Substation Equipment Spare Parts’ Inventory Prediction Model Based on Remaining Useful Life

Table 1

Variables, notations, and types.

Variables	Notations	Types
Manufacturers		Text variable
Substation name		Text variable
Interval		Text variable
Device		Text variable
O&M shift^∗		Text variable
Temperature (°C)		Numeric variables
Humidity (hPa)		Numeric variables
Installation date		Time variables
Date of damage		Time variables
Design life/days		Numeric variables

O&M, operations and maintenance shift.