SUMMARY
The minimum cross-section for equipotential link conductors for currents above 250A must be no less than half the cross-sectional area of the phase conductors, as outlined in IEC standards. Specifically, when no devices are fixed to exposed conductive parts, a minimum conductor size of 2.5 mm² is required. This information is supported by resources from a 2016 Webinar on Grounding and specific requirements for large installations like the ATACAMA RadioTelescope. For detailed guidelines, refer to the provided PDF links.
PREREQUISITES
- Understanding of IEC grounding standards
- Familiarity with conductor sizing principles
- Knowledge of NEC regulations
- Basic electrical engineering concepts
NEXT STEPS
- Review the 2016 Webinar on Grounding per IEC and NEC
- Examine the ATACAMA RadioTelescope grounding requirements
- Study the relationship between phase conductors and grounding conductor sizing
- Explore additional IEC and NEC standards relevant to equipotential bonding
USEFUL FOR
Electrical engineers, safety compliance officers, and professionals involved in grounding and bonding systems for high-current installations will benefit from this discussion.
