Long-Term Maintenance Scheduling of Smart Distribution System through a PSO-TS Algorithm

Table 2

Maintenance data of different deterioration mechanism types and equipment.

Equipment	Duration (h)			Labour (p-h)			Materials cost ($)
	Tp1	Tp2	Tp3	Tp1	Tp2	Tp3	Tp1	Tp2	Tp3
Preventive maintenance
Line (per km)	2	4	6	3	10	20	12.5	50	125
Transformer	4	8	10	5	15	33	30	70	300
Breaker	3	6	9	4	12	24	25	60	250
Corrective maintenance
Line (per km)	7	10	14	8	15	30	25	100	275
Transformer	10	15	20	12	25	50	60	190	600
Breaker	9	13	18	10	20	40	50	150	500