CAN/CSA-N285.6 Series-88 (R2000)

1. Scope N285.6.1 1.1 This Standard covers the requirements for the fabrication and properties of seamless zirconium alloy tubing suitable for use as the in-core portions of fuel channels of a CANDU reactor. N285.6.2 1.1 This Standard covers the requirements for the fabric ation and properties of seamless zirconium alloy tubing to be used in reactivity control rods. Generally, this Standard applies to tubing with a diameter to wall thickness ratio of less than 80:1. N285.6.3 1.1 This Standard establishes the requirements for seamless zirconium alloy tubing of nonuniform wall suitable for incorporation into injection nozzles located in moderator water in the core of a CANDU reactor. N285.6.4 1.1 This Standard establishes the requirements for the fabrication and properties of thin-walled zirconium alloy tubing used as calandria tubes and as guide tubes for reactivity control rods in a CANDU reactor. Generally, this specification applies to tubing with a diameter to wall thickness ratio greater than 80:1. N285.6.5 1.1 This Standard establishes the requirements for zirconium alloy wire used to form the spacers between the fuel channels and calandria tubes in a CANDU reactor. N285.6.6 1.1 This Standard covers a series of requirements for nondestructive examinations performed at various stages of manufacture of zirconium alloy components as detailed in this series of Standards. The requirements cover nondestructive examinations by visual, radiographic, liquid-penetrant, and ultrasonic techniques. The requirements detail applicability, requirements of the inspection, and acceptance standards. N285.6.7 1.1 This Standard provides the physical and mechanical property data to be used for design purposes for the zirconium alloy components defined in this series of Standards. N285.6.8 1.1 This Standard covers the technical requirements for martensitic stainless steel for components of a CANDU reactor, in particular the fuel-channel end fittings. N285.6.9 1.1 This Standard defines materials to CSA Standards that may be used for the supports of pressure-retaining items in CANDU nuclear power plants.