Recommendations for the classification of materials for the insulation of electrical machinery and apparatus in relation to their thermal stability in service— 31 стр.
Amendment 2 - Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 3: Stationary use at weatherprotected locations— 8 стр.
Classification of environmental conditions. Classification of groups of environmental parameters and their severities, Stationary use at weatherprotected locations— 48 стр.
International Electrotechnical Vocabulary - Electrical and electronic measurements and measuring instruments - Part 311: General terms relating to measurements - Part 312: General terms relating to electrical measurements - Part 313: Types of electrical measuring instruments - Part 314: Specific terms according to the type of instrument— 257 стр.
Amendment 1 - Classification of environmental conditions - Part 3-3: Classification of groups of environmental parameters and their
severities - Stationary use at weatherprotected locations— 9 стр.
Specification for special design and other features of alternating current watthour meters for active energy for use in the UK (Accuracy Classes A and B)— 34 стр.
