1、INCH-POUND MIL-PRF-15160K 19 January 2013 SUPERSEDING MIL-PRF-15160J 15 May 2006 PERFORMANCE SPECIFICATION FUSES, INSTRUMENT, POWER, AND TELEPHONE GENERAL SPECIFICATION FOR This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This s
2、pecification covers the general requirements and test procedures for nonrenewable instrument, power, and telephone fuses for the protection of electrical and electronic equipment. 1.2 Classification. 1.2.1 Part or Identifying Number (PIN). The PIN designation is in the following form and as specifie
3、d (see 3.1 and 6.2). F02 A 250 V 1 1/2 A S Style Characteristic Voltage Current Silver plated (1.2.1.1) (1.2.1.2) rating rating (1.2.1.5) (1.2.1.3) (1.2.1.4) 1.2.1.1 Style. The style is identified by the letter “F” followed by a two-digit number denoting a fuse of a given interface and physical dime
4、nsion. 1.2.1.2 Characteristics. The characteristics are identified by a one-letter or two-letter symbol which indicates the relative overload interrupt time (see 6.7) and other special features in accordance with table I. 1.2.1.3 Voltage rating. The voltage rating is the maximum direct current (dc)
5、or alternating current (ac) root mean square (rms) voltage for which a fuse is designed. The voltage rating is identified by a numerical value followed by the letter “V”. The voltage rating is as specified (see 3.1 and 6.2). 1.2.1.4 Current rating. The current rating is the amount of current a fuse
6、will carry indefinitely without interruption. The current rating in amperes is identified by a numerical value followed by the letter “A”. The current rating is as specified (see 3.1 and 6.2). 1.2.1.5 Silver plating. The letter “S” identifies fuses which have silver-plated terminals (see 3.5.4 and 6
7、.2). Identification of other platings is not required. Comments, suggestions, or questions on this document should be addressed to: DLA Land and Maritime ATTN: DLA Land and Maritime-VAT, Post Office Box 3990, Columbus, Ohio 43218-3990 or emailed to CircuitProtectdla.mil. Since contact information ca
8、n change, you may want to verify the currency of this address information using the ASSIST Online database at https:/assist.dla.mil. AMSC N/A FSC 5920Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-15160K 2 TABLE I. Relative overload interrup
9、t time. Symbol Relative overload interrupt time A B BR C Normal opening - normal interrupting capacity Time delay - normal interrupting capacity Time delay - very high interrupting capacity, reject feature Normal opening - very high interrupting capacity 2. APPLICABLE DOCUMENTS 2.1 General. The docu
10、ments listed in this section are specified in sections 3 and 4 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this li
11、st, document users are cautioned that they must meet all specified requirements of documents cited in sections 3 and 4 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handboo
12、ks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract (see 6.2). COMMERCIAL ITEM DESCRIPTIONS A-A-59544 - Cable and Wire, Electrical (Power, Fixed Installation). DEPARTMENT OF DEFENSE
13、SPECIFICATIONS MIL-PRF-19207 - Fuseholders, Extractor Post Type, Blown Fuse, Indicating and Nonindicating, General Specification for. (See supplement 1 for list of associated specification sheets.) DEPARTMENT OF DEFENSE STANDARDS MIL-STD-202 - Test Methods for Electronic and Electrical Component Par
14、ts. MIL-STD-1285 - Marking of Electrical and Electronic Parts. (Copies of these documents are available online at https:/assist.dla.mil/quicksearch/ or https:/assist.dla.mil or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094). 2.3 Non-Govern
15、ment publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract (see 6.2). Provided by IHSNot for ResaleNo reproduction or networking permitted without li
16、cense from IHS-,-,-MIL-PRF-15160K 3 INTERNATIONAL ORGANIZATION FOR STANDARDS (ISO) ISO 10012 - Measurement Management Systems - Requirements for Measurement Processes and Measuring Equipment. ISO/IEC 17025 - General Requirements for the Competence of Testing and Calibration Laboratories. (Copies of
17、these documents are available online at http:/www.iso.org/iso/home.html or from the American National Standards Institute (ANSI), 1899 L Street, NW, 11th Floor, Washington, DC 20036-3804). 2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of conflict between the
18、 test of this document and the references cited herein (expect for related specification sheets), the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Specification
