GMKOREA EDS-T-5711-2008 TEST STANDARD OF SLOW BLOW FUSE.pdf
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1、GM DAEWOO Auto & Technology EDS Engineering, GM DAEWOO Auto & Technology Standards TEST STANDARD OF SLOW BLOW FUSE Do Not Use on New Programs. Being Replaced by GMW3172 EDS-T-5711 ISSUED DATE: 1999. 08. 20 REVISED DATE: 2008. 10. 21 VERSION: 3 (Superceded) EDS-T-5711TEST STANDARD OF SLOW BLOW FUSE P
2、AGE: 1/10 ISSUED DATE: 1999. 08. 20 REVISED DATE: 2008. 10. 21 VERSION: 3 GM DAEWOO Auto & Technology Note: This standard may be applied only for current project (incl. T255 Program). It is Superceded for all future projects and replaced by GMW3172. 1. PURPOSE This standard aims at specifying the pr
3、ocedures of testing whether slow blow tubes used for vehicles manufactured by GMDAT are appropriate. 2. SCOPE This standard applies to test for checking appropriateness of slow blow tubes at new car development or at engineering change of the fuse for production vehicles. 3. TEST EQUIPMENT 3.1. Powe
4、r supply - DC 24V/200A 3.2. Oscilloscope 3.3. Recorder 3.4. Electric load 3.5. Digital multimeter 3.6. Tension tester 3.7. Thermostatic chamber 3.8. Composite environment chamber 3.9. Slide calipers, project 3.10. Vibration equipment 4. TEST ITEM 4.1. Basic performance test 4.1.1. Appearance inspect
5、ion (1) Test method: Inspect visually or by feel under luminous intensity of at least 300LX (2) Evaluation standard: The sample shall show no signs of flaw, breakage, burr, rust, etc. that mars appearance and functions. EDS-T-5711TEST STANDARD OF SLOW BLOW FUSE PAGE: 2/10 ISSUED DATE: 1999. 08. 20 R
6、EVISED DATE: 2008. 10. 21 VERSION: 3 GM DAEWOO Auto & Technology 4.1.2. Fusing part visibility test (1) Test method: Visually inspect from above the fuse upper surface. (2) Evaluation standard: The element fusing part shall be clearly seen through the cover. 4.1.3. Terminal insertion/removal force t
7、est (1) Test method 1) While applying a force perpendicularly to each terminal, insert/remove the fuse into/from the measuring instrument. 2) Apply the force at a constant speed of 50 150mm/min. (2) Evaluation standard 1) Insertion force of the () terminal for connection into the mating (+) terminal
8、 shall be 4.5Kgf. 2) The detachment force shall be 1 2.5 Kgf. 4.1.4. Cover detachment strength test (1) Test method 1) With the housing fixed, apply a tensile force to the cover. 2) Apply the force at a constant speed of 50 150mm/min (2) Evaluation standard: The tensile detachment strength of the co
9、ver from the housing shall be a minimum of 1Kgf. 4.1.5. Lens breaking strength test (1) Test method 1) With the housing fixed, apply a perpendicular force to each terminal from below. 2) Apply the force at a constant speed of 50 150mm/min (2) Evaluation standard: The breaking strength of the element
10、 and housing lens shall be a minimum of 6Kgf. 4.1.6. Impact strength test (1) Test method: Drop the sample from a height of 1m onto the concrete floor. (2) Evaluation standard: The sample shall show no signs of bending of the terminal and damage or breakage of the housing that mars functions. 4.1.7.
11、 Breaking strength test (1) Test method: Apply a compressive force to the upper and lower ends of the fuse. (2) Evaluation standard: The insertion breaking strength of the fuse shall be a minimum of 20Kgf. 4.1.8. Heat resistance test (1) Test method: Expose the sample to the ambient temperature of 1
12、20 for 100 hours. (2) Evaluation standard: The sample shall show no signs of defects, such as corrosion, breakage and deformation, which mar functions. 4.1.9. Cold resistance test (1) Test method: Expose the sample to the ambient temperature of -40 for 24 hours. EDS-T-5711TEST STANDARD OF SLOW BLOW
13、FUSE PAGE: 3/10 ISSUED DATE: 1999. 08. 20 REVISED DATE: 2008. 10. 21 VERSION: 3 GM DAEWOO Auto & Technology (2) Evaluation standard: The sample shall show no signs of defects, such as corrosion, breakage and deformation, which mar functions. 4.1.10. Oil resistance test (1) Test method: After applyin
14、g engine oil and antifreeze to the sample, expose it to the ambient temperature of 120 for 24 hours. (2) Evaluation standard: The sample shall show no signs of defects, such as corrosion, breakage and deformation, which mar functions. 4.1.11. Indication inspection (1) Test method: Inspect visually u
15、nder luminous intensity of at least 300LX. (2) Evaluation standard: Indication of the rated current and reading shall be clear to avoid misunderstanding. 4.2. Electric performance, environmental, durability test 4.2.1. Voltage drop (1) Test method: After having the current equivalent to 50%, 70%, an
16、d 100% of the rated current flow through the fuse for 15minutes, measure the voltage drop between fuse terminals at the measuring points shown in the attached sketch #2. (2) Evaluation standard Transmission rate Maximum voltage drop 50% 100mV 70% 150mV 100% 250mV 4.2.2. Fusing performance test (1) T
17、est method: By having the rated current flow through the fuse, measure the time from start of flow to fusing. Measure the insulation resistance after fusing 1 minute after fusing with a 500V insulation resistance meter. (2) Evaluation standard 1) When the current equivalent to 110% of the rated curr
18、ent flows through it, the fuse shall not blow within 100 hours. 2) When the current equivalent to 135% of the rated current flows through it, the fuse shall blow within 60 1800 seconds. 3) When the current equivalent to 200% of the rated current flows through it, the fuse shall blow within 2 60 seco
19、nds. 4) When the current equivalent to 355% of the rated current flows through it, the fuse shall blow within 0.2 7 seconds. 5) When the current equivalent to 600% of the rated current flows through it, the fuse shall blow within 0.04 1 second. 6) After fusing of the fuse according to 2) 5), the ins
20、ulation resistance between terminals shall not be smaller EDS-T-5711TEST STANDARD OF SLOW BLOW FUSE PAGE: 4/10 ISSUED DATE: 1999. 08. 20 REVISED DATE: 2008. 10. 21 VERSION: 3 GM DAEWOO Auto & Technology than 1.0 . Also, the housing shall not be damaged at fusing. 4.2.3. Temperature rise (1) Test met
21、hod: After having the current equivalent to 50% and 70% of the rated current flow through the fuse for 20 minutes, measure the temperature rise at the measuring point of fuse terminals shown in the attached sketch #2. (2) Evaluation standard Transmission rate Temperature rise 50% 40 70% 60 4.2.4. Vi
22、bration durability performance (1) Test method: After placing the fuse onto the vibration test stand and fixing the advancement range to 1.5mm, apply vibration in 3 mutually perpendicular directions for 2 hours respectively to make a total of 6 hours by changing the frequency between 10Hz55Hz evenly
23、 with sweeping time of 1 minute. (2) Evaluation standard: During and after test, the sample shall show no signs of abnormalities, such as loosening and breakage, and after test meet the requirements in 4.2.2. 4.2.5. Current ON/OFF durability performance test (1) Test method: With the current equival
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