Electrical outlets and plugs for household and similar purposes

  Introduction Unfortunately, even today sockets and plugs for domestic use are electrical components that have not yet undergone any form of unification mainly due to the resistance of the different countries to abandon their system. Almost all countries have their own system of sockets and plugs as a result, …

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Surge Protection

The increasing use of electrical and electronic equipment especially sensitive to surges in low-voltage networks, has made it essential the implementation of protection systems more efficient and targeted particularly to the type of system where such protection is necessary. The modern electronic devices, even in the home, such as: local …

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Dangers of electricity

Introduction It is my intention to highlight, with this article, the great danger of electricity, today too often underestimated due to the lack of a proper and continuous training for both overconfidence and carelessness. The following article is dedicated especially to young professionals and it is the result of ongoing professional …

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The Legislative Basis of Electrical Safety

Introduction The purpose of this article and those that follow is to discuss the issues relating to electrical safety from design to maintenance. In this article we talk about the basis of the legislation and regulation of the electrical safety. The safety of people and things can not be separated …

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Determination of the average illuminance

The average illuminance Generally, when we talk about of illuminance we refer to the operating average illuminance Em, especially in the application of the levels prescribed by the regulations in force. This value is the average illuminance on the worktop in the environment considered, referring to an intermediate aging state and …

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Electrical wires and cables

A cable is defined as the set of conductors, insulators, sheaths and armor protection or shielding, specifically built to carry the current both for energy transportation and for signal transmission. There are three main normative references for correct use of the cables: CEI 20-40 “Handbook of electrical cables with operating …

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Electrical measurements

Before dealing with the topic of measurement of electrical quantities, it is worth to point out that, as far as you can use high-tech and high accuracy devices, no measurement can be regarded as correct. Thus, it follows that the evaluation of measurement error, in relation to the type of …

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