ANSI C135-63-1998 pdf download IEEE Standard for Shoulder Live Line Extension Links for Overhead Line Construction
1. Overview
1.1 Scope
This standard covers the dimensions and strength requirements for shoulder live line extension links used in overhead transmission and distribution hardware. 1.2 Application Shoulder live line extension links conforming to the requirements of this standard shall in all respects meet the basic dimensional and performance requirements herein stated. Shoulder live line extension links are normally used at an attachment location for tools when changing out a string of suspension insulators. This work may be performed while the line is energized or de-energized.
2. Material
The shoulder live line extension links may be made of any material acceptable to the purchaser, subject only to the limitations imposed by specied dimensions and minimum strength requirements.
3. Dimensions
The dimensions in Figure 1 apply to the insulator end of the shoulder live line extension link. This end may be in the shape of a standard ball, socket, eye, clevis, or oval eye tting, depending upon application. The dimensional requirements of Figure 1 shall be maintained.
4. Test procedure and test reports The following design tests are meant to verify the adequacy of the design of the shoulder live line extension link when incorporated with any standard ball, socket, eye, clevis, or oval eye type tting. These tests are not meant to be routine tests or to replace routine tests.
4.1 Test procedure Five product samples of any one combination of shoulder and insulator end ttings that conform to this stan- dard shall be subjected to the following test. Each test sample shall be held by the appropriate type of test xture shown in Figure 2 and tested in the manner shown in Figure 3. The load shall be started at zero and smoothly brought up in a practically stepless variation to 75% of the full rated strength of the shoulder live line extension link [i.e., 101 kN (22 500 lbf) for a 135 kN (30 000 lbf) extension link]. Alternately, the load may be increased rapidly to approximately 50% of rated strength. The load from 50% to 75% of rated strength shall be applied at a rate of 25% of the rated strength per minute.