IEC 60747-9 pdf download
IEC 60747-9 pdf download.Semiconductor devices – Discrete devices 1 Scope This part of IEC 60747 gives product specific standards for terminology, letter symbols, essential ratings and characteristics and measuring methods for insulated-gate bipolar transistors (IGBTs). 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 60747. At the...
IEC 60034-7 pdf download
IEC 60034-7 pdf download.Rotating electrical machines IEC 60034 consists of the following parts, under the general title: Rotating electrical machines: Part 1: Rating and performance, issued as IEC 60034-1 Part 2: Methods for determining losses and efficiency of rotating electrical machinery from tests (excluding machines for traction vehicles), issued as IEC 60034-2 Part 2A: First supplement: Measurement of losses by...
BS IEC 61882 pdf download
BS IEC 61882 pdf download.Hazard and operability studies (HAZOP studies) — Application guide 1 Scope This International Standard provides a guide for HAZOP studies of systems utilizing the specific set of guide words defined in this document. It also gives guidance on application of the technique and on the HAZOP study procedure, including definition, preparation, examination sessions and resulting documentation...
IEC 61076-5 pdf download
IEC 61076-5 pdf download.Connectors for use in d.c., low-frequency analogue and digital high-speed data applications 1 Scope and object This part of IEC 61076 relates to the plug-in sockets designed for in-line electronic packages of assessed quality. Sockets covered by this specification are devices which provide a means of interchangeability between devices and compliance between mating limits. The scope of...
ISO IEC 20162 pdf download
ISO IEC 20162 pdf download.Information technology — Data interchange on 300 mm optical disk cartridges of type WORM (Write Once Read Many) using irreversible effects — Capacity: 30 Gbytes per cartridge 1 Scope This International Standard specifies the characteristics of a 300 mm optical disk cartridge (ODC) of Type WORM (Write Once Read Many) using irreversible effects, with a capacity...
IEC 62121 pdf download
IEC 62121 pdf download.Methods of measurement for minidisc recorders/players 1 Scope and object This International Standard specifies the measuring methods for recording and reproducing equipment for MiniDiscs that conform to the specifications of IEC 61 909. NOTE 1 For convenience, this recording and reproducing equipment will be referred to as “MD recorder” hereinafter. The reproducing part of this equipment or...
IEC TR 61838 pdf download
IEC TR 61838 pdf download.Nuclear power plants – Instrumentation and control functions important for safety– Use of probabilistic safety assessment for the classification 1 Scope This Technical Report provides a survey of some of the methods by which probabilistic risk assessment results can be used to establish “risk based” classification criteria, so as to allow FSEs to be placed within...
IEC 61162-420 pdf download
IEC 61162-420 pdf download.Maritime navigation and radiocommunication equipment and systems – Digital interfaces 1 Scope and object International Standard IEC 61 1 62-420 specifies the requirement for and basic components of the IEC 61 1 62-4 series companion standards. These components are referred to as follows: a) PCS (PISCES companion standards) which contain the rules for creation of companion standards....
IEC 61834-1 pdf download
IEC 61834-1 pdf download.Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) 1 General 1.1 Scope This part of IEC 61 834 specifies the content, format and recording method of the data blocks forming the helical records on the tape. It describes the common specifications for cassettes, modulation method,...
IEC 60255-24 pdf download
IEC 60255-24 pdf download.Electrical relays 1 Scope and object This part of IEC 60255 defines a format for files containing transient waveform and event data collected from power systems or power system models. This standard applies to files stored on physical media such as digital hard drives and diskettes. It is not a standard for transferring data files over communication...