Home>ASME standards>ASME NOG-1-2015 pdf download

ASME NOG-1-2015 pdf download

ASME NOG-1-2015 pdf download.Rules for Construction of Overhead and Gantry Cranes (Top Running Bridge, Multiple Girder).
3100 COATING SERVICE LEVELS The owner shall specify either coating service level I or II as defined below. (a) Coating Service Level I. For use in areas where coat- ing failure could adversely affect the operation of post- accident fluid systems and, thereby, impair safe shut- down. With few exceptions, coating service level I applies to coatings inside a nuclear power plant’s pri- mary containment. (b) Coating Service Level II. For use in areas where coating failure could impair, but not prevent, normal operating performance. The function of coating service level II coatings is to provide corrosion protection and decontaminability in those areas outside primary con- tainment subject to radiation exposure and radionuclide contamination. Coating service level II also applies to coatings in nonradiation areas. 3200 SPECIFIC REQUIREMENTS FOR COATING SERVICE LEVELS 3210 Requirements for Coating Service Level I (a) Coating requirements for coating service level I shall be in accordance with ASTM D5144. (b) In accordance with ASTM D5144, coating service level I requires a quality assurance program. (c) Inspection and testing of coatings for coating ser- vice level I shall be in accordance with ASTM D5144. Specific coating inspections shall be specified by the owner, dependent upon the coating system being used. See ASTM D5161 for selecting and specifying the appro- priate inspection requirements. 3220 Requirements for Coating Service Level II (a) Coating requirements for coating service level II shall be as specifiedbythe owner. The ownermayinvoke applicable sections of ASTM D5144. (b) Qualityassurancerequirementsforcoatingservice level II shall only apply as specified by the owner. (c) Inspection and testing requirements for coating service level II shall apply as specified by the owner. 3230 Additional Requirements Applicable to All Coatings Additional requirements for coatings and finishes are listed in (a) through (o) below. Further information for 12 coatings and finishes is provided in Nonmandatory Appendix A, para. A-3240. (a) If not specified by the owner, the type of coating will be determined by the manufacturer to meet the specified environmental conditions of service and coat- ing service level. Specifically, the selected coatings shall be suitable for any specified radiation, temperature, and chemical immersion or chemical spray environment. (b) Welding through coatings shall not be allowed unless the coating system is specifically designed and formulated as a weldable system and documentation can be provided by the coating manufacturer to attest to this capability. The use of these coatings shall be approved by the owner. (c) Surfaces exposed to the environment, but inacces- sible after assembly, such as wheel wells and hubs, shall be coated prior to assembly. (d) Coating of interior or enclosed surfaces of the equipment, such as inside a welded box section, is not required by this Standard. (e) Contact surfaces of friction-type joints to be joined by high-strength bolts shall not be coated with specified coating system except for organic or inorganic zinc coat- ing systems not prohibited by para. 1145. (f) Machined mating surfaces and other surfaces not normallyprotectedbythe specified coatingsystem, such as hooks, hook nuts, wheel treads, rails, gears, shafts, pinions, couplings, drum grooves, sheave grooves, and brake wheels, shall be protected by means of an appro- priate preservative for shipment and/or storage. The manufacturer shall specify which preservatives must be removed by the owner for proper operationofthe equip- ment. Other preservatives may be removed bythe owner after installation of the equipment. (g) Forced curingordryingofthe coatingsystemshall not be performed unless recommended by the coating manufacturer. (h) Fillers, sealants, and caulking compounds shall be compatible with the coating system. (i) Finished components, such as motors, brakes, gear reducers, limit switches, electrical dials and gauges, con- trol enclosures, brake rectifier cabinets, control masters, safety switches, auxiliary heaters, push-button stations, transformers, manual magnetic disconnects, light fix- tures, reactors, resistor banks, protective guards, cross- shaft bearing blocks, unitized hoists, interior of control cabinets, festoon trolley cable spacer systems cab interi- ors, and radio control equipment, may be furnished with  conventional coatings unless otherwise specified by the owner. (j) For coating service level I applications, the equip- ment manufacturer shall supply the estimated surface area of exposed parts provided with conventional coatings. (k) Nameplates and warning labels offactory finished components that are recoated shall be masked to pre- serve legibility.

Related PowerPoint Templates

Template Categories
Popular Tags