Acoustics — Determination of sound power levels of noise sources — Guidelines for the use of basic s...
ISO 3740:2019 gives guidance for the use of a set of twelve basic International Standards (see Tables 1, 2 and 3) describing various methods for determining sound power levels from all types of machinery, equipment and products. It provides guidance on the selection of one or more of these standards, appropriate to any particular type of sound source, measurement environment and desired accuracy…
Method for the justification of fire partitioning in water cooled nuclear power plants (NPP)
The document provides:
— guidelines for determining the thermal effects to consider on fire barriers inside a given room;
— guidelines for determining the global performance of the fire barriers based on standard test characterization;
— guidelines for assessing the need for additional tests to verify the robustness of the solution.
Requirements of applicable standards, numerical tools validation…
Safety of laser products - Part 12: Safety of free space optical communication systems used for tran...
IEC 60825-12:2019 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.
IEC 60825-12:2019 provides requirements and specific guidance for the manufacture and safe use of laser products…
Light and lighting — Maintenance factor determination — Way of working
This document specifies a standardized way of working for determining the maintenance factor for both outdoor and indoor lighting installations using the methodology as described in CIE 154:2003 and CIE 097:2005.
1 Scope
1.1
The requirements of this Standard apply to the following electrical equipment for elevators, escalators, moving walks, dumbwaiters, material lifts, and elevating devices for persons with physical disabilities (platform lifts and stairway chairlifts):
a)
motor controllers;
b)
motion controllers;
c)
operation controllers;
d)
operating devices; and
e)
all other electrical…
This document sets the requirements for conducting and reporting the results of a pumping system energy assessment (hereafter referenced as "assessment") that considers the entire pumping system, from energy inputs to the work performed as the result of these inputs.
The objective of a pumping system energy assessment is to determine the current energy consumption of an existing system…
Use case methodology - Part 1: Concept and processes in standardization
IEC TR 62559-1:2019, which is a Technical Report, is the basis for a common use case repository, used to gather use cases within IEC on a common collaborative platform. The repository is used to organize and harmonize use cases in order to provide broadly accepted generic use cases as basis for the further standardization work.
This document gives an overview about the individual parts of the…
Rotating electrical machines - Part 23: Repair, overhaul and reclamation
IEC 60034-23:2019 covers the procedures necessary to ensure the satisfactory repair, overhaul, and reclamation of all types and sizes of rotating electrical machines covered by IEC 60034.
This standard creates a generic industry procedure covering common aspects of a complete repair. The scope of work depends on the machine type, rating, condition, and the importance of plant reliability and…
1 Scope
1.1 Objective
1.1.1
This Standard provides minimum requirements and recommendations to protect persons who work in
an environment affected by welding, cutting, and allied processes from illness and injury and to prevent
damage to property arising from the installation, operation, and maintenance of equipment used in
these processes.
1.1.2
This Standard specifies the elements of a…
Road vehicles — Functional safety — Part 2: Management of functional safety
This document is intended to be applied to safety-related systems that include one or more electrical and/or electronic (E/E) systems and that are installed in series production road vehicles, excluding mopeds. This document does not address unique E/E systems in special vehicles such as E/E systems designed for drivers with disabilities.
NOTE Other dedicated application-specific safety…