KEEPS ON

CURING

KEEPS ON

WORKING

KEEPS ON

LIVING

KEEPS ON

GENERATING GREEN POWER

KEEPS ON

GENERATING

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Terminology

The international standard EN 61 643-11 compiles lightning arresters and surge arresters under the integrated term SPD (Surge Protection Device).

Definition

Impulse Test Classification

Electromagnetic compatibility

Terms and definitions of surge

Course and parameters of lightning voltages and currents

Kinds of surge couplings

Types of surge

General distribution of lightning current when an object is thunderstruck, principle of LV power system protection thanks to cascaded 3-stage protection

Distribution of protected area into the lightning protection zones

Components used in surge protections

Grounding and protective conductors

Power and communication equipment – interrelation

Grounding

Usage of surge separating inductors between particular stages of surge protection

Surge protection backup

The follow currents at the spark gaps application in a protective overvoltage cascades

Recommendation for the installation of 3rd stage surge protection with the high frequency filter

Standardized implementation of the particular surge cascade stages
 
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