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IEC 60751:2008 pdf free download IEC 60751:2008 pdf free download.Industrial platinum resistance thermometers and platinum temperature sensors 6.5.4 Thermoelectric effect The thermometer shall be heated to the declared maximum temperature with the thermometer terminals close
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IEC 61850-2:2003 pdf free download IEC 61850-2:2003 pdf free download.Communication networks and systems in substations 2.39 function(s) task(s) performed by the substation automation system i.e. by application functions. Generally,functions exchange data with other functions. Details
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IEC 61730-1:2004 pdf free download IEC 61730-1:2004 pdf free download.Photovoltaic (PV) module safety qualification 7.2.1 If the module contains a field wiring terminal block, it shall be rated for the appropriate voltage and current for
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IEC 62271-2:2003 pdf free download IEC 62271-2:2003 pdf free download.High-voltage switchgear and controlgear 7.3 Analysis The general procedure is as follows: a) To establish, using experimental data stated in 7.2, a mathematical model of switchgear
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IEC 62305-4:2010 pdf free download IEC 62305-4:2010 pdf free download.Protection against lightning 6.1 General Magnetic shielding can reduce the electromagnetic field as well as the magnitude of induced internal surges. Suitable routing of internal lines
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IEC 60601-2-50:2000 pdf free download IEC 60601-2-50:2000 pdf free download.Medical electrical equipment The instructions for use shall – inform the OPERATOR about the necessity of temperature measurements on the PATIENT , if the PHOTOTHERAPY EQUIPMENT
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IEC 60947-7-4:2013 pdf free download IEC 60947-7-4:2013 pdf free download.Low-voltage switchgear and controlgear 8.4.5 Temperature rise test This test serves to evaluate the ability of the PCB terminal block to carry the rated current permanently
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EN IEC 60034-23:2019 pdf free download EN IEC 60034-23:2019 pdf free download.Rotating electrical machines 4.5 System efficiencies If a motor has already been updated to an energy efficient machine, then a repair is often the
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IEC 60909-3:2003 pdf free download IEC 60909-3:2003 pdf free download.Short-circuit currents in three-phase a.c. systems 1 Scope This part of IEC 60909 specifies procedures for calculation of the prospective short-circuit currents with an unbalanced short
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IEC 60255-5:2000 pdf free download IEC 60255-5:2000 pdf free download.Electrical relays Category II applies where: a) the auxiliary circuits (power supply circuits) of the relay are connected to a voltage supply used only for the
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