1、METRICMIL-PRF-85045/18B16 September 1999SUPERSEDING MIL-C-85045/18A 26 May 1995 PERFORMANCE SPECIFICATION SHEETCABLE, FIBER OPTIC, FOUR FIBERS, ENHANCED PERFORMANCE, CABLE CONFIGURATIONTYPE 2 (OFCC), APPLICATION B (SHIPBOARD), CABLE CLASS SM AND MM, (METRIC)This specification is approved for use by
2、all Departments and Agencies of the Department of Defense.The requirements for acquiring the product described herein shall consist of this specification and MIL-PRF-85045.CLASSIFICATION:Fiber optic cable configuration type: 2 (OFCC).Fiber cable class: MM (Graded-index, glass core and glass cladding
3、, multimode)SM (Dispersion-unshifted, glass core and glass cladding,single-mode)DESIGN AND CONSTRUCTION:Fiber:Class MM fibers shall be in accordance with MIL-PRF-49291/6.Class SM fibers shall be in accordance with MIL-PRF-49291/7.Buffer diameter: 900 50 m.OFCC:Dimensions and configuration: See figur
4、e 1.NOTE:1. Dimensions are in millimeters.FIGURE 1. Optical fiber cable component.AMSC N/A 1 of 5 FSC 6015DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-85045/1
5、8B2Mass per unit length: 270 N.Dynamic bend tensile load: 90 N minimum.Jacket material: The OFCC jacket shall be composed of a low halogen, low smoke,low toxicity polymer material.Finished cable:Dimensions and configuration: See figure 2. Four OFCC units shall be helicallylaid over the central membe
6、r with a maximum lay of 25 cm. The minimum outerjacket thickness shall be not less than 1.0 mm (establishes compatibility withtermination and penetration devices).NOTES:1. OFCC - Optical fiber cable component.2. Dimensions are in millimeters.FIGURE 2. Four OFCC fiber optic cable.Number of fibers: 4
7、(one per OFCC).Concentricity: 0.8.Mass per unit length: 1875 N.Operating tensile loading: Applicable.Low temperature flexibility: The exposure temperature shall be -40OC.Cyclic flexing: 500 cycles at 25OC 2OC and 100 cycles at -28OC 2OC. Change inoptical transmittance measurements are to be made eve
8、ry 100 cycles for the 500cycle exposure and every 25 cycles for the 100 cycle exposure. Each change inoptical transmittance measurement shall be performed with the test specimen inthe same position in the test cycle. The cycling may be halted to perform thechange in optical transmittance measurement
9、.Crush: Applicable.Cable twist bending: 500 cycles at 25OC 2OC and 100 cycles at -28OC 2OC. Change in optical transmittance measurements are to be made every 100 cycles forthe 500 cycle exposure and every 25 cycles for the 100 cycle exposure. Eachchange in optical transmittance measurement shall be
10、performed with the testspecimen in the same position in the test cycle. The cycling may be halted toperform the change in optical transmittance measurement.Radial compression: Applicable.Impact: 50 cycles at 25OC 2OC and 20 cycles at -40OC 2OC. Upon final visualexamination at all tested temperatures
11、, there shall be no jacket damage such assplitting or cracking.Hosing: Both low pressure and hydrostatic pressure are applicable.Hydrostatic: 7.7 MPa for M85045/18-01P and M85045/18-02P.Dripping: Applicable.Cable scraping resistance: 750 cycles.Provided by IHSNot for ResaleNo reproduction or network
12、ing permitted without license from IHS-,-,-MIL-PRF-85045/18B4Cable to cable abrasion: 500 cycles.Environmental properties:Temperature range:Operating: -28OC to 65OC.Nonoperating: -40OC to 70OC.Storage: -40OC to 70OC.Temperature cycling: Change in optical transmittance measurements may be madeperiodi
13、cally. At a minimum, one optical transmittance measurement shall be madeover a period of 1 hour at the end of each temperature plateau.Temperature humidity cycling: Change in optical transmittance measurements maybe made periodically. At a minimum, one optical transmittance measurement shallbe made
14、at the end of each temperature plateau.Storage temperature: Applicable.Cable life: Applicable, except that the jacket material shall be tested at 175OCfor 4 hours.Weathering: Applicable.Fluid immersion: Exposure to automobile gasoline and tap water are not requiredand the following test temperatures
15、 shall be used for the fluids indicated: fueloil (98OC to 100OC), turbine fuel (48OC to 50OC) and lubricating oil (98OC to100OC).Flame extinguishing: Applicable.Smoke generation and flame propagation: Applicable, except the pass/failcriteria shall be as follows. The peak optical density and the aver
16、age opticaldensity of smoke produced shall be not greater than 0.5 and 0.15 respectively. In addition, the flame spread-time product at the 10 minute point shall be notgreater than 27.5 meters-minutes when calculated in accordance with ASTM-E-84.Shock: Applicable.Paint susceptibility: Applicable.Ele
17、ctromagnetic effects: Applicable.Chemical properties:Halogen content: 0.2 percent.Cross-link verification: This test is applicable for cables with cross-linkedjackets only. The test shall be conducted in accordance with ICEA standard T-28-562 and run at 200OC. The test shall be sequenced after the w
18、eathering test in thequalification test sequence and after the fluid immersion test in the group Cquality conformance test sequence. The hot creep shall not exceed 100 percent andthe hot creep set shall not exceed 10 percent.Part or Identifying Number (PIN) (see table I):M85045/18-01P (Multimode).M8
19、5045/18-02P (Single-mode).“P“ designates 7.7 Mpa hydrostatic pressure proof cable.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-85045/18B5TABLE I. Supersession data.PIN SupersedingM85045/18-01PM85045/18-01M85045/18-01NM85045/18-01TM85045/18
20、-02PM85045/18-02M85045/18-02NM85045/18-02TQualification by similarity:Manufacturers who produce products for both MIL-PRF-85045/17 and thisspecification sheet and are qualified under MIL-PRF-85045/17 and pass theattenuation rate, cold bend, impact, low pressure, abrasion, smoke generation andflame p
21、ropagation, flame extinguishing, and size inspections specified herein,are qualified under this specification sheet. Testing may be performed on asingle length of cable, with a minimum length of 0.5 km.Manufacturers who are qualified under this specification sheet for multimodefiber cable and whose
22、single-mode fiber cable passes the visual and mechanical,attenuation rate, temperature cycling, humidity, storage temperature, cyclicflexing, crush, cable twist-bending, impact (low temperature only), tensileloading and elongation, operating tensile loading, thermal shock and dynamic bendinspections
23、 specified herein are qualified under this specification sheet forsingle-mode fiber cable. This qualification by similarity is applicable if theonly difference between the previously qualified cable and the cable under testis that the optical fiber has been changed from a multimode fiber to a single
24、-mode fiber. Testing may be performed on either one or two lengths of cable, eachwith a minimum length of 0.5 km. Test order must be observed up to and includingthe storage temperature test. If only one cable length is used the thermal shocktest shall be performed after the storage temperature test.
25、Manufacturers who are qualified under MIL-PRF-85045/17 for both multimode andsingle-mode fiber cable and under this specification sheet for multimode fibercable are qualified under this specification sheet for single-mode fiber cable.Custodians: Preparing activity:Army - CR Navy - SHNavy - SHAir Force - 11 Agent:NASA - NA DLA - CCReview activities: (Project 6015-0034-06)Army - AR, AV, MINavy - EC, YDAir Force - 02, 19, 80, 99DLA - CCProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
