Standards World

IEC 60700-2:2021 pdf free download - Thyristor valves for high voltage direct current (HVDC) power transmission 1 Scope This part of lEC 60700 defines terms for thyristor valves for high-voltage direct current (HVDC)power transmission with line commutated...

IEC 60700-1:2021 pdf free download - Thy4.1.1Evidence in lieu 4.11 Each design of valve shall be subjected to the type tests specified in this standard. If thevalve is demonstrably similar to one previously tested, the supplier may,...

IEC 60695-2-10:2000 pdf free download - Essais relatifs aux risques du feu 1 Scope This part of lEC 60695 specifies the glow-wire apparatus and common test procedure tosimulate the effect of thermal stresses which may be produced...

IEC 60601-2-34:2000 pdf free download - Medical electrical equipment The same test pressure as before is applied again to the TRANSDUCER.The deflection shall bethe same as that noted at the beginning of this test, the tolerance allowed...

IEC 60601-1-4:2000 pdf free download - Medical electrical equipment The following normative documents contain provisions which，through reference in this text,constitute provisions of this International Standard.At the time of publication， the editionsindicated were valid. All normative documents are...

IEC 60598-1:2020 pdf free download - Luminaires The requirements and tolerances permitted by this document are related to testing of a typetest sample submitted for that purpose.Compliance of the type test sample does not ensurecompliance of the...

IEC 60565-1:2020 pdf free download - Underwater acoustics - Hydrophones - Calibration of hydrophones 1 Scope This part of IEC 60565 specifies methods and procedures for free-field calibration ofhydrophones,as well as individual electroacoustic transducers that can be...

IEC 60522-1:2020 pdf free download - Medical electrical equipment -Diagnostic X-rays Steps for determining the QUALITY EQUIVALENT FILTRATION: 4a Place the FILTERING MATERIAL(S)(F3) to be measured in the X-RAY BEAM.Measure the AIR KERMA RATE at a HIGH...

IEC 60519-1:2020 pdf free download - Safety in installations for electroheating and electromagnetic processing 4.4.2Classification of risks A specific risk depends on emission, duration, intensity of the agent, but also on the exposedbodypart,awareness or sensing of the...

IEC 60502-1:2021 pdf free download - Power cables with extruded insulation and their accessories for rated voltagesfrom 1 kV (Um =1,2 kV) up to 30 kV(Um = 36 kV) 7.4.2 Cables having only a collective metal layer...