Coaxial cables remain an indispensable component in satellite, TV, and network technology. Thanks to their robust construction, they ensure reliable signal transmission – even at high frequencies. However, many problems arise from bad cable stripping. With the right knowledge and the right wire stripping tools, this process can be performed cleanly and safely. A correctly stripped coaxial cable not only ensures optimal signal quality but also extends the lifespan of the entire installation.
What is a coaxial cable? – Structure and function
A coaxial cable, whose name is derived from “coaxial” and means “same axis”, is characterized by its multi-layered, concentric structure. It consists of four main components:
– Außenmantel (meist aus PVC oder PE)
– Abschirmung (Kupfergeflecht und Alufolie)
– Dielektrikum (Schaumisolierung) und
– dem Innenleiter (meist aus massivem oder mehrdrähtigem Kupfer).
The design provides excellent shielding against interference and enables the transmission of high frequency ranges. Typical applications for coaxial cables include satellite TV, DVB-C, CCTV, cable internet, and RF measurement technology.
Why is stripping coaxial cables so challenging?
Stripping coaxial cables requires special care due to the risk of damaging the delicate internal structure. A precise cut depth is crucial to avoid denting or scratching the dielectric. The inner conductor and shield must remain cleanly separated to ensure optimal signal transmission. Furthermore, there are differences depending on the cable type, such as RG6, RG58, or RG59, each of which has specific stripping requirements.
Step-by-step instructions: stripping coaxial cable
Setup
- Prepare suitable wire stripping tool (e. g. Wire stripping tool SECURA Coaxi No. 1)
- Determine cable types (diameter, structure). The following blog article is helpful for this: Sizes of cables and wires
Application steps:
- Unlock the cable stripper’s safety lock and open the cable stripper.
- Insert the cable to the required length, using the length scale on the inside, into blade pair 1.
- Close the cable stripper and, applying light pressure, pull it 1/4 turn to the right and left to score the outer jacket. Do not cut completely through the insulation to avoid damaging the shielding. Caution: Jacket thickness may vary slightly depending on the cable manufacturer.
- Open the cable stripper again and reposition the tool toward the end to be stripped.
- Close the tool and bend the cable slightly up and down with the cable stripper to break the jacket.
- Now peel off the outer jacket with the acble stripper. Then push the underlying shielding backwards over the outer jacket behind it.
- Turn the cable stripper over and insert the exposed dielectric, including the required stripping length, into blade pair 2. 8. Press the tool down completely, make ¼ turn to the right and left and remove the dielectric directly with the cable stripper.
- Press the tool down completely, make ¼ turn to the right and left and remove the dielectric directly with the cable stripper.
Here you can find the application video
Pro tip: The perfect tool for coaxial cables
The SECURA Coaxi No. 1 (Art. No. 30600) is a handy and intuitive cable stripper for all common coaxial cables. With a little sensitivity and experience, it is the perfect wire stripping tool for a wide range of different coaxial cables within the working range of 4.8 to 7.5 mm Ø (e.g., RG6, RG59, RG58). In two steps, it removes
• First the outer jacket
• Then the dielectric.
These steps are immediately identifiable by the color-coded numbers “1” and “2” on the tool.
Important for compression connectors: The stripping steps should be performed in reverse order – side 2 first, then side 1. For coaxial cables with compression connectors, reverse the application steps – side 2 first, then side 1.
All blades of the tool are coated with TiN for a longer service life.
Conclusion – How to make every coaxial connection work
A properly stripped coaxial cable is the foundation for a reliable and long-lasting connection. With the necessary know-how and the right tools, you can achieve your goal safely and efficiently. An important tip: Always make sure your tools are designed for the specific cable type.