Example
１）Expected life of equipment (required conditions)
Ａ︓10 years with 24h operation
Ｂ︓10 years with 8h operation a day
２）Ambient temperature of capacitor
65℃ (Check ・ no heat generated part on reverse or around) 
・Capacitor selection
case 1)
Ａ︓For 10 years with 24h operation
L = 24（hour）× 365（day）× 10（year）
= 87600（hour）→ Working hours for 10 years
Because the value is larger than 32000 hours, the 105℃ 2000h product does not satisfy the expected life, and the ambient temperature should be lowed.
Case 2)
Ｂ︓For 10 years with 8h operation a day
L = 8（hour）× 365（day）× 10（year）
= 29200（hour）→ Working hours for 10 years
Because the value is smaller than 32000 hours, the105℃ 2000h product can be used.
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