Emergency Electrical Power - Group 2 and 3

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S1.3 Emergency Electrical Power in Ships of Group 2

S1.3.1 Every ship of Group 2 shall have a self-contained emergency source of electrical power that shall be:

1. located above the bulkhead deck outside the machinery casings and aft of the collision bulkhead; and
2. so located in relation to the main source of electrical power as to ensure that a fire or other casualty in the machinery space will not interfere with the supply or distribution of emergency power.

S1.3.2 The emergency source of electrical power shall be adequate for a period of twelve hours except that, in the case of a ship engaged regularly on voyages of short duration, a lesser period than the 12 hour period will be permitted provided that:

1. in no case is it less than 6 hours;
2. the level of safety is maintained and;
3. information in respect of the vessel its voyage and life saving and fire fighting equipment it carries is submitted to the Board for inspection.

S1.3.3 Emergency lighting shall be provided for the illumination, at every muster, embarkation station and oversides, all alleyways, stairways, exits and machinery spaces, the emergency generator space and all control stations containing radio, main navigating equipment and central fire recording equipment.

S1.3.4 The emergency power shall be capable of operating simultaneously the following equipment in all cases where that equipment is electrically operated and required by any Regulations made under the Act:

1. the emergency lighting required by subsection S1.3.3;
2. the alternate system of navigation lights, if solely operated by electrical power;
3. the emergency bilge pump, if electrically operated,
4. the general alarm system;
5. the fire detection and its alarm system; and fire door holding, indication and release system: and
6. the ship's radio station, if the vessel is equipped with an emergency generator; and
7. the operation of the steering gear for a period of time, where required by Schedule (VII) of the Marine Machinery Regulations; and
8. for a period of half an hour the watertight doors, which are required to be power operated together with their indicators and warning signals; where sequential operation of the doors is provided all doors shall be closed within 60 seconds.

S1.3.5 The emergency source of electrical power may be either:

1. a generator driven by a suitable prime mover with an independent fuel supply using fuel having a flashpoint of not less than 43° C and equipped with a starting arrangement as per Part 1 Section 1 (1.6 to 1.10) of this standard; or
2. storage batteries capable of carrying the emergency load without recharging or excessive voltage drop.

S1.3.6 The emergency switchboard shall be installed as near as is practicable to the emergency source of electrical power except that storage batteries shall not be fitted in the same space as the emergency switchboard.

S1.3.7 The emergency switchboard shall be supplied from the main switchboard during normal operation.

S1.3.8 Provision shall be made for the periodic testing of the emergency source of electrical power and of automatic arrangements.

S1.4 Emergency Electrical Power in Ships of Group 3

S1.4.1 Subject to subsection S1.4.2, every ship of Group 3, other than a small passenger ship certificated to operate only between sunrise and sunset, shall be provided with lights that are permanent or portable and that:

1. will illuminate every launching station, muster and embakation station, stowage position of survival craft, passageway and exit; and
2. can be supplied with electrical power from an emergency source described in subsection S1.4.4.

S1.4.2 Every ship to which subsection S1.4.1 applies:

1. that is a launch of less than 30.5 metres in length; or
2. that is a ship other than a launch and is less than 18.3 metres in length, may, in lieu of the lights required by subsection S1.4.1 be provided with non-rechargeable battery operated hand lanterns.

S1.4.3 Where a ship to which subsection S1.4.1 applies is provided with lanterns pursuant to subsection S1.4.2, the batteries for the lanterns shall be replaced with new batteries annually and the lanterns shall be tested during every annual and intermediate inspection of the ship and at the time of every boat and fire drill.

S1.4.4 Where a ship to which subsection S1.4.1 applies is provided with lights described in that subsection, the ship shall be provided with an emergency source of electrical power consisting of a rechargeable storage battery or batteries located outside the machinery space on the ship and capable of supplying power to the lights for a period of not less than one hour.

S1.4.5 Where the alternate system of navigation lights is required to be supplied by an electrical source, the system shall be provided with an emergency source of power in accordance with S1.4.4

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