LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 4-44: PROTECTION FOR SAFETY - PROTECTION AGAINST VOLTAGE DISTURBANCES AND ELECTROMAGNETIC DISTURBANCES
International Electrotechnical Committee
FOREWORD
INTRODUCTION
440.1 Scope
440.2 Normative references
441 (Vacant)
442 Protection of low-voltage installations against
temporary overvoltages due to earth faults in the
high-voltage system and due to faults in the low-voltage
system
443 Protection against transient overvoltages of atmospheric origin
or due to switching
444 Measures against electromagnetic influences
445 Protection against undervoltage
Annex A (informative) - Examples of calculated risk level CRL
for the use of SPDs
Annex B (informative) - Guidance on overvoltage control by
SPDs applied to overhead lines
Annex C (informative) - List of notes concerning certain countries
Bibliography
Defines requirements for the safety of electrical installations in the event of voltage disturbances and electromagnetic disturbances generated for different specified reasons.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 64 |
