Seismic Vulnerability Assessment of Site-Vicinity Infrastructure for Supporting the Accident Management of a Nuclear Power Plant

Table 1

Failure modes and approximate failure probability for elements of low voltage distribution system in the considered region.

	Failure modes	Probability
Poles	Shear	Low
	Flexural	Medium
	Foundation failure (due to insufficient bearing capacity of loose Holocene alluvium and liquefaction)	High
Overhead lines	Break	Low
	Short-cut	Low
Mounted on poles equipment (transformers)	Anchorage/fitting failures	High