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时间:2011-02-24 09:14来源:蓝天飞行翻译 作者:admin
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_______ INTRINSIC SAFETY MILLIOHMMETER WHICH:
 -AGREES WITH THE LOCAL STANDARDS FOR INTRINSIC SAFETY, AND
 -HAS AN OUTPUT TEST CURRENT OF NOT MORE THAN 0.2 AMPERE. TEST CURRENTS HIGHER THAN 0.2 AMPERE CAN BE DANGEROUS.
 (a)
 Safety precautions 1 Obey the safety procedures (Ref. TASK 28-10-00-910-001) and

_ (Ref. TASK 28-00-00-910-001) when you do work in a fuel tank.

 (b)
 Equipment 1 Milliohmmeter - intrinsic safety (for test in the fuel tanks),


_ with the related leads and prods: - output test current: 0.2 amperes maximum
 -range: 500 milliohms minimum R - precision: better than plus or minus 10 % of the measured R value. R
 4. Procedure
_________
 Subtask 20-28-00-869-063

 A. Measurement of the Electrical Resistance CAUTION : MAKE SURE THAT YOU DO NOT CAUSE DAMAGE TO THE EQUIPMENT OR THE
_______
 STRUCTURE WHEN YOU USE SHARP-POINT PRODS.

 CAUTION : MAKE SURE THAT THE TEST EQUIPMENT IS CORRECTLY INSTALLED BEFORE
_______
 YOU MEASURE THE BONDING VALUES.

 (1)
 Connect the test equipment at the applicable locations (Ref. TASK 20-28-00-869-002).

 (2)
 Measure the resistance value.

 (3)
 Make sure that the measured values are not higher than the maximum permitted values (Ref. TASK 20-28-00-869-002).

 (4)
 Remove the test equipment.

 


 5. Close-up________ 
R
 Subtask 20-28-00-942-095 
R  A. Close Access
R  (1) Make sure that the work area is clean and clear of tool(s) and other items. 


 TASK 20-28-00-720-008


R R  Check of the Electrical Bonding of the Different Components Installed on Composite Materials
 1. Reason for the Job__________________
 Self Explanatory
 2. Job Set-up Information______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
R R  No specific No specific  Megohmeter - 10 Megohms - 500 Volts - 1 mA (max.) Ohmmeter - 500 Kohms - 500 Volts - 1 mA (max.)
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R  20-28-00-869-002  Table of the Maximum Permitted Resistance Values 
3. Job Set-up__________
 Subtask 20-28-00-869-066 
R  A. Equipment 
R R  (1) Ohmmeter - 500 Kohms - 500 Volts - 1 mA (max.), with the related leads and prods. 
R R R (2) Megohmeter - 10 Megohms - 500 Volts - 1 mA (max.) with the related leads and prods. 


 4. Procedure
_________

 Subtask 20-28-00-420-086
 A. Measurement of the Electrical Resistance. CAUTION : MAKE SURE THAT YOU DO NOT CAUSE DAMAGE TO THE EQUIPMENT OR THE
_______
 STRUCTURE WHEN YOU USE SHARP-POINT PRODS.

 CAUTION : MAKE SURE THAT THE TEST EQUIPMENT IS CORRECTLY INSTALLED BEFORE
_______
 YOU MEASURE THE BONDING VALUES.

 (1)
 Connect the test equipment at the applicable locations (Ref. TASK 20-28-00-869-002).

 (2)
 Measure the resistance value.

 (3)
 Make sure that the measured values are not higher than the maximum permitted values (Ref. TASK 20-28-00-869-002).

 (4)
 Remove the test equipment.


 5. Close-up
________ Subtask 20-28-00-942-097
 A. Close Access
 (1) Make sure that the work area is clean and clear of tool(s) and other items.
 1EFF : ALL 1 20-28-00Page 523 1 1 Feb 01/03R 1 1 1CES 1

 TASK 20-28-00-720-010


 Check of the Electrical Bonding of External Composite Panels with a CORAS
 Resistivity-Continuity Test Set

 1.
 Reason for the Job

__________________
 Self Explanatory


 2.
 Job Set-up Information


______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE  QTY DESIGNATION
 -------------------------------------------------------------------------------
QB31B 1 RESISTIVITY - CONTINUITY TEST SET R QB31B1 1 RESISTIVITY - CONTINUITY TEST SET
 B. Referenced Information
 -------------------------------------------------------------------------------
 
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