This technical report applies only to circuit-breakers with their supporting structures which are rigidly connected with the ground, and does not cover the seismic qualification of circuit-breakers in metal enclosed switchgear.
ICS
29.130.10 High. Including enclosed switchgear and controlgear / Высоковольтное оборудование, коммутационная аппаратура и аппаратура управления. Включая закрытую коммутационную аппаратуру и аппаратуру управления
