Answer / sudheer

we can calculate lux level by lux meter.

Total lumens required= A . E . D/U where,
A = surface area(sq.m)
E= illumination(lm/sq.m)
D= dipriciation factor
U= co-efficient of utilization

Answer / 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.

Answer / aarya

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.

Answer / uday kulkarni

Lux = Lumens/sq.ft.

for one are the formula will be -

Area in sq. mtrs X Required Lux
No. of fixtures = -------------------------------
Lumens O/p of fixture X U.F X D.F

Uday Kulkarni

Answer / chandrakant zingade

Per Sq.ft Lux = 1 x Total Lux / Total area in Sq.ft.

fundamentals of transformers.

5 Answers   Adani,

what is different between earthing and grounding for a electrical eqipment ?

2 Answers   BARC, Omega Maritime,

what is the reactance,capacitance & impedence electrical armoured & unarmored Cables.

0 Answers  

Do you know how to joint the H.T and L.T Cables?

23 Answers   KESC, MGVCL, Nokia, Oil Country Tubular, Power Control, SAGT, Siemens, Simco, Vivek Engineers,

what is cogging in motors?

1 Answers  

Differnce between Analog & Digital

1 Answers  

why substation rating interms of 11 multiples???like 11kv/33kv iis there any special reason???

5 Answers  

can wind-turbine effect on rain or on cloud's

1 Answers  

how to calculate EXCITATION VOLTAGE & CURRENT in ALTERNATOR

0 Answers  

How much depth we will take in 33kv sub station and why.

0 Answers  

How do determine the Size of a Droop Current Transfomer for Paralleling of Two Generators, Say I need a Droop Current transformer for a 600 kW generator need to be parallel with a 800 kW generator, etc.

2 Answers   JK Cement, MPPGCL Madhya Pradesh Power Generating Company Ltd, PNG Power,

what is circuit breaker in transfomer and where it used

0 Answers