I.S.HD 384.4.442 S1:1998
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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
Hardcopy , PDF
25-01-2012
English
01-01-1998
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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.
| DocumentType |
Standard
|
| Pages |
30
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Withdrawn
|
| Standards | Relationship |
| HD 384.4.442 : 200S1 | Identical |
| HD 384.1 : 200S2 | ELECTRICAL INSTALLATIONS OF BUILDINGS - PART 1: SCOPE, OBJECT AND FUNDAMENTAL PRINCIPLES |
| IEC TS 60479-1:2005+AMD1:2016 CSV | Effects of current on human beings and livestock - Part 1: Generalaspects |
| HD 384.4.41 S2:1996/A1:2002 | ELECTRICAL INSTALLATIONS OF BUILDINGS - PART 4: PROTECTION FOR SAFETY - CHAPTER 41: PROTECTION AGAINST ELECTRIC SHOCK |
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