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Vertical component of seismic acceleration

Vertical component of seismic acceleration

Vertical component of seismic acceleration

(OP)
Hi!
The local utility's engineering standard for power transformers states that the vertical component of a seismic acceleration be combined with one horizontal component (pretty obvious) Is this vertical component either upwards OR downwards? Is the resultant always further combined with the dead weight?
Thanks!

RE: Vertical component of seismic acceleration

yes - both up and down

yes - combined with dead weight in conformance with the particular load combination.

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