Level of illuminance for industrial lighting

The amount of light required for any of these industrial applications will depend upon the nature of the work carried out. The luminescence required for manufacturing operations is given in table below.

The size of lamp required can be calculated by considering the area to be lighted, the illuminance required,depreciation factor, and the beam factor of the particular projector to be employed.

The level of illuminance is important to ensure workers can perform their task in comfortable condition and not effected to their eyesight such as become blurred or if more serious can cause a blind. read more

Drawing for electrical installation

For electrical installation,the main factor to completed the task with quality and in time,we must make sure the detail and comprehensive drawing are provided.

These drawing is important to show in clear view about position of electrical equipment,access for electrical cable,switch and socket location and others important item.

The drawings scale are based upon the architect’s site plan of the building completed with electrical symbol to identified the electrical equipment for the real site to show the actual placed for installation works. read more

Escape and emergency lighting

In accordance with the Fire Precautions Act 1971 and the Health and Safety at Work Act 1974, BS EN 1838 : 1999 Code of practice for the emergency lighting of premises must followed with minimum standards to achieve the safety target.

It is important matter for safety precaution when emergency happen such as fire,explosive,electrical disaster or etc.This system provide the solution for escape to the assembly point in safety and proper ways.

For each country it have their own Act,regulation and code of practice.Basically it quite similar and have additional items depend on their application and suitable with their country. read more

Accessories for MCCB

As we known,Molded Case Circuit Breaker main function is protection device from overload current and short circuit.It also have a several attachment device for additional protection that we can combine with MCCB.

Common accessories used for MCCB such as phase insulation barrier,Shunt trip,Under voltage trip device,rotary handle and change over system.It can provide more protection function that we want add to the application.

Manufactured design for all electrical accessories provide for MCCB are pre wired.It must attach with MCCB and others device recommended from manufacture for efficient and durability to protect the application of system.Below i listed several common accessories for MCCB :- read more

Safety precaution for electrical works

As we known when working on electrical installations, safety matter is our priority.Every step we need to consider about hazards when perform electrical works.

Only competent electrician can work on electrical installation or live condition according to relevant industrial safety standards.Common industrial safety standard for electrical works such as VDE 0105 for Germany, and international standards for EN 50110 or IEC 60364.

For electrician,they need to special tools which have been tested and qualified with electrical standard.Hand tools also must suitable and followed the electrical standard  IEC 60900 and it has specified worldwide requirements for tools for electrical live condition.

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MCCB protection for induction motor

Circuit breaker is the one of important protection device when installing of electrical induction motor.This time i want shared some information about the major parameter that we need consider when applying Molded case circuit breaker(MCCB) for electric motor.

If we not selected the right MCCB for our electric motor application,it will effected to the system and it not running smooth and achieve our expectation.It will cause a additional costing for upgrading and repairing jobs.

Basically it have three (3) particular for induction motor protection.It is overload,locked rotor and short circuit breaker.This point is very important to ensure our motor protection reliability when problem happen. read more

What is an electric shock?

In the Electrical Engineering field,many cases of accident or death around the world causes by electric shocked.It very dangerous because we cannot see,smell and feel the electric current.

Current flow into our body and can make heart stop from functioning and can cause the serious injury even death.The level of danger for electric shock depends on the value of the body current and the time for which the current flows.

Human body have a different insulation value (Ohm) and also different current value can effected the heart.For the body have a low current level,it can easily attack the heart function and it so dangerous.

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