How can I calculate the require lumen of a room. If I use
Tube Light (40 W), Or 100 W incandescent lamp. Please give
detail answer.
As per room we didnt have any standard lumen .As per our
eye seeing min 200 lux after that we sholud keep as per our
requirement based on application
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what is the calculation formula for motor starting torque,running torque, running torque.
Which standard we are following earthing resistance test
CONTACTORS ARE MADE UP OF WHICH MATERIAL?
What is the power ratio between power in Star and Delta circuit?
how to find the resistance
A 3 phase motor operating off 415V system is developing 20Kw at an efficiency of 0.77 and power factor of 0.73. determine:- a)the line current. b)the phase current if winding are delta connected. c)the phase voltage if winding are star connected.
how do you measure earth leakages in 3phase wires?
What is the use of choke in tube light?
what is the difference between Central Battery System and UPS in applications and uses? and why UPS suitable for Computers and central battery for emergency lighting?
what is the formula for calculation of sac?
What is reactance, reluctance,capistance, pls give answeer in hinglish and be simply Jo asani we smajh m aa jaye
Please clarify, 1. Is it required to lay two runs of GI wire along with Armoured LT cable if it is laid between one big mains (63Amps TPN SDF) to small main (32A TPN SDF) with proper glanding termination? 2. If the armoured cable with proper glanding is laid from DB to CNC machine, is it required to run two runs of body earthing to the Machine from DB? 3.If the armoured cable with proper glanding is laid from Substation to Hangar, distance is approx. 100 mtrs, is it required to do earthing at shop area though the primary termination at substation is earthed through gland.
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