you need
• tape, paper, pen, calculator
Guide
1
To calculate the total lamps using the following formula: P = pS / N, p -power specific lighting, measured in watts per square meter (average - 20 Watts per square meter), S - area of ​​the premises for which the lighting is calculated in square meters and N - the number of fixtures.
2
Example: To calculate the room, measure the length and width of the room.The results (say, 3.3 meters in length and 4.5 meters in width) between a multiply and get the area of ​​the room (3,3 × 4,4 = 14,85 square meters).Multiply this figure by 20 and divide it by the estimated number of lamps in the luminaire.For example, take 3 to 2 lamp bulb each.In this case, 14.85 multiply by 20 and divide by 6 (3 × 2 = 6).Yo
u get a result that means that in this case it is necessary to 6 lamps on 49.5 watts.
3
wattage may vary in each candle, sharing the room into several zones with different lighting.The total capacity of all lamps in the room must not be less than 297 watts.
4
In some cases it is necessary to take into account the specifics of the room, which makes for a calculation of the total power installed lamps.In this case, do the calculation, substituting the value of coefficient p in the table below: Type of room | Bulb | Halogen lamp | Fluorescent svetaDetskaya room .............. 30-85 .................... 70-85 .................... 15-22
Living ..................... 15-35 25-35 .................... .................... 7-10
Bedroom ...................... 10-25 .................... 15-17 .................... 4-7
Corridor ...................... .................... 10-20 10-13 .................... 3-5
Kitchen ........................ ............. 15-40....... 30-37 .................... 6-10
Bathroom ...............15-30 .................... .................... 22-27 6-9
pantry, garage .............. .................... 12-15 11-14 .................... 3-5Zdes to calculate, for example, the lighting in the kitchen (an area of ​​3 square meters) with fluorescent lamps take a coefficient p (average value of 9) from the table, multiply bykitchen area and if it is to stand trehrozhkovy lamp, is divided into three: 9 × 3/3 = 9 watts to each of the three installed in the lamp light.