This code is applicable to the anti-seismic design, shock insulation, energy dissipation and shock absorption design for the electrical equipments below 220kV in the petrochemical engineering enterprises at the district where the earthquake protection intensity is 6~9 grade. As for the electrical equipment at districts where the earthquake protection intensity is larger than grade 9, its anti-seismic design shall be executed according to special provisions.
Note: This code generally omits such words "seismic fortification intensity,” that “seismic fortification intensity is grade 6, 7, 8, 9" shall be expressed as “grade 6, 7, 8, and 9" for short.
Foreword I
1 Scope
2 Normative references
3 Main symbols
4 General provisions
5 Basic requirements on anti-seismic design
6 Location and arrangement
7 Seismic protection calculations
7.1 Calculation for the earthquake effect of ground-based device
7.2 Calculation for the earthquake effect of floor-based device
7.3 Power transformers
7.4 Triphase vertically-arranged dry-type reactor
8 Earthquake counter measures in erection design
8.1 Power transformers
8.2 Electrotechnical porcelain equipments as oil-minimum breaker, arrester, isolating switch, stick insulator, voltage (current) transformer, and housing
8.3 Power capacitor and accumulator
8.4 High-tension switch cabinet, low-volatile switchboard, control protective screen, direct current panel, uninterrupted power supply equipment (UPS) and switch box
Appendix A (Normative) Shock Absorption Measures
Explanation of Wording in this code