19、 sheets. The individual item requirements shall be as specified herein and in accordance with the applicable specification sheet. In the event of any conflict between the requirements of this specification and the specification sheet, the latter shall govern. 3.2 Fuses with ratings not covered by a
20、specification sheet. The requirements of this specification shall apply to fuses with other voltage and current ratings, provided the fuse has the same dimensions and falls within the minimum and maximum current and voltage rating of an existing specification sheet, and conforms to all other require
21、ments of that specification sheet. The Qualified Products List (QPL) shall be applicable to these fuses. 3.3 Qualification. Fuses furnished under this specification shall be products that are authorized by the qualifying activity for listing on the applicable qualified products list before award of
22、contract (see 4.4 and 6.5). 3.4 Material. The material for each part shall be as specified herein. However, when a definite material is not specified, a material shall be used which will enable the fuses to meet the performance requirements of this specification. Acceptance or approval of any consti
23、tuent material shall not be construed as a guaranty of the acceptance of the finished product. 3.4.1 Recovered materials. Unless otherwise specified herein, all equipment, material, and articles incorporated in the products covered by this specification shall be new and may be fabricated using mater
24、ials produced from recovered materials to the maximum extent practicable without jeopardizing the intended use. The term “recovered materials“ means materials which have been collected or recovered from solid waste and reprocessed to become source of raw materials, as opposed to virgin raw materials
25、. None of the above shall be interpreted to mean that the use of used or rebuilt products is allowed under this specification unless otherwise specifically specified. 3.4.2 Restricted material. Flammable or explosive material, or material which can produce toxic or suffocating fumes when the fuses a
26、re in service shall not be used in the construction of fuses. 3.4.3 Case or body. 3.4.3.1 Glass. Glass shall permit the enclosed fuse element to be readily seen. 3.5 Interface and physical dimensions. Fuses shall be of the interface and physical dimensions specified (see 3.1). Provided by IHSNot for
27、 ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-15160K 4 3.5.1 Terminal mounting. Terminals shall be secured to the fuse body so that they will not loosen. The fuse wire shall be attached to the terminals so that there shall be no danger of breaking the fuse wire
28、or connections when installing the fuse. The area of the terminals interface surface that is in direct contact with a fuse carrier or clip shall be free of solder. There are some fuses in use which have solder on the end of the ferrule. This is permissible provided their installation meets the above
29、 criteria. (see 6.3.8 for further guidance). 3.5.2 Ferrule alignment. Fuses with ferrule terminals shall pass through a tubular gauge having a length equal to the fuse. The tubular gauge shall have an internal diameter of .010 inch (0.254 mm) greater than the maximum ferrule diameter for fuse length
30、s up to and including 1.75 inches (44.45 mm). For fuse lengths greater than 1.75 inches (44.45 mm), the tubular gauge shall have an internal diameter of .015 inch (0.381 mm) greater than the maximum ferrule diameter. 3.5.3 Terminal alignment. Fuses with knife blade and lug type terminals shall be al
31、igned or shall be capable of self-aligning so that their planes are within 4 degrees of each other. 3.5.4 Terminal finish or plating. Ferrules or other terminals shall be finished (plated, dipped, coated) or shall be natural (no finishing process), as specified (see 3.1). When silver plating is spec
32、ified (see 1.2.1.5), the letter “S“ shall be added as a suffix to the type designation. Additionally, the use of pure tin, as an underplate or final finish, is prohibited externally. Tin content of fuses and solder shall not exceed 97 percent, by mass. Tin shall be alloyed with a minimum of 3 percen
33、t lead, by mass. Finish shall be optional when not specifically designated. Finishes shall be used which enable the fuses to meet the performance requirements of this specification. For guidance on finishes, see 6.3. 3.6 Continuity. Fuses shall have electrical continuity (see 4.7.1). 3.7 Current-car
34、rying capacity. There shall be no evidence of mechanical damage or failure when fuses are tested as specified (see 4.7.2). Unless otherwise specified on the applicable specification sheet (see 3.1), the temperature of the case, body, and terminals shall not rise above ambient temperature more than s
