SIST HD 384.4.46 S1:2000/A1:2000

This Harmonization Document deals with
– non-automatic local and remote isolation and switching measures which prevent or remove
dangers associated with electrical installations or electrically powered equipment; and
– switching for the control of circuits or equipment.

This part of HD 60364 provides requirements for the protection of live conductors from the effects of overcurrents.
This standard describes how live conductors are protected by one or more devices for the automatic
disconnection of the supply in the event of overload (Clause 433) and short-circuit (Clause 434) except in cases where the overcurrent is limited in accordance with Clause 436 or where the conditions described in 433.3 (omission of devices for protection against overload) or 434.3 (...view more

Nizkonapetostne električne inštalacije - 4-42. del: Zaščitni ukrepi - Zaščita pred toplotnimi učinki (IEC 60364-4-42:2010, spremenjen)
Low voltage electrical installations - Part 4-42: Protection for safety - Protection against thermal effects
Osnova:   HD 60364-4-42:2011
ICS:   29.120.50, 91.140.50
This part of IEC 60364 applies to electrical installations with regard to measures for the protection of persons, livestock and property against
– thermal effects, combustion or degradation of mater...view more

IEC 60364-4-43:2008 provides requirements for the protection of live conductors from the effects of overcurrents. IEC 60364-4-43:2008 describes how live conductors are protected by one or more devices for the automatic disconnection of the supply in the event of overload (Clause 433) and short-circuit (Clause 434) except in cases where the overcurrent is limited in accordance with Clause 436 or where the conditions described in 433.3 (omission of devices for protection against overload) or 434.3...view more

The rules of this Part of IEC 60364 are intended to provide requirements for the safety of electrical installations in the event of voltage disturbances and electromagnetic disturbances generated for different specified reasons. The rules of this part are not intended to apply to systems for distribution of energy to the public, or power generation and transmission for such systems (see the scope of IEC 60364-1) although such disturbances may be conducted into or between electrical installations...view more

Concerns the precautions to be taken where a drop in voltage, or a loss and subsequent restoration of voltage could imply dangerous situations for persons or property or where a part of the installation or current-using equipment may be damaged by a drop in voltage.

This Harmonization Document deals with
– non-automatic local and remote isolation and switching measures which prevent or remove
dangers associated with electrical installations or electrically powered equipment; and
– switching for the control of circuits or equipment.