Plastics
in the Electrical Industries
Plastics
make progress possible, making electrical goods safer, lighter, more
attractive, quieter, more environment friendly and durable.
Introduction
The Indian power sector is a core component of the Indian infrastructure
and its expansion is essential for the success of economic liberalization
of India. India, which inherited a little more than 1,300 MW at the
time of its independence in 1947, today has an installed generating
capacity of more than 110,000 MW. Despite this achievement, ever increasing
power demand of the country’s vibrant economy has led to a widening
gap between the supply and demand. The Indian Government has therefore,
rightly put emphasis on this sector and plans to add 1,00,000 MW of
new installed generating capacity in the next decade, i.e., up to
2012. In other words, it means, addition of 10,000 MW every year on
an average. Several inter-state and inter-regional transmission lines
exist to facilitate the integrated operation of the state system with
the region. The Regional Power Grids in the Northern, Western, Southern,
Eastern and North- Eastern Regions of the country were established
for optimum utilization of the unevenly distributed power resources
in the country by facilitating intra-regional and inter-regional power
exchanges to the extent feasible depending upon day-to-day power availability
and load conditions.“Tansformers, switchgears and high voltage
electrical machines use large quantities of engineering plastics (thermosets)
such as epoxies, polyesters, FRPs (SMC & DMC), silicones, flouro
polymers and high temperature resistance tapes including large quantiers
of impregnating resins” but this artical largely deals on the
kinds of plastics used in consumer products.
Plastics and Electrical Goods
Electricity powers almost every aspect of our lives, at home
and in our jobs, at work and at play. And everywhere that we find
electricity, we also find plastics. In the kitchen, there are the
labour-saving devices that we would not be without; washing machines,
microwave ovens, kettles etc. In the living room there is the television,
video or music system, while at work, we use a computer, fax machine,
telephone etc. Plastics make progress possible, making electrical
goods safer, lighter, more attractive, quieter, more environment friendly
and durable. Plastics fall into two broad categories: thermoplastics
such as polyethylene, which can be repeatedly melted down and re-moulded
and thermosets such as urea formaldehyde which, once set, cannot be
re-melted, making them suitable for applications where heat is encountered.
Brown Goods
The stylish appearance of modern VCRs, CD players, DVD
systems, personal computers and TV sets owe much to the design freedom
granted by plastics.
White Goods
Plastics make hygienic and attractive knobs, handles
and door facings on cookers; liners, handles and internal fittings
on refrigerators and freezers; housings and tops on washing machines
and dishwashers.
Small White Goods
Safety is a key requirement for goods such as
food processors, toasters, kettles and hairdryers - and plastics make
it possible. Tools......
....contd.
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