Quantcast Wood pole spot inspection procedures

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TM 5-684/NAVFAC MO-200/AFJMAN 32-1082
e. Inspection equipment. For convenience, the fol-
Pole B r a n d
lowing list shows the minimum amount of equip-
ment usually needed. It may be added to according
to type of soil, terrain, or extent of work to be un-
Supplier's Brand
Plant Designation
(1) A shovel for digging around the pole and a
Year of treatment
tamper for use when the soil is backfilled.
Species of Timber and
Preservative  Treatment
(2) A flat-bladed spade, a suitable scraper, and
a chipper to remove decayed wood.
(3) A wire brush for removing dirt and decayed
Class and length in feet
(4) A pole prod or a small blunt tool for probing
Figure 4-4. Typical pole brand and key
the pole for decay below ground line, such as a
dulled ice pick or a screwdriver.
4-13. Wood pole maintenance crew instruc-
(5) An increment borer and wood plugs.
(6) A l- to 2- pound (0.5 to l-kilogram) hammer
The crews used for pole inspections should be pro-
for sounding poles and for driving wood plugs.
vided with instructions as to inspection precautions,
(7) A tape for measuring the groundline cir-
duties, safety requirements, and use of equipment.
cumference of the pole and a 6-inch (150-millimeter)
Crews should always review any pole history avail-
(8) A flashlight and a binocular (6 x 30) for
a. Spot examination crews. Crews of two or three
observing the upper portion of the pole above the
people should be provided with an experienced crew
inspector's groundline vision.
(9) Previous records and blank forms for re-
b. Pole-by-pole crews. Crews of three to five
cording all details of work.
(10) Dating nails to indicate year of inspection
people may be provided by the facility or work may
or groundline treatment and tags to indicate re-
be done by contract personnel. In either case, an
jected poles and dangerous poles.
experienced person employed by the facility should
(11) Preservative and application equipment
closely supervise the work.
for groundline treatment.
c. Crew duties. The duties of the crew consist of
(12) A first-aid kit to handle minor injuries.
observing the pole tops, crossarms, and attach-
f. Recommended time of year: If possible, inspect
ments; inspecting the pole to a height that can be
conveniently reached from the ground; excavating
during the summer months when preservatives
need not be heated, digging is easier, and the pole is
and inspecting the pole below the ground line; ap-
drier. A dry pole makes examination for decay more
plying groundline treatment; keeping accurate
positive, and ensures better penetration of preser-
records; and any other work, as appropriate.
d. Safety precautions. Follow all safety regula-
tions described in TM 5-682, NAVFAC P-1060, or
4-14. Wood pole spot inspection procedures.
AFM 32-1078. Safety requires that any pole that
has lost strength from decay or other cause to the
The spot inspection should not be confined to poles
most convenient to reach, as this could give an ab-
point of being hazardous should be replaced or rein-
surd indication. A sufficient number of poles in a
forced. Simple economy, however, requires that such
line should be sampled in arithmetical progression,
condemnation be arrived at only after careful in-
checking every alternate pole or every third or fifth
spection, including measurement of groundline cir-
pole, depending upon the uniformity of conditions.
cumference when only groundline decay is involved.
a. Visual. Make visual inspections from the
This means that lines may contain many poles that
ground using binoculars and flashlights to check for
have lost a certain amount of their original strength
cracks, shell rot, knots, hollow spots, woodpecker
and thus should be climbed only after taking proper
holes, and burned spots.
precautions, such as guying. Pikes poles (a tool used
b. Probing. A long probe or prod in the form of a
in raising poles) are not permitted for support while
l-foot (0.3-meter) steel bar with a blunt point has
personnel are working on poles. Before climbing a
been found useful in spot inspecting poles when a
pole, the lineman should use spot examination
pattern of external decay is established. Such prod-
methods to check a pole for which there is no recent
inspection record. No inspection member who is not
ding should be done with care so as not to jab holes
into the wood. As an improvement on this method, a
a lineman should be instructed to provide mainte-
nance requiring a lineman's qualification.
special prod or impaction tool is now on the market.


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