Iec 6193612021 Link ✦ Must Watch

You mentioned the "link." In the context of this standard, the "link" is often interpreted as the connection between IEC 61936-1 (the installation standard) and IEC 61936-2 (which covers definitions).

However, the deeper link is to the concept of Earthing (Grounding). This is often considered the most critical chapter of the standard. It dictates how the massive fault currents from a lightning strike or a short circuit are dissipated into the earth. iec 6193612021 link

If this "link" to the ground is broken or poorly designed (violating the standard), the ground around the substation can become electrified. A person walking nearby—feeling safe because they aren't touching any equipment—could be electrocuted just by standing on the grass. This phenomenon, called "Step and Touch Potential," is a central character in the horror stories this standard is written to prevent. You mentioned the "link

❌ Using 2010 clearances for systems with arresters – 2021 reduces some gaps.
❌ Ignoring Annex B for soil resistivity modeling – leads to unsafe touch voltages.
❌ Applying AC rules to DC installations – that is IEC 61936-2.
❌ Overlooking fire separation between control buildings and HV equipment – clause 9.3 is strict. called "Step and Touch Potential

In your technical specification, write:
”The substation shall be designed and erected in accordance with IEC 61936-1:2017 including Amendment 1:2021 (Consolidated Version) . All clearances, earthing, and safety distances shall meet or exceed Clause 6 and Clause 9 requirements.”

No. The 2021 date only applies to Amendment 1. The core document remains the 2017 edition. You must buy the “Consolidated version” (CSV) which includes the amendment.

The 2021 amendment mandates a risk assessment per IEC 62305-2. If the risk exceeds tolerable levels, a Lightning Protection System (LPS) Level I or II is required.