Les entretoises haute température sont nécessaires pour la construction de faisceaux horizontaux afin d'éviter les dommages causés par les oscillations induites par le sillage, le déchargement de la glace et le claquement des courts-circuits. L'entretoise HiTemp® Speed-Grip® d'AFL utilise des pinces à douille en élastomère pour serrer fermement le conducteur tout en éliminant les éventuelles ruptures par fatigue du brin d'aluminium entièrement recuit. Il est spécialement conçu pour permettre une installation rapide sans outils spéciaux.
www.AFLglobal.com or 800-866-7385 Motion Control © 2003, AFL, all rights reserved. PP-3-00754, Revision 12, 11.19.19 Specifications are subject to change without notice. 383 DAMPERS SPACERS Spacers are necessary on horizontal bundle construction to prevent damage from wake-induced oscillation, ice unloading and short circuit clashing. AFL’s Speed-Grip Spacer employs elastomer bushed clamps to firmly grip the conductor. It is specially designed to allow rapid installation without special tools. What is wake-induced oscillation? Wake-induced oscillation is a motion particular to bundled conductors experiencing moderate to high crosswinds. It takes various forms based on the bundle configuration and winds that occur. Damage can result due to conductor clashing or wear of attachment hardware, and thus it is important to protect against it. AFL has been researching oscillation to understand it and has developed improved accessories to control it. Features Fully Assembled The Speed-Grip Spacer is ready for immediate installation. The bushings are seated, frames interlocked and the wedge-lock bolt in place. Quick Installation With no loose parts, whether from a helicopter, spacer cart or bucket, the Speed-Grip spacer takes seconds to install. No Special Tools With the wedge-lock breakaway bolt, no special tool or torque wrench is needed. Simply tighten the bolt until the head shears off, indicating proper torque has been achieved. Customized Design The Speed-Grip Spacer is designed with a standard 18 inch spacing. For applications requiring other spacing dimensions, contact the AFL Technical Support Team. Spacers for T2 Conductors AFL has developed a special clamp insert that allows the speed grip spacer to be firmly secured to a T2 conductor. See page 394 for an illustration of the spacer and the attachment. Please contact our engineering department for applications involving T2 Conductor. High Temperature Applications The Standard Bushings have a maximum temperature of 125°C. AFL has designed a special clamp insert to withstand the elevated temperatures of high temperature conductors. Two units are currently available for 200°C and 250°C. The 200°C unit is designated by adding the suffix “MT” to the part number. (i.e. 3326MT). The 250°C unit is designated by adding “HT” to the part number. (i.e. 3326HT). See page 337 for information on the HiTemp ® Speed-Grip Spacers—3300HT Series. Please contact our engineering department for performance data on these two units. Vibrec ® Damper Recommendation Program The Vibrec damper recommendation program assists in Speed-Grip Spacer requirements for transmission lines. For more information visit www.Vibrec.com or contact the AFL Technical Support Team at 1.800.866.7385. Vibration Recommendation Form can be found on page 404. Speed-Grip ® Spacers for Two Bundle Conductors—3300 Series
