Fire Extinguishers

 

Class of Fire
CLASS	Type of Fire	Type of Fire Extinguisher
Class A	Fires involving Paper, Wood, Textile, Packing materials and the like.	Water, foam, ABC dry power and halocarbons.
Class B	Fires involving Oil, Petrol, Solvent, Grease, Paints, Celluloid and the like.	Foam, dry powder, clean agent and carbon dioxide extinguishers
Class C	Fires involving Electrical Hazards, Motor Vehicle Gaseous substance under pressure.	Dry powder, clean agent and carbon dioxide extinguishers
Class D	Fires involving Chemicals, Metal and active like Magnesium ,titanium	Extinguishers with special dry powder for metal tires

Area covered by Fire Extinguisher (NBC)
Type of Fire Extinguishers	Coverage (Floor) Area
Water/ Sand Bucket	100 sq.mt.
Sprinklers	6 sq.mt.
Extinguishers (9 Liter)	600 sq.mt.
Heat Detectors	16 sq.mt.
Hydrant Riser (Outlet 100 mm dia with landing valve and First aid hose reel)	930 sq.mt
Smoke Detectors	50 sq.mt.

Different Types of Fire Extinguishers for Different Classes of Fires ( IS 2190 )
Type of Extinguisher	IS	Type of Fires
		Class A	Class B	Class C	Class D
water type (gas cartridge)	IS 940 , IS 13385	S	NS	NS	NS
water type (stored pressure)	IS 6234	S	NS	NS	NS
mechanical foam type (gas cartridge)	IS 10204, IS 13386	S	S	NS	NS
mechanical foam type (stored pressure)	IS 14951,IS 15397	S	S	NS	NS
dry powder type (stored pressure)	IS 13849	S	S	S	NS
dry powder type (gas cartridge)	IS 2171 , IS 10658	S	S	S	NS
dry powder type for metal fires	IS 11833	NS	NS	NS	S
carbon dioxide type	IS 2878, IS 8149	NS	S	S	NS
clean agent gas type	IS 15683	S	S	S	NS
halon 1211 type	IS 4862 , IS 11108	S	S	S	NS

 

Area covered by Fire Extinguisher (NBC)
Type of Fire Extinguishers	Coverage (Floor) Area
Water/ Sand Bucket	100 sq.mt.
Sprinklers	6 sq.mt.
Extinguishers (9 Liter)	600 sq.mt.
Heat Detectors	16 sq.mt.
Hydrant Riser (Outlet 100 mm dia with landing valve and First aid hose reel)	930 sq.mt
Smoke Detectors	50 sq.mt.

Different Types of Fire Extinguishers for Different Classes of Fires ( IS 2190 )
Type of Extinguisher	IS	Type of Fires
		Class A	Class B	Class C	Class D
water type (gas cartridge)	IS 940 , IS 13385	S	NS	NS	NS
water type (stored pressure)	IS 6234	S	NS	NS	NS
mechanical foam type (gas cartridge)	IS 10204, IS 13386	S	S	NS	NS
mechanical foam type (stored pressure)	IS 14951,IS 15397	S	S	NS	NS
dry powder type (stored pressure)	IS 13849	S	S	S	NS
dry powder type (gas cartridge)	IS 2171 , IS 10658	S	S	S	NS
dry powder type for metal fires	IS 11833	NS	NS	NS	S
carbon dioxide type	IS 2878, IS 8149	NS	S	S	NS
clean agent gas type	IS 15683	S	S	S	NS
halon 1211 type	IS 4862 , IS 11108	S	S	S	NS

 

Area covered by Fire Extinguisher (NBC)
Type of Fire Extinguishers	Coverage (Floor) Area
Water/ Sand Bucket	100 sq.mt.
Sprinklers	6 sq.mt.
Extinguishers (9 Liter)	600 sq.mt.
Heat Detectors	16 sq.mt.
Hydrant Riser (Outlet 100 mm dia with landing valve and First aid hose reel)	930 sq.mt
Smoke Detectors	50 sq.mt.

Different Types of Fire Extinguishers for Different Classes of Fires ( IS 2190 )
Type of Extinguisher	IS	Type of Fires
		Class A	Class B	Class C	Class D
water type (gas cartridge)	IS 940 , IS 13385	S	NS	NS	NS
water type (stored pressure)	IS 6234	S	NS	NS	NS
mechanical foam type (gas cartridge)	IS 10204, IS 13386	S	S	NS	NS
mechanical foam type (stored pressure)	IS 14951,IS 15397	S	S	NS	NS
dry powder type (stored pressure)	IS 13849	S	S	S	NS
dry powder type (gas cartridge)	IS 2171 , IS 10658	S	S	S	NS
dry powder type for metal fires	IS 11833	NS	NS	NS	S
carbon dioxide type	IS 2878, IS 8149	NS	S	S	NS
clean agent gas type	IS 15683	S	S	S	NS
halon 1211 type	IS 4862 , IS 11108	S	S	S	NS

Types of Ammeter

Moving-coil

Moving magnet

Hot Wire 

Digital

Integrating

Picoammeter

List of electrical and electronic measuring equipment

Electrical and electronic measuring equipment

Metering Ammeter Meter, Capacitance meter, Distortionmeter, Electricity meter, Frequency counter, Galvanometer,LCR meter,Microwave power meterMultimeter,Megohmmeter, Ohmmete, preak meterPeak, programme meter, Psophometer , Q meterTime-domain, reflectometer,Time-to-digital, converterTransistor, testerTube tester, Wattmeter,Voltmeter,VU meter

Analysis Bus analyzerLogic, analyzerNetwork, analyzerOscilloscopeSignal, analyzerSpectrum, analyzerWaveform, monitorVectorscopeVideoscope

Generation Arbitrary waveform generator, Digital pattern generator, Function generator, Sweep generator, Signal generator, Video-signal generator

Ammeter Measures current

Capacitance meter Measures the capacitance of a component

Current clamp Measures current without physical connection

Curve tracer Applies swept signals to a device and allows display of the response

Cos Phi Meter Measures the power factor

Distortionmeter Measures the distortion added to a circuit

Electricity meter Measures the amount of energy dissipated

ESR meter Measures the equivalent series resistance of capacitors

Frequency counter Measures the frequency of the current

Leakage tester Measures leakage across the plates of a capacitor

LCR meter Measures the inductance, capacitance and resistance of a component

Megger tester Measures Resistance Of An Winding Of Motor Or Generator And Measures Earthing's Resistance

Microwave power meter Measures power at microwave frequencies

Multimeter General purpose instrument measures voltage, current and resistance (and sometimes other quantities as well)

Network analyzer Measures network parameters

Ohmmeter Measures the resistance of a component

Oscilloscope Displays waveform of a signal, allows measurement of frequency, timing, peak excursion, offset, ...

Psophometer Measures AF signal level and noise

Q meter Measures Q factor of the RF circuits

Signal analyzer Measures both the amplitude and the modulation of a RF signal

Signal generator Generates signals for testing purposes

Spectrum analyser Displays frequency spectrum

Sweep generator Creates constant-amplitude variable frequency sine waves to test frequency response

Transistor tester Tests transistors

Tube tester Tests vacuum tubes (triode, tetrode etc.)

Wattmeter Measures the power

Vectorscope Displays the phase of the colors in color TV

Video signal generator Generates video signal for testing purposes

Voltmeter Measures the potential difference between two points in a circuit. (Includes: DVM and VTVM)

VU meter Measures the level of AF signals in Volume units

CRO(Cathode Ray Ocylocop) Check transistor

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