip tests, hardness tests, elongation tests, wedge load tests and many more.

The company’s chemical test facilities are equipped with a muffle furnace with thermostatic control, Strohlein apparatus and other equipment to carry out chemical analysis of different elements of ferrous and non-ferrous alloys, dip tests for the uniformity of zinc coating, etc.

Equipped with a high voltage transformer 0KV-12 KV/400A, high current injecting transformers and an electrical resistance test set up, Supreme’s electrical laboratory can perform a wide range of electrical tests.

Supreme also offers a damper vibration laboratory suitable for a large variety of tests, including fatigue and damper efficiency tests.

Independent third party testing and certification laboratories

In addition to our in-house test set up, we are affiliated with the following certified laboratories (NABL) having EN 45001/ISO Guide 25 accreditation for special and critical type tests on power equipment:

• EGU-HV Laboratory, Prague, Czechoslovakia
• Central Power Research Institute (CPRI), Bangalore
• Indian Institute of Science (IISc), Bangalore
• National Test House (NTH), Alipore, Kolkata
• Regional Testing Centre (RTC), Kolkata
• National Small Industries Corporation (NSIC), Kolkata
• Jadavpur University, Kolkata
• Indian Institute of Technology (IIT), Mumbai
• Electronics Regional Test Laboratory (ERTL), Kolkata
• Elect. Research and Development Authority (ERDA), Vadodara

Supreme is continuously expanding and has entered strategic joint ventures in fields such as EPC construction, software development, transformers, conductors and polymers.