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(2) P/N characteristics
R
R
R
R
R
R
(a)
Temperature Continuous operating temperature is 200 deg.C (392.00 deg.F). Peak operating temperature is 260 deg.C (500.00 deg.F). Resistance to fire 1100 deg.C (2012.00 deg.F) for 20 mn.
(b)
Type code --------------------------------------------------| Part Code | Cable Size | Cables Number | |------------------------------------------------| | 01 | 00 | 4 | |---------------|----------------|---------------| | 02 | 1 | 4 | |---------------|----------------|---------------| | | 0 | 3 | | 03 |----------------|---------------| | | 1 | 1 | |---------------|----------------|-------------- | | | 0 | 3 | | 04 |----------------|---------------| | | 4 | 1 | --------------------------------------------------
(c)
Cavity arrangements
(Ref. Fig. 012)
G. Installation Procedure
(1)
Flexible Wires (Gauge < or = 20)
(Ref. Fig. 013)
-Cut the cables and make sure that there are no burrs or wires which come out.
-Install the wire in the guiding tool.
-Guide the tool nose through the cavity until the tool main body protrudes from the far side a little way.
-Withdraw the removable nose.
-
Carefully feed the cable through the tool.
-
Carefully withdraw the tool from the bung.
(2)
Other Wires
(Ref. Fig. 013)
Prepare the end of the conductor as follows :
-Strip the wire on a length of 10 mm (0.3937 in.).
-Put a 15 mm (0.5905 in.) long heat shrinkable sleeve NSA937211-XXX on the stripped part.
-Heat-shrink the sleeve.
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R Pressure Seal - Grommet Type - Sealing Plug and Insulation E0073, NSA934502 and NSA934504
R Figure 013
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Push the cable through the feedthough.
Carefully pull on the cable until it is in the correct position.
(3) Insulation
R (Ref. Fig. 013)
R In all unwired cavity, a sealing plug must be installed.
R All the smallest wires shall be prepared to ensure insulation with
R shrink sleeve. If more than one sleeve is required, the outer sleeve
R shall be longer than the inner sleeve.
R H. Wire addition procedure
R - When one free cavity is available, hold the sealing plug and insert new
R wire.
R - When there is no free cavity, this is not possible .
R J. Wire replacement procedure
R - Cut the wire at each extremity of the pressure seal, hold the damaged
R wire and insert the new one.
____________________________________________________________PRESSURE SEALS - COMPOUND FILLED - DESCRIPTION AND OPERATION
R _______1. General Compound-filled pressure seals installed on aircraft have the following code: - ABS0122 Aluminum shell for high temperature. - NSA934710 Nylon shell for low temperature.
_______2. ABS0122
A. P/N identification ABS0122 28 | | | ------------------ Shell size -------------------------- Standard P/N
B. P/N characteristics (Ref. Fig. 001)
(1) Temperature Operating temperature is -55 DEG.C (-67.00 DEG.F) to 200 DEG.C (392.00 DEG.F).
(2) Material : Shell and nut : Aluminum alloy, nickel plated "O" ring: Elastomeric Fluorosilicone.
C. Procedure
R R R R R R R R R _______WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL MATERIALS ONLY WITH A GOOD FLOW OF AIR THROUGH THE WORK AREA. THESE MATERIALS ARE POISONOUS AND FLAMMABLE AND SKIN IRRITANTS. OBEY THE MANUFACTURERS INSTRUCTIONS. PUT ON PROTECTIVE CLOTHING. DO NOT GET THEM IN YOUR MOUTH. DO NOT SMOKE. DO NOT BREATHE THE GAS. GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
(1) Materials and tools - Adhesive tape (Not specific) - Temporary cable tie : NSA935401. - SEALANTS (Material No. 09-052) or (Material No. 09-012E) - CLEANING AGENTS (Material No. 11-003) - BONDING AND ADHESIVE COMPOUNDS (Material No. 08-004) - Extrusion gun : SEMCO model 650
R Pressure Seal (Compound Filled) - P/N Characteristics R ABS0122 R Figure 001
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-SEMCO cartridge
-Dia. 4 mm (0.1574 in.) polyethylene nozzle
(2) Preparation
_______
CAUTION : DO THE PREPARATION PROCEDURE VERY CAREFULLY. IF THE SURFACE OF THE PARTS IS NOT FULLY CLEAN AND DRY, THE SEALANT WILL NOT BOND CORRECTLY TO THE PARTS. THE PRESSURE SEAL WILL THUS NOT BE CORRECTLY SEALED. 中國航空網(wǎng) m.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：A320 ESPM Electrical Standard Practices Manual 3(11)
