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ASTM E3157-23 - Standard Guide for Understanding and Using Information Related to Installation of Firestop Systems
July 15, 2023 - ASTM International

1.1 This guide is a compendium of information related to installing firestop systems in fire-separating elements. This guide is intended to be used to increase industry knowledge of national and international testing requirements, code prerequisites, and other supplemental tests that may be...

ASTM E2904-22 - Standard Practice for Characterization and Verification of Linear Phased Array Ultrasonic Probes
December 1, 2022 - ASTM International

5.1 This practice is intended to provide standardized procedures for evaluating linear phased-array ultrasonic probes. It is not intended to define performance and acceptance criteria, but rather to provide data from which such criteria may be established. 5.2 Implementation may require more...

ASTM E3157-22 - Standard Guide for Understanding and Using Information Related to Installation of Firestop Systems
August 1, 2022 - ASTM International

1.1 This guide is a compendium of information related to installing firestop systems in fire-separating elements. This guide is intended to be used to increase industry knowledge of national and international testing requirements, code prerequisites, and other supplemental tests that may be...

ASTM C1303/C1303M-22 - Standard Test Method for Predicting Long-Term Thermal Resistance of Closed-Cell Foam Insulation
June 1, 2022 - ASTM International

1.1 This test method covers a procedure for predicting the long-term thermal resistance (LTTR) of unfaced or permeably faced rigid gas-filled closed-cell foam insulations by reducing the specimen thickness to accelerate aging under controlled laboratory conditions (1-5) .2 Note 1: See Terminology,...

ASTM D2413-16(2022) - Standard Practice for Preparation of Insulating Paper and Board Impregnated with a Liquid Dielectric
May 1, 2022 - ASTM International

5.1 Dissipation Factor and Relative Permittivity-Knowledge of these properties is important in the design of electrical equipment such as cables, transformers, insulators, and so forth. The numerical product of these two properties of a dielectric system is proportional to the energy loss...

ASTM D2275-22 - Standard Test Method for Voltage Endurance of Solid Electrical Insulating Materials Subjected to Partial Discharges (Corona) on the Surface
March 15, 2022 - ASTM International

5.1 This test method is useful in research and quality control for evaluating insulating materials and systems since they provide for the measurement of the endurance used to compare different materials to the action of corona on the external surfaces. A poor result on this test does...

ASTM D2144-07(2021) - Standard Practices for Examination of Electrical Insulating Oils by Infrared Absorption
December 1, 2021 - ASTM International

1.1 These practices are to be used for the recording and interpretation of infrared absorption spectra of electrical insulating oils from 4000 cm-1 to 400 cm-1 (2.5 µm to 25 µm). Note 1: While these practices are specific to ratio recording or optical null double-beam dispersive spectrophotometers,...

ASTM D4015-21 - Standard Test Methods for Modulus and Damping of Soils by Fixed-Base Resonant Column Devices
December 1, 2021 - ASTM International

5.1 The equivalent elastic shear modulus and damping capacity of a given soil, as measured by the resonant column technique herein described, depend upon the strain amplitude of vibration, the state of effective stress, and the void ratio of the soil, temperature, time, etc. Since the application...

ASTM C1259-21 - Standard Test Method for Dynamic Young's Modulus, Shear Modulus, and Poisson's Ratio for Advanced Ceramics by Impulse Excitation of Vibration
August 1, 2021 - ASTM International

5.1 This test method may be used for material development, characterization, design data generation, and quality control purposes. 5.2 This test method is specifically appropriate for determining the modulus of advanced ceramics that are elastic, homogeneous, and isotropic (1).4 5.3...

ASTM E3081-21 - Standard Practice for Outlier Screening Using Process Compensated Resonance Testing via Swept Sine Input for Metallic and Non-Metallic Parts
June 1, 2021 - ASTM International

5.1 PCRT Applications and Capabilities-PCRT has been applied successfully to a wide range of outlier screening applications in the manufacture and maintenance of metallic and non-metallic parts. Examples of anomalies detected are discussed in 1.1. PCRT has been shown to provide cost effective and...

