Electromagnetic compatibility (EMC) - Part 4-28: Testing and measurement techniques - Variation of p...
Establishes a reference for evaluating the immunity of electric and electronic equipment when subjected to variations of the power frequency. Only conducted phenomena are considered, including immunity tests for equipment connected to public and industrial networks.
Reinforced Concrete and Unreinforced Concrete Pipes and Monolithic Lateral Connections for Evacuatio...
1 PURPOSE
This standard specifies the physical and dimensional characteristics of prefabricated reinforced concrete and unreinforced concrete pipes and monolithic lateral connections. This standard also specifies control and test methods to verify these requirements.
2 SCOPE
This standard applies to round sections of reinforced concrete and unreinforced concrete pipes intended for burial…
Fixed inductors for electromagnetic interference suppression - Part 2: Sectional specification
IEC 60938-2:1999, applies to fixed inductors designed for electromagnetic interference suppression and which fall within the scope of the generic specification, IEC 60938-1. It is restricted to fixed inductors for which safety tests are appropriate. This implies that inductors specified according to this specification will either be connected to mains supplies, when compliance with the mandatory…
Fixed inductors for electromagnetic interference suppression - Part 2: Sectional specification
IEC 60938-2:1999, applies to fixed inductors designed for electromagnetic interference suppression and which fall within the scope of the generic specification, IEC 60938-1. It is restricted to fixed inductors for which safety tests are appropriate. This implies that inductors specified according to this specification will either be connected to mains supplies, when compliance with the mandatory…
Live working - Portable equipment for grounding and bonding
This National Standard of Canada is based on International Standard CEI/IEC 61230: 1993.
1 Scope
This International Standard is applicable to portable equipment, with or
without matching fixed connection points, for temporary earthing or earthing
and short-circuiting of electrically isolated a.c. transmission and
distribution systems, including railway systems, for the protection of…
Optics and optical instruments — Ancillary devices for geodetic instruments — Part 2: Tripods
This part of ISO 12858 specifies the most important requirements of telescopic tripods for surveying instruments
and the connection between instrument and tripod.
The requirements in this part of ISO 12858 enable instruments and tripods of different manufacturers to be joined to
one another, without prejudicing their performance and their usefulness.
This part of ISO 12858 is applicable to…
Information technology — Fibre Distributed Data Interface (FDDI) — Part 4: Single Mode Fibre Physica...
This part of ISO/IEC 9314 specifies the Single-mode fibre Physical Layer Medium Dependent (SMF-PMD) requirements for the Fibre Distributed Data Interface (FDDI).FDDI provides a high bandwidth (100 megabits per second) general purpose interconnection among computers and peripheral equipment using a fibre optic waveguide as the transmission medium. The FDDI may be configured to support a sustained…
1. Scope
1.1 Purpose
The purpose of this Code is to provide minimum requirements for the design,
construction, installation, and maintenance of those mechanical refrigeration
systems included in Clause 1.2, so as to minimize the risk of human injury.
Note: This Code does not directly address protection of property and
preservation of the environment, which may be addressed in other Acts…
