The IEC61850 standard and the existing bus protection data model are limited in the definition of data-model about dead-zone protection and charge protection for bus-tie. The paper analyzes the dead-zone protection and charge protection for bus-tie,and the data of input,output and setting based on the latest issued technical specifications intelligent substation. The data models of dead-zone protection and charge protection of bus-tie are developed for PCS915 bus protection. It improves the logic node modeling of bus protection and can provide useful information for the protection data-model configuration of intelligent substations.