Standard Wire & Cable Co.

Transcription

1 MIL-DTL (NEMA WC27500) Cable Designation All MIL-DTL cables are designated by a combination of digits and letters (not to exceed 6) which indicates the exact construction of each cable. Please note the following example of a MIL-DTL cable. Cable Description: M27500A 22 SB 3 T 23 () (2) (3) (4) (5) (6) (7) Classification: The cable will be of the following types and will be furnished in the basic wire size, type, number of wires, and shield and jacket styles, as specified. Unjacketed: 2 to 5 color coded wires, spirally laid without an overall outer jacket. ed: 2 to 5 color coded wires, spirally laid with an overall outer jacket. ed: A single wire, or 2 to 5 color coded wires spirally laid, with one or two overall shields. ed and ed: A single wire, or 2 to 5 color coded wires spirally laid, with one or two shields and one or two jackets. Specification Number (): All cables will carry this prefix. Identification Method (2): When 85% minimum shield coverage is required: "-" designates the preferred identification method (white wire with colored stripes) using Table IIIA; "F" designates the preferred identification method (white wire with colored stripes) using Table IIIB; "A" designates optional identification method A (solid colored wires) using Table IIIA; "G" designates optional identification method A (solid colored wires) using Table IIIB; "B" designates optional identification method B using Table IIIC; "K" designates optional identification method C; "L" designates optional identification method D (see mil spec for band marking specification). When 90% minimum shield coverage is required: "C" designates the preferred identification method (white wire with colored stripes) using Table IIIA; "H" designates the preferred identification method (white wire with colored stripes) using Table IIIB; "D" designates optional identification method A (solid colored wires) using Table IIIA; "J" designates optional identification method A (solid colored wires) using Table IIIB; "E" designates optional identification method B using Table IIIC; "M" designates optional identification method C; "N" designates optional identification method D (see mil spec for band marking specification). Conductor Size (3): This position identifies the wire size. Wire size depends upon the basic wire specification (see 4). Basic Wire Specification (4): The component wires are identified by a one or two letter code. A listing of the basic wire specifications can be found in Table I. Number of Conductors (5): M27500 currently specifies from to 5 conductors for shielded or shielded and jacketed cables, and from 2 to 5 for unshielded unjacketed or unshielded jacketed cables. Cables with 0 to 5 conductors are limited to 2 AWG and smaller. (6): The specific shield style and material are designated by a single letter code and are detailed in- Table I A. (7): Cable jacketing materials are specified by a two digit code and are detailed in Table I B E. Vista Bella Way,, CA 90220

2 Table I - Basic Wire Specifications A MIL-DTL-5086/ CA /3 SP /43 MF MIL-DTL-8044/7 B MIL-DTL-5086/2,2 CB /4 SR /44 MG MIL-DTL-8044/8 2 C MIL-DTL-5086/3,2 CC /5 SS /45 MH MIL-DTL-8044/9 P MIL-DTL-5086/4 TE /6 ST /46 MJ MIL-DTL-8044/0 AA MIL-DTL-5086/5 TF /7 WB /80 3 MK MIL-DTL-8044/ 2 AB MIL-DTL-5086/6 TG /8 WC /8 3 ML MIL-DTL-8044/2 AD MIL-DTL-5086/7 TH /9 WE /82 3 MM MIL-DTL-8044/3 H MIL-DTL-8777, MS 2547 TK /20 WF /83 3 MR MIL-DTL-838/7 3 F MIL-DTL-8777, MS 270 TL /2 WG /84 3 MS MIL-DTL-838/8 3 EA / TM /22 WH /85 3 MT MIL-DTL-838/9 3 E /2 TN /23 WJ /86 3 MV MIL-DTL-838/0 3 RA /3 JB /28 WK /87 3 MW MIL-DTL-838/ 3 RB /4 JC /29 WL /88 3 MY MIL-DTL-838/2 3 VA /5 JD /30 WM /89 3 NA MIL-DTL-838/3 3 WA /6 JE /3 WN /90 3 NB MIL-DTL-838/4 3 SA /7 SB /32 WP /9 3 NE MIL-DTL-838/7 3 TA /8 SC /33 WR /92 3 NF MIL-DTL-838/8 3 LE /9 SD /34 JA MIL-DTL-25038/ NG MIL-DTL-838/9 3 LH /0 SE /35 JF MIL-DTL-25038/3 NH MIL-DTL-838/20 3 RC / SM /4 MD MIL-DTL-8044/5 2 NK MIL-DTL-838/2 3 RE /2 SN /42 ME MIL-DTL-8044/6 NL MIL-DTL-838/22 3 Not for use in aerospace applications. 2 Inactive for new design. ³ Not for Naval Air Systems Command usage. Table I A - Letter Code Single Double Description Maximum temperature limit for shield material C F U --- No shield N/A N/A T V Round, tin-coated copper S W Round, silver-coated copper N Y Round, nickel-coated copper F Z Round, stainless steel C R Round, heavy nickel-coated copper M K Round, silver-coated high strength copper alloy P L Round, nickel-coated high strength copper alloy G A Flat, silver-coated copper H B Flat, silver-coated high strength copper alloy * # Flat, nickel-coated copper J D Flat, tin-coated copper E X Flat, nickel-coated high strength copper alloy I Q Flat, nickel-chromium alloy E. Vista Bella Way,, CA

