1、,INCH-POUND1MI L-DTL-15562G tU!VY)Iev 1996SUPERSEDINGMIL-M-15562F(NAVY)7 December 1977(See 6.6)DETAIL SPECIFICATIONKATTING OR SHEET, FLooR COVERINGINSULATING FOR HIGH VOLTAGE APPLICATIONThis specification is approved for use by the Department of the Navy andis available for use by all Departments an
2、d Agencies of the Departmentof Defense.1. SCOPE1.1 m. This specification covers rubber or plastic matting and sheetfOOr coverings for use around electrical appaxatus or circuits, as a safetymeasure to protect personnel from accidental exposure to electrical potentials notexceeding 3000 volts. Equipm
3、ent operating at higher voltages utilize other built-in safety measures to provide personnel protection.1.2 lass. Material is of the following types, as specified(see 6.2) .Type I -Type 11 -Type III -rSheet, smooth surface.Mat, runner type, smooth surface.Mat, runner type, raised diamond pattern sur
4、face.Beneficial comments (reconunendations, additions, deletions) and any pertinentdata which may be of use in improving this document should be addressed to:Commander, SSA 03R42, Naval Sea Systems Command, 2531 Jefferson Davis HwytArlington, VA 22242 -S160 by using Che self-addressed Standardizatio
5、n DocumentImprovement Proposal (DD Form 1426) appearing at the end of this document orby letter.AMSC N/ABUfIFSC 7220ON s. Approved for publiC release; disczibution is unlimited.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-15562G( NAVY)2. A
6、PPLICABLE DOCUr.fENTS2.1 General. The documents listed in this section are specified in sections3 and 4 ofpecificstion. This section does not include documents cited inother sections of this specification or recommended for additional information oras examples. While every effort has been made to en
7、sure the completeness of thislist, document users are cautioned that they must meet all specified requirementsdocuments cited in sections 3 and 4 of this specification, whether or not they arelisted.2.2 Government documents.2.2.1 specifications, standards, and handbooks The following specifica-tions
8、, standards, and handbooks form a part of this document to the extentSpecified herein. Unless otherwise specified, the issues of these documents arethose listed in the issue of the Department of Defense Index of Specifications andStandards (DoDISS) and supplement thereto, cited in the solicitatiofi
9、(see 6.2)STANDARDSFEDERALFED-STD-501 -FED-STD-595 -FED-STD-601 -MILITARYMIL-STD-407 -MIL-STD-1623 -Floor Coverings, Resilient, Nontextile: Samplingand Testing,Colors Used in Government Procurement.Rubber: Sampling and Testing.Visual Inspection Guide for Rubber Molded Items.Fire Performance Requireme
10、nts and ApprovedSpecifications for Interior Finish Materials andF2After immersion, 70 percent 70 percent 70 percent 3.7.2 4.6.2sulfuric acid of initial of initial of initialAfter oxygen bomb 80 percent 80 percent 80 percenta in3.7.3 4.6.3g of initialg of initial of initialAfter light aging 65 percen
11、t 65 percent 65 percent 3.7.4 4.6.4of initial of initial of initialUltimate elongation, 75 100 100 3.8 4.6.5percent min.Permanent set, 25 25 25 3.9 4.6.6percent max.Hardness 95*5 75 min. 65 min. 3.10 4.6.7Abrasion resistance, 10 20 - 3.11 4.6.8roils 10ss, max.Flexibility shall pass shall pass shall
12、pass 3.12 4.6.9Voltage shall pass shall pass shall pass 3.13 4.6.10Dielectric strength, 30,.000 30,000 30, 000 3.14 4.6.11volts, min.Fire resistance shall pass shall pass shall pass 3.15 4.6.12Dimensional * 0.020 i 0.250 * 0.250 3.16 4.6.13stability,inchjfoot.Identi fic,ation - - - 3.17 4.3.5marking
13、G1OSS 50 - - I 3.18 4.6.14Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-M1L-DTL-15562G (wAvY)4.3 conformance inspection. Conformance inspection shall be as specified intable I and 4.3.1 through 4.3.3.4.3.1 Lot. For the purpose of conformance inspec
14、- tion and test sampling, alot is defin=as all the deck covering of the same type, from a single, uniformbatch, produced and offered for delivery at one time. The addition or removal ofany substance to a batch shall constitute a new lot.4.3.2 Sampling for conformance inspection. .%s a minimum, the c
15、ontractorshall select a sample from each lot of completed deck coverina as snecified in4.3.2.1, and examine them as specified in able I (see 6,4.1) 4.3.2.1 Samplinq for matting or sheeting examinations. A random sample ofrolls of material shall be selected as specified in table II. Sampling plan ,A,
16、shall be used for all tests except for the voltage test, which shall haveselected in accordance with sampling plan “B, For sampling plan “A”, ifsize is less than five 1011.s, the sample shall include the enti Ie lot.TABLE II. Sampling plan.Sampling plan A Sampling plan BLot or batch size Sample size
17、 Sample sizeI , 1lto8 5 All9 to 50 5 13 I51 to 90 7 i391 to 150 11 13151 to 280 13 20281 to 500 16 29501 to 1200 19 341201 to 3200 23 423201 to 10,000 29 504.3.3 Samplinq for conformance tests. For the tests specified in4.5, except for voltage, four rolls shall be selected from the sample selected a
