x Scale, excessive sludge deposits and dissolved solids which can quickly build up in a boiler through inadequate blowdown or water treatment regimes. These can cause boiler overheating or water carry-over which can ultimately cause boiler or system failure; x Faulty combustion controls which can allow the uncontrolled presence of fuel, air and an ignition source, which can result in fires or explosions.
The tests and their frequency shall be based upon: x Risk assessment of the plant and boiler system; x Manufacturers ’ or modifiers ’ instructions; and x The controls and manning levels.
A record of such tests shall be maintained to keep an audit trail of the boiler operation. Examples of daily and weekly boiler log sheet contents are given in Appendix 4. Examples of the type of records and documents that shall be kept and made available for scrutiny include: x Risk assessment; x Boiler log book; x Water treatment test records; x Combustion analysis records; x Manufacturer’s records and instructions; x Standard Operating Procedures; x Emergency Procedures; x Written Scheme of Examination (WSE); x Examination reports; x Record of periodic tests (e.g. Non Destructive Testing (NDT), Hydraulic test); The use of loose-leaf log books is not recommended. Paper logs shall be securely bound, while electronic logs must comply with the requirements of BS 10008:2014: Evidential weight and legal admissibility of electronic information. Specification. Careful consideration of where logbooks are stored is required. While it is useful for information flow between operators to keep the current logbook in the boiler house, there is a risk that the log itself could be lost in the event of a catastrophic incident. For that reason, only the current log should be stored near the boiler. Verified copies and older logbooks should be stored away from the boiler house. Logbook entries shall be reviewed regularly by a senior manager within the organisation; this may be a useful time to make appropriate copies for remote storage and prompt a review of the procedures and risk assessment. x Certificates of thorough examination; x Records of servicing & modifications; x Maintenance of controls; x Training records for boiler operators, supervisors and managers; x Audit reports for boiler operators.
BG01 Guidance on the safe Operation of Steam Boilers Edition 2 – © 2019
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