Source: http://www.mxak.org/regulations/46CFR/46cfr112.htm
Timestamp: 2017-12-12 08:31:00
Document Index: 610140726

Matched Legal Cases: ['§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§ 112', '§112', '§112', '§112', '§112', '§112', '§112', '§112', '§113', '§112', '§112', '§112', '§112', '§112', '§112', '§112', '§112', '§112', '§112', '§111', '§112', '§111', '§112', '§111', '§58', '§112']

e-CFR Data is current as of October 16, 2008
§ 112.01-1 Purpose.
§ 112.01-5 Manual emergency lighting and power system.
§ 112.01-10 Automatic emergency lighting and power system.
§ 112.01-15 Temporary emergency power source.
§ 112.01-20 Final emergency power source.
§ 112.05-1 Purpose.
§ 112.05-3 Main-emergency bus-tie.
§ 112.05-5 Emergency power source.
§ 112.15-1 Temporary emergency loads.
§ 112.15-5 Final emergency loads.
§ 112.15-10 Loads on systems without a temporary emergency power source.
§ 112.20-1 General.
§ 112.20-3 Normal source for emergency loads.
§ 112.20-5 Failure of power from the normal source or final emergency power source.
§ 112.20-10 Diesel or gas turbine driven emergency power source.
§ 112.20-15 Transfer of emergency loads.
§ 112.25-1 General.
§ 112.25-3 Normal source for emergency loads.
§ 112.25-5 Failure of power from the normal source.
§ 112.25-10 Transfer of emergency loads.
§ 112.30-1 General.
§ 112.30-3 Normal source for emergency loads.
§ 112.30-5 Transfer of emergency loads.
§ 112.30-10 Restoration of normal source potential.
§ 112.35-1 General.
§ 112.35-3 Normal source for emergency loads.
§ 112.35-5 Manually started emergency systems.
§ 112.35-7 Activating means.
§ 112.37-1 General.
§ 112.39-1 General.
§ 112.39-3 Operation.
§ 112.40-1 General requirements.
§ 112.43-1 Switches.
§ 112.43-5 Controls on island type vessels.
§ 112.43-7 Navigating bridge distribution panel.
§ 112.43-9 Signaling lights.
§ 112.43-11 Illumination for launching operations.
§ 112.43-13 Navigation light indicator panel supply.
§ 112.43-15 Emergency lighting feeders.
§ 112.45-1 Visible indicators.
§ 112.50-1 General.
§ 112.50-3 Hydraulic starting.
§ 112.50-5 Electric starting.
§ 112.50-7 Compressed air starting.
§ 112.55-1 General.
§ 112.55-5 Emergency lighting loads.
§ 112.55-10 Storage battery charging.
§ 112.55-15 Capacity of storage batteries.
Source: CGD 74–125A, 47 FR 15267, Apr. 8, 1982, unless otherwise noted.
(2) A bus-tie to the main switchboard that meets §112.05–3; and
[CGD 74–125A, 47 FR 15267, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28286, June 4, 1996; 61 FR 36787, July 12, 1996]
(a) The emergency power source must meet table 112.05–5(a) and have the capacity to supply all loads that are simultaneously connected to it, except a load on a bus-tie to the main switchboard or non-required loads that are connected in accordance with §112.05–1(c).
Table 112.05–5(a)
3The emergency lighting requirements of §112.15–1 (b), (c), (f), and (g) must be met.
(b) The emergency power source must be independent of the ship's service lighting and powerplant and propulsion plant, except for the compressed air starting means allowed in §112.50–7(c)(3)(i). A stop control for an emergency generator must be only in the space that has the emergency generator, except a remote mechanical reach rod is permitted for the fuel oil shut-off valve to an independent fuel oil tank located in the space.
(d) The emergency power source, its associated transforming equipment, and the emergency switchboard must be located aft of the collision bulkhead, outside of the machinery casing, and above the uppermost continuous deck. Each compartment containing this equipment must be readily accessible from the open deck and must not contain machinery not associated with, or equipment not in support of, the normal operation of the emergency power source. Equipment in support of the normal operation of the emergency power source includes, but is not limited to, ventilation fans, CO2bottles, space heaters, and internal communication devices, such as sound powered phones.
