Spiral vibration dampers, also known as helical vibration dampers, are used in the overhead transmission line industry to reduce the vibrations that occur on the conductor due to wind or other external factors. These dampers are typically made of a spiral-shaped metallic wire, which is wrapped around the conductor at regular intervals along its length.
The application of spiral vibration dampers on transmission lines helps to reduce the amplitude of conductor vibrations, which in turn reduces the stress on the line, and prevents damage and failure of the transmission system. These dampers can be installed on overhead transmission lines for both AC and DC systems.
In addition to reducing conductor vibration, spiral vibration dampers also provide protection against galloping, which is a large-amplitude, low-frequency vibration that can occur when the wind blows across the conductor. This phenomenon can cause significant damage to the transmission line and is a major concern for power companies.
PVC Bird-Flight Diverter PVC spiral vibration reducer damper Preformed Cable Fittings 1.Usage and characteristics The Preformed Line Product flight Diverter is designed for use on overhead conductors to create greater visibility for avian flight paths on overhead lines and tower down guys. Offering little wind resistance, it reduces hazards to both lines and birds. For low and medium voltage construction, apply flight Diverter to phase conductors (bare or jacketed). For high voltages, it is typically used on shield wire.Flight Diverter is lightweight, offers little wind resistance and is easily and quickly applied by hand or hot stick. The positive grip on the conductor is designed to ensure that flight Diverterter remains in the applied location and does not move along the span under Aeolian vibration or other conditions. 2Materials: Manufactured from rigid high impact polyvinyl chloride (PVC), Fly Diverterter possesses excellent chemical resistance, strength properties and will retain good physical characteristics within a range of extreme temperatures. Industrial fumes and salt water cannot seriously degrade the properties of rigid PVC. 3. Packing /shipping/ Terms of Payment Packaging: according to the concrete product cartons,wooden cases (as customer's requirements) Delivery: usually,it will take about two weeks for the order of 10000 sets for production Terms of Payment : By T/T 4.The product is also named as follows: bird frightening device
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It adapts to industrial workshops and high comfortable concourses because of great range of air volume.Not only it can be installed in a large public place which storey height is very high,but also can be installed in interior which storey height is no higher than 3.8 meters,especially in concourses where the difference of temperature is from -10K to +15k. Characteristics: 1.Air is supplied in spiral shape,inductive is high,temperature drops rapidly and noise is low. 2.Can be used in VAV air-conditioning system.
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Resistor Zx15 series resistor, open type, is applicable for the start, timing, braking and discharge in distribution system of 50hz, 660v ac, 440v dc. The capacitor is up to 4.6kw, fixed by aludirome with rounded spiral tubular type resistor element. With shockproof and unbreakable advantages, it can take the place of z1 series resistor. Features: Altitude does not exceed 2, 500m The ambient temperature between -25pc and +40pc, average temperature less than +35pc during 24 hours Relative humidity below 85%, between -5pc and +20pc Place free from serious pollution metal, insulation destroying, explosive, electric conductor dust and frequent violent vibration
Yokogawa mechanical tension meters (yan tension meter) are for accurately measuring the running line tensions on all kinds of wires (cooper, metal, aluminum, plastic and etc). Yarns and fibers. With precise jeweled movement, Precision ball bearing mounted rollers and built-in damper, T1 tension meter completely eliminate the vibration and resistance caused by instrument itself, to provide reliable, accurate and steady tension reading as tension fluctuate. 1. Easy to read: 128*64 LCD display panel, clear display with high bright backlight. 2. Easy to operate: Simple and user friendly fuctional buttons. 3. Easy to hand: Clean Streamlined handle design. 4: Direct display of real time measurement. 5. Powered by replaceable lithium battery. 6. High precision, long service life 7. With memory back up function. Product specification of the tension meter Model Test range Minimum degree T-101 -02 0-20g 0.5g -05 0 -50g 1.0g -10 0 -100g 2.0g -20 0 -200g 5.0g -30 0 -300g 10.0g -50 0 -500g 10.0g T-102 -01 0 -1000g 20.0g -02 0 -2000g 50.0g Advantage of our coil winding wire tension meter 1. Precise tension scale 2. Competitive price 3. Excellent quality of tension meter 4. Various kinds of tension meter for choosen 5. Fast response speed 6. Professional tensioner engineering team 7. Good after-sales service
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