FED-STD-228A
Method 8311.1
18 APRIL 2014
WEIGHT, WIRE OR CABLE, CONDUCTOR AND COVERING MATERIAL
1. SCOPE
1.1 This method is intended for use in determining the weight of the finished wire or cable, conductor and
covering materials of insulated wire and cable. It is particularly applicable to type URC weather-resistant
wire or any other insulated wire or cable purchased on a weight basis.
2. SPECIMEN
2.1 The specimen should be a piece of the inspection unit at least 2 feet in length.
3. APPARATUS AND REAGENTS
3.1 The apparatus and reagents shall be as follows:
3.1.1 Steel scale graduated to 1/64 inch or finer, or its decimal equivalent.
3.1.2 Balance accurate to 0.20 gram and weights.
3.1.3 Wiping cloth.
3.1.4 Alcohol, or other suitable solvent.
4. PROCEDURE
4.1 The specimen, with ends cut squarely and smooth, shall be laid out on a smooth horizontal surface,
the length of the specimen measured to the nearest 1/64 inch with steel scale, and the value recorded as
L.
4.2 The specimen shall be weighed to within 0.20 gram and the weight recorded as W.
4.3 The covering shall be removed from the conductor and the conductor freed of any adhering material
with the solvent and wiping cloth, weighed to within 0.20 gram, and the weight recorded as W1.
5. RESULTS
5.1 Calculation.
5.1.1 The weight of 1,000 feet of the covering material shall be calculated as follows:
Weight of covering material, pounds per 1,000 feet = W-W1 x 26,455
L
where:
W=the weight of the specimen in grams
W1=the weight of the conductor in grams
L=the length of the specimen in inches
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