NEC® Changes · 2020 NEC®

690.43 PV equipment grounding and bonding

RevisedChanged in the 2020 NEC® (from the 2017 NEC®)· Updated October 24, 2026

What changed in 690.43

The extra bonding rules in 250.97 for circuits over 250 volts to ground now apply only to solidly grounded PV systems.

Point by point

  • The over-250-volt bonding rules in 250.97 now apply only to solidly grounded PV circuits.

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  • 2 more points on exactly what changed
  • The 2017 rule next to the 2020 rule, side by side
  • Why it changed
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This section across NEC® editions

2020 NEC®RevisedYou're here

The extra bonding rules in 250.97 for circuits over 250 volts to ground now apply only to solidly grounded PV systems.

2023 NEC®No change

This section did not change from 2020 to 2023.

2026 NEC®Revised

New 690.43(E) covers the flexible grounding and bonding conductors that run to moving parts of a PV array, like trackers.

Open the 2026 page →

More 2020 changes in Article 690

This is a plain-English summary, not the NEC®'s exact wording. Always check the full section in the NEC® edition your area has adopted, plus any local amendments.

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