TSC0500G_6_P_1
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Prepared and Written by: Electronics Laboratory Electronics Engineering Div. INOTES: The recipient of this standard shall undertake the following confidentiality obligations upon the receipt of this standard. l The recipient shall discard by shredding or fire, or return to Toyota Motor Corporation if appropriate, the documents contained in this standardwhen they are no longer necessary due to the termination of the work concerned or the revision of current version of this standard. l This standard and the technical information related thereto are owned by and under sole control of Toyota Motor Corporation. They shall not bedisclosed in whole nor in part to any third party without prior written consent of Toyota Motor Corporation. Engineering Administration Div.© TOYOTA MOTOR CORPORATIONEstablished/ 6 Revised:Aug.2000
1 / 13CONFIDENTIAL DO NOT REPRODUCEC1TSC0500GTEST METHOD FOR BURNOUT RESISTANCE OF ELECTRIC EQUIPMENTTOYOTA ENGINEERING STANDARD
1. ScopeThis standard covers the test method for burnout resistance of electric equipmentother than electric wiring. 2. Test Item and Tested Parts (1) Overcurrent test I: electronic component (ECU), switch, relay, connector,noise suppression filter, current limitation register, etc. (2) Overcurrent test II: electronic component (ECU), relay etc. (3) Locking test: electronic component (ECU), motor, solenoid, pump, cigarettelighter, etc. (4) Voltage resistance test: switch, relay, connector, etc. As for electroniccomponents (ECU), the standards concerned shall be applied. 3. Test MethodAs a rule, new samples and connecting electric wire (including connectors) shallbe used for each test. 3.1 Overcurrent Test I3.1.1 PurposeThe purpose is to check for damage to components shown in Section 2 before circuitprotection devices (e.g., fuse, bimetal, PTC) work. 3.1.2 PreparationsPreparations shall be made as follows: (1) Power source Constant-voltage and constant-current source:0 to 35 V, 0 to 600 A minimum (2) Connecting electric wire Size and type shall be identical to those of wires used in actual vehicles,and the length between sample and power source shall be 1.5 m or longer. (3) Sample installation Direction of installation and peripheral conditions shall conform to thoseof an actual vehicle. In the case where the heat capacity of the peripheralarea produces some effect on heat radiation of sample, special attention isrequired. Wiring connector shall be held horizontally.
Established/ 6
Revised:Aug.20002 / 13NOTES: The recipient of this standard shall undertake the following confidentiality obligations upon the receipt of thisstandard.lThe recipient shall discard by shredding or fire, or return to Toyota Motor Corporation if appropriate, the documentscontained in this standard when they are no longer necessary due to the termination of the work concerned or therevision of current version of this standard.lThis standard and the technical information related thereto are owned by and under sole control of Toyota Motor
Corporation. They shall not be disclosed in whole nor in part to any third party without prior written consent of Toyota
Motor Corporation.TOYOTA ENGINEERING STANDARDCONFIDENTIAL DO NOT REPRODUCETSC0500G 3.1.3 Test ConditionsTest shall be conducted under the following conditions. (1) Power source open voltage 14.8 V (for 12 V type) 29.0 V (for 24 V type) (2) Atmosphere Ordinary temperature, ordinary humidity (defined as 20 , and 65
Established/ 6 Revised:Aug.20003 / 13NOTES: The recipient of this standard shall undertake the following confidentiality obligations upon the receipt of thisstandard.lThe recipient shall discard by shredding or fire, or return to Toyota Motor Corporation if appropriate, the documentscontained in this standard when they are no longer necessary due to the termination of the work concerned or therevision of current version of this standard.lThis standard and the technical information related thereto are owned by and under sole control of Toyota MotorCorporation. They shall not be disclosed in whole nor in part to any third party without prior written consent of ToyotaMotor Corporation.TOYOTA ENGINEERING STANDARDCONFIDENTIAL DO NOT REPRODUCETSC0500G Table 2 Conditions of Electric Current When Blade Fuse(Auto Fuse)Is Used for Circuit ProtectionCapacity (A)No.Value of current (A)Time (sec)15.5360026.81237.535410.0118.33600210.19311.327.5415.01111.03600213.526315.0310420.01116.53600220.330322.5415430.01122.03600227.060330.0520440.01127.53600233.8100337.51025450.01133.03600240.590345.01330460.01 Table 3 Conditions of Electric Current When A1-II Type M-Fuse Is Used for Circuit ProtectionCapacity (A)No.Value of current (A)Time (sec)140.5300245.060360.07490.0130
