PLANT WALKDOWNS AND SEISMIC SAFETY EVALUATION OF TEMELÍN NPP (CZECH REPUBLIC)
Rizzo Associates Czech specialists perform the on-demand plant seismic walkdowns after installation of new and/or modified equipment as well as the seismic safety evaluation on Temelín NPP, Czech Republic. These services are provided on-demand to several clients – the utility suppliers, e.g. I&C Energo a.s., NUVIA a.s., ŠKODA JS a.s., ENERGOSERVICE CZ s.r.o., ELTODO, a.s., ČEZ ENERGOSERVIS spol. s r.o. and more.
Rizzo Associates Czech specialists perform the on-demand plant seismic walkdowns after installation of new and/or modified equipment as well as the seismic safety evaluation on Temelín NPP, Czech Republic. These services are provided on-demand to several clients – the utility suppliers, e.g. I&C Energo a.s., NUVIA a.s., ŠKODA JS a.s., ENERGOSERVICE CZ s.r.o., ELTODO, a.s., ČEZ ENERGOSERVIS spol. s r.o. and more.
The individual activities within the project were as follows:
- Evaluation of seismic adequacy of realized upgrades in existing electrical cabinets of Seismic Category 1a.
- Evaluation of seismic adequacy of newly installed cables including the steel cable supporting structures.
- Evaluation of seismic adequacy of relocated junction, measuring and transition boxes and their connected cables.
- Anchorage of new switchgears for Diesel Generator Station lighting, of new lighting appliances including the connected cables.
- Evaluation of seismic adequacy as well as of static strength of newly installed pipe branches.
- Anchorage of connection boxes and new installation of load sensors for main hoists of the unit’s polar crane.
- Evaluation of seismic adequacy of new aerosol and iodine samplers.
- Evaluation of seismic adequacy of anchorage of new pump motors.
The total project level of effort was 2 500 man-hours.
All activities in the framework of the project were performed in accordance with the company’s quality policy. The seismic evaluations are performed using the indirect method GIP-VVER, the engineering judgment as well as by seismic calculations. At the same time, as the acceptance criteria, following standards were used: ČSN, IEEE, IEC, ASCE, NTD A.S.I., ETAG, EUROCODE 3, ASME BPVC and further relevant normative and technical documentation.