1. PURPOSE AND APPLICATIONS
The purpose of this standard is to define, standardize and simplify the terms,
regulations and techniques relating to the pruning of trees undertaken to:
a) correct an existing or potential unbalance between the crown and the
roots;
b) terminate, reduce, maintain, control or encourage growth;
c) ensure safety…
1. OBJEt
1.1 La présente norme provisoire s'applique aux symboles et aux quelques
légendes associées, destinés à communiquer de l'information aux usagers
des installations de transport de passagers, plus particulièrement des
communications reliées aux services publics et à la sécurité du public.
1.2 La présente norme a été établie de façon à être…
1. SCOPE
1.1 This provisional standard applies to symbols intended for use in
communicating information to users of passenger transportation
facilities, with emphasis on messages related to public services and
safety.
1.2 This standard is intended to provide compatibility with existing
standards such as CAN3-Z321-77 "Signs and Symbols for the…
1. Scope
1.1 This Standard outlines the technical properties of and specifications for a line impedance stabilization network (LISN) used in the measurement of conducted electromagnetic emissions in the frequency range 0.01 to 30 MHz.
1.2 The LISN is applicable to the measurement of electromagnetic interference voltages originating from electrical apparatus and conducting into the public…
Semiconductor devices. Integrated circuits. Part 2: Digital integrated circuits
This publication gives standards for the following categories or sub-categories of devices:
-Combinatorial and sequential digital circuits;
-Integrated circuit memories;
-Integrated circuit microprocessors;
-Charge-transfer devices.
Should be used together with IEC 747-1 and 748-1.
Graphical symbols for diagrams. Part 1: General information, general index. Cross-reference tables
Contains general information, a general index and correspondence tables for using publications of the 617 series, as well as a grid for use with computer-assisted design systems.
Please note that parts 2 to 11 are available in database format.
Guide to voltage fluctuation limits for household appliances (relating to IEC Publication 60555-3)
IEC 60555-3 specifies limits for the voltage fluctuations that may be produced by an individual appliance and gives methods of test and calculation. The purpose of this report is to explain the way in which the limits and test methods were developed so as to help understanding of the standard and the way in which it should be used. After reviewing the need for voltage fluctuation limits, the…
Guide relatif aux limites des fluctuations de tension dues aux appareils électrodomestiques (en rapp...
La CEI 60555-3 indique les limites des fluctuations de tension qu'un appareil électrodomestique pris individuellement peut produire et elle fournit les méthodes d'essai et de calcul. Le but est d'expliquer comment ces limites et méthodes d'essai ont été développées afin d'aider à comprendre la norme et la façon de l'appliquer. Après une analyse de la nécessité de…
Safety requirements for mains operated electronic and related apparatus for household and similar ge...
Applies to receiving apparatus for sound or vision, amplifiers, load and source transducers, motor-driven apparatus (radio-gramophones, tape recorders and sound-film projectors, etc.) which are to be connected to the mains, directly or indirectly, and which are intended for domestic and similar indoor use.
Gives a safety and classification terminology based on IEC 536. Specifies requirements for…
Règles de sécurité pour les appareils électroniques et appareils associés à usage domestique ou à us...
S'applique aux matériels comme les récepteurs de radiodiffusion sonore et visuelle, les amplificateurs, les transducteurs de charge et de source et ses appareils à entraînement par moteur (radio-électrophones, magnétophones et projecteurs de films sonores) qui doivent être raccordés au réseau directement ou indirectement et qui sont destinés à des usages domestiques en intérieur ou à des…
