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Ties - Manufactured of aluminum covered steel.
Pads - A specially formulated elastomer pad is supplied with each Spool Tie used for bare conductor, identified by catalog number suffix P. To specify the Spool Tie without the pad use the suffix T (for use on jacketed conductor).
Identification tag - Identifies catalog number, neck size, nominal conductor size, and conductor size.
To ensure proper fit and service life, it is recommended that only spool insulators of 1-3/4" neck diameter be used of ANSI class 53-1, 53-2 and 53-3. Spool Ties not only replace hand ties over armor rods, but Spool Ties with pads provide superior protection against abrasion and all types of conductor motion from high frequency aeolian vibration to low frequency galloping. The pad, which surrounds the conductor is a resilient cushion where the conductor is in contact with the insulator. Spool Ties without pads are used for jacketed conductor.
Spool Ties are available for conductor sizes up to 0.968".
Under unbalanced load conditions, the Spool Tie has the resiliency to permit some longitudinal displacement of the conductor over the insulator without loosening the tie or damaging the conductor.
The RIV characteristics of Spool Ties are superior to those of a well made hand tie when originally installed. During service-life, the pre-contoured helix assures consistent fit which has better RIV characteristics than loosened tie-wire.
Tapping over applied legs of the Spool Tie is not recommended. Taps should be located at least 6 inches from the end of the legs.