Determining the Optimal Order Quantity with Compound Erlang Demand under (T,Q) Policy

Table 1

Basic information of 53 types of electric power materials.

State grid code of spare parts	Class	Division	Section
500012723	Hardware	Mechanical hardware	Bolt	2	2137.77	0.47
500012771	Hardware	Mechanical hardware	Bolt	2	840.70	0.39
500012797	Hardware	Mechanical hardware	Bolt	2	352.31	0.06
500012801	Hardware	Mechanical hardware	Bolt	2	118.76	0.13
500014661	Installation	Wire	Aerial insulation wire	3	9.47	0.51
500014662	Installation	Wire	Aerial insulation wire	2	14.37	0.23
500014670	Installation	Wire	Aerial insulation wire	2	37.59	0.46
500014711	Installation	Wire	Aerial insulation wire	2	5.18	0.41
500014713	Installation	Wire	Aerial insulation wire	2	4.53	0.35
500014805	Installation	Cable	Cloth wire	2	10437.16	0.05
500016589	Installation	Cable	Control cable	2	1161.67	0.20
500016592	Installation	Cable	Control cable	2	1080.33	0.16
500017293	Installation	Insulator	Post porcelain insulator	2	254.76	0.33
500017320	Installation	Insulator	Strain insulator	2	279.17	0.19
500017324	Installation	Fitting	Shackle insulator	2	6474.62	0.42
500017325	Installation	Fitting	Shackle insulator	3	1849.46	0.52
500020609	Installation	Cable accessories	Splicing fitting—; GT-G	2	27.05	0.26
500020612	Installation	Cable accessories	Splicing fitting—; GT-G	2	3091.22	0.07
500020638	Installation	Cable accessories	Splicing fitting—; GTL	3	22.04	0.01
500021412	Installation	Cable accessories	35kV cable connector	2	6.64	0.19
500021803	Installation	Cable accessories	Cable terminals	2	79.97	0.24
500021830	Installation	Low voltage apparatus	Cable terminals	2	280.81	0.33
500021862	Installation	Low voltage apparatus	Cable terminals	2	1363.48	0.30
500021869	Installation	Surge arrester	Cable terminals	2	305.76	0.33
500022269	Low voltage apparatus	Traverse, earth wire	Low-tension fuse	2	218.86	0.19
500022271	Low voltage apparatus	Fitting	Low-tension fuse	2	2293.08	0.18
500027151	Primary equipment	High-pressure fuse fittings	AC surge arrester	2	210.94	0.43
500027464	Installation	High-tension fuse accessories	Aerial insulation traverse	2	5.05	0.26
500029690	Installation	High-tension fuse accessories	Guy wire fitting—wedge clamps	2	280.30	0.47
500032681	Spare part	High-tension fuse accessories	Fuse	2	85.64	0.31
500032682	Spare part	Iron fittings	Fuse	2	27.35	0.03
500032684	Spare part	Mechanical hardware	Fuse	2	151.88	0.47
500032687	Spare part	Cable accessories	Fuse	2	60.44	0.36
500035137	Installation	Mechanical hardware	Anchor rod	2	250.67	0.44
500051829	Hardware	Low voltage apparatus	Bolt	2	349.51	0.32
500053694	Installation	Low voltage apparatus	35kV cable termination	2	8.26	0.16
500058470	Hardware	Security burglary fire	Bolt	2	1547.98	0.30
500061526	Low voltage apparatus	Security burglary fire	Low-tension fuse accessories	2	131.57	0.22
500061564	Low voltage apparatus	Fitting	Low-tension fuse accessories	2	113.72	0.31
500061758	Supplementary equipment	Fitting	Anti-lighting device	2	211.26	0.25
500062282	Supplementary equipment	Traverse, earth wire	Anti-lighting device	2	163.65	0.18
500063419	Installation	Traverse, earth wire	Strain clamps—pre-twisted type	2	166.65	0.33
500064132	Installation	Iron fittings	Guy wire fittings—guy clips	3	1465.33	0.51
500065644	Installation	Mechanical hardware	Aerial insulation traverse	2	3.19	0.48
500065658	Installation	Mechanical hardware	Aerial insulation traverse	2	31.22	0.44
500066495	Installation	Fittings	Iron connection	2	2827.08	0.31
500067251	Hardware	Iron fittings	Bolt	2	352.50	0.19
500067292	Hardware	Iron fittings	Bolt	2	469.55	0.43
500067551	Installation	Iron fittings	Guy wire fittings—guy clips	2	581.01	0.27
500067567	Installation	Description of the class	Cable hold hoop	2	56.25	0.13
500067652	Installation	Mechanical hardware	Semicircular hold hoop	2	92.10	0.28
500067654	Installation	Mechanical hardware	Semicircular hold hoop	2	202.46	0.29
500016521	Installation	Mechanical hardware	Control cable	2	576.27	0.15