1、 INCH-POUND MIL-DTL-24643/62A 28 January 2010 SUPERSEDING MIL-DTL-24643/62 1 March 2007 DETAIL SPECIFICATION SHEET CABLE, ELECTRICAL, TYPE LSPB2SD (INCLUDING VARIATIONS LSPB2SDW, LSPB2SDOS, LSPB2SDOSW) This specification is approved for use by all Departments and Agencies of the Department of Defens
2、e. The requirements for acquiring the product described herein shall consist of this specification sheet and MIL-DTL-24643. This cable is a single or double shield twisted pair intended for use with Profibus data communication systems. This cable can be manufactured in four variations: LSPB2SD (sing
3、le shield with drain, non-watertight), LSPB2SDW (single shield with drain, watertight), LSPB2SDOS (double shield with drain, non-watertight), LSPB2SDOSW (double shield with drain, watertight). Construction (Waterblocked and Non-Waterblocked) First - Copper conductor, solid, 22 AWG nominal. Second -
4、Polyolefin insulation. Wall thickness as necessary, in order for the completed cable to comply with the specified electrical requirements. Third - Two insulated conductors, twisted together with appropriate fillers to make a round cable such that they comply with the electrical requirements specifie
5、d herein. Identification codes for pair red and green. Fourth - For watertight variants, waterblocking material shall comply with the requirements of 3.3.5 and 3.3.5.3 of MIL-DTL-24643. Fifth - Optional binder. Sixth - 24 AWG nominal tin-coated copper drain wire. Seventh - Round, tin-coated copper b
6、raid, optimized for 01 and 02 variants. Eighth - Optional binder or optional waterblocker. Ninth - Cross-linked polyolefin jacket, minimum thickness of 0.040 inch for the 01 and 02 variants. Overall diameter (OD): 0.3600.030 inch for the 01 variant, 0.3750.030 inch for the 02 variant (this completes
7、 the 01 and 02 variants). AMSC N/A FSC 6145 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24643/62A Construction Variant for Types LSPB2SDOS and LSPB2SDOSW Tenth - For 04 variant: Waterblocking material in accordance with 3.3.5 and 3.3.5.3
8、of MIL-DTL-24643. Eleventh - Optional binder or optional waterblocker. Twelfth - Round, tin-coated copper braid, optimized. Thirteenth - Optional binder or optional waterblocker. Fourteenth - Cross-linked polyolefin jacket, minimum wall thickness of 0.040 inch (this completes construction of the 03
9、and 04 variants). TABLE I. Details. Overall diameter (inches) Military part no. M24643/62 Type Number of pairs Min. Max. -01 LSPB2SD-1 1 0.330 0.390 -02 LSPB2SDW-1 1 0.345 0.405 -03 LSPB2SDOS-1 1 0.440 0.500 -04 LSPB2SDOSW-1 1 0.450 0.530 REQUIREMENTS: Qualification Required. INSPECTION: Basic Elect
10、ricals: DC resistance (ohms/100 m, max.) 5.45 DC resistance unbalance (percent, max.) 5 Jacket flaws No failure Conductor and shield continuity No failure Voltage withstand Conductor to conductor 1.5kVAC or 2.5kVDC Conductor to shield 1.5kVAC or 2.5kVDC Group A: Visual and dimensional No failure Wat
11、ertightness (Types LSPB2SDW-1 groups A, B, C and D; plus the following: Aging and compatibility (cable) (952 C) No failure Abrasion resistance (jacket) 75 Acid gas equivalent (percent, max.) Jacket 2 Fillers 8 Insulation 18Halogen content (percent, max.) Jacket 0.2 Fillers 0.2Insulation 0.2 Immersio
12、n (jacket) Tensile strength (percent of unaged, min.) 50 Elongation (percent of unaged, min.) 50 Smoke index, max. Jacket 25 Fillers 55Insulation 45 Toxicity index (max.) Jacket 5 Fillers 5Insulation 1.5Durometer (jacket) Type A (hardness, min.) 80 Watertightness (max. leakage, cm3) 65.5 Weathering
13、(jacket) No failure UNIT ORDERING LENGTHS: Type and size Feet (nominal) LSPB2SD, LSPB2SDW, LSPB2SDOS, LSPB2SDOSW 500 CHANGES FROM PREVIOUS ISSUE: Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes. 4 Provided by IH
14、SNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24643/62A 5 Custodians: Preparing Activity: Army MI Navy SH Navy SH (Project 6145-2009-105) Review Activities: Army AR, AV, CR Navy CG, EC DLA CC NOTE: The activities listed above were interested in this docu
15、ment as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at http:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