ASTM B913-21 - Standard Test Method for Evaluation of Crimped Electrical Connections to 16-Gauge and Smaller Diameter Stranded and Solid Conductors
April 1, 2021 - ASTM International

1.1 This test method establishes the requirements for a standardized method of evaluating the quality of crimped-type electrical connections to solid or stranded conductors. This test method applies to 16-gauge and smaller diameter copper wire, coated or uncoated. 1.2 This test method is...

DS/IEC TS 62898-2 - Microgrids – Part 2: Guidelines for operation
October 13, 2020 - DS

IEC TS 62898-2:2018 provides guidelines for operation of microgrids. Microgrids considered in this document are alternating current (AC) electrical systems with loads and distributed energy resources (DER) at low or medium voltage level. This document does not cover direct current (DC)...

ASTM D257-14(2021)e1 - Standard Test Methods for DC Resistance or Conductance of Insulating Materials
March 1, 2021 - ASTM International

5.1 Insulating materials are used to isolate components of an electrical system from each other and from ground, as well as to provide mechanical support for the components. For this purpose, it is generally desirable to have the insulation resistance as high as possible, consistent with...

ASTM D2671-21 - Standard Test Methods for Heat-Shrinkable Tubing for Electrical Use
January 1, 2021 - ASTM International

4.1 These test methods include most of the important tests used to characterize heat-shrinkable tubing. They are intended primarily for, but not limited to, extruded heat-shrinkable tubing. 4.2 It is acceptable to use variations in these test methods or alternate contemporary methods of measurement...

ASTM E2534-20 - Standard Practice for Targeted Defect Detection Using Process Compensated Resonance Testing Via Swept Sine Input for Metallic and Non-Metallic Parts
December 1, 2020 - ASTM International

5.1 PCRT Applications and Capabilities-PCRT has been applied successfully to a wide range of NDT applications in the manufacture and maintenance of metallic and non-metallic parts. Examples of anomalies detected are discussed in 1.1. PCRT has been shown to provide cost effective and accurate NDT...

CEI UNI EN 82079-1 - Preparation of information for use (instructions for use) of products Part 1: Principles and general requirements
November 1, 2020 - CEI

This part of 82079 International Standard provides principles and general requirements for information for the use of products. Information for use is: • necessary for the safe use of a product; • helpful for the efficient and effective use of a product; and • often necessary to fulfil market,...

ASTM E3157-20 - Standard Guide for Understanding and Using Information Related to Installation of Firestop Systems
October 1, 2020 - ASTM International

1.1 This guide is a compendium of information related to installing firestop systems in fire-separating elements. This guide is intended to be used to increase industry knowledge of national and international testing requirements, code prerequisites, and other supplemental tests that may be...

ASTM B794-97(2020) - Standard Test Method for Durability Wear Testing of Separable Electrical Connector Systems Using Electrical Resistance Measurements
October 1, 2020 - ASTM International

1.1 This test method covers the effects of repeated insertion and withdrawal of separable electrical connectors which are harmful to the electrical performance of the connector. 1.2 This test method is limited to electrical connectors designed for use in applications where the current through any...

IEC 61439-2 - Low-voltage switchgear and controlgear assemblies – Part 2: Power switchgear and controlgear assemblies
July 1, 2020 - IEC

This part of IEC 61439 defines the specific requirements for the power switchgear and controlgear assembly (abbreviated 'PSC-assembly' throughout this document see 3.1.101) as follows: • assemblies for which the rated voltage does not exceed 1 000 V AC or 1 500 V DC; • assemblies designed for a...

CEI EN IEC 62962 - Particular requirements for load-shedding equipment(LSE)
April 1, 2020 - CEI

The purpose of this document is to provide requirements for equipment to be used in energy efficiency systems. This document covers load-shedding equipment (LSE). Guidelines relating to safety for LSE as given in IEC Guide 110 have been followed. This document applies to load-shedding...

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