HD 384.4.442 : 200S1
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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ELECTRICAL INSTALLATIONS OF BUILDINGS - PART 4: PROTECTION FOR SAFETY - CHAPTER 44: PROTECTION AGAINST OVERVOLTAGES - SECTION 442: PROTECTION OF LOW-VOLTAGE INSTALLATIONS AGAINST FAULTS BETWEEN HIGH-VOLTAGE SYSTEMS AND EARTH
29-01-1997
01-01-2012
Introduction
442.1 General
442.1.1 Scope and object
442.1.2 Power-frequency stress-voltage
442.1.3 Normative references
442.1.4 Symbols
442.2 Earthing arrangements in transformer sub-stations
442.3 Earthing arrangements with regard to type of earthing
systems in low-voltage system
442.3.1 TN-systems
442.3.2 TT-systems
442.3.3 IT-systems
442.4 Power-frequency stress-voltage in low-voltage equipment
of transformer sub-stations
442.4.1 TN- and TT-systems
442.4.2 IT-systems
442.5 Stress-voltage in case of loss of the neutral conductor
in a TN or TT system
442.6 Stress-voltage in case of accidental earthing of an IT
system
442.7 Stress-voltage in case of a short-circuit between a
line conductor and the neutral conductor
Annex A (informative) Clause 9 of prEN 50179 - Earthing systems
Annex B (informative) A-deviations
Gives requirements for the safety of persons and equipment in the low-voltage installation in the event of a fault between the high-voltage system and earth in the transformer sub-station which supplies the low-voltage installation.
| Committee |
SC 64A
|
| DocumentType |
Standard
|
| PublisherName |
European Committee for Standards - Electrical
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| NEN HD 384-4-442 : 1997 | Identical |
| DIN VDE 0100-442:2013-06 | Identical |
| DIN VDE 0100-442:2013-06 | Identical |
| I.S.HD 384.4.442 S1:1998 | Identical |
| UNE 20460-4-442:1999 | Identical |