Emergency and standby power system

29/10/2011 by Leave a Comment

When design the electrical installation and electric power for building or factory,the main objective that we need to focus is about emergency and standby electric power systems.The main reason  is the about safety of building occupants following a power outage.

When danger or disaster happened at building or factory such as fire,heavy smoke, chemical hazard,tsunami or earthquake,the emergency procedure backup power system is important and it required for evacuation from the building.

At the very least, emergency and standby power systems should provide lighting to assure the safe evacuation and  panic-free exit of people from the building. read more

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Light Bulb

30/01/2011 by 2 Comments

This device is very useful in our life.Without it,we stay in the dark…so be thanks to Thomas Alva Edison & Joseph Swan because their effort and development of a Light Bulb.We can found a bulbs any area likes home,office,factory,shopping complex and many more places.

The basic function of light bulb is electric power supply will make the filament in a enclosed glass shell turn to heater concept and it become hot and reaction with that is either filled or evacuated with an inert gas.Then the bulb will light on.

Now the people more interested about ENERGY SAVING BULBS.It can reduce our electricity cost and have a long life span from 1 year until 3 years.Now in market have a many choice of ENERGY SAVING BULBS.This type can light same brightness like others bulb in low WATT consumption. read more

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The 62% method of earthing measurement

04/10/2010 by 1 Comment

Earthing or Grounding measurement resistance have a several technique and method applicable with suitable situation and location for earthing chamber.

This time i want share about 62% method of earthing measurement that popular used by all electrician around the world to get earthing resistance for Substation,lightning arrestor,generator and others electrical equipment. read more

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Grounding resistance measurement

04/10/2010 by 2 Comments

Grounding or Earthing is the compulsory device for electrical installation.It’s the end point for electrical residue when leakage happen on electrical circuit or installation.

Good grounding can make a different of current balancing in phase during electrical leakage and Residual Current Circuit Breaker will activate if current leakage value over the sensitivity.( 10 mA,100 mA,30 mA,300 mA).

To get a good grounding,we should make sure the resistance is minimum.For the best resistance value is “0 ohm” or less than 5 ohm.That why grounding resistance measurement is important because we need to ensure our grounding is good. read more

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