IEC 60332-3-24-2018 pdf download
IEC 60332-3-24-2018 pdf download.Tests on electric and optical fibre cables under fire conditions – Part 3-24: Test for vertical flame spread of vertically-mounted bunched wires or cables – Category C. This part of IEC 60332 covers category C for methods of test for the assessment of vertical flame spread of...
IEC 60305-2021 pdf download
IEC 60305-2021 pdf download.Insulators for overhead lines with a nominal voltage above 1 000 V – Ceramic or glass insulator units for AC systems – Characteristics of insulator units of the cap and pin type (IEC 60305:2021). This International Standard applies to string insulator units of the cap and pin...
IEC 60230-2018 pdf download
IEC 60230-2018 pdf download.Impulse tests on cables and their accessories. This document defines the procedure for carrying out withstand lightning and switching impulse tests and withstand superimposed impulse test on cables and their accessories. This document applies solely to the methods of carrying out the tests as such, independently of...
IEC 60034-18-41-2014 pdf download
IEC 60034-18-41-2014 pdf download.Rotating electrical machines – Part 18-41: Partial discharge free electrical insulation systems (Type I) used in rotating electrical machines fed from voltage converters – Qualification and quality control tests. 4 Machine terminal voltages arising from converter operation Modern converter output voltage rise times may be in the...
IEC 60183-2015 pdf download
IEC 60183-2015 pdf download.Guidance for the selection of high-voltage A.C. cable systems. This International Standard is intended to give guidance in the selection of a.c. high-voltage cables and cable systems with extruded insulation and mainly to be used on three-phase alternating systems operating at voltages exceeding U = 1 kV...
IEC 60172-2020 pdf download
IEC 60172-2020 pdf download.Test procedure for the determination of the temperature index of enamelled and tape wrapped winding wires. With the specimen in the vertical position, it shall be immersed in the impregnating agent for (60 ± 1 0) s. It shall be removed slowly and uniformly at a rate...
IEC 60098-2020 pdf download
IEC 60098-2020 pdf download.Analogue audio disk records and reproducing equipment (IEC 60098:2020). 6 The groove 6.1 Direction of groove modulation The stereophonic groove shall carry two channels of information. The two channels shall be recorded in such a manner that they can be reproduced by movements of a reproducing stylus...
IEC 60079-28-2015 pdf download
IEC 60079-28-2015 pdf download.Explosive atmospheres – Part 28: Protection of equipment and transmission systems using optical radiation. This part of IEC 60079 specifies the requirements, testing and marking of equipment emitting optical radiation intended for use in explosive atmospheres. It also covers equipment located outside the explosive atmosphere or protected...
IEC 60079-26-2021 pdf download
IEC 60079-26-2021 pdf download.Explosive atmospheres – Part 26: Equipment with Separation Elements or combined Levels of Protection. 4 Ex Equipment with two combined Types of Protection 4.1 General To achieve EPL Ga, electrical equipment may comply with the requirements of two independent Types of Protection each of EPL Gb. If...
IEC 60079-19-2015 pdf download
IEC 60079-19-2015 pdf download.Explosive atmospheres – Part 19: Equipment repair, overhaul and reclamation. 4 General 4.1 General principles This clause covers those aspects of repair, overhaul, reclamation, alteration, and modification which are common to all explosion-protected equipment. Subsequent clauses provide instructions for the additional requirements relevant to specific types of...