N0320 - Ground Rod Installation on Padmount Switchgear Vault

Revision 3
Feb 15, 2019

Compatible Unit Item Description Qty Mid
N0320 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 Tap, Bar #2 Sol-350 Str 4 217150
  D Nut, Unistrut ½" 8 761082
  E Wire, 4/0 Cu Bare SD 19-Str 50' 847907
  F Wire, 1/0 Cu Bare MHD 7-Str 60' 847923
  G Clamp, Ground Rod 5/8" 4 880709
  H Rod, Ground 5/8" x 8' 4 902206
  I Connector, C-Crimp Cu 3/0-4/0 to 1/0-2/0 2 1003001
  J Clamp, Equip Ground Cu #3 Sol-4/0 Str 8 1003311

Notes:

  1. Use 4/0 copper for ground loop inside vault and switch cabinet. Use 1/0 copper for connecting ground plates 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.