Obecné elektrotechnické normy

Oblast zaměření: Hliníkové elektrické vodiče
Komise : IEC/SC 46F (RF and microwave passive components)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 26.10.2021
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This part of IEC 61169, which is a sectional specification (SS), provides information and rules for the preparation of detail specifications (DS) for RF coaxial connectors with push-on coupling, typically for use in 50 W RF cables or micro-strips in microwave, telecommunication, wireless systems, and other fields (SMP3)

It prescribes mating face dimensions for general purpose connectors – grade 2, dimensional details of standard test connectors-grade 0, gauging information and tests selected from IEC 61169-1, applicable to all detail specifications relating to series SMP3 RF connectors.

This specification indicates recommended performance characteristics to be considered when writing a detail specification and it covers test schedules and inspection requirements for assessment levels M and H.

The SMP3 push-on coupling structure series R.F. coaxial connector with the characteristic of normative impedance 50 W are used with various kinds of RF cables or micro-strips in microwave, telecommunication, wireless systems, and other fields. The operating frequency limit is up to 65 GHz.

NOTE imperial dimension are original dimensions. All undimensioned pictorial configurations are for reference purpose only.

Komise : IEC/TC 113 (Nanotechnology standardization for electrical and electronics products and systems)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 10.11.2021
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This part of ISO 80004 series lists terms and definitions related to core terms in the field of nanotechnologies. It is intended to facilitate communications between organizations and individuals in industry and those who interact with them.

Oblast zaměření: Hliníkové elektrické vodiče
Komise : IEC/SC 46F (RF and microwave passive components)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 24.11.2021
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This part of IEC 60153 specifies straight hollow metallic tubing of circular cross section for use as waveguides in electronic equipment.

The aim of this recommendation is to specify the hollow metallic waveguides:

a)       the details necessary to ensure compatibility and, as far as essential, interchangeability;

b)       test methods;

c)       uniform requirements for the electrical and mechanical properties.

It should be noted that no recommendations are made for the materials to be used for waveguides. The choice of material is to be agreed upon by customer and manufacturer.

This document should be read in conjunction with IEC 60153-1, which gives general requirements and test methods.

Oblast zaměření: Elektrické svařování
Komise : IEC/TC 26 (Electric welding)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 24.11.2021
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This part of IEC 60974 is applicable to coupling devices for cables used in arc welding and allied processes, designed for connection and disconnection without using tools.

This part of IEC 60974 specifies safety and performance requirements of coupling devices.

This part of IEC 60974 is not applicable to coupling devices for underwater welding.

Oblast zaměření: Supravodivost
Komise : IEC/TC 90 (Superconductivity)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 7.12.2021
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This part of IEC 61788 is applicable to the measurement of the dark count rate (DCR, RD) of superconductor strip photon detectors (SSPDs). It specifies terms, definitions, symbols and the measurement method of DCR that depends on the bias current (Ib) and operating temperature (T).

Oblast zaměření: Spolehlivost
Komise : IEC/TC 56 (Dependability)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 21.12.2021
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This International Standard gives a number of optimized test plans, the corresponding border lines and characteristics. In addition the algorithms for designing test plans using a spreadsheet program are also given, together with guidance on how to choose test plans.

This standard specifies procedures to test whether an observed value of

failure rate,

failure intensity,

mean operating time to failure (MTTF),

mean operating time between failures (MTBF),

conforms to a given requirement.

It is assumed, except where otherwise stated, that during the accumulated test time, the times to failure or the operating times between failures are independent and identically exponentially distributed. This assumption implies that the failure rate or failure intensity is assumed to be constant.

Four types of test plans are described as follows:

truncated sequential probability ratio test (SPRT);

fixed time/failure terminated test (FTFT);

fixed calendar time terminated test without replacement;

combined test.

This standard does not cover guidance on how to plan, perform, analyse and report a test. This information can be found in IEC 60300-3-5.

This standard does not describe test conditions. This information can be found in IEC 60605-2 and in IEC 60300-3-5.