N0321 - Ground Rod Installation on Splice Vault or Future Switchgear Vault

Revision 2
Feb 15, 2019

Compatible Unit Item Description Qty Mid
N0321 A Washer, SS Rd 1-¼” Flat 9∕16” Hole 8 191627
  B Connector, C-Crimp Cu 3/0-4/0 to 3/0-4/0 9 211540
  C Nut, Unistrut ½" 8 761082
  D Wire, 4/0 Cu Bare SD 19-Str 50' 847907
  E Wire, 1/0 Cu Bare MHD 7-Str 60' 847923
  F Clamp, Ground Rod 3/4" 4 880717
  G Rod, Ground 5/8" x 8' 4 902206
  H Connector, C-Crimp Cu 3/0-4/0 to 1/0-2/0 2 1003001
  I Clamp, Equip Ground Cu #3 Sol-4/0 Str 8 1003311

Notes:

  1. Use 4/0 copper for ground loop inside vault. Use 1/0 copper for connecting ground rods to 4/0 copper ground loop.
  2. Ground plates are preferred for grounding during vault installation. Refer to Compatible Units N0310 - N0311.
  3. Tops of ground rods to be a minimum of 3" below final grade.