KASA TECHNOLOGIES LIMITED (Channel Partners of ERICO , USA) COMPANY PROFILE

KASA TECHNOLOGIES LIMITED Channel Partners

Facilities Protection Solutions covering: Direct Strike Lightning Protection Transient and Surge Protection Grounding Systems Plus the DESIGN of the installed system

Introduction KASA has been promoted by Mr.K.P.Srivastava, an Engineer by qualification and profession. The Company started its operations offering infrastructure supply & support services for electrical projects and succeeded in obtaining orders from some leading telecom companies. The Company continues evaluating new business avenues with greater scope of growth and services for solutions to the industry.

Company Policy “It will be a continuous endeavor of the company to provide world class state of the art products and services to its valued customers and give them value for money in real time. The management, business partners and the employees of the company will have a un-daunted focus in making this endeavor a reality.”

The Search for Technical Excellence KASA, in its endeavor to achieve technical superiority in their field, became Channel Partners of Erico of USA who are world leaders in state of the art Earthing, Lightning Protection, Grounding solutions and inventors of Exothermic welding called Cad Weld. KASA represents Erico in India as their Channel Partners as well as distributors for their products.

Life time Guarantee We are the only Company which guarantees constant Ohmic value over the entire life cycle (30 to 35 years) of the grounding system installed by us.

Services Evaluation of Earthing and Lightning protection needs. Installation at sites. Consultancy for Earthing and Electrical projects.

We serve Telecom Industry Power/Energy Industry Defence Engineering Industry Petroleum Industry IT Engineering/Architecture/Project consulting

Some of Our Customers Airtel IDEA Cellular Vodafone Aircel Tata Teleservices Ericsson Wipro Siemens Limited HCL DRDO Cabinet Secretariat Reliance Energy (BSES) Reliance energy – Dahanu Power Plant Jay Pee (Hydropower Projects) BEL ThyssenKrupp (Overseas) Jindal

Desirable Grounding System Characteristics Must comply with all local and national codes Low in resistance and impedance Mechanically robust and reliable Resistant to corrosion Life expectancy equal to that of the installation Cost effective A poor grounding system is worse than no grounding system. Keep in mind that codes establish minimum requirements only and are not design guides or installation manuals. Engineers often specify requirements that far exceed the minimum required by code. The grounding system must not only exhibit a low impedance at 60 HZ, but also a low impedance at the high frequencies encountered during lightning and surge events. The grounding components should able to withstand electromagnetic forces as well as resist tampering by the general public. Connectors should not be affected by lawn equipment or people trying to loosen bolted connectors either on purpose or accidentally. Corrosion is the enemy of all grounding components. The selection of materials is critical. Grounding components are located underground, in cement, or behind walls. Inspection of these elements is not easy and there are no warning indications when a conductor has been cut, a connection has loosened, or a ground rod has corroded. Installing products that will never need to be maintained provides the greatest degree of performance and safety. Grounding systems can be installed using products ranging from cheap to exotically expensive. A cost effective system will use the proper product for the application. You would not walk into a substation that had a sign reading “This Substation Is Not Grounded” (hopefully). However, if no such warning exists in the same substation and the connections have increase in resistance or the ground rods corroded, people are at increased risk because they have a false sense of security. Workers in the electrical industry rely on the performance of the grounding system more than the rest of us.

Components of the Grounding System – The “Grounding Chain” Ground Electrode Conductor Grounding Connector Grounding Electrode The Soil Location and Function of Grounding System Components Most ERICO people are familiar with the Grounding Chain. Like a chain, the grounding system is only as strong as its weakest link. Failure of any component renders the entire system ineffective and unable to perform the important functions outlined on the previous slide. They include: Grounding Conductor – typically made from copper, it is available in stranded or solid form and with or without a tin coating. Solid conductor has less surface area than stranded making it better suited for corrosive soils. Stranded conductor is more flexible and easier to work with in larger sizes. Tin plating helps to prevent galvanic corrosion of nearby underground steel. Copperweld or copper coated steel conductor is sometimes used in areas prone to theft. The grounding connector attaches the conductor to the electrode. Brazing, mechanical, and exothermic connections are available. A discussion of the differences between the different types is a separate presentation. The grounding electrode is the “thing” we put in the ground to provide the physical attachment to the earth. Natural electrodes are intrinsic to a facility and include copper water pipe, building steel, and the rebar found in concrete foundations. “Made” electrodes are installed specifically to improve the grounding system performance and include plates, mesh, counterpoise wires, and ground rods. The ground rod is the most commonly installed made electrode and the subject of this presentation. The soil plays a significant role in the final resistance of the grounding system. The conductivity of the soil, measured in ohm-centimeters or ohm-meters (not ohms per centimeter) varies with soil type, moisture content, temperature, and the presence of electrolytes. Soil resistivty is like a golf score, the lower the better. However, the lower the resistivity, the more corrosive the soil tends to be so there is a trade off. The grounding components are located in the harsh underground environment. Most of the time, they will sit there and do nothing. Then, a fault will occur or a lightning strike or surge will require dissipation. At that point, the components will be expected to carry large amounts of current and perform like new.

GROUND RODS (Electrodes) Material Choices

Comparison of life expectancy Material Selection – Earth Rod Comparison of life expectancy Galvanised steel rods are one of the cheapest electrodes available. However, they are not the most cost effective since they have a relatively short service life. Solid copper & stainless steel rods have a long service life. However, they are considerably more expensive than galvanized steel rods. In addition to this, solid copper rods are not suited to deep driving or even driving short lengths into hard ground, without bending. As a compromise, steel cored ground rods, clad in a copper or stainless steel sheath were developed. These ground rods are much less expensive than their solid counterparts. They are capable of being deep driven. However, the sheath of this rod type has been known to slip or tear, particularly the copper version. Once this sheath has been damaged, the integrity of the entire electrode is at risk. 1

GROUND RODS (Electrodes) International standards require a minimum of 0.25 mm copper on a Copperbonded rod ERITECH bonded rod Requirement of BS7430; UL467 Copper specimens buried in 43 soil types for 8-13 yrs Calculated average penetration in 30 years would be 0.17 mm in 41 of the 43 different soils Based on this, 0.25 mm established as minimum Service Life – In Excess Of 30 Years A number of international standards (including BS7430 and UL467) specify a requirement for 0.25 mm (10 mil) minimum thickness of copper deposited over the steel core. This was determined by a series of American tests in which copper specimens were buried in 43 different soils for 8 to 13 years. By measuring weight loss, the average penetration per year was calculated. Using these figures, it was determined that the average penetration in 30 years would be 0.17 mm (6.7 mil) in 41 of the 43 different soils. Based on these tests, 0.25 mm (10 mil) was established as the minimum thickness of copper over the steel. This insures the ground rod will have a life expectancy in most soils of over 30 years. Typical sheathed rod 1

THANK YOU KASA TECHNOLOGIES LIMITED 252B 3rd FLOOR , SANT NAGAR , EAST OF KAILASH , NEW DELHI – 110065. PHONE :- 011 -46516961 / 64. FAX :- 011 – 46516965. EMAIL :- corpoffice@kasatechno.com WEBSITE :- www.kasatechno.com