Surge Protection Component Properties - RWS200 - RWCC - AWS310-SITE - AWS310 - FOC201 - AWS430 - RME111

Grounding and Lightning Protection in Vaisala Outdoor Installations Technical Reference

Document code
M211786EN
Revision
B
Language
English (United States)
Product
RWS200
RWCC
AWS310-SITE
AWS310
FOC201
AWS430
RME111
Document type
User guide

Components and their properties:

  • Air gaps are used especially in medium voltage distribution lines. They can handle very high surge currents, without very precise voltage limitation.
  • Gas discharge tubes (GDT) can tame fairly high surge currents, but are relatively slow to trigger.
  • Metal oxide varistors (MOV) are suitable for medium to high surges and quite fast, but do not limit the voltage very precisely.
  • Transient-voltage-suppressor (TVS) diodes can take only small surge currents, but have an accurate clamp voltage and are very fast.