[CGD 74–125A, 47 FR 15267, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28286, June 4, 1996; 62 FR 23910, May 1, 1997]
On vessels required by §112.05–5(a) to have a temporary emergency power source, the following emergency lighting and power loads must be arranged so that they can be energized from the temporary emergency power source:
(r) Each general emergency alarm system required by SOLAS 74.
[CGD 74–125A, 47 FR 15267, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28286, June 4, 1996]
On vessels required to have a final emergency power source by §112.05–5(a) of this chapter, the following emergency lighting and power loads must be arranged so that they can be energized from the final emergency power source:
(a) Each load under §112.15–1.
(j) Each radio direction finder, loran, radar, gyrocompass, depth sounder, global positioning system (GPS), satellite navigation system (SATNAV), speed log, rate-of-turn indicator and propeller pitch indicator.
(l) Each general emergency alarm flashing light required by §113.25–10 of this chapter.
(o) Each emergency generator starting compressor, as allowed by §112.50–7(c)(3)(ii).
(v) Each smoke extraction fan (not including smoke detector sampling) and CO2exhaust fan for spaces.
[CGD 74–125A, 47 FR 15267, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28287, June 4, 1996; 61 FR 36787, July 12, 1996]
If there is no temporary emergency power source, the loads under §112.15–1 must be arranged so that they can be energized from the final emergency power source.
(a) If there is a reduction of potential of the normal source by 15 to 40 percent, the loads under §112.15–1 must be automatically supplied from the temporary emergency power source.
(b) For systems in which a reduction of frequency of the normal source or final emergency power source adversely affects the emergency system and emergency loads, there must be means to transfer the loads under §112.15–1 to the temporary emergency power source upon a reduction in the frequency of the normal source or final emergency power source.
Simultaneously with the operation of the transfer means under §112.20–5, the diesel engine or gas turbine driving the final emergency power source must start automatically with no load on the final emergency power source.
(a) When the potential of the final emergency power source reaches 85 to 95 percent of normal value, the emergency loads under §112.15–5 must transfer automatically to the final emergency power source and, on a passenger vessel, this transfer must be accomplished in no more than 45 seconds after failure of the normal source of power.
(c) If the potential of the final emergency power source is less than 75 to 85 percent of normal value while supplying the emergency loads, the temporary emergency loads under §112.15–1 must transfer automatically to the temporary emergency power source.
(a) When the potential of the final emergency source reaches 85 to 95 percent of normal value, the emergency loads under §112.15–5 must transfer automatically to the final emergency power source and this transfer must be accomplished in no more than 45 seconds after failure of the normal source of power.
If there is a reduction of potential of the normal source by 15 to 40 percent, the emergency loads under §112.15–5 must transfer automatically from the normal source to the emergency power source.
[CGD 74–125A, 47 FR 15267, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28287, June 4, 1996]
Each temporary source of emergency power required by Table 112.05–5(a) must consist of a storage battery of sufficient capacity to supply the temporary emergency loads for not less than one-half hour.
(a) Each battery-operated, relay-controlled lantern used in accordance with Table 112.05–5(a) must:
(b) As required in §112.43–7; or
(2) Lights for survival craft launching operations under §111.75–16, except as allowed in §112.43–5.
Branch circuits supplying power to lights for survival craft launching operations must supply no other equipment and meet §111.75–16 of this chapter.
[CGD 94–108, 61 FR 28287, June 4, 1996]
(f) The generator set must maintain proper lubrication when inclined to the angles specified in §112.05–5(c), and must be arranged so that it does not spill oil under a vessel roll of 30 degrees to each side of the vertical.
(g) The generator set must shut down automatically upon loss of lubricating oil pressure, overspeed, or operation of a fixed fire extinguishing system in the emergency generator room (see §111.12–1(b) for detailed overspeed