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Planning of Electrical Installation
The design and planning of an electrical installation involve consideration of all prevailing conditions and is usually guided by the requirement of the consumer. A competent Electrical Engineer should take the responsibility of detailed designing and planning to meet the requirement of various functional needs, effi ciency, economy, energy conservation, aesthetics, appropriate technology, safety and avoidance of possible fi re hazards. Some of the guiding factors are: (a) Adverse conditions like humidity, high/low ambient temperature, pollution, heat, dust, fl ame etc. that are likely to affect the installation.
(b) Possible presence of infl ammable or explosive vapour, gas, liquid. (c) The degree of mechanical and electrical protection necessary. (d) The need of uninterrupted electrical supply, which requires adequate standby system, including generating sets and UPS back up.
(e) Flexibility for future modifi cation or extension. (f) Energy cost, which requires proper examination of local electrical tariff. (g) Energy conservation measures. (h) Need of building management system for effi ciency and energy cost saving. (i) Relative cost of various alternative methods. (j) Safety aspects including provision of built in safety measures. (k) Specifi c measures for avoidance of possible fi re hazards. (l) Use of appropriate technology.
(m) Quality control based on appropriate design and use of quality materials and equipments.
(n) Aesthetics and co-ordination with Architectural and Structural requirement. (o) Taking into account future growth of load. (p) Need to provide related space/ conduits/ channels/ cables/ wire for services like: Communication cables, computer cabling, fi re alarm cabling, UPS cabling etc. CCTV/ Security system cables etc.
(q) Reducing operation and maintenance cost with appropriate use of automation, sensors, remote control, microprocessor control for controlling various electrical and mechanical activities.
8(r) Providing an effi cient power distribution system to meet the various power requirements of equipments like: Computers. ACs.
Pumps. Lifts. Specifi c equipments. Ventilation Plant. AC Plant. etc.