Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

Pls say , how we calculate lux / sq.ft, which formula used
for calculation

Answer Posted / krishna pathak

To Calculate the no. of fittings in a room,
the formula is
N=No. of Light fittings required= A x E/(Lxuxd.f)
.'. E= N x (Lxuxd.f)/A
where L=> Lumen o/p
A=> Area (m^2)
E=> Illumination or Lux levels (in lux)
u=> coefficient of utilization
d.f=> Depreciation Factor
For Detail study refer Philips,G.E(lighting)& Artlite
Catalogues.

Is This Answer Correct ?    24 Yes 9 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Draw the vector diagram and condition for the following: 1) Dyn1 2) Ynd0 3) YnYn0

3733


what is static frequency converter?what is the function...of sfc...?

2296


what is lrs tank water resistance.

2595


How to Decide(calculate) Bush bar size for copper and aluminiam ?

2183


what is per unit calculation?looking for simple and strong explanation thk u

2618


WHY EARTHING NOT NEEDED IN BATTERY IN SUBSTATION

2021


anyone please send transformer parameter design formulas & details of tap changer ? plz i have interview this week its more helpful for me ?

1920


What are the criteria shall be considers for sizing Fuse and MCB? If the rated current is 10Amps what should be the fuse size / MCB Size?

1706


what is smartµ grid technology?under coal gassification?

2020


I have 4 busbar of 1000 ampere. we use 4 busbar to make 4000 ampere in one phase.my problem is that when we applied 60% load on that then busbar produced high noise.what is the reason of that and how can i minimize that noise.

1777


Earth bits close or open. Which is correct

2029


why use phase displacement in transformer.and effect of phase displacement on transformer

2915


hi I have done 3 yrs diploma in electrical engg after 10+2. I have 16 years of work experience into design proposals sales and engg application development in LV/MV swithcgear and sub station automation field. I want to apply for immigration to new zealand but I am not sure whether I qualify or not since I dont have a degree. Can anyone advice? Thanks Riz

2344


why effective resistance should be more than static resistance in transmission line?

2155


Draw the vector diagramme for Asynchronous Induction Generator at noload,half load and fullload.

2042