Minnesota Department of Transportation

511 Travel Info

Approved/Qualified Products

Grounding

Ground Rod Clamp

Product Manufacturer Approval Date
Clamp # 231 Thompson Lightning Protection Inc. December-15-2010

Lightning Protection Conductor

Product Manufacturer Approval Date
Lightning Copper Conductor No. 48 Thompson Lightning Protection Inc. March-15-2010
Lightning Copper conductor No. 32T Harger Inc. December-15-2010

Lightning Rod Clamp

Product Name Manufacturer Approval Date
Clamp #230 Thompson Lightning Protection Inc. September-21-2010

Line Termination Unit - 1 Cable Application, i.e. Typically Cabinets

Product, Part Number Manufacturer Approval Date
Model 2310FC LTU, #61608 Norscan April-15-2011
Model 444-150-352 ACT September-22-2010

Parallel Splicer Clamp

Product Manufacturer Approval Date

Parallel Splicer Clamp # 141CT-4

Thompson Lightning Protection Inc. March-15-2010

1-Bolt Parallel Connector # 212TD9/16

Harger Inc. February-25-2009

Sheath Grounding Unit - 2+ Cable Application, i.e. Typically Vaults

Product , Part Number Manufacturer Approval Date
Model 2706 SGU, #61593 Norscan April-15-2011
Model 444-150-302 ACT September-22-2010