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60 Cards in this Set
- Front
- Back
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load of 1 outlet
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90 watts
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wall outlet mounting height
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300 mm affl, above tables: 900mm affl
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standard mounting height of switches
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1.35-1.4m
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branch circuits should be able to supply a load of
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30 watts per sqm
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1 coulomb
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6.25 x 10^18 electrona
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number of outleta in a circuit
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6 for 15amos, 8 for 20 amps
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1 horsepower
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746 watts
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heat detector rating inbordinary rooms, in kitchens
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135f and 190-200f
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fire suppression system for rooms with sensitive equipment. ex. server room
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fm-200
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aircon filtser for hospitals
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hepa filter or high efficiency particulated filter
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accu
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air cooled condensing unit
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ton of refrigeration
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12000BTU/hr = 3.517kW = 4.7 hp
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comfortable cooling range
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68-74 f = 20-23.33 c
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covert c to f
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f = c x 9/5 + 32
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dumbwaiter details
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max 277kg max 1.2ht max 3 storeys
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escalator details
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w= 32 or 48 in. 30deg (35 max as per nbc) incline speed= 90 & 120 fpm
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escalator landing length
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4' 8' 10'
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vermaport details/ moving sidewalk
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0-5 deg incline 27"&29" 300-400' max length considered moving ramp id at least 15 deg
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vermaport details/ moving sidewalk
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0-5 deg incline 27"&29" 300-400' max length considered moving ramp id at least 15 deg
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unit of light or luminius flux
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lumens
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unit of density of light
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footcandle = 10.76lux
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unit of light intensity
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candlepower candela
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brightness
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footlambert
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filament lamps
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incandescent, tungsten-halogen
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gaseous discharge
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fluorescent, neon vapor
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high intensity discharge
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mercury vapor, metal halide, hps lps
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dieect lighting
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99-100% directed downwards
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semi-direct lighting
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60-90% directed downwards 10-40% directed upwards
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general diffuse or dorect-indirect lighting
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50-50%
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semi indirect lightinf
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60-90% directed upwards 10-40% directed downwards
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indirect lighting
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90-100% directed upwards
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casual work fc lux
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10-30 fc x10.76 for lux
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moderate work fc lux
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30-50 fc x 10.76 lux
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prolonged work fc lux
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50-100 fc x 10.76 lux
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precision work fc lux
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100-150 fc x 10.76 lux
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fine precision work
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150-200 fc x 10.76 lux
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normal hearing range
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20hz to 20khz
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speed of sound
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344m/s 1240kph 770mi/h
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t wire
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thermoplastic
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tw wire
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moisture resistant thermoplastic
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thhn
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heat resistant thermoplastic nylon insulation
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thw
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thermopladtic heat reaistant moisture resistant
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thwn
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moisture and heat resistabt thermoplastic nylon insulation
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ac cable
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armored cable
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mc cable
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metal clad cable
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mi cable
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mineral insulated
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nm cable
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non metallic sheathed cable "romex"
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snm cable
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shielded non metallic cable
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se or use cable
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service entrance or undergeound service entrance
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tc cable
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power and control tray cable
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fc cable
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flat cable assemblies
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fcc cable
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flat conductor cable
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mv cable
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medium voltage cable
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limit wiring length to __ mts to avoid voltage drop
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35m
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demand load factor
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0.80
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light outlet load
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100w
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f 20 t 12 ww
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fluoreacent 20 watts tubular 12/8" diameter warm white
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h38 mp 100dx
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mercury lamp #38 mp lamp ballast numer 100 watts dx phosphors
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mounting height ratio =
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spacing/mounting heigt
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normal hearing range
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20hz to 20khz
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