18、sspecified in 4.3.2.1, and a piece of sufficient size for testing shall be takenfrom each of these four rolls. If the lot contains less than four rolls, each rollshall be sampled. For the voltage test, the entire area of each sample rollselected in 4.3.2.1 shall be tested as described see 4.6. 10)sa
19、mplesthe lot4.4 and4.3.4 samp linq for production check tests. With the first lot of materialoffered for delivery under a contract and, normally, once thereafter for every 10lots which have passed conformance inspection, sufficient material shall be takenfram each of the sample rolls selected as spe
20、cified (see 4.3. 3) for the productioncheck tests specified (see 4.5) .4.3.5 Visual and dimensional examination.4.3.5.1 Flooring material. Each of the sample rolls of the sheet or mattingselected as specified in 4.3.2.1 shall be visually and dimensionally examined toverify compliance with 3.4, 3.5,
21、3.6, 3.17, and 3.18. The surfaces shall beexamined for the visual defects described in MIL-STD-407 to determine conformanceto 3.17 (see 6.4.2.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-15562G (NAvY )IIIII-.4.4 Conformance tests. Each of
22、the samples selected as specified in 4.3.3shall be subjected to the following tests: a71TestTensile strength (initial only)Ultimate elongationHardnessFlexibilityVoltageDielectric strengthFire resistanceDimensional stabilityGlossParagraph4.6.14.6.54.6.74.6.94.6.104.6.114.6.124.6.134.6.144.5 Productio
23、n check tests. Each of the samples selected as specified in4.3.4 shall be subjected to the following tests (see 6.4. 1):TestTensile strengthAfter inunersionAfter oxygen bombAfter light agingPermanent setParagraph4.6.2aging 4.6.34.6.44.6.6Abrasion resistance 4.6.84.6 Test methods. Unless otherwise sp
24、ecified (see 6.2) , all specimens shallbe conditioned for at least 16 hours at 27 f 4 degrees Celsius (C) before beingtested and the tests shall be performed within this temperature range.4.6.1 Tensile strength. Tensile strength shall be determined in accordancewith ASTM D 412 using die c for prepar
25、ing dumbbell specimens.4.6.2 Immersion test. Three dumbbell rubber specimens of the size specified(See 4.6.1) shall be used. Both sides of the specimen shall be buffed. Thespecimens shall be immersed and tested for tensile strength in accordance withmethod 6121 of FED-sTD-601. The immersion medium s
26、hall be a 20 percent by weightsulfuric acid solution and the immersion temperature shall be 70 t 14C. Afterinunersion, the specimens shall be removed, rinsed lightly with. water at roomtemperature, and blotted lightly with filter paper. The specimens shall then besuspended or placed on a screen a“nd
27、 allowed to dry at room temperature in aizprotected from drafts for 2 hours,determined.after which the tensile strength shall beIn calculations of the tensile strength, measurements for cross-sectional area shall be taken after inunersi.a” and drying of the specimens.4.6.3 Oxygen bomb aging test. Th
28、ree dumbbell rubber test specimens of sizespecified (see 4.6.1) shall be subjected to the oxygen bomb aging test inaccordance with method 7111 of FED-sTD-601 and then tested for tensile strength.The aging period shall be for 46 t 1/4 hours.4.6.4 Liqht aging. Three dumbbell rubber test specimens of t
29、he size speci-fied (see 4.6. 1) shall be subjected to light aging in accordance with method 7311of FED-sTD-601 and then tested for tensile strength. The aging method, however,should be modified as follows:Exposure for 25 hours shall be made at 10 percent elongation, using!Ever-Ready Sunshine,S carbo
30、ns or equal or other method satisfactory to thecontracting activity. Total dosage in decomposition of oxalic acid by uranyloxylate actinometer shall be a minimum of 0.5 by 10” milligrams (mg) persquare decimeter.a718 IProvided by IHSNot for ResaleNo reproduction or networking permitted without licen
31、se from IHS-,-,-a71MIL-DTL-15562G(NAVYI4.6.5 Ultimate elongation. Ultimate elongationaccordance with ASTM D 412, using die C for preparingthickness shall be as specified (see 3.4)shall be determined indumbbell specimens. Specisnen4.6.6 Permanent set. Permanent set shall be determined in accordancewi
32、th ASTM D 412. The specimens shall be elongated 75 percent for type 1, and100 Percent for tvues II and III in the test. specimen thickness shall be asspecified (see 3.2_l.4.6.7 Hardness. Hardness shallShore A durometer.4.6.8 Abrasion resistance. Theaccordance with ASTN D 1242, method Abe determined
33、in accordance with ASTM Dabrasion resistance shall be determined(loose abrasive) , except that thicknessin rnils will be reported in lieu of volume loss.4.6.9 Flexibility. The material shall be tested as described in methodof FED-STD 501. The mandrel diameter shall be O.75-inch normal.2440,in10ss311
