Section
1 Requirements for Condition Monitoring and Condition-Based
Maintenance Systems
1.1 Scope
1.1.1 The requirements of this Chapter are applicable to condition monitoring and
condition-based maintenance systems which:
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provide control,
alarm or safety functions for essential machinery and equipment (see
Pt 6, Ch 1, 2.1 General 2.1.1)
in accordance with manufacturers recommendations; or
-
provide machinery
condition related information as part of a machinery planned maintenance
scheme for use as an alternative to machinery and equipment surveys
required by the Regulations (see
Pt 1, Ch 3 Periodical Survey Regulations) in accordance with LR’s ShipRight procedures.
1.1.2 Condition
monitoring systems which deviate from the requirements of this Section
but provide an equivalent level of performance may be submitted to
LR for consideration.
1.1.3 The requirements of this Section and LR’s ShipRight Procedures for
Machinery Planned Maintenance and Condition Monitoring are to be applied to
condition monitoring systems where the assignment of the ShipRight(MPMS(CM))
descriptive note is requested.
1.1.4 The requirements of this Section and LR’s ShipRight Procedures for
Machinery Planned Maintenance and Condition Monitoring are to be applied to
machinery condition-based maintenance systems that make use of predictive techniques
where the assignment of the ShipRight(MPMS(PT)) descriptive note is requested in
addition to the MPMS(CM)) descriptive note.
1.2 Plans and particulars
1.2.2 In
addition to information required by Pt 5, Ch 21, 1.2 Plans and particulars 1.2.1, the documents listed in the ShipRight Procedures for
Machinery Planned Maintenance and Condition Monitoring are
to be submitted to LR for consideration.
1.3 General requirements for condition monitoring systems
1.3.1 Condition monitoring equipment is to be capable of providing the service
for which it is intended and is to satisfy the relevant requirements for condition
monitoring equipment in LR’s Type Approval System.
1.3.2 Condition monitoring equipment is to be suitable for the environment in
which it is intended to operate and is to satisfy the relevant requirements for
environmental testing in LR’s Type Approval System, Test specification No.1.
1.3.6 Portable condition monitoring equipment is to be maintained and calibrated
in accordance with a recognised National or International Standard to ensure the
accuracy of the readings obtained. The standard is to include the issue of calibration
certificates by a recognised test house in accordance with a recognised National or
International Standard for instrument calibration. Copies of calibration certificates
are to be retained on board and referenced on all condition monitoring reports submitted
as part of the onboard condition monitoring program. Portable equipment used in
hazardous areas is to be of a safe type suitable for use in the appropriate hazardous
zone.
1.3.7 Measuring points are to be clearly identified in the submission and
proposals to ensure repeatability of measurements are to be included.
1.3.8 The condition monitoring equipment is, as far as is practicable, to be
located and installed such that it is accessible for maintenance and survey.
1.3.9 The condition monitoring equipment is to be installed in accordance with the
manufacturer’s instructions and to the satisfaction of the LR Surveyor.
1.3.10 Boilers and pressure vessels are not eligible for reduced survey intervention based on
condition monitoring.
1.4 Requirements for systems providing control, alarm and safety
functions
1.5 Requirements for systems providing
machinery condition related information as part of condition-based maintenance systems
1.5.1 In addition to the requirements of Pt 5, Ch 21, 1.3 General requirements for condition monitoring systems,
condition monitoring equipment which provides condition related information as part of
a machinery planned maintenance scheme for use as an alternative to machinery and
equipment surveys required by the Regulations is also to satisfy the relevant
requirements of LR’s ShipRight Procedures for Machinery Planned Maintenance and
Condition Monitoring.
1.5.2 Where condition monitoring data is used as part of a condition-based
maintenance system, persons interpreting data and making diagnostic decisions are to be
suitably competent, in accordance with ISO 18436 or an equivalent recognised National
Standard. Evidence of competence, including training certificates of those providing
analysis and data interpretation, are to be submitted and held on board. These
certificates are to be made available to LR on request for audit and survey
purposes.
1.5.3 The
condition monitoring equipment is, as far as is practicable, to be
located and installed such that it is accessible for maintenance and
survey.
1.5.4 Limiting parameters (alarms and warnings) are to be based on the manufacturer’s
guidelines, or a recognised International Standard.
1.6 Requirements for maintenance systems using predictive techniques
1.6.1 Machinery maintenance systems which make use of predictive techniques, when being
used as an alternative to machinery and equipment surveys required by the
Regulations, are also to satisfy the requirements of this Section and the relevant
requirements of LR’s ShipRight Procedures for Machinery Planned Maintenance and
Condition Monitoring.
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