Individual:
http://rdf.iit.demokritos.gr/2014/iaeaSafetyGlossary/id391
Annotations (2)
-
nreo:canonicalLabel "maintenance" (en)
-
skos:definition "The organized activity, both administrative and technical, of keeping<br/>
'structures, systems and components' in good operating condition, including both <br/>preventive and corrective (or 'repair') aspects.<br/>
<i><b>corrective maintenance.</b></i> Actions that restore, by 'repair', overhaul or <br/>replacement, the capability of a failed 'structure, system or component' to <br/>function within 'acceptance criteria'.<br/>
Contrasted with 'preventive maintenance'.<br/>
<i><b>periodic maintenance.</b></i> Form of 'preventive maintenance' consisting of <br/>servicing, parts replacement, surveillance or testing at predetermined <br/>intervals of calendar time, operating time or number of cycles.<br/>
Also termed <i><b>time based maintenance</b></i>.<br/>
<i><b>planned maintenance.</b></i> Form of 'preventive maintenance' consisting of <br/>refurbishment or replacement that is scheduled and performed prior to <br/>unacceptable degradation of a' structure, system or component'.<br/>
<i><b>predictive maintenance.</b></i> Form of 'preventive maintenance' performed <br/>continuously or at intervals governed by observed condition to monitor, <br/>diagnose or trend a 'structure, system or component'’s 'condition indicators'; <br/>results indicate present and future functional ability or the nature of and <br/>schedule for 'planned maintenance'.<br/>
Also termed <i><b>condition based maintenance</b></i>.<br/>
<i><b>preventive maintenance.</b></i> Actions that detect, preclude or mitigate <br/>degradation of a functional 'structure, system or component' to sustain or <br/>extend its useful life by controlling degradation and 'failures' to an <br/>acceptable level.<br/>
'Preventive maintenance' may be 'periodic maintenance', 'planned maintenance' or <br/>'predictive maintenance'.<br/>Contrasted with 'corrective maintenance'.<br/>
<i><b>reliability centred maintenance (RCM).</b></i> A 'process' for specifying <br/>applicable 'preventive maintenance' requirements for <i>safety related systems<br/></i>and equipment in order to prevent potential 'failures' or to control the <br/>'failure modes' optimally. 'RCM' utilizes a decision 'logic' tree to identify the <br/>'maintenance' requirements according to the 'safety' consequences and <br/>operational consequences of each 'failure' and the degradation mechanism <br/>responsible for the 'failures'.<br/>" (en)
Types (1)
Usage (29)