STRINGING ADJACENT TO ENERGIZED LINES Employees
stringing adjacent to energized lines should follow certain safe work
practices. (See 29 CFR 1910.269(q), 1926.955(d), and IEEE 516-1987, "IEEE Guide
for Maintenance Methods on Energized Powerlines.") Consideration should be
given to the following:
1. When performing work from structures,
clipping crews and all others working on conductors, subconductors, or overhead
grounding conductors should be protected by individual grounds installed at
every work location.
2. When workers are stringing adjacent to
energized lines, the tension-stringing method or other methods that prevent
unintentional contact between the lines being pulled and any worker should be
used.
3. All pulling and tensioning equipment
should be effectively grounded.
4. Aground should be installed between the
tensioning reel setup and the first structure to ground each bare conductor,
subconductor, and overhead grounding conductor during stringing across or
adjacent to energized lines.
5. During stringing operations, each bare
conductor, subconductor, and overhead grounding conductor should be grounded at
the first tower adjacent to both the tensioning and pulling setup and at
appropriate intervals. The grounds should be left in place until conductor
installation is completed. Except for moving-type grounds, the grounds should
be placed and removed with a hot stick.
6. Conductors, subconductors, and overhead
grounding conductors should be grounded at all dead-end or catch-off points.
7. A ground should be located at each side
and within 10 ft. of working areas where conductors, subconductors, or overhead
grounding conductors are being spliced at ground level. The two ends to be
spliced should be bonded to each other. It is recommended that splicing be
carried out on either an insulated platform or on a conductive metallic
grounding mat bonded to both grounds. When a grounding mat is used, it should
be roped off and an insulated walkway provided for access to the mat.
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