Rechercher

Specifies the factors which need to be taken into consideration in the selection of methods for the exposure to natural weathering of paint films or systems for the purpose of evaluating their durability. A method is specified which is recommended for the use where no specialized requirements apply. Supplementary information shall be derived from the national standard or shall be the subject of…

Gives detailed notes on the application of the layout. Deals with the titel of the publication, the scope and field of application, describes the details of the subject of the investigation. Specifies the materials, apparatus and characteristics which are to be used. Describes the details of the sample and procedure. Specifies the expression of results particularly those which are to be observed…

For application in equipment containing semiconductor devices for circuits up to 1000 V a.c. to circuits of nominal voltages up to 1500 V d.c. Establishes characteristics of semiconductor fuse-links in such a way that they can be replaced by other fuse-links having the same characteristics provided their dimensions are identical. Defines standard conditions for operation in service,…

Applies to string insulator units of the can and pin type and also of the long rod type as well as to the fittings used with such insulators. Defines dimensions of a series of clevis and tongue couplings to permit the assembly of insulators or fittings supplied by different manufacturers. Note: - For co-ordination between standardized dimensions and strength classes of cap and pin type…

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…

Prescribes specified values for the electrical and mechanical characteristics and for the principal dimensions of string insulator units of the long rod type with insulating parts of ceramic material intended for a.c. overhead lines with a nominal voltage greater than 1 000 V and a frequency not greater than 100 Hz. The smallest insulator unit standardized has a lighting impulse withstand voltage…

1. Scope 1.1 Before an attempt can be made to measure or gauge the requirements specified on engineering drawings or specifications, to ascertain whether an actual size or value meets the specified limits, it is essential to establish a precise interpretation of the limiting values, and the standard conditions under which they shall be measured. It is the intent of this standard to provide…

1. Scope 1.1 This Standard applies to electrically operated clothes washing and dishwashing machines including such washing machines in combination with other devices (such as combination washing and drying machines) for potentials of 600 volts or less, intended to be used in accordance with the rules of the Canadian Electrical Code, Part I. For convenience only, the short terms clothes…

1. Scope 1.1 This Standard applies to complete flue-connected, oil-fired steam and/or hot-water boilers, provided with automatic control devices. 1.2 This Standard applies to low pressure boilers intended for commercial and industrial use having an input of, or in excess of, 3 gph (US) (approximately 400,000 Btuh) and to high pressure boilers regardless of intended use or input. Note…

1. SCOPE 1.1 This Standard applies to PVC protectie covering over paper-insulated metallic-sheathed power cables to protect metallic sheath against mechanical damage during installation, and against corrosion. Note: For abnormal installations, such as when high transient voltages may appear on the metallic sheath, it may be necessary to require a greater thickness of polyvinyl chloride…