Rechercher

1.1 This Standard applies to automatic compensating valves intended to be installed at the point of use, where the user has access to flow or final temperature controls, and where no further mixing occurs downstream of the device. Note: In this Standard, automatic compensating valves are also referred to as devices. 1.2 This Standard covers automatic compensating valves intended to control…

1.1 This Standard applies to surge protective devices (SPDs) intended for: a) permanently connected applications designed for limiting surge voltages and discharging surge currents; b) use on 50/60 Hz circuits over 42 V and up to 750 V ac; c) installation between the secondary of the service transformer and the line side of the service equipment overcurrent protective device. These devices…

1.1 This Standard applies to surge protective devices (SPDs) intended for a) permanently connected applications designed for limiting surge voltages and discharging surge currents; b) use on 50/60 Hz circuits over 42 V and up to 750 V ac; c) installation on the load side of the main overcurrent protective device; and d) indoor or outdoor use in accordance with the Canadian Electrical Code, Part I…

1.1 This International Standard covers those aspects to be considered when electrical/electronic/programmable electronic (E/E/PE) systems are used to carry out safety functions. A major objective of this standard is to facilitate the development of product and application sector international standards by the technical committees responsible for the product or application sector. This will allow…

1.1 This part of the IEC 61508 series a) is intended to be utilized only after a thorough understanding of IEC 61508-1 and IEC 61508-2; b) applies to any software forming part of a safety-related system or used to develop a safety-related system within the scope of IEC 61508-1 and IEC 61508-2. Such software is termed safety-related software (including operating systems, system software, software…

1.1 Facilities and workplaces impacted This Standard identifies the requirements for a PSM system for facilities and worksites handling or storing materials that are potentially hazardous, either due to an inherent chemical, biological, toxicological, or physical property of those materials, or due to the material’s potential or kinetic energy 1.2 Minimum lifecycle requirements This Standard…

ISO 6405-1:2017 standardizes symbols for use on operator controls and other displays applicable to multiple types of earth-moving machinery as defined in ISO 6165. NOTE 1 ISO 6405‑2 covers symbols for specific types of earth-moving machines, equipment, and accessories. NOTE 2 ISO 7000 and IEC 60417 can be consulted for additional internationally standardized symbols of potential…

ISO 6405-2:2017 standardizes symbols for use on operator controls and other displays on specific types of earth-moving machinery as defined in ISO 6165. NOTE 1 ISO 6405‑1 covers common symbols that apply to multiple types of earth-moving machinery. NOTE 2 ISO 7000 and IEC 60417 can be consulted for additional internationally standardized symbols of potential relevance to earth-moving…

ISO 5577:2017 defines the terms used in ultrasonic non-destructive testing and forms a common basis for standards and general use. This document does not cover terms used in ultrasonic testing with phased arrays. NOTE Terms for phased array ultrasonic testing are defined in EN 16018.

IEC 63044-5-3:2017 is a product family standard that sets the minimum level of EMC performance for the HBES/BACS network in addition to the product EMC standards for HBES/BACS devices. It also applies to devices used within an HBES/BACS network for which no specific HBES/BACS product EMC standard exists. In addition, it defines EMC requirements for the interface of equipment intended to be…