3 Table I B - and Color Numeric Code Single Double Description Temperature Limit for C F No jacket N/A N/A 0 5 Extruded white polyvinylchloride (PVC) Extruded clear polyamide in accordance with ASTM-D White polyamide braid impregnated with clear polyamide finisher over a polyester tape Polyester braid impregnated with high temperature finishers over polyester tape Extruded clear fluorinated ethylene propylene (FEP) Extruded or taped and heat sealed white polytetrafluoroethylene (PTFE) White polytetrafluoroethylene (PTFE) treated glass braid impregnated and coated with polytetrafluoroethylene finisher over presintered polytetrafluoroethylene tape Cross-linked white extruded polyvinylidene fluoride (PVDF ) Extruded white fluorinated ethylene propylene (FEP) Extruded clear polyvinylidene fluoride (PVDF) Tape of natural polyimide combined with clear fluorinated ethylene propylene (FEP) wrapped and heat sealed with (FEP) outer surface Tape of natural polyimide combined with fluorinated ethylene propylene (FEP) wrapped and heat sealed with polyimide outer surface 4 64 Extruded white ethylene-tetrafluoroethylene copolymer (ETFE) Extruded clear ethylene-tetrafluoroethylene copolymer (ETFE) Braid of aromatic polyamide with high temperature finisher over presintered polytetrafluoroethylene (PTFE) tape Extruded white ethylene chlorotrifluoroethylene (ECTFE) Extruded clear ethylene chlorotrifluoroethylene (ECTFE) Extruded white perfluoroalkoxy (PFA) Extruded clear perfluoroalkoxy (PFA) Tape of polyimide combined with clear fluorinated ethylene propylene (FEP) wrapped and heat sealed with opaque polyimide outer surface Extruded white cross-linked modified ethylene-tetrafluoroethylene copolymer (XLETFE) Tape layer of white polytetrafluoroethylene (PTFE) wrapped over a tape layer of natural polyimide combined with FEP and heat sealed Polyvinylchloride (PVC) materials shall not be used for aerospace applications. 2 material 02/52 is not to be used for cables having a diameter of 0.25 in (6.38 mm) or greater. 3 materials 08, 0, 58, and 60 are not to be used for cables having a diameter of 0.40 in (0.9 mm) or greater. 4 Not for Naval Air Systems Command usage. 5 Inactive for new design E. Vista Bella Way,, CA 90220

