Marine Machinery Regulations
Version of the schedule from 2006-03-22 to 2021-06-22:
SCHEDULE IILow-Pressure Steam Boilers Having a Design Working Pressure Not Exceeding 350 kPa and Hot-Water Boilers Having a Design Working Pressure Not Exceeding 1 100 kPa or a Design Temperature Not Exceeding 120°C
SCHEDULE IILow-Pressure Steam Boilers Having a Design Working Pressure Not Exceeding 350 kPa and Hot-Water Boilers Having a Design Working Pressure Not Exceeding 1 100 kPa or a Design Temperature Not Exceeding 120°C
PART I(Section 4)Design Specifications
| Item | Requirements |
|---|---|
| 1 | None. |
PART II(Section 6)Plans
| Item | Required Information |
|---|---|
| 1 | General arrangement of the installation of the boiler in the ship, showing means of support. |
| 2 | Design working pressure, temperature and evaporation rate for steam or flow rate for water. |
| 3 | Heating surface area of the boiler. |
| 4 | Materials, sizes and arrangements of parts under pressure, including valves. |
| 5 | Details of welded seams, openings, connections, attachments and supports, including details of welding materials, methods and procedures. |
| 6 | Pressure setting, relieving capacity and venting arrangement of safety valves. |
| 7 | Arrangements and details of boiler feed-water controls, monitors and alarms, including emergency controls. |
| 8 | Diagrammatic arrangements of fuel supply, combustion air supply, combustion controls, monitors and alarms, including emergency controls and a written description of the combustion controls. |
| 9 | Where a manufacturer of a boiler certifies that the boiler was constructed in accordance with rules or codes, information set out in items 2 to 7 is not required to be submitted
|
PART III(Subsection 12(2))Construction and Installation Inspections
DIVISION IConstruction Inspection
| Item | Requirements |
|---|---|
| 1 | Identification from material test certificates, before construction is commenced, of materials to be used, including welding metal, and of physical properties and mechanical test results obtained from material testing carried out in accordance with these Regulations. |
| 2 | Verification that welding was carried out by welders certified by a Provincial Government of Canada, or another authority having similar standards where the welding was carried out outside Canada, for the class of work to be done. |
| 3 | Inspection of welds, including non-destructive test examination and verification of the heat treatment process in accordance with rules or codes. |
| 4 | Verification of plate preparation and alignment prior to assembly and, on completion of all construction operations, confirmation of circularity of shells of the low-pressure steam boiler or of the hot-water boiler. |
| 5 | Identification from the component inspection certificates of components related to the safety of the low-pressure boiler. |
| 6 | Inspection of components and their installation, including tubes and tube plates. |
| 7 | Inspection of the constructed low-pressure boiler. |
| 8 | Witnessing of an hydrostatic pressure test in accordance with rules or codes. |
DIVISION IIInstallation Inspection
| Item | Requirements |
|---|---|
| 1 | Verification of correct alignment of securing arrangements. |
| 2 | Verification of correct adjustment and operational condition of the connection of the boiler to associated systems. |
| 3 | Verification of correct adjustment and operational condition of safety, control and monitoring devices. |
| 4 | Witnessing of hydrostatic pressure tests at the assigned working pressure. |
| 5 | Verification of reliability and sufficiency under trials up to full power under normal working conditions for a suitable endurance period of not less than 2 hours, taking into consideration the size and complexity of the boiler. |
PART IVPeriodic General Inspections and Periodic Special Inspections
DIVISION I(Section 19)Periodic General Inspection
| Item | Requirements |
|---|---|
| 1 | Correct adjustment and operational condition of safety valves. |
| 2 | Operational condition of water gauges and boiler valves. |
| 3 | Locations where fluid leakage, metal overheating or metal wastage may occur. |
| 4 | Correct adjustment and operational condition of emergency fuel shut-off valves. |
| 5 | Correct adjustment of controls and monitoring systems of feed-water and fuel and its combustion. |
| 6 | Operational condition of alarm systems, particularly where the boiler is designed for non-continuous local supervision. |
DIVISION IIPeriodic Special Inspection
SUBDIVISION I(Subsection 20(1))Parts to be Inspected
| Item | Requirements |
|---|---|
| 1 | Internal steam and liquid spaces, as far as practicable, with all spaces cleaned and removable components removed and where, due to construction features, an adequate internal inspection cannot be carried out, a hydrostatic pressure test of 1.25 times the assigned working pressure of the boiler. |
| 2 | Access and inspection openings. |
| 3 | Boiler mountings, including safety valves and water-level gauges, following opening up and cleaning. |
| 4 | Float chambers and float mechanisms on feed-water regulators, following opening up and cleaning. |
| 5 | Pipes, actuators and other components, incorporated in self-regulating and monitoring systems, as far as practicable, without dismantling, where the general condition of the pipes, actuators and other components is adequate for further use. |
| 6 | Emergency fuel shut-off devices. |
| 7 | Combustion spaces following cleaning, excluding uptakes unless there is apparent damage, improper operation or deteriorated condition of the uptakes. |
| 8 | Seams, mountings, seatings and welded attachments, following the removal of insulation and sheathing to the extent considered necessary by the inspector on the basis of the general condition of the boiler. |
| 9 | Plate thickness testing or hydrostatic pressure testing or other non-destructive testing, if there is apparent damage, improper operation or deteriorated condition of the boiler. |
| 10 | Except where, on the basis of the periodic general inspection, there is apparent damage, improper operation or deteriorated condition of components, items 1 to 9 do not apply to
|
SUBDIVISION II(Subsection 20(2))Intervals
| Item | Requirements |
|---|---|
| 1 | At intervals not exceeding 24 months. |
- Date modified: