For the outer jacket diameter ranges from 7mm-8mm, which include cable such as Andrew (Commscope) ‘s FSJ 1-50, FSJ1RN 50, CNT300; Eupen’s 5042 Hiflex; RFS’s scf 14-50J, Leoni Rosenberger’s 1/4S; and RG 59,RG6,Belden 9248,LMR 300,ICN 48.

We developed 2 types grounding for them.

Gemel type grounding kit

This type grounding kit is a new designed for reliable outdoor grounding of today’s usual corrugated coaxial cable and RG cables. With compact design & high quality material, gemel type grounding kit offers Quick and easy installation, No loose piece parts, Corrosion resistant & reusable.

With the below cable, you can choose the right type grounding kit for a specified size.

The 1/4″ framework grounding kit consist of EPDM clamp &  AWG6 grounding cable terminal mounted .  With compact design with Butyl, this kind of grounding kit offer a coaxial cable solution of soon installation and cost saving.

The detail technical specification is as below:

Installation instructions download (PDF)

Step 1:
First you will need to strip away about 40mm of the outer plastic. Do not cut the cable too deep.

Step 2:
Clamp the grounding kit on the section of cable that was stripped away. Please make sure that the metal sections are sealed properly.

 
Step 3:

Tighten the screws on the grounding kit and connect the grounding wire to an earth.

Besides, they are a member of the Wireless Access Providers Association (WAPA), a non-profit organisation geared towards issues of self-regulation and compliance, who counts amongst its membership many of the wireless ISPs that operate in the unlicensed ISM bands.

After technical confirmation & test, our newly developed gemel grounding kits & buss bars attract an order from Lebanon last month, and were export to the port Beirut these days.

The company, built most of Lebanon’s satellite earth stations for the Lebanese Ministry of Telecommunication and private TV earth stations,  is one of the very few companies that provide wireless internet.

In the region of Middle East and Africa(MEA) , our customer were the leading operator, and also also introduced BWA/WiMAX services in Lebanon in late 2004 with aproprietary system (based on Motorola Expedience), and has proven that BWA/WiMAX can be a success story even in countries where telecom regulation is unclear and international backhaul is a scarceand expensive resource.

A short description & Scope is as blow & the full documents can be download at the end.

DEPARTMENT OF DEFENSE
Washington DC 20201
Lightning Qualification Test Techniques for Aerospace Vehicles and Hardware

MIL-STD-1757.
1. This Military Standard is approved for use by all Departments and Agencies of the Department of Defense.
2. Beneficial comments (recommendations, additions, deletions) and any permantant data which may be of use in improving this document should be addressed to ASD/ENESS (Code 11), Wright-Patterson AFR, OhiO 45433} by ‘using”the self-addressed Standardization Document Improvement Proposal (DD Form 1426)appearing at the end of this document or by letter.

1. SCOPE

1.1 scope . This document presents a set of standard test waveforms and Techniques for lightning qualification testing of aerospace vehicles and hardware.
The test waveforms presented in this document are intended to reproduce the significant effects of the natural environment and are therefore independent Of vehicle type or configuration. The tests include high voltage and high current physical damage tests of fuel , structural and electrical hardware, as well as indirect effects associated with lightning strikes to externally mounted electrical hardware.
This document does not include design criteria nor does it specify which items should or shouldn’t be tested. The document is written so that test environments can be tailored for each specific program as dictated by the vehicle design, performance, and mission constraints. Acceptable levels of damage and pass-fail criteria for the tests described herein shall be established and agreed upon by the promring agency, regulatory authority, and aerospace vehicle manufacturer.
This document does not yet include specific test techniques or procedures that deal with indirect, or induced , effects of lightning on internal electrical or electronic equipment. As these test techniques are developed and verified, they will be added to the document.

1.2 Application. The test requirements described in this document are applicable to aerospace vehicles and parts or assemblies thereof. When these requirements are in conflict with the lightning test requirements found in the specifications or standards referenced in paragraph 2, the requirements of this document govern. (Note: The term ‘aerospace vehicles” includes fixed/variable wing aircraft, helicopters, missiles, and spacecraft).

1.3 Method of reference. When applicable, test methods contained herein shall be referenced in the individual specification by specifying this standard and the method number.

1.4 Units. The International System of Units, designated S1, is used throughout this document.

……

Dowload the full standard  Grounding test standard: MIL STD 1757A

Download Copper wire/grounding cable cross reference table

Dimensions

Nominal size (waveguide  size): cable size the grounding kit will be used for?

Bonding conductor length: grounding / earthing wire length

Cable jacket removal length, min-max: the cable’s outer jacket removal length

Compatible diameter, min-max: the compatible contact diameter

Electrical specifications

Current handling: grounding kit can handled current

Current handling test method: test method description

Grounding, bonding and shielding test method

Lightning protection test method

General specifications

Cable type: the cable type, corrugated, elliptical, wave guide…

Grounding kit type: grounding type

Color: the grounding kits’ color

Bonding conductor material: the conductor material, normally should be copper

Bonding conductor wire size: wire size, can be based on AWG or mm2

Bonding conductor jacket material: grounding cable’ jacket material

Grounding strap material: copper or aluminium

Includes: components included in the whole set

Lug attachment: copper lug is attached on or not attached

Lug type: lug type, 16-8…

Rivet material: copper or stainless steel

Mechanical specifications

Blowing rain test method: IP test method

Corrossion test method

Freezing rain / Icing test method

Humidity test method

Immersion test method

Operating tempreture: the grounding kit normal operation tempreture

Storage tempreture: the grounding kit storage tempreture

Thread size: the thread size

UV resistance test method

Vibration test method

Packing information

Weight: finally weight

Dimension: packing dimension

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