Description
Standard Grounding Kit for Corrugated Coaxial Cable and Waveguide Systems
Commercial-grade grounding kit engineered to route 100kA peak current surges safely from 1/4" and 3/8" coaxial cables and elliptical waveguides directly to earth ground.
The Purchase Radios 223158-2 (also cataloged under SKU 223158) is a commercial-grade standard grounding kit engineered to provide a low-resistance migration path for hazardous atmospheric electrical surges and lightning strikes. Integrating the Purchase Radios 223158-2 grounding kit into your antenna tower network or building entry pass-through junctions routes high-voltage surges safely into the earth grounding grid before they reach delicate base station receivers and mobile transceivers. Optimized for smaller high-frequency lines with outer diameters between 0.245 in (6.22 mm) and 0.380 in (9.65 mm), this system wraps around 1/4-inch and 3/8-inch corrugated coaxial cables as well as elliptical waveguides including EW240, EW380, WR28, WG22, R320, WR42, WG20, and R220 runs.
Built to comply with military and international grounding standards including MIL-STD-188-124A and IEC 1024-1, this kit features a tinned-copper grounding strap that forms a comprehensive 360-degree contact surface over the cable shielding matrix without crushing the dielectric layer. The 24-inch (609.6 mm), 6-gauge PVC-jacketed copper bonding conductor terminates in a factory-attached two-hole compression lug for secure mechanical bolting to ground bars. To guarantee complete IP68 submersible moisture-sealing protection across demanding outdoor field environments, the assembly includes a two-part weatherproofing kit comprising heavy butyl rubber tape and industrial black vinyl PVC electrical wrap.
Key Features & Benefits
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100kA Peak Current Surge Handling: Tested under MIL-STD-1757 protocols to withstand 100,000-amp current discharges without structural breakdown.
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Factory-Attached Two-Hole Lug: Features a pre-terminated two-hole copper compression lug for clean mechanical bonding to standard ground bars.
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360-Degree Tinned Copper Strap: The tinned-copper contact strap wraps evenly around the coax outer shield for a low-resistance current path.
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Complete Weatherproofing Included: Ships with butyl rubber sealant tape and black PVC electrical tape to form an IP68-rated environmental seal.
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Extreme Environmental Resistance: Tested against blowing rain (MIL-STD-810 Method 506), corrosion (MIL-STD-1344 Method 1001), freezing rain (Method 521), and UV exposure (Method 505).
Specifications
| Attribute |
Details |
| Brand |
Purchase Radios |
| Model/SKU |
223158-2 / 223158 |
| Nominal Coax Cable Size |
1/4 in & 3/8 in Corrugated Coax |
| Compatible Waveguide Sizes |
EW240, EW380, WR28, WG22, R320, WR42, WG20, R220 |
| Compatible Cable Diameter Range |
0.245 in to 0.380 in (6.22 mm to 9.65 mm) |
| Cable Jacketing Removal Length |
2.2 in to 2.3 in (55.9 mm to 59.1 mm) |
| Bonding Conductor Wire Size |
6 Gauge Copper Wire (PVC Jacketed) |
| Bonding Conductor Length |
24 in (609.6 mm) |
| Lug Attachment & Type |
Factory-Attached Two-Hole Lug (3/8 in Thread) |
| Current Surge Capability |
100,000 Amps Peak Surge (MIL-STD-1757) |
| Ingress Environmental Rating |
IP68 (IEC 60529:2001 Submersible) |
| Operating Temperature Range |
-40°F to +185°F (-40°C to +85°C) |
What’s Included
| Description |
SKU/Model |
Status |
| Standard Tinned Copper Grounding Strap with 24 in Lead |
223158-2 |
Included |
| Factory-Attached Two-Hole Copper Compression Lug |
Two-Hole Lug |
Included |
| Roll of Butyl Rubber Sealant Tape (24 in) |
42615-10 |
Included |
| Roll of Black PVC Electrical Tape |
9905-71 |
Included |
| Stainless Steel Attachment Mounting Hardware |
Hardware-Kit |
Included |
Recommended Accessories
Compatible Mobile Radios & Base Stations
More Resources
Frequently Asked Questions
What is the exact difference between the 223158-2 and 223158-4 grounding kits?
The primary difference lies in the grounding lug connection. The 223158-2 variation features a factory-attached two-hole compression lug, whereas the 223158-4 version includes a separate one-hole lug meant for custom field attachment during installation.
Can this grounding kit be deployed on standard braided LMR400 or CNT400 cables?
Yes, the compatible outer cable diameter range of 0.245 in to 0.380 in accommodates standard 1/4" and 3/8" corrugated coax lines, small braided cables, and elliptical waveguides.
Is the weatherproofing tape necessary during the installation?
Yes, applying the included butyl rubber sealant tape and PVC electrical wrap layers according to factory installation specifications is mandatory to achieve an IP68 waterproof rating and prevent moisture corrosion.
What peak lightning surge capacity is the 223158-2 rated to handle?
The Purchase Radios 223158-2 is tested under MIL-STD-1757 criteria to safely withstand up to 100,000 amperes (100kA) peak current surge.
What size hole spacing is required for the grounding lug?
The factory-attached two-hole lug uses standard 3/8-inch thread hardware designed for standard two-hole master ground bars.
Warranty
10-year manufacturer’s warranty.