34、14.6.10 Voltaqe. The voltage test shall be made on the entire area of everyroll of material offered for test except for the peripheral area within 2 inches ofthe edge. The material shall be tested between electrodes consisting ofrectangular metal sheets, having smoothly rounded edges and corners and
35、 of anyconvenient length. The width shall be such that arcing around the edges of thematerial will not occur. The tests shall be made progressively until the entiretest area of the material (the entire roll) has been covered, 15,000 voltsalternating current (at) being applied for 1 minute at each po
36、sition of theelectrodes. The contact pressure of the electrodes shall be adequate to obtaingood electsode contact with the test specimen.4.6.11 Dielectric strength. Specimens shall be tested to failure in airbetween 2-inch disk electrodes with edges rounded to a radius of 1/4 inch. Thevoltage shall
37、be applied at the rate specified (see 4.6.11.1.4) . The test specimenshall be a tinimum of 1 square foot in area and there shall be a minimum of fivemeasurements made with no two measurements being less than 4 inches apart.4.6.11.1 Test voltage.4.6.11.1.1 Source. The test voltage shall be obtained f
38、rom test equipment,all parts having a capacity of not less than 1/2 kilovoltampere (kVA) per squarefoot of electrode surface. In no case shall the rating of any part of the testapparatus be less than 5 kvA. The frequency of the test voltage shall not exceed65 hertz (Hz) .4.6.11.1.2 Regulation. The m
39、ethod of regulating the test voltage shall beone which does not distort the wavefona of the test voltage from a sine wave.Acceptable methods include:(a) Field regulation of the alternator supplying the tranSfoer.b) Induction type regulator.c) Variable-ratio-transformer type of regulator.(d) Potentio
40、meter type of rheostatic control where the current in theportion of the potentiometer resistance in parallel witn theprimary transformer is at least five times the exciting current ofthe transformer.4.6.11.1.3 Measurement. The test voltage shall be measured by one of thefollowing methods:Provided by
41、 IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-15562G (NAVT)(a) A properly calibrated, electrostaticacross the specimen under test.voltmeter connected directly(b) Any properly calibrated, commercial type of alternating current evoltmeter connected to t
42、he low-tension side of the transformer inconjunction with the ratio of transformation of the transformer,provided that the ratio is definitely known for all testconditions.4.6.11.1.4 plication. The potential shall he applied at a low value andgradually and steadily raised at the rate of 800 to 1,000
43、 volts per second untilthe prescribed testing voltage is reached.4.6.12 Fire resistance. The material shall be tested in accordance withMIL-STD-1623 .4.6.13 Dimensional stability. Stability shall be determined in accordancewith ASTM D 1204. Samples shall be heated to a test temperature of 70 + O.50C
44、 foz2 t 1/4 hours.4.6.14 G1OSS The top surface gloss for type I flooring shall be determinedin accordance= A.5T?4D 2457. The measurements shall be taken utilizingdegree gloss angle.5. PACKAGING5.1 Packaging. For acquisition purposes, the packaging requirementsas specified in the contract or order (s
45、ee 6.2) When actual packaging ofiS to be performed by DoD personnel, these personnel need to contact theresponsible packaging activity to ascertain requisite packaging requirements.Packaging requirements are maintained by the Inventory Control Points packagingactivity within the Military Department
46、or Defense Agency, or within. the MilitaryDepartments System Connnand. Packaging data retrieval is available from themanaging Military Department 1s or Defense Agency”s automated packaging files,CD-ROM products, or by contacting th responsible packaging activity.6. NOTES(This sectionbe helpful, but
47、isthat maycontains information of a general or explanatory naturenot mandatory. )use. The mat and sheet flooring is intended to protecta 60shall bemateriel6.1 Intendedpersonnel against accidental exposure to electrical potentials not exceeding 3000volts . The sheet material, type I, is intended for
48、use as a permanent installa-tion, that is, cemented over the entire exposed floor. The runner matting, typesII and III, is designed for use as a portable mat and nomnally used in singlestrips in frent of electrical work benches, switchboards, or panels.6.2 Acquisition requirements. Acquisition docum
49、ents must specify thefollowing:(a)(b)(c)(d)e)(f)9)(h)(i)Title, number, and date of this specification.Type required (see 1.2) .Issue of DoDISS to be cited in the solicitation, and if required,the suecific issue of individual documents referenced (see 2.2.1and 2“.3)When a first article is required (see 3.1).When length and width is other than as specified (see 3.5) .Color required (see 3.6.2) .Conditioning of specimens if other than as speci
