Recent Posts
Archives
- December 2024
- November 2024
- October 2024
- September 2024
- July 2024
- June 2024
- May 2024
- January 2024
- November 2023
- September 2023
- August 2021
- July 2021
- June 2021
- May 2021
- December 2020
- November 2020
- October 2020
- September 2020
- August 2020
- July 2020
- June 2020
- May 2020
- April 2020
- February 2020
- January 2020
- December 2019
- November 2019
- October 2019
- September 2019
- August 2019
- July 2019
- June 2019
- May 2019
- April 2019
- March 2019
- February 2019
- January 2019
- December 2018
- November 2018
- October 2018
- September 2018
- August 2018
- July 2018
- June 2018
- May 2018
- April 2018
- March 2018
- February 2018
- January 2018
- December 2017
- November 2017
- October 2017
- September 2017
- August 2017
- July 2017
- June 2017
- May 2017
- March 2017
- February 2017
- January 2017
- December 2016
- November 2016
- September 2016
- August 2016
- July 2016
- June 2016
- May 2016
- April 2016
- March 2016
- February 2016
- January 2016
- December 2015
- November 2015
- October 2015
- September 2015
- August 2015
- March 2015
- February 2015
- January 2015
- December 2014
- November 2014
- October 2014
- September 2014
- August 2014
- July 2014
- June 2014
- May 2014
- April 2014
- March 2014
- February 2014
- January 2014
- December 2013
- November 2013
- October 2013
- September 2013
- August 2013
- July 2013
- June 2013
- May 2013
- April 2013
- March 2013
- February 2013
- January 2013
- December 2012
- November 2012
- September 2012
- August 2012
- July 2012
- June 2012
- May 2012
- October 2011
- September 2011
- July 2011
- June 2011
- May 2011
- April 2011
- March 2011
- February 2011
Tags
advertising & pr
art
auto
auto and moto
beauty
business
business & economy
career
climate & environment
culture
economy
education
education & career
energy
fashion & jewellery
finance
finances
financial
garden & home factory
hardware & software
health
home page
insurance & pension
internet
internet & multimedia
it
lifestyle
literature
marketing
medicine & surgery
money
motor & transport
news
news & press lyrics
politics
services & consulting
sports
stock exchange & stock markets
the news
The work of
today
trade
Travel
vacation & tourism
vocational
The Sum
April 25, 2019
News
Comments Off on The Sum
Evelyn Vaughan
Next quantity called the "shock, do not release>> and is equal to 10mA. When the flow of current through the human body such force is the spontaneous contraction of the muscles. Details can be found by clicking Jeffrey Leiden or emailing the administrator. Current of 30mA already can cause respiratory paralysis. Irreversible processes, associated with hemorrhage and cardiac arrhythmias begin in the human body when the flow of current value of 50mA. The lethal outcome is possible when the current flows in the 100mA. Thus, timely response devices protection at current less than 500mA protects the object from the fire, and the current less than 10mA – to protect people from accidental contact with live parts. Design and operation in the construction of ust determined by the 3 main components: Cumulative current transformer for detecting leakage current shunt, which converts the electrical measurand into a mechanical separation.
Interlock switching device with contacts Totalizing current transformer is connected to all current-carrying wires. In originally setting the magnetizing effect of current-carrying wires in the summing current transformer interaction is compensated because, according to Ohm's law the sum of all currents is zero. Thus, the residual magnetic field, which could induce a voltage secondary winding is missing. If the failure appears leakage current, the above equilibrium broken and the transformer core is preserved in the residual magnetic field. Consequently, the secondary winding voltage occurs, which, through the release and locking mechanism of switching apparatus disconnects an electrical circuit with defect isolation. This principle of discontinuity in the chain operates independently from the mains supply or availability of energy from the mains supply or availability of energy from an auxiliary source that is a condition of a high level of protection.
promyshlennoct and equipment