Archive for the ‘Electrical Safety’ Category

How can fuses replace CBs in 3-phase systems? (back to basics)

March 9th, 2017 | 2 Comments | Posted in Electrical Safety


As only few milliamperes can kill a human in a part of second, safety always is the big concern for electrical engineers and protection systems designing gets much more attention.

This is the topic our fellow electrical engineer Yasser chose to discuss today. As a reminder, you too can be published in this blog, just send a mail to the team!

Protection and fuses

Usually the word protection in electrical engineers’ glossary is associated with Circuit Breakers (CBs) and Fuses. These devices are the muscles of protection systems which isolate and protect them from different kinds of faults and/or abnormal conditions.

Why a Preventive Maintenance Plan of CBs is a good idea

March 3rd, 2017 | 1 Comment | Posted in Electrical Safety

Here’s an article by B.Q., one of the members of the Electrical Engineering Community. He kindly sent us this essay last week and we thought it would be nice to share it with you all! Want to be published too? Reach us by mail

By definition, “a circuit breaker is a protective device that operates automatically”. Certain fault conditions can actuate a circuit breaker resulting in a discontinuation of power supply to the relevant circuit or device.

circuit breaker failure consequences


Power Outage: safety before, during and after

July 19th, 2016 | 1 Comment | Posted in Electrical Safety
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Hi my fellows electrical engineers, it’s Steven Mill and today I want to deal with safety basics. So here is an article about Safety before, during and after power outage. Let me know what you think about it!

The electric power supplied to homes, factories, public places and other installations have the potential to harm the users. Even the domestic installation, which is one of the smallest, has enough current to cause death by electrocution. Other than the direct harm resulting from touching the live conductors, there are other indirect dangers such as fire hazards or accidents by moving electromechanical parts.

Electrical safety signs

Electrical safety signs | image : mfgtrade


Reasons for Load Shedding

July 11th, 2016 | Make a comment | Posted in Electrical Safety
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Today we’re glad to show you this article by A.N, our fellow member of the community. You still can send us your essays by mail. Enjoy!

Load shedding in electrical supply networks is a controlled process in which the utility company drops off part of the load in order to balance the demand and the generated capacity. This is often done whenever there is excess load on the system. In standby generators, it involves disconnecting or shedding some circuits to prevent an overload condition.

turning off some loads

Figure 1: turning off some loads | image:


Protection systems for underground cables systems

June 16th, 2016 | 4 Comments | Posted in Electrical Safety
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Underground cable coversThird part of A.N’s articles series about underground cables. Check the last 2 on the blog or just read this one focusing on protection systems and comment to give your impressions.

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