The electrical panel and the new IEC 61439
Only a few months to November 1, 2014, the date when the Standard IEC 60439-1 (for low voltage switchboards) will be permanently repealed, and replaced by the new IEC 61439-1 and 61439-2.
Never in the same shape
Only a few months to November 1, 2014, the date when the Standard IEC 60439-1 (for low voltage switchboards) will be permanently repealed, and replaced by the new IEC 61439-1 and 61439-2.
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 rapid and widespread increase in communication technologies that use electricity has greatly altered the electromagnetic environment around us, in addition to the constant increase in the use of electricity there is an ever increasing use of sources and Devices emitting electromagnetic waves.
Anyone who is willing to do so can download and install the latest release of Mathematica from the Wolfram Foundation site for free, on their own Raspberry Pi.
In a time of crisis like the present one in which the energy savings turns out to be a top priority, with a view to more efficient lighting environments especially public ones such as roads, gardens, parks, monuments, signs, parking, etc., the proper assessment of the “morning twilight” (sunrise or dawn) and of the “evening twilight” (sunset), that is those moments of weak illumination that precede the rise and follow the sun, it is of paramount importance.
The Technical Consultant, generally referred to as Court Appointed Expert Witness (CTU in Italy), is a professional with specific technical expertise that acts as the assistant to the judge during the civil trial. Instead (referring only to Italy) if he acts in a criminal trial he is referred as Perito tecnico d’ufficio (PTU).
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.
We explored a bit of Python and threw the basics to work with the Gpio. The article came very long but I hope to have satisfied the needs of newcomers and to have tickled the curiosity of those who discover for the first time the Raspberry Pi.
Over the course of my career as a designer of electrical systems and technical manager of various companies, I have often heard, especially from the experts; The mains voltage is 220 volts, or you receive documents with units of measurement incorrectly written, incomplete and sometimes even completely incomprehensible.
In This section we will discuss the following topics: Raspberry ACCESSP, update and basic commands