35、hown in table II when using either the thermometer or thermocouple method. TABLE II. Allowable temperature rise in degrees Celsius (C). Casing or body Terminal Thermometer Thermocouple Thermometer Thermocouple 50 90 50 90 3.8 Resistance. Electrical resistance when applicable shall be as specified (s
36、ee 3.1 and 4.7.3). 3.9 Terminal strength. Fuse terminals shall not loosen or become damaged (see 4.7.4). 3.10 Overload interrupt. Fuses shall open the circuit within the time limits specified (see 3.1) without causing the case or body to char or fracture (see 4.7.5). The fuse shall remain in the ene
37、rgized circuit 1 minute minimum without any indication of the circuit closing again. 3.10.1 Low voltage overload interrupt. The fuses when specified, shall interrupt the overload currents within the time specified (see 3.1, 4.7.5.2, and 6.1.5.1). 3.11 Short circuit interrupt. Fuses shall remain inta
38、ct and shall open the circuit (see 4.7.6). The fuse shall remain in the energized circuit 30 seconds minimum without any indication of the circuit closing again. The insulation shall not puncture; the ferrules or body shall not rupture or separate, and the terminals shall not be shunted. Fuses shall
39、 not emit flame or molten metal sufficient to ignite surgical cotton surrounding the case. 3.12 Vibration. The fuses, when specified (see 3.1), shall not open when subjected to vibration tests (see 4.7.7). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-
40、,-,-MIL-PRF-15160K 5 3.13 Shock. The fuses, when specified (see 3.1), shall not open when subjected to shock tests (see 4.7.8). 3.14 Marking. Unless otherwise specified (see 3.1), each fuse shall be marked in accordance with method 1 of MIL-STD-1285, and either 3.14.1 or 3.14.2, or a combination of
41、both. 3.14.1 Ferrule and end cap marking. When fuse ferrules and end caps are marked, the marking shall include the following: a. PIN designation (see 1.2.1). b. Manufacturers name, trademark, or code symbol. 3.14.2 Labels. When fuse labels are used, the following shall apply. 3.14.2.1 Material. Lab
42、el material used shall enable the fuses to meet the performance requirements of this specification and shall show no evidence of peeling, wrinkling, ends lifting, or illegible ink markings (see 4.7.9.1). For guidance on label material, see 6.3.7. 3.14.2.2 Information. Fuse marking shall include the
43、information shown in the following example: Marking: Explanation: Fuse Component identification. F02A Style and characteristic. 250 V Voltage rating. 1/500 amps Current rating. S Silver-plated (when specified). Manufacturers symbol The manufacturers identification may be shown on the printed label o
44、r may be stamped on the fuse ferrule (or both). The print size shall be the largest possible which will permit all of the required information to appear on the label. 3.14.2.3 Label size. The width of the label for fuses 2 inches (50.8 mm) in length or less shall almost touch the fuse ferrule on eac
45、h end of the fuse. For fuses more than 2 inches (50.8 mm) in length, the label shall be large enough so that the markings will be legible. The label shall be centered on the fuse. The label shall completely wrap around the fuse body between the ferrules. Overlapping of the label upon itself is permi
46、tted, provided it does not overlap any of the printed information. For fuses not greater than .406 inch (10.3124 mm) diameter, the printed information shall run the length of the fuse body from ferrule to ferrule. For other fuse sizes, the printed information may run perpendicular to the fuse length
47、. 3.14.2.4 Label color. The label color shall be white. Permanent type alcohol-based printing ink shall be used. The color of the printing ink for the various fuses shall be as follows: Fuse characteristics: Color: A Black B Green BR Brown C Red Provided by IHSNot for ResaleNo reproduction or networ
48、king permitted without license from IHS-,-,-MIL-PRF-15160K 6 3.14.3 Marking of fuses with ratings not covered by specification sheets. Unless otherwise specified (see 6.2), each fuse shall be marked in accordance with method I of MIL-STD-1285 with the following: a. Style (see 1.2.1.1). b. Characteri
49、stic (see 1.2.1.2). c. Voltage rating (see 1.2.1.3). d. Current rating (see 1.2.1.4). e. Silver plating (see 1.2.1.5) (when required). f. Manufacturers name, trademark, or code symbol. 3.15 Soldering. Soldering shall minimize the spattering of solder and flux onto surrounding surfaces. Only noncorrosive fluxes shall be used, unless it can be shown that all corrosive products have been satisfactorily removed or neutralized
