NEN 1010 §411
Touch voltage (UL)
Aanrakingsspanning (UL)
The voltage appearing across the human body when touching a conductive part that has become live under a fault. NEN 1010 uses a conventional limit UL of 50 V AC / 120 V DC; above it the protection must clear the fault within the prescribed disconnection time (§411). The permissible duration drops sharply as the voltage rises.
Practical example
EN text
Common mistake
Bulk mistake EN
See also
Related terms
In-depth guides
- → Earthing and earthing systems (TN, TT, IT)
- → §443 Surge Protection (SPD)
- → IEC 60364-4-41 Conventional touch voltage limit UL — 50V and 25V
- → §715 / IEC 60364-7-715 §715 — Extra-low-voltage lighting installations
- → NEN-EN 50160 Flicker (voltage fluctuations) — NEN-EN 50160
- → §551 Emergency Generators & Low-Voltage Generation — §551
- → Praktijk (ANSI 59N) Neutral voltage displacement protection (ANSI 59N) — earth-fault detection via the displacement voltage in an ungrounded or resonant-earthed network
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