Title: Engineering Product Specification Telecom Circuit Protector | Revision: L |
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Printed on: 7/14/2003 | Sheet 17 | of | 18 |
13.5 Thermal Shock Test:
13.5.1Samples are placed in a temperature chamber and subjected to 200
1)Hold
2)Transfer to 125°C+2°C within 0.5 minutes
3)Hold 125°C±2°C for 30±5 minutes
4)Transfer to
5)Repeat cycle 200 times
13.5.2At completion of 200 cycles, resistance readings taken after temperature stabilization (25°C±5°C for 15 minutes minimum to 24 hours maximum)
13.5.3Samples divided into two equal lots of twenty
13.5.4One set is tested to the
13.5.5The other set is subjected to the destructive Current Overload Test.
13.6Maximum Current Carry Test
13.6.1Performed after the
13.6.2At the completion of the 100% Current Carry Test, the current is increased by 10% of the current rating of the fuse. Increase occurs every 15 minutes until the fuse opens. Temperature is monitored constantly.
13.7Case Resistance Test
13.8Resistance to Dissolution of Metallization Test ANSI
13.9Mechanical Shock Test
13.9.1Test boards mounted to a shock test fixture, which in turn was mounted to the table of the shock machine.
13.9.2Shock machine calibrated for the required shock pulse.
13.9.3Samples subjected to eighteen impacts, three impacts in each of the three mutually
perpendicular axis. Each shock pulse approximated a
13.9.4High frequency vibration test is performed after the mechanical shock test is completed.
After the
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