Electrostatic discharge

Illustrated explanation

Dissipating stored charge and controlling discharge

2Electrostatic discharge
Dissipating stored charge and controlling dischargeCallout 1: Dissipative path. Callout 2: Electrostatic discharge. Charge can accumulate on a surface and discharge across a gap. A controlled dissipative path reduces charge accumulation only within its specified material and grounding arrangement. Current term: Electrostatic discharge, callout 2. 1+++Dissipative path 2+Electrostatic discharge
  1. Static-dissipative material

    Charge flows through a specified controlled path. Verify the material condition, resistance range and connection to the required reference.

  2. Electrostatic dischargeThis term

    A potential difference can drive a brief discharge across a gap. Assess the system, handling conditions and susceptible equipment.

Charge can accumulate on a surface and discharge across a gap. A controlled dissipative path reduces charge accumulation only within its specified material and grounding arrangement.

Conceptual charge paths. Static dissipation, protective bonding and ignition-risk assessment are distinct requirements; no safe resistance or discharge-energy threshold is shown.

ReferencesIEC 61340-5-1:2024 — Protection from electrostatic phenomenaIEC 60079-0 — Explosive atmospheres — General requirements