BS DD CEN/TS 1591-4-2007
法兰及其连接件.垫圈的圆形法兰连接件用设计原则.服从压力设备指令、符合设备螺栓接头装配要求的人员的资格鉴定

Flanges and their joints - Design rules for gasketed circular flange connections - Qualification of personnel competency in the assembly of bolted joints fitted to equipment subject to the Pressure Equipment Directive


 

 

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标准号
BS DD CEN/TS 1591-4-2007
发布日期
2007年09月28日
实施日期
2007年09月28日
废止日期
2013-08-31
中国标准分类号
J15
国际标准分类号
23.040.60
发布单位
英国标准学会
代替标准
BS EN 1591-4-2013
适用范围
1.1 General This European Technical Specification establishes a process for training and competency assessment of personnel who disassemble, assemble and tighten bolted joints such as fitted to equipment subject to the Pressure Equipment Directive 97/23/EC (PED), in the content of this Technical Specification named "PED". 1.2 Requirement for competency Training and competence, experience and knowledge are often confused with each other. Training is no guarantor of competence, nor is experience a guarantor of knowledge and understanding. Training, experience, and assessment of knowledge are all required to achieve competence. Design codes for mechanical joints (see for example EN 1591-1 or CEN/TS 1591-3) increasingly require controlled bolt tightening in order to meet the specified bolt load tolerances. The intent of this Technical Specification is to ensure personnel are competent to assemble and tighten bolted joints using the design bolt load and documented work instructions, thereby establishing a joint capable of maintaining a leak-free status throughout its’ service life. Competency in the analysis of joint failure is not required beyond use of knowledge gained during training. A correctly assembled and tightened joint that fails in service requires specialist knowledge and is out with the scope of this Technical Specification. 1.3 Validity This Technical Specification is applicable for bolted joints included on mechanical equipment subject to the PED, or any joint where failure would endanger personnel, plant or the environment. Such joints may or may not be fitted with a gasket. The validity includes all bolting arrangements, both circular and non-circular, and fluids (gas or liquid) with the exception of: ? joints having less than 4 bolts, or bolt diameters less than M16; ? potable or fire water, sewage systems. This Specification excludes: ? craft personnel who are trained, examined and verified as competent in their craft training or normal course of work to assemble bolted joints, such as in the manufacture of equipment; ? professional persons, who by their professional training and experience and contemporary practices are regularly concerned with bolted joints and their assembly. 1.4 Quality management system Manufacturers or operators need to develop and include a procedural framework within their quality management system to meet the requirements of this specification. Such a framework needs to address: ? identification of personnel requiring training; ? identification of a competent trainer or training provider, e.g. “Qualified Person for Pressure”; ? evaluation of the effectiveness of the training. For examples, refer to EN ISO 9001:2000, 6.2.2.

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