4 Table II - Allowable and s for Each Basic Type Wire Cable Type Basic Wire Specification ed ed ed and ed MIL-DTL-5086 T 00 Unshielded 0, 02, 03, 0 T 0, 02, 03, 0 MIL-DTL-8777 S 00 Unshielded 4 S 4-2,20-23, , 20, 2 4-8, 20, , 05, 09, 4-8, 20, 2 04, 05, 09, 4-8, 20, , , 05, 08, 09, 4-8, 20, 2, 23, 24 04, 05, 08, 09, 4-8, 20, 2, 23, , 2, 4-8, 20, 2, 22, 24, 2, 4-8, 20, 2, 22, 24 MIL-DTL-25038/ & /3 F, C 00 Unshielded 06, 07 F, C 06, 07 MIL-DTL-8044 T,S 00 Unshielded 04, 08, 09, 4, 6, 23 T,S 04, 08, 09, 4, 6, 23 MIL-DTL , 09,, 2, 22 05, 09,, 2, 22 See Table I A and Table I B for jacket material cross-reference. T = Tin, S = Silver, N = Nickel, F = Stainless steel, C = Heavy coated nickel Table III C - Color of Insulation for Identification of Wire Sizes in accordance with MIL-STD-686 Wire Size /0 2/0 Insulation Color (solid) Black Blue Green Red White 2 Blue Green Yellow Brown Red Blue Yellow Red White Blue Green 26 AWG is inactive for new design. 2 For MIL-DTL-838 basic wire, the insulation color may be opaque dark yellow or unpigmented polyimide resin color E. Vista Bella Way,, CA

5 No. of Wires in Cable Standard Wire & Cable Co. Except where preferred color on basic wire specification sheet is not white. 2 Where basic wire is MIL-DTL-838, a brown helical stripe shall be used. 3 Where basic wire is MIL-DTL-838, a brown and white helical stripes shall be used. 4 For cables having more than 0 conductors, the wires shall be a white base identified by double color tracers as indicated. No. of Wires in Cable Table III A - Circuit Identification Colors for Basic Wires in Cable in accordance with, MIL-DTL-25038, MIL-DTL-8044, or MIL-DTL Basic (white) 2 White Blue 3 White Blue Orange 4 White Blue Orange Green 5 White Blue Orange Green Red 6 White Blue Orange Green Red Black 7 White Blue Orange Green Red Black Yellow 2 8 White Blue Orange Green Red Black Yellow 2 Violet 9 White Blue Orange Green Red Black Yellow 2 Violet Gray 0 White Blue Orange Green Red Black Yellow 2 Violet Gray Brown 3 4 White Blue Orange Green Red Black Yellow 2 Violet Gray Brown 3 Blue/Blue 2 4 White Blue Orange Green Red Black Yellow 2 Violet Gray Brown 3 Blue/Blue Orange/Orange 3 4 White Blue Orange Green Red Black Yellow 2 Violet Gray Brown 3 Blue/Blue Orange/Orange Green/Green 4 4 White Blue Orange Green Red Black Yellow 2 Violet Gray Brown 3 Blue/Blue Orange/Orange Green/Green Red/Red 5 4 White Blue Orange Green Red Black Yellow 2 Violet Gray Brown 3 Blue/Blue Orange/Orange Green/Green Red/Red Black/Black Inactive for new design for MIL-DTL Wire Number Table III B - Circuit Identification Colors for Basic Wires in Cable in accordance with MIL-DTL-5086, MIL-DTL-8777,, MIL-DTL-25038, MIL-DTL-8044, or MIL-DTL-838 Basic (white) Red, blue Red, blue, yellow Red, blue, yellow, green Red, blue, yellow, green, basic Red, blue, yellow, green, basic, black Red, blue, yellow, green, basic, black, brown Red, blue, yellow, green, basic, black, brown, orange Red, blue, yellow, green, basic, black, brown, orange, violet Red, blue, yellow, green, basic, black, brown, orange, violet, gray Identification Colors for Respective Wires in Cable Red, blue, yellow, green, basic, black, brown, orange, violet, gray, red/white 2 Red, blue, yellow, green, basic, black, brown, orange, violet, gray, red/white 2, blue/white 2 Red, blue, yellow, green, basic, black, brown, orange, violet, gray, red/white 2, blue/white 2, yellow/white 2 Red, blue, yellow, green, basic, black, brown, orange, violet, gray, red/white 2, blue/white 2, yellow/white 2, green/white 2 Red, blue, yellow, green, basic, black, brown, orange, violet, gray, red/white 2, blue/white 2, yellow/white 2, green/white 2, black/white 2 Color designation indicates a solid color with stripe, e.g., red/white - solid red insulation with a white stripe E. Vista Bella Way,, CA 90220