IEC 60401-1 pdf download
IEC 60401-1 pdf download.Terms and nomenclature for cores made of magnetically soft ferrites 1 Scope This part of IEC 60401 provides a nomenclature of the most frequent surface, bulk, and shape irregularities relevant to cores made of ferrites (magnetic oxides). Most irregularities are graphically exemplified as visual aids. A general recommendation is also given for a consistent scheme for specifying...
IEC 60761-5 pdf download
IEC 60761-5 pdf download.Equipment for continuous monitoring of radioactivity in gaseous effluents 1 Scope and object This part of IEC 60761 is applicable to equipment intended for the simultaneous, delayed or discrete sequential measurement of tritium in any gaseous form in gaseous effluents dis- charged into the environment. It is applicable to equipment designed to fulfill the following functions: –...
IEC TS 61370 pdf download
IEC TS 61370 pdf download.Steam turbines – Steam purity 1 Scope This technical specification describes the importance of the chemical characteristics of steam supplied to steam turbines and the need to prevent corrosion and deposition in steam space, in order to minimize the risk of turbine corrosion failures or loss of efficiency or output. The significance of relevant chemical parameters,...
IEC 60749-18 pdf download
IEC 60749-18 pdf download.Semiconductor devices – Mechanical and climatic test methods 1 Scope This part of IEC 60749 provides a test procedure for defining requirements for testing packaged semiconductor integrated circuits and discrete semiconductor devices for ionizing radiation (total dose) effects from a cobalt-60 ( 60 Co) gamma ray source. This standard provides an accelerated annealing test for estimating low...
IEC 60702-1 pdf download
IEC 60702-1 pdf download.Mineral insulated cables and their terminations with a rated voltage not exceeding 750 V 1 Scope This standard applies to mineral insulated general wiring cables with copper or copper alloy sheath and copper conductors and with rated voltages of 500 V and 750 V. Provision is made for a corrosion-resistant extruded outer covering over the copper sheath,...
IEC 61967-1 pdf download
IEC 61967-1 pdf download.Integrated circuits – Measurement of electromagnetic emissions, 150 kHz to 1 GHz 1 Scope This part of IEC 61967 provides general information and definitions on measurement of conducted and radiated electromagnetic disturbances from integrated circuits. It also provides a description of measurement conditions, test equipment and set-up as well as the test procedures and content of the...
IEC 60749-20 pdf download
IEC 60749-20 pdf download.Semiconductor devices – Mechanical and climatic test methods 1 Scope and object This part of IEC 60749 applies to semiconductor devices (discrete devices and integrated circuits). This test method provides a means of assessing the resistance to soldering heat of plastic- encapsulated surface mount devices (SMDs). This test is destructive. NOTE This test is identical to the...
IEC 61482-1 pdf download
IEC 61482-1 pdf download.Live working – Flame-resitant materials for clothing for thermal protection of workers – Thermal hazards of an electric arc 1 Scope This part of IEC 61482 specifies test methods to measure the arc thermal performance value of materials intended for use in heat- and flame-resistant clothing for workers exposed to electric arcs. These test methods measure the...
IEC 60626-3 pdf download
IEC 60626-3 pdf download.Combined flexible materials for electrical insulation 1 Scope This part of IEC 60626 specifies dimensional and performance requirements for individual combined flexible materials. This part is in the form of groups of sheets. Sheets are numbered in accordance with table 1, which provides a complete list of all the specification sheets belonging to this standard. 2 Normative...
IEC 62271-105 pdf download
IEC 62271-105 pdf download.High-voltage switchgear and controlgear 1 General 1.1 Scope This part of IEC 62271 applies to three-pole units for public and industrial distribution systems which are functional assemblies of switches including switch-disconnectors and current- limiting fuses designed so as to be capable of – breaking, at the rated recovery voltage, any current up to and including the rated...