Syllabus - Electrical Fire Safety (FT 703(A))

Fire Technology & Safety Engineering

Electrical Fire Safety (FT 703(A))

VII-Semester

MEASUREMENT AND ERROR

Accuracy & precision, Sensitivity, Linearity, Resolution, Hysteresis, Loading effect. Measurement of current, Voltage, Power and Impedance. DC & AC Ammeter, AC Voltmeter using Rectifier.

Transducer

Classification of Transducers, Strain Gauge, Displacement Transducer- LVDT (Linear Variable Differential Transformer), Temperature Transducer- RTD (Resistance Temperature Detector), Thermistor, Thermocouple, Piezo Electric Transducer, Optical Transducer- Photo emissive, Photo conductive, Photo Voltaic, Photo- diode Photo Transistor.

DIGITAL MEASUREMENT AND INSTRUMENT

Advantage of Digital instrument over Analog Instrument, DAC (Digital Analog Converter), Variable resistive type, R-2R ladder type, Binary ladder, Weighted Converter using Op-amp and Transistor, ADC (Analog to Digital Converter) - Ramp Technique, Dual slope.

FIRE DETECTION CUM ALARM SYSTEM

Detector and their design- Smoke- Ionization smoke detector, Photo electric smoke detector, Air sampling type smoke detectors, Heat- Rate compensation detectors, Rate of Rise Detector, Electronic Spot type heat detectors, Gas Sensing Fire Detectors, Radiant Energy Sensing Fire Detector- Flame detector, Spark/Ember Detector, Selection of Detector.

CONTROLLING ELECTRICAL FIRE HAZARDS

Over current protection- Relay Fuses, Circuit Breaker, Insulator, Earthing- Their method and applications, Lighting Phenomena & Protection, Cables & Wiring – Polyvinyl Chloride, Mineral Insulated, Silicon Rubber Cable, Cross linked Polyethylene.

ELECTRICAL CURRENT EFFECT IN THE HUMAN BODY

Introduction to electrical safety, Possibility of Getting Electric Shock, Effect of high current, AC shocks versus DC Shock, prevention from Electrical Fire.

Course Objective

To learn about measurement and error analysis are a fundamental part of experimental science and also learn about role of transducer in Instrument, Classification. To learn about analog to digital, digital to analog conversion techniques. To learn about the automatic fire detection type and their design. To understand the how to controlling electrical fire hazards. To Teach the effect of electric shocks on human body with its prevention.

Course Outcome

Students will be able to get the basic idea of measurement and the error associated with measurement and differentiate between the types of transducers available. Students will be able to analysis and design digital to analog converter and analog digital converter. Students will be able analyze and design automatic fire detection. Students will be able identity and prevent various electrical hazards. Students will be able to understand impact of electric current in human body.

Practicals

Reference Books

  • H.S. Kalsi, Electronics Instrument, TMH.

  • K. Sawhney, Instrumentation & Measurement, Dhanpat Rai & Co.

  • J. Maxwell Adams, Electrical Safety a Guide to the Causes and Prevention of Electrical Hazards, IEE Power series-19.

  • D.C. Winburn, Practical Electrical Safety, Marcal Dekker.

  • S.Rao, Prof. H.L. Saluja, Electrical Safety, Fire Safety Engineering and Safety Management.