A320 ESPM Electrical Standard Practices Manual 3(12)

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 -Find the point of passage on the cable bundle.
 -Remove the cable ties at this point over a length sufficient for easy access to the cables in the middle of the bundle.
 -Clean all the parts to be reactivated with a CLEANING AGENTS (Material No. 11-003) or equivalent.
 -The surfaces must be fully dry before you apply the SEALANTS (Material No. 09-052) or (Material No. 09-012E)
 (3) Preparation of the Compound
 -In a container, weigh the necessary quantity of SEALANTS base R (Material No. 09-052) or (Material No. 09-012E) (Refer to tables R that follow) .
 -Add the applicable weight of SEALANTS hardener (Material No. 09-052) or (Material No. 09-12E) (Refer to tables that follow) .
 -----------------------------------------| Material 09-052 | |---------------------------------------| | 2 % Mix - 12 mn Pot life | |---------------------------------------| | Base Weight | Hardener Weight | | RTV9161 | N9162 | |---------------------------------------| | 50 g (1.76 oz) | 1g (0.03 oz) | | 100 g (3.52 oz) | 2g (0.07 oz) | | 150 g (5.29 oz) | 3g (0.1 oz) | | 200 g (7.05 oz) | 4g (0.14 oz) | | 250 g (8.81 oz) | 5g (0.17 oz) | | 300 g (10.58 oz) | 6g (0.21 oz) | -----------------------------------------

 

20-43-42 Page 3

 -----------------------------------------------------------------------------
|  Material 09-012E |
 |---------------------------------------------------------------------------|
 | 10% Mix |  0.1% Mix |
 |---------------------------------------------------------------------------|
 | Base Weight | Hardener Weight | Base Weight | Hardener Weight |
 | RTV88 | RTV9910 | RTV88 | DBT |
 |---------------------------------------------------------------------------|
 | 50 g (1.76 oz) | 5 g (0.17 oz) | 50 g (1.76 oz) | 0.5 g (0.01 oz) |
 | 100 g (3.52 oz) | 10 g (0.35 oz) | 100 g (3.52 oz) | 1 g (0.03 oz) |
 | 150 g (5.29 oz) | 15 g (0.53 oz) | 150 g (5.29 oz) | 1.5 g (0.05 oz) |
 | 200 g (7.05 oz) | 20 g (0.70 oz) | 200 g (7.05 oz) | 2 g (0.07 oz) |
 | 250 g (8.81 oz) | 25 g (0.88 oz) | 250 g (8.81 oz) | 2.5 g (0.08 oz) |
 | 300 g (10.58 oz) | 30 g (1.05 oz) | 300 g (10.58 oz) | 3 g (0.10 oz |
 -----------------------------------------------------------------------------
-Fully mix the two components (e.g. with a drill with a mixer end fitting),
 -When you have a homogeneous mixture, apply the compound.
R  ____NOTE : The pot life of the compound depends on the quantity of
R  catalyst in the base product. Quantify the proportions according to the time necessary to do the work. For the cable addition or repair procedures:
 -When (Material No. 09-052) is used, it is recommended to use the 2 % mix which gives a pot life of 12 mn.
 -When (Material No. 09-012E) is used, it is recommended to R use the 10% mix (with hardener RTV9910) or 0.1% mix (with R hardener DBT which gives a pot life of 60 mn minimum.
 ____
NOTE : For (Material No. 09-052), the compound is fully cured after 72 hours. Heating in an oven can decrease the curing time, as shown on the table below for a 2 % mix :
 ----------------------------------------| Material 09-052 | ----------------------------------------| Temperature | Curing Time | |--------------------------------------| | 30 DEG.C (86 DEG.F) | 6 hours | | 35 DEG.C (95 DEG.F) | 5.5 hours | | 40 DEG.C (104 DEG.F) | 5 hours | | 45 DEG.C (113 DEG.F) | 4.5 hours | | 50 DEG.C (122 DEG.F) | 4 hours | ----------------------------------------

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 ____
NOTE : For (Material No. 09-012E), the compound is fully cured after 24 hours. Pot life may be increased by refrigerating the mixed material to 0 deg.C (32.00 deg.F). Cure time may be shortened by using mild heat up to 93 deg.C
 (199.40 deg.F) maximum.
 (4) Sealing procedure
 (Ref. Fig. 002, 003, 004)

 _______
WARNING : DO NOT GET THE COMPOUND ON YOUR SKIN OR IN YOUR EYES. IF YOU GET IT ON YOUR SKIN:
 -
REMOVE AS MUCH AS POSSIBLE WITH A CLEAN CLOTH

 -
REMOVE THE REMAINING COMPOUND WITH SOAP AND FLUSH WITH
 CLEAN WATER.
 IF YOU GET IT IN YOUR EYES:

 

 -FLUSH IT AWAY WITH CLEAN WATER

 -GET MEDICAL AID IF NECESSARY.

 -Loosen the threaded end fitting that holds the protective sheath and move it sufficiently away from the body of the pressure seal.
 -Install a colored cable tie (NSA935401) on the cables at the theoretical position of the base bearing face on the bulkhead.
 -On the pressure seal, measure and record the distance D between the base bearing face and the outer end of the threaded part.
 -Put a split plastic washer on the cables at distance D from the colored cable tie.
　
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