Architectural Services - II

Introduction – Terminology and architectural symbols (as per NBC/NEC) for electric installations in buildings. Need to generate and save electricity, transmission and distribution of electricity (single and three phases), procuring service connection. Familiarization to various lighting accessories, wires and cables, metering, distribution panels / boards etc. for single and three phase supply. Guidelines for installation of fittings. Design of simple electrical circuits – Introduction to simple light and fan circuits. System of connection of appliances and accessories e.g. series and parallel connection, joint box system, looping-in system. Systems of wiring – Basic considerations. Various types of internal wiring systems e.g. cleat, casing and capping, batten and conduit (surface & concealed). Protection of electrical installation and human life – Basic considerations. Protection against excess current, short circuit earth fault and protection against electric shock. Introduction to various types of protection devices e.g. switches, fuses and circuit breakers. Need for earthing of domestic fittings and appliances, earthing and its relation with soil resistivity, earth electrodes, earth wires. Load assessment and selection of appropriate cross section of the conductor. SECTION – B, ILLUMINATION

Introduction – Terminology and unit. Light and its characteristics – scattering, propagation, transmission, reflection, absorption, refraction and dispersion of light. Electromagnetic spectrum and visible radiation. Illumination – Types of illumination schemes e.g. Ambient, Task, Focal and Decorative etc. Design considerations for illumination Schemes. Methods for lighting calculation – Watts per square meter, Light flux and Point to point method. Sources of light (Electrical)– Familiarization and understanding ofelectrical sources of light e.g. Thermal radiators - Incandescent,Halogen. Discharge lamps– Low pressure (fluorescent, compact fluorescent, sodium, cold cathode neon), High pressure (mercury, metal halide, sodium). New technologies - LED, Fiberoptics. Luminaries – Types of Luminaries – Indirect, Semi-indirect, General diffusing, Semi-direct and Direct. SECTION – C, APPLICATION

The understanding of electrical needs for individual spaces e.g. Living room, Dining room, Bed room, Kitchen, Toilet, Staircases, and Corridors etc. The electrical layout drawing for a residence.

Familiarization to types of electrical luminaries available in market, manufactured by various brands e.g. Recessed mounted luminaries, Spot / Projectors, Surface mounted luminaries, Decorative luminaries, Pendant luminaries, Free-floor-standing luminaries, Up lights, Trunking lighting systens, Down Lights.