Section 6 Equipment and systems – Winterisation B

6.1.1 In addition to the requirements in Ch 1, 5 Equipment and systems – Winterisation C for Winterisation C, the following requirements are to be complied with.

6.2.1 In conjunction with Ch 1, 5.4 Winterisation of auxiliary machinery systems and deck working areas 5.4.7, heating is to be provided under the bottom of the hydraulic oil tanks.

6.2.2 Arrangements are to be provided to protect fuel oil within exposed pipes against freezing. The exposed fuel oil filling and transfer lines, and any sludge transfer lines, are to be fitted with thermal insulation and trace heating arrangements.

6.2.3 In conjunction with Ch 1, 5.4 Winterisation of auxiliary machinery systems and deck working areas 5.4.9, the air supply is to be both dry, with a dew point appropriate to the external design air temperature, and heated.

6.2.4 Exposed expansion pieces, where fitted, are to be protected from the build-up of ice by the provision of approved bellows units.

6.3.1 Exposed control panels are to be fitted in heated steel covers to protect against icing and components freezing.

6.4.1 In conjunction with Ch 1, 5.6 Winterisation of electrical installations 5.6.3, emergency generators are to be fitted with electrical heating arrangements for the cooling and lubricating oil systems.

6.4.2 Satellite/GPS motors and exposed speaker systems are to be provided with heating arrangements.

6.4.3 The navigation lights on the forward mast are to be provided with heating arrangements and ice removal measures to protect against icing.

6.5.1 The lifeboat access doors are to be provided with trace heating arrangements.

6.5.2 The life rafts are to be covered with thermal blankets and monitoring arrangements are to be provided that will activate an alarm in accordance with the alarm system required by Pt 6, Ch 1, 2 Essential features for control, alarm, monitoring and safety systems of the Rules and Regulations for the Classification of Ships, July 2022 to allow responsible personnel to reinstate heating in the event of a failure.

6.5.3 The EPIRB/SART is to be provided with heating arrangements on the release mechanism. The heating arrangements are not to interfere with the function of the mechanism.

6.6.1 Space heating is regarded as an essential service and requires two heating sources, see Pt 5, Ch 14, 3.1 Oil burning units 3.1.1 and Pt 6, Ch 2, 2.2 Number and rating of generators and converting equipment of the Rules and Regulations for the Classification of Ships, July 2022.

6.6.2 In conjunction with Table 1.5.1 Space heating arrangements for Winterisation C(t) , the heating requirements in Table 1.6.1 Space heating arrangements for Winterisation B(t) are to be complied with.

6.6.3 In conjunction with Ch 1, 5.8 Winterisation of spaces/compartments 5.8.7, all cargo control room windows are to be fitted with thermally heated glass to provide protection against the formation of ice obscuring visibility during discharging/loading operations. See also Ch 1, 6.6 Winterisation of spaces/compartments 6.6.4.

6.6.4 In conjunction with Ch 1, 5.8 Winterisation of spaces/compartments 5.8.8, all bridge windows (excluding door windows) are to be fitted with thermally heated glass. Where it can be demonstrated that the build-up of ice on the outside and inside surfaces of deck-house windows obstructing visibility can be effectively prevented by adopting only one means of heating, i.e. heating with filament or hot air blowers, the provision of one means only may be specially considered.

6.6.5 In conjunction with Ch 1, 5.8 Winterisation of spaces/compartments 5.8.10, bridge wings are to be fully enclosed.

6.7.1 In conjunction with Ch 1, 5.9 Winterisation of accommodation and escape routes 5.9.1, a dedicated heated airlock space or heating around the door frame is to be provided and the door seals are to be suitable for low temperature conditions.

6.7.2 Above-deck walkways, where fitted, are to be provided with heating arrangements, as far as practicable, to allow alternative access to bow spaces.

6.7.3 External handrails on routes as given in Ch 1, 5.11 Ice removal and prevention measures 5.11.1, stairways and ladders are to be fitted with trace heating arrangements to provide access to main working areas and escape routes. Arrangements are to be fitted to cut off automatically in the event of excessively high temperatures to prevent injury when in contact, see Ch 1, 5.1 General 5.1.3.

6.8.1 In conjunction with Ch 1, 5.10 Winterisation of tanks 5.10.5, exposed air vent pipe heads are to be of a dedicated type suitable for the external design air temperature (with internal heating arrangements).

6.9.1 In conjunction with Ch 1, 5.11 Ice removal and prevention measures 5.11.2, mechanical and electrical control panels are to be provided with steel covers, as far as practicable.