Safety of household and similar electrical appliances - Part 2-39: Particular requirements for comme...
Deals with the safety of electrically operated commercial multi-purpose cooking pans not intended for household use, their rated voltage being not more than 250 V for single-phase appliances connected between one phase and neutral and 480 V for other appliances. Is to be used in conjunction with IEC 60335-1 (third edition).
Tool chucks (end mill holders) with clamp screws for flatted parallel shank tools — Part 2: Connecti...
ISO 5414-2 specifies the dimensions of two types of connection: chucks with 7/24 taper shanks for tool shanks with either single flat or a double flat and chucks with Morse taper shanks for tool shanks with a single flat only. Morse tapers shall conform with ISO 296 and ISO 5413 and 7/24 tapers shall conform with ISO 297 and ISO 2583. Flatted parallel shanks installed in these chucks shall…
Guide to the lightning impulse and switching impulse testing of power transformers and reactors
Gives guidance and explanatory comments on the existing procedures for lightning and switching impulse testing of power transformers to supplement the requirements of IEC 60076-3. Also generally applicable to the testing of reactors, see IEC 60289, modification to power transformer procedures being indicated where required. Information is given on wave shapes, test circuits including test…
Disturbances in supply systems caused by household appliances and similar electrical equipment - Par...
Applicable to electrical and electronic equipment for household and similar use, intended to be connected to low-voltage a.c. distribution systems. Gives general requirements and maximum permissible values of harmonics components of the input current which may be produced by a piece of equipment tested individually under specified conditions, practical methods of type tests and guidance on the…
Disturbances in supply systems caused by household appliances and similar electrical equipment - Par...
Specifies limits of voltage fluctuations which may be produced by an individual appliance, when tested under specified conditions and methods of test and calculation (these requirements should not be confused with requirements relating to the quality of the supply connected to the consumer).
Essais sur les gaines extérieures des câbles, qui ont une fonction spéciale de protection et sont ap...
Fournit une gamme d'essais que l'on peut demander pour les revêtements constitués de gaines extrudées quand, en plus de la protection contre la corrosion des couches métalliques sous-jacentes, les revêtements doivent remplir des fonctions spéciales, pour les cas a) et b) suivants, telles que:
a) dans les réseaux à écran isolé:
i) emploi de connection spéciale d'écran, afin de…
Low-voltage controlgear. Part 2: Semiconductor contactors (solid state contactors)
Applies to semiconductor contactors intended for performing electrical operations by changing the state of electric circuits between on state and off state. The main circuit of the semiconductor contactors is intended to be connected to circuits the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c.
Basic environmental testing procedures - Part 2-46: Tests - Guidance to test Kd: Hydrogen sulphide t...
Gives guidance on the effect of hydrogen sulphide on electrical contacts and the significance of the test in IEC 68-2-43 on the behaviour of contacts exposed to such atmospheres.
