1. Scope
1.1 This Standard covers hexagon and squate galvanized steel tower bolts and
nuts, in three grades corresponding to SAE Grade 2, SAE Grade 5, and SAE Grade
5.2 and ranging in size from ½ to 1 inch in diameter inclusive.
1.2 These bolts are intended for use in metal structures for electrical power
transmission and substations, metal antenna towers and similar structures.
This…
Maintenance and supervision guide for insulating oils in service
Applies to mineral oils, both uninhibited and inhibited against oxidation, in service, under normal operating conditions, in transformers, switchgear and similar electrical equipment where oil sampling is permissible. This publication is intended to give a common basis on which more complete codes may be prepared when these are necessary. In this Guide, the causes of oil deterioration are…
Essais et dimensions des isolateurs pour hautes tensions continues
S'applique aux isolateurs soumis dans des conditions normales à une tension continue pouvant présenter une ondulation inférieure à 5% de la valeur moyenne de cette tension. Cette publication a le statut d'un rapport.
High-voltage alternating current switch-fuse combinations and fuse-circuit-breaker combinations
This standard applies to three-pole units for public and industrial distribution systems which are functional assemblies of switches including switch-disconnectors and current-limiting fuses and thus able to interrupt:
- any load current up to the rated breaking current of the switch;
- any over-current up to the rated short-circuit breaking current of the combination…
Identification of equipment terminals and of terminations of certain designated conductors, includin...
Applies to the identification and marking of terminals of electrical equipment such as resistors, fuses, relays, contactors, transformers, rotating machines and, whenever applicable, to combinations of such equipment. It also applies to the identification of terminations of certain designated conductors.
Has the status of a basic safety publication in accordance with IEC Guide 104.
Identification of conductors by colours or numerals
Provides rules for the use of certain colours or the use of numerals for the purpose of identification of conductors including busbars.
Has the status of a basic safety publication in accordance with IEC Guide 104.
Graphical symbols for use on equipment. Index, survey and compilation of the single sheets
Establishes uniform graphical symbols, their graphic form, meaning and application. These graphical symbols are placed on equipment or parts of equipment of any kind in order to instruct the persons handling the equipment as to its use and operation; they are also placed on sites and ways where people may assemble, or move, giving them instructions, such as prohibitions, warnings, rules or limits…
