Quantcast Section V- Live Line Tools

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TM 5-684/NAVFAC MO-200/AFJMAN 32-1082
splits. Ladders should be kept clean, for the same
a. Inspection and repair. Ladders should be
reason.
inspected at frequent intervals to ensure that
b. Storage. Ladders should be stored indoors,
all rungs, braces, and side rails are secure and
when not in use, so harmful weathering cannot af-
free of defects. If defects are noted that cannot
fect them. The storage area should have adequate
be readily repaired, the ladder should be replaced.
ventilation and not be subject to excessive heat or
Ladders should not be painted, since paint
dampness which might cause warping.
will mask defects in the wood such as cracks and
Section V-LIVE-LINE TOOLS
15-17. Certification of live-line tools.
nicks, gouges, dents, or delamination in the stick
surface; or a tool with a deterioration of its glossy
Tools should be manufactured to meet ASTM F18
surface.
series specifications, as appropriate to the device
(3) An electrically overstressed tool showing
and material. The insulating portion of a tool is
evidence of electrical tracking, burn marks, or blis-
made of fiberglass or wood. Facility workers should
ters caused from heat.
use fiberglass tools since it is stronger and does not
absorb moisture; is impervious to oil-borne materi-
(4) Failure to pass an electronic test using por-
als and solvents; and is a better insulator than
table electronic live-line tool testers; or failure to
wood. Like any insulator, fiberglass must be kept
pass a moisture test using portable moisture meters
clean and dry to maintain its insulating ability.
developed to test live-line tools.
Only use live-line tools that have a manufacturer's
c. Tool cleaning. Clean live-line tools before each
test certification to meet the following minimum
use with a clean absorbent paper towel or cloth and
requirements.
then wipe with a silicone-treated cloth. Waxing is
a. Fiberglass. A fiberglass tool must have with-
not necessary after every use, but only as needed.
stood 100,000 volts ac per foot (300 millimeters) of
Use cleaning and waxing kits manufactured for
length for 5 minutes.
live-line tools and follow directions for their use.
b. Wood. Wood tools should be phased out as soon
Never use cloths that have been washed in harsh
as possible. If still in use, a wood tool must have
solvents, soap, or detergents. Residues left on the
tools will be conductive. Abrasives can destroy the
withstood 75,000 volts ac per foot (300 millimeters)
of length for 3 minutes.
surface gloss of the tool and cause water or moisture
beads to form on the surface of the tool.
15-18. Care of live-line tools.
(1) Fiberglass tools. Clean, wax, and refinish in
Tools are only as safe as their continued care and
accordance with the manufacturer's directions.
inspection make them. ANSI/IEEE 516 and IEEE
(2) Wood tools. R e p 1 ace with fiberglass tools as
978 provide additional information on maintenance
soon as possible. Wood tools with an excessive mois-
and testing.
ture meter reading should be treated with a
a. Records. Records will be maintained for all
moisture-resistant insulating wood preservative in
live-line tools and will indicate their shop or labora-
the following manner:
tory inspection and testing dates. Electrical shop
(a) Preparation. Tools should be cleaned,
and laboratory testing will be provided at intervals
dried, and smoothed with sandpaper. Emery cloth
of not more than 6 months for tools in frequent use,
or other materials that might leave metallic par-
and at intervals of not more than one year for tools
ticles must not be used for sanding.
stored for long periods of time. Arrange for tests
(b) Drying. Use a drying cabinet, which per-
with the manufacturer, serving utility, or local test-
mits tools to be suspended vertically and has small
ing laboratory.
openings in the bottom and top for air circulation.
b. Tool inspection. OSHA requires that live-line
Incandescent lamps may be used in the bottom to
tools be visually inspected daily before use. Tools to
provide heat. Drying is recommended at 90 degrees
be used will be wiped clean. If any hazardous de-
F (32 degrees C) for approximately 48 hours at 31 to
fects are indicated, tools will be removed from ser-
38 percent relative' humidity. After drying, subject
vice. The following field observations warrant their
tools to a high-potential dielectric leakage or ac di-
removal from service.
electric loss test.
(1) A tingling or fuzzy sensation when the tool
(c) Prompt touch up. After drying, if the fin-
is in contact with energized conductor or hardware.
ish is worn or damaged, promptly apply two or three
coats of clear preservative finish as recommended
(2) A mechanically overstressed tool showing
by the tool manufacturer. Tools should then be dried
such evidence a s damaged, bent, worn, or cracked
again in a drying cabinet for an additional 12 hours.
components; or a tool with deep cuts, scratches,
15-6





 


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