www.AFLglobal.com or 800-866-7385 Motion Control © 2003, AFL, all rights reserved. PP-3-00754, Revision 12, 11.19.19 Specifications are subject to change without notice. 384 DAMPERS SPACERS Speed-Grip ® Spacers for Two Bundle Conductors—3300 Series (cont.) AFL NO. CONDUCTOR DIAMETER RANGE DIMENSIONS BOLT DIAMETER IN WEIGHT MAXIMUM VOLTAGE A B ALUMINUM TOTAL IN MM IN MM IN MM LBS KG LBS KG KV 3300 0.776 - 0.808 19.7 - 20.4 18.0 457 2.0 51 5/8 3.1 1.41 3.5 1.56 345 3301 0.809 - 0.842 20.5 - 21.3 18.0 457 2.0 51 5/8 3.1 1.41 3.5 1.56 345 3302 0.843 - 0.875 21.4 - 22.1 18.0 457 2.0 51 5/8 3.1 1.41 3.5 1.56 345 3303 0.876 - 0.908 22.2 - 23.0 18.0 457 2.0 51 5/8 3.1 1.41 3.5 1.56 345 3304 0.909 - 0.942 23.1 - 23.8 18.0 457 2.0 51 5/8 3.1 1.41 3.5 1.56 345 3305 0.943 - 0.975 23.9 - 24.7 18.0 457 2.0 51 5/8 3.1 1.41 3.5 1.56 345 3306 0.976 - 1.000 24.8 - 25.4 18.0 457 2.0 51 5/8 3.1 1.41 3.5 1.59 345 3307 1.001 - 1.030 25.5 - 26.1 18.0 457 2.0 51 5/8 3.1 1.41 3.5 1.59 345 3308 1.031 - 1.051 26.2 - 26.6 18.0 457 2.0 51 5/8 3.1 1.41 3.5 1.59 345 3309 1.052 - 1.079 26.7 - 27.4 18.0 457 2.0 51 5/8 3.1 1.41 3.5 1.59 345 3310 1.080 - 1.110 27.5 - 28.1 18.0 457 2.0 51 5/8 3.1 1.41 3.5 1.59 345 3311 1.111 - 1.131 28.2 - 28.7 18.0 457 2.0 51 5/8 3.1 1.41 3.5 1.59 345 3312 1.140 - 1.170 29.0 - 29.7 18.0 457 2.0 51 5/8 3.1 1.41 3.5 1.59 345 3313 1.171 - 1.200 29.8 - 30.4 18.0 457 2.0 51 5/8 3.1 1.41 3.5 1.59 345 3314 1.201 - 1.220 30.5 - 30.9 18.0 457 2.0 51 5/8 3.1 1.41 3.5 1.59 345 3315 1.221 - 1.240 31.0 - 31.5 18.0 457 2.0 51 5/8 3.1 1.41 3.5 1.59 345 3316 1.241 - 1.257 31.6 - 31.9 18.0 457 2.0 51 5/8 3.1 1.41 3.5 1.59 345 3317 1.258 - 1.289 32.0 - 32.7 18.0 457 2.0 51 5/8 3.7 1.68 3.5 1.86 345 3318 1.290 - 1.320 32.8 - 33.5 18.0 457 2.0 51 5/8 3.7 1.68 3.5 1.86 345 3319 1.321 - 1.345 33.6 - 34.1 18.0 457 2.0 51 5/8 3.7 1.68 3.5 1.86 345 3321 1.380 - 1.405 35.1 - 35.6 18.0 457 2.0 51 3/4 3.7 1.68 4.2 1.91 345 3322 1.406 - 1.431 35.7 - 36.3 18.0 457 2.0 51 3/4 3.7 1.68 4.2 1.91 345 3323 1.432 - 1.460 36.4 - 37.0 18.0 457 2.0 51 3/4 3.7 1.68 4.2 1.91 345 3324 1.461 - 1.490 37.1 - 37.8 18.0 457 2.0 51 3/4 3.7 1.68 4.2 1.91 345 3325 1.491 - 1.520 37.9 - 38.6 18.0 457 2.0 51 3/4 3.7 1.68 4.2 1.91 345 3326 1.521 - 1.550 38.7 - 39.3 18.0 457 2.0 51 3/4 3.7 1.68 4.2 1.91 345 3327 1.551 - 1.580 39.4 - 40.1 18.0 457 2.0 51 3/4 3.7 1.68 4.2 1.91 345 3328 1.581 - 1.611 40.2 - 40.9 18.0 457 2.0 51 3/4 3.7 1.68 4.2 1.91 345 3330 1.612 - 1.640 40.7 - 41.6 18.0 457 2.2 56 3/4 4.2 1.91 5.2 2.36 500 3331 1.641 - 1.680 41.7 - 42.6 18.0 457 2.2 56 3/4 4.2 1.91 5.2 2.36 500 3332 1.681 - 1.720 42.7 - 43.6 18.0 457 2.2 56 3/4 4.2 1.91 5.2 2.36 500 3333 1.721 - 1.750 43.7 - 44.4 18.0 457 2.2 56 3/4 4.2 1.91 5.2 2.36 500 3334 1.751 - 1.790 44.5 - 45.4 18.0 457 2.2 56 3/4 4.2 1.91 5.2 2.36 500 3335 1.791 - 1.830 45.5 - 46.4 18.0 457 2.2 56 3/4 4.2 1.91 5.2 2.36 500 3336 1.831 - 1.860 46.5 - 47.2 18.0 457 2.2 56 3/4 4.2 1.91 5.2 2.36 500 3337 1.861 - 1.890 47.3 - 48.0 18.0 457 2.2 56 3/4 4.2 1.91 5.2 2.36 500 3338 1.891 - 1.920 48.1 - 48.7 18.0 457 2.2 56 3/4 4.2 1.91 5.2 2.36 500 Ordering Information Speed-Grip Spacers are ordered by catalog number corresponding to the conductor diameter. Example: For 795 Drake ACSS Conductor (1.108" diameter) operating at 250°C, the Speed-Grip Spacer catalog number would be: 3310 HT Note: Installation instructions for Speed-Grip Spacers are on page 402. The Speed-Grip Spacer comes fully assembled with no loose parts. The wedge lock break-away bolt requires no special tools to tighten. Unless otherwise requested, standard spacing is 18 inches. Range Code BLANK = Standard (125°C max.) MT = Medium Temperature (200°C max.) HT = High Temperature (250°C max.)
Caractéristiques :
- Application à haute température
- Installation rapide sans pièces détachées, que ce soit à partir d'un hélicoptère, d'un chariot d'écartement ou d'une benne.
- Entièrement assemblé, prêt pour une installation immédiate
- Bagues assises, cadres emboîtés et verrouillés par des boulons.
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