Endurance Tester For Electrical Lab Training Description and Specifications for Lab Tenders
Endurance Tester For Electrical Lab Training.
Endurance Tester - For Electrical Lab Training
The ability of an electric iron to give a sufficiently long working
life is determined by supporting the iron under test on three metallic
legs over a metal plate, pressing a thermocouple junction at the
mid-point of its sole plate, and operating it at 1.15 times its rated
input for 200 operating hours in cycles consisting of 11 hours On period
and 1 hour Off period. The average temperature of the sole plate during
this period is maintained at about 200°C for thermostatically
controlled irons and between 205°C and 260°C for ordinary irons, the
latter by appropriate cooling if necessary. At the end of the above test
period, the iron is examined for its electric strength and exposure of
any live parts caused by breakage or distortion of the enclosure.
The Endurance Tester for
electric irons consists of a control panel to provide single-phase
supply at 1.15 times the rated input to the iron under test in cycles of
11 hour On period and 1 hour Off period, and a suitable support for
placing the iron under test on during this period.