4.
Procedure
_________
5.
Close-up
Subtask 20-28-00-869-061
R A. Measurement of the Electrical Resistance
R CAUTION : MAKE SURE THAT YOU DO NOT CAUSE DAMAGE TO THE EQUIPMENT OR THE_______
R STRUCTURE WHEN YOU USE SHARP-POINT PRODS.
R CAUTION : MAKE SURE THAT THE TEST EQUIPMENT IS CORRECTLY INSTALLED BEFORE_______
R YOU MEASURE THE BONDING VALUES.
R (1) Equipment
R (a) Milliohmmeter, multirange, with the related leads and prods:
R 1_ Range and output test current:
R - 500 milliohms with an output test current of 1 ampere (for a
R max. resistance value of more than 200 milliohms),
R - 200 milliohms with an output test current of 10 amperes (for
R a max. resistance value of not more than 200 milliohms).
R 2_ Accuracy:
R - better than plus or minus 10 % of the measured value.
R 3_ For example: Milliohmmeter GUERPILLON type DIGITHOM 1998
R (2) Connect the test equipment at the applicable locations (Ref. TASK 20-
R 28-00-869-002).
R (3) Measure the electrical resistance.
R (4) Make sure that the measured values are not higher than the maximum
R permitted values (Ref. TASK 20-28-00-869-002).
R (5) Remove the test equipment.
R
________
R
Subtask 20-28-00-942-094
R A. Close Access
(1) Make sure that the work area is clean and clear of tool(s) and other items.
TASK 20-28-00-720-006
Check of the Electrical Bonding of the Fluid Systems
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific Milliohmmeter (not for test in the fuel tanks) No specific Milliohmmeter - intrinsic safety (for test in the fuel tanks)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
20-28-00-869-002 Table of the Maximum Permitted Resistance Values 28-00-00-910-001 Fuel Safety Procedures 28-10-00-910-001 Safety Procedures When You Do Work in a Fuel Tank
3. Job Set-up
__________
Subtask 20-28-00-869-062
A. Preparation
(1) For test of fluid system components (not in the fuel tanks)
(a) Equipment 1 Milliohmmeter (not for test in the fuel tanks) with the
_ related leads and prods: - output test current: 0.1 amperes maximum
-range: 500 milliohms minimum R - precision: better than plus or minus 10 % of the measured R value.
(2) For test of fluid system components in the fuel tanks WARNING : BEFORE YOU DO WORK IN A FUEL TANK, MAKE SURE THAT YOU OBEY
_______ ALL THE SAFETY PROCEDURES. THIS WILL PREVENT INJURY TO PERSONS AND/OR DAMAGE TO THE AIRCRAFT.
WARNING : FOR TESTS IN THE FUEL TANKS, MAKE SURE THAT YOU USE AN
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