Surge protective devices — Type 1 — Permanently connected
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…
Surge protective devices — Type 2 — Permanently connected
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…
Functional safety — Safety instrumented systems for the process industry sector — Part 1: Framework,...
This part of IEC 61511 gives requirements for the specification, design, installation, operation
and maintenance of a safety instrumented system (SIS), so that it can be confidently
entrusted to achieve or maintain a safe state of the process. IEC 61511-1 has been
developed as a process sector implementation of IEC 61508:2010.
In particular, IEC 61511-1:
a) specifies the requirements for…
ISO 1660:2017 gives the rules for geometrical specifications of integral and derived features, using the line profile and surface profile characteristic symbols as defined in ISO 1101.
ISO 1101:2017 defines the symbol language for geometrical specification of workpieces and the rules for its interpretation.
It provides the foundation for geometrical specification.
The illustrations in this document are intended to illustrate how a specification can be fully indicated with visible annotation (including e.g. TEDs).
NOTE 1 Other International Standards referenced in Clause 2…
Information technology — Small computer system interface (SCSI) — Part 323: SCSI Block commands — 3 ...
ISO/IEC 14776-323:2017, defines the model and command set extensions to be used in conjunction with the SCSI Primary Command Set standard - 4 (SPC-4) to facilitate operation of SCSI direct-access block devices (e.g. hard disk drives).
Framework for energy market communications - Part 451-1: Acknowledgement business process and contex...
IEC 62325-451-1:2017 specifies a UML package for the acknowledgment business process and its associated document contextual model, assembly model and XML schema for use within the European style electricity markets. The relevant aggregate core components (ACCs) defined in IEC 62325-351 have been contextualized into aggregated business information entities (ABIEs) to satisfy the requirements of…
Earth-moving machinery — Symbols for operator controls and other displays — Part 1: Common symbols
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…
Earth-moving machinery — Symbols for operator controls and other displays — Part 2: Symbols for spec...
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…
Specific absorption rate (SAR) measurement procedure for long term evolution (LTE) devices
IEC PAS 63083:2017(E) applies to measurement procedures of Specific Absorption Rate (SAR) generated by devices with LTE (Long Term Evolution) technology specified by 3rd Generation Partnership Project (3GPP), Rel. 8 and 9 [1] where the devices are intended to be used with the radiating part in close proximity to the human head and body. This document supports both FDD and TDD modes. The objective…
