IEC 60079-6-2015 pdf download
IEC 60079-6-2015 pdf download.Explosive atmospheres – Part 6: Equipment protection by liquid immersion “o”. This part of IEC 60079 specifies the requirements for the design, construction, testing and marking of Ex Equipment and Ex Components with type of protection liquid immersion “o” intended for use in explosive gas atmospheres. Ex...
IEC 60076-24-2020 pdf download
IEC 60076-24-2020 pdf download.Power transformers – Part 24: Specification of voltage regulating distribution transformers (VRDT). 4 Environmental conditions Service conditions for VRDTs are the same as those specified for power transformers in IEC 60076-1 and IEC 60076-1 1 . The purchaser shall identify in the enquiry to the manufacturer any...
IEC 60076-7-2018 pdf download
IEC 60076-7-2018 pdf download.Power transformers – Part 7: Loading guide for mineral-oil-immersed power transformers. 5.3 Effects and hazards of short-time emergency loading Short-time increased loading will result in a service condition having an increased risk of failure. Short-time emergency overloading causes the conductor hot-spot to reach a level likely to...
IEC 60051-3-2018 pdf download
IEC 60051-3-2018 pdf download.Direct acting indicating analogue electrical measuring instruments and their accessories – Part 3: Special requirements for wattmeters and varmeters. This part of IEC 60051 applies to direct acting indicating wattmeters and varmeters having an analogue display. NOTE For multi-function instruments, see IEC 60051 -7. It also applies...
IEC 60051-2-2018 pdf download
IEC 60051-2-2018 pdf download.Direct acting indicating analogue electrical measuring instruments and their accessories – Part 2: Special requirements for ammeters and voltmeters. This part of IEC 60051 applies to direct acting indicating ammeters and voltmeters having an analogue display. NOTE For multi-function instruments, see IEC 60051 -7. It also applies...
IEC 60034-27-3-2015 pdf download
IEC 60034-27-3-2015 pdf download.Rotating electrical machines – Part 27-3: Dielectric dissipation factor measurement on stator winding insulation of rotating electrical machines. This part of IEC 60034 provides guidelines for the test procedures and the interpretation of test results for dielectric dissipation factor measurements on the stator winding insulation of rotating...
IEC 60034-11-2020 pdf download
IEC 60034-11-2020 pdf download.Rotating electrical machines – Part 11: Thermal protection. This part of IEC 60034 specifies requirements relating to the use of thermal protectors and thermal detectors incorporated into the stator windings or placed in other suitable positions in induction machines in order to protect them against serious damage...
EN IEC 63135-2019 pdf download
EN IEC 63135-2019 pdf download.Maritime navigation and radiocommunication equipment and systems – Automatic identification systems (AIS) – SAR Airborne equipment – Operational and performance requirements, methods of test and required test results (IEC 63135:2018). This document specifies the minimum operational and performance requirements, methods of testing and required test results...
EN IEC 63093-2-2020 pdf download
EN IEC 63093-2-2020 pdf download.Ferrite cores – Guidelines on dimensions and the limits of surface irregularities – Part 2: Pot-cores for use in telecommunications, power supply, and filter applications (IEC 63093-2:2020). This part of IEC 63093 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range...
EN IEC 63073-1-2020 pdf download
EN IEC 63073-1-2020 pdf download.Dedicated radionuclide imaging devices – Characteristics and test conditions – Part 1: Cardiac SPECT (IEC 63073-1:2020). 4 Test methods 4.1 General Before the measurements are performed, the tomographic system shall be adjusted by the procedure normally used by the manufacturer for an installed unit and shall...