loading
ASTM E1820-20ae1 - Standard Test Method for Measurement of Fracture Toughness
June 1, 2020 - ASTM International

5.1 Assuming the presence of a preexisting, sharp, fatigue crack, the material fracture toughness values identified by this test method characterize its resistance to: (1) fracture of a stationary crack, (2) fracture after some stable tearing, (3) stable tearing onset, and (4) sustained...

P61886-1_D2_May2020 - IEEE/IEC Draft International Standard for Subsea Equipment - Power Connectors, Penetrators and Jumper Assemblies with Rated Voltage from 3 kV (Umax = 3.6 kV) to 30 kV (Umax = 36 kV)
2020 Edition, May 26, 2020 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

This document is applicable to single and three-phase wet-mateable and dry-mateable AC connectors, penetrators and jumper assemblies with rated voltages from 3 kV (Umax = 3,6 kV) to 30 kV (Umax = 36 kV). This document relates to the requirements and tests for products in the "as manufactured and...

P1427/D3.1, May 2020 - IEEE Draft Guide for Recommended Electrical Clearances and Insulation Levels in Air Insulated Electrical Power Substations
2020 Edition, May 21, 2020 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

This guide, covering three-phase ac systems 1 from 1 kV to 800 kV, provides recommended electrical operating and safety clearances and insulation levels in air-insulated electric supply substations; addresses insulation coordination procedures; provides design procedures for...

P1937.1/D6.0, May 2020 - IEEE Draft Standard Interface Requirements and Performance Characteristics for Payload Devices in Drones
2020 Edition, May 19, 2020 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

IEEE 1937.1 standard presents the general interface requirements and performance characteristics of payload devices in drones. Chapater1 and chapter2 are the overview and normative references of the standard. In chapter 3, there are a few definitions including drones, payload and payload interface...

PC57.12.70/D4.1, May 2020 - IEEE Draft Standard for Standard Terminal Markings and Connections for Distribution and Power Transformers
2020 Edition, May 19, 2020 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Standard terminal markings and connections are described for single-phase and three phase distribution, power, and regulating transformers. For terminal markings, it covers sequence designation, external terminal designation, neutral terminal designation, grounded terminal designation, and marking...

C37.20.1a-2020 - IEEE Standard for Metal-Enclosed Low-Voltage (1000 V ac and below, 3200 V dc and below) Power Circuit Breaker Switchgear - Amendment 1: Control and Secondary Circuits and Devices, and All Wiring
2020 Edition, May 13, 2020 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The requirements for control, secondary, and logic-level wiring are addressed in this amendment. It covers wire type, ampacity, and methods for protecting wiring across a hinge.

P2660.1/D1, May 2020 - IEEE Draft Recommended Practices on Industrial Agents: Integration of Software Agents and Low Level Automation Functions
2020 Edition, May 12, 2020 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

IEEE P2660.1 defines the recommended practices to solve the interface problem when applying industrial agents, namely integrating intelligent software agents with low-level automation devices in the context of cyber-physical systems. Particularly, it defines a method to select the best interfacing...

1547a-2020 - IEEE Standard for Interconnection and Interoperability of Distributed Energy Resources with Associated Electric Power Systems Interfaces--Amendment 1: To Provide More Flexibility for Adoption of Abnormal Operating Performance Category III
2020 Edition, April 15, 2020 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The performance and functional capability requirements for DER connected with the Area Electric Power Systems (Area EPS) are defined in IEEE Std 1547(TM). This amendment revises the ranges of allowable trip clearing time settings in Table 13 for DERs in abnormal operating performance...

ASTM F762/F762M-08(2020)e1 - Standard Test Method for Determining Change in Groove (or Void) Depth With Distance Traveled for Passenger Car Tires
May 1, 2020 - ASTM International

5.1 The test data obtained with this test method may be used to compare the performance of various tires for the conditions under which they were tested. 5.2 This test method is suitable for a variety of quality assurance, research, and development purposes, when tires are to be compared during a...

ASTM A278/A278M-01(2020) - Standard Specification for Gray Iron Castings for Pressure-Containing Parts for Temperatures Up to 650 °F (350 °C)
May 1, 2020 - ASTM International

This specification covers gray iron for castings suitable for pressure-containing parts at elevated temperatures. Castings shall be stress-relieved by placing them in a suitable furnace and heating them uniformly to the temperatures and for the times specified. Castings to be used at...

Advertisement