2020 NEC

[618electrician]

ON a commercial building' new service 2020 NEC do i need a grounded bridge and a surge protector . ????????????????????????????????????????????????????????

 

[Dennis Alwon]

By ground bridge do you mean an intersystem bonding system. If so then yes, with exception

Exception:
In existing buildings or structures where any of the intersystem bonding and grounding electrode conductors required by 770.100(B)(2), 800.100(B)(2), 810.21(F)(2), 820.100, and 830.100 exist, installation of the intersystem bonding termination is not required. An accessible means external to enclosures for connecting intersystem bonding and grounding electrode conductors shall be permitted at the service equipment and at the disconnecting means for any additional buildings or structures by at least one of the following means:

• (1)
  Exposed nonflexible metallic raceways
• (2)
  An exposed grounding electrode conductor
• (3)
  Approved means for the external connection of a copper or other corrosion-resistant bonding or grounding electrode conductor to the grounded raceway or equipment

I believe a surge is also needed

 

[don_resqcapt19]

230.67 in the 2020 code only requires services supplying dwelling units to have surge protection

 

[Dennis Alwon]

230.67 in the 2020 code only requires services supplying dwelling units to have surge protection

I thought I opened the 2020 but apparently I had the 2023 open. Thanks for the update.