The Usage and Installation of Serre-câble d'alimentation
As a cable fixing device, the feeder cable clamp is suitable for communication base stations, direct-release stations, indoor coverage systems, wireless paging and microwave communication systems, and plays a fixed role in the distribution of transmission cables in towers, walk racks, indoors and outdoors, as well as in subways and tunnels, and can be used in different high and low temperature ranges. Feeder clamps are economical, durable and reliable, so they are widely used in many communications projects.
The feeder cable clamp is composed of metal parts and plastic parts. The metal parts, using Q235, 201, 202 and 304 stainless steel and other high-quality materials, and after plated Dacro technology treatment, to achieve surface acid resistance and high toughness performance, so that it can be in the open air for a long time without deformation, non-oxidation. And in order to avoid the installation process caused by hand injury, C-type bracket each sharp edge is used inverted burr process, thus achieving a beautiful appearance and safe double effect.
When the feeder cable is installed with a feeder clamp, if it is vertical, the distance between the feeder clamps is less than 1.5 meters, and if it is horizontal, the distance between the feeder clamps is less than 1 meter.
Requirements for Feeder Cable Clamp
1. Metal parts require a smooth surface, no burrs, scratches and other mechanical damage, no rust.
2. Plastic parts require uniform color, clean surface, no cracks, no bubbles.
3. Pressure resistance for plastic clip: According to the normal installation method to fit the cable clamped in the feeder clamp, apply the specified torque on the fastening nut . After the experiment, the cable is not damaged and the plastic clip is not cracked. Drop the assembled feeder clamp from 3 meters high into the concrete floor in free fall form and repeat 10 times. After the test, the plastic clips and metal parts are not deformed or cracked.
4. Metal anti-bending: According to the normal installation method of the metal fixing piece clamped to the metal frame, apply the specified torque on the fastening nut, maintain for 24 hours. After the experiment, the elastic deformation of clamping port is less than 5mm and the rest is not damaged.
5. Clamping force: Apply a specified force along the axial direction of the normally clamped cable for 24 hours. After the test, the relative displacement of the cable and the plastic clip is not greater than 2mm without mechanical damage. High temperature 85°C, low temperature -40°C and holding force at vibration (The frequency is 10Hz and the amplitude is ± 3mm vibration time of 8 hours).
6. Chemical corrosion: 96 hours of continuous salt spray at 5% NaCl solution (pH between 6.5-7.2), temperature 35°C. After the test, the surface of the metal parts is free of rust, the plastic clips and rubber surfaces are not hardened and cracked.
7. Xenon lamp aging: xenon lamp power 6.5kw, blackboard temperature 63°C, studio temperature 45°C, relative humidity (65±5)%, rainfall cycle 18min/102min (water spray time / no spray time), radiation energy 462W/m2, maintained for 300 hours. After the test, the plastic clips and rubber are free of cracking and hardening.