Electrical power

http://spectrum.ieee.org/energywise/energy/renewables/rooftop-solars-threat-to-utilities-by-the-numbers Posted from WordPress for Android →

Celebrating 100 Years of Safety & Interoperability For 100 years companies and workers alike have relied upon the National Electrical Safety Code (NESC) to help guard the safety and efficiency of electric supply, communication lines, and related equipment. One of the oldest and most ubiquitous safety codes, the NESC has been in continuous use since →

http://www.iflscience.com/environment/renewables-now-produce-22-percent-worlds-electricity Posted from WordPress for Android →

http://www.telegraph.co.uk/news/worldnews/europe/eu/11061538/EU-to-ban-high-energy-hair-dryers-smartphones-and-kettles.html Does this make sense or is this just stupid? Posted from WordPress for Android →

http://spectrum.ieee.org/green-tech/solar/solar-energy-isnt-always-as-green-as-you-think Posted from WordPress for Android →

Watch a Hacker Fry a Hair Dryer With Her Radio article shows that a handheld directional radio antenna can be used to to fry a ground fault circuit interrupter, or GFCI: GFCIs integrated into household appliances like hair dryers and heaters or wall outlets, mischievously switching them off or making the plugs shake, spark and →

http://www.electronicproducts.com/Power_Products/Invertors/Advanced_solar_microinverters_lay_groundwork_for_smart_grid.aspx In the span of a few years, the photovoltaic (PV) microinverter has evolved from an intriguing and potentially disruptive technological advancement to a market-leading product category in the residential and commercial solar installation market. Millions of devices have been deployed and have already helped genrate terawatt-hours of electricity from hundreds of thousands of rooftop →

Yesterday I passed SFS6002 electrical safety course and got SFS 6002 käytännössä book. SFS 6002 electrical safety training is for all electrical work in Finland engaged in compulsory education, which must be renewed every five years. Now I know somewhat more than before on electrical safety related to electrical installations. SFS6002 is a Finnish standard →

Yesterday evening tech news were all about Standardized Laptop Charger Approved By IEC. The IEC, the standards body which wrote the phone charger specification used in the EU, has approved a standardised laptop charger. IEC is optimistic that it will lead to a reduction in electronics waste and make it easier to find a replacement →

Here is the power supply that came with a cheap MP3 player. It is a power supply that takes in 230V mains power and outputs 5V at USB connector. What is wrong with this power supply? Let’s start with the electromechanical design. The mains connection pins that can be folded in and out at a →