Standard No.:	GB/T 17680.1-2008
English Name:	Criteria for emergency planning and preparedness for nuclear power plants - Part 1: The dividing of emergency planning zone
Chinese Name:	核电厂应急计划与准备准则 第1部分：应急计划区的划分
Chinese Classification:	F77    Nuclear radiation accident emergency and treatment
Professional Classification:	GB    National Standard
ICS Classification:	27.120.20 27.120.20    Nuclear power plants. Safety 27.120.20
Issued by:	AQSIQ; SAC
Issued on:	2008-7-2
Implemented on:	2009-4-1
Status:	valid
Superseding:	GB/T 17680.1-1999 Criteria for emergency planning and preparedness for nuclear power plants The dividing of emergency planning zone
Language:	English
File Format:	PDF
Word Count:	3500 words
Price(USD):	80.0
Delivery:	via email in 1 business day

Foreword GB/T 17680 consists of the following 12 parts under the general title Criteria for emergency planning and preparedness for nuclear power plants. ——Part 1: The dividing of emergency planning zone; ——Part 2: Off-site emergency functions and organization; ——Part 3: Functional and physical characteristics of off-site emergency facilities; ——Part 4: The off-site emergency planning and implementing procedures; ——Part 5: Maintenance of offsite emergency response capabilities; ——Part 6: On-site emergency response functions and organizations; ——Part 7: Function and physical characteristics for on-site emergency facilities; ——Part 8: On-site emergency planning and implementing procedures; ——Part 9: Maintenance of on-site emergency response capacity; ——Part 10: Criteria for emergency radiological field monitoring, sampling and analysis conducted by nuclear power plant operating organizations; ——Part 11: Criteria for the conduct of offsite radiological assessment for emergency response; ——Part 12: Planning development conduct and evaluation of nuclear emergency drills and exercises; This is Part 1 of GB/T 17680. This part adopts the international general safety criteria for determining the emergency planning zone of nuclear power plants. It also refers to the criteria for dividing the emergency planning zone of nuclear power plants in the United States, Canada, France, and the United Kingdom. This part replaces GB/T 17680.1-1999 Criteria for emergency planning and preparedness for nuclear power plants - The dividing of emergency planning zone. This revision mainly involves some editorial changes. The following main changes have been made with respect to GB/T 17680.1-1999: ——The "Foreword" is more complete, clarifying that this part provides the technical basis for dividing the emergency planning zones for nuclear power plants; ——The reference was revised to the current Chinese national standard GB 18871; ——In 4.4 of Clause 4, the requirement that it allows to take into account only releases of radioactive materials to the atmosphere, but not to water, in determining the area of the emergency planning zone is deleted; ——In 6.1.1, the requirement that the thermal power of the unit reactor shall be considered when determining the area of the plume emergency planning zone is added. This part was proposed by China National Nuclear Corporation. This part is under the jurisdiction of National Technical Committee on Nuclear Energy of Standardization Administration of China. Drafting organizations of this part: Institute for Standardization of Nuclear Industry, Guangdong Nuclear Power Joint Venture Co., Ltd., Safety and quality department of China National Nuclear Corporation. Chief drafter of this part: Zhuo Fengguan. The previous edition of this part is as follows: ——GB/T 17680.1-1999. Criteria for emergency planning and preparedness for nuclear power plants - Part 1: The dividing of emergency planning zone 1 Scope This part of GB/T 17680 specifies the general criteria for dividing of emergency plan zone for nuclear power plants and recommends the area of emergency plan zone for PWR nuclear power plants. This part is applicable to the dividing of emergency plan zone of pressurized water reactor nuclear power plants; this part can be referred to in the dividing of emergency plan area for other reactor-type nuclear power plants. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of GB/T 17680. For dated references, subsequent amendments (excluding corrections) to, or revisions of, any of these publications do not apply to this part. However parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. GB 18871 Basic standards for protection against ionizing radiation and for the safety of radiation sources 3 Terms and definitions For the purposes of this part of GB/T 17680, the following terms and definitions apply. 3.1 emergency planning zone zone which is established in advance around a nuclear power plant and for which an emergency plan has been developed and emergency preparedness has been made, so as to take timely and effective protective actions to protect the public in the event of an accident at the nuclear power plant   3.2 plume emergency planning zone emergency planning zone established for plume exposure pathways (such as external exposure by plume immersion, internal exposure by inhalation, and external exposure by ground deposition). This kind of emergency planning zone can be divided into inner and outer zones. In the inner zone, emergency protective actions such as concealment, take stable iodine and emergency evacuation can be taken immediately in the event of an emergency 3.3 ingestion emergency planning zone emergency planning zone established for ingestion exposure pathways (internal exposure from ingestion of contaminated food and water). However, food and water control is usually not an "emergency" protective measure. The extent to which such an emergency response can be implemented is generally allowed to be determined based on monitoring and sampling analyses carried out after an incident release. These factors shall be fully considered when considering the area of the ingestion emergency planning zone and developing related emergency measures at the emergency planning stage 3.4 design basis accident accident condition against which specific measures have been taken in the design of the nuclear power plant according to the determined design criteria. Under such accident condition, the release of radioactive materials can be limited to an acceptable limit by properly designed plant facilities 3.5 severe accident condition of a nuclear power plant that is more serious than the design basis accident, including conditions that cause severe reactor core damage. In such accident conditions, the release of radioactive materials may be out of control and lead to severe radiological consequences beyond acceptable limits. Such accidents are sometimes referred to as "beyond-design-basis accidents"

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Accidents to be considered 5 General methods and safety criteria for determining the area of emergency planning zone 6 Determination of the area coverage and physical boundary of the emergency planning zone