The global trend of electrification means that there are more and more devices around us powered by electricity: from computers, televisions or coffee machines, through construction equipment such as power tools, or welders to industrial equipment such as presses and lathes. We use them every day and often reflexively, but are they safe? Defective devices are a common cause of fire, accident, loss of health and even death.
How to test such devices? Norms and legal acts relating to periodi
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