Product Features -Aixton RG59

Product Features 1. Check the integrity of the insulation medium
The cross-section of standard coaxial cable is very round, and the outer conductor and aluminum foil of the cable are attached to the outer surface of the insulating medium. The more rounded the outer surface of the medium, the smaller the gap between the aluminum foil and its surface, and the less rounded the larger the gap. Practice has proved that the smaller the gap, the better the performance of the cable. In addition, the air in the large gap can easily invade the shielding layer and affect the service life of the cable [10].
2. Measuring the consistency of coaxial cable insulation medium
The fluctuation in the diameter of the insulating medium of a coaxial cable mainly affects the echo coefficient of the cable. This inspection can cut out the insulation medium of a section of the cable, and use a micrometer to carefully check the outer diameter of each point to see if it is consistent [10].
3. Measuring the braided mesh of coaxial cable
The textile network cable of the coaxial cable plays an important role in the shielding performance of the coaxial cable, and is also the return line of the power supply in the centralized power supply cable TV line. Therefore, the quality inspection of the coaxial cable must check whether the textile network is tight and flat. The method is: Cut open the outer sheath of the coaxial cable, cut a small section of the coaxial cable braid, and identify the number of braids. If it matches the given index value, it is qualified. In addition, use a spiral micrometer to measure the single textile network cable. At the same price, the thicker the wire diameter, the better the quality [10].
4. Check the quality of aluminum foil
Aluminum foil plays an important shielding role in coaxial cables. It plays an important role in preventing external open-circuit signal interference and cable TV signal confusion. Therefore, the quality of aluminum foil should be checked for new coaxial cables. First, cut open the sheath layer and observe whether the surface of the braided network cable and aluminum foil layer maintains good gloss; secondly, take a section of cable, wrap it tightly around the small metal shaft, straighten it and twist it in the opposite direction, repeat it several times, and then cut it Check the cable sheath layer to see if the aluminum foil is cracked. You can also cut out a small piece of aluminum foil and repeatedly rub and stretch it in your hands. If it remains unbroken after repeated rubbing and stretching, the product with a certain toughness is considered a qualified product, otherwise it is a defective product. [10].
5. Check the tightness of the outer protective layer
The outer sheath of high-quality coaxial cables is wrapped very tightly, which can reduce the gap inside the shielding layer, prevent air from entering and causing oxidation, and prevent the relative sliding of the shielding layers from causing electrical performance drift. However, if the wrapping is too tight, it will cause inconvenience in stripping. , increasing the difficulty of construction. The inspection method is to take a 1m long cable and remove the sheath at the end, so that the core cannot be pulled out with force [10].