An image of BMS 13-55 cable, stripped to show the different layers.

Key Features

  • Firezone wires for aircraft engine applications are designed to operate continuously at 260°C
  • Firezone applications are designed to operate for a minimum of 15 minutes at up to 2000°F (1093°C), including in a direct flame
  • Firezone qualification must pass BSS 7324 and M25038 Shake and Bake Test

 

Shake and Bake Test Description

  • Wire must withstand a flame temperature of 2,000° ± 50°F for 15 minutes
  • After the flame has been stabilized, the wire is vibrated 30 times per second, with the rack having a maximum total excursion (overall movement) of approximately .06 inches (1.52mm)
  • After 15 minutes, the lowest insulation resistance is measured
  • No insulation can flake or fall off during the flame exposure
Firezone Requirements v. Results
  Requirements Results
BMS 13-55 10kΩ 500kΩ

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Product Construction

 

Conductor Nickel-plated copper
Insulation Impregnated inorganic fiber and TFE coated glass braid
Jacket Seamless-wrap PTFE tape
Identification Surface printed per BMS 13-55
Colors Color coated per BMS 13-55
Voltage Rating 600V
Temperature Rating -65 to 260°C

Mechanical/Environmental Performance

Boeing P/N P/N AWG Stranding Nominal Conductor Diameter Nominal Insulation Diameter Weight lbs/1000ft (kg/1000M) Maximum Resistance
BMS13-55T01 C01 G12 12-BF1-1925 12 19/25 0.088(2.24) 0.157(3.99) 29.11(19.5) 2.78(9.12)
BMS13-55T01 C01 G14 14-BF1-1927 14 19/27 0.07(1.78) 0.123(3.12) 18.25 (12.3) 4.32 (14.2)
BMS13-55T01 C01 G16 16-BF1-1929 16 19/29 0.055(1.39) 0.108(2.74) 12.71(8.5) 6.86 (22.5)
BMS13-55T01 C01 G18 18-BF1-1930 18 19/30 0.049(1.24) 0.101(2.57) 10.53(7.1) 9.14(30.0)
BMS13-55T01 C01 G20 20-BF1-1932 20 19/32 0.039(.991) 0.093(2.36) 8.01(5.4) 14.57(47.9)
BMS13-55T01 C01 G22 22-BF1-1934 22 19/34 0.031(.787) 0.086(2.18) 6.35(4.3) 23.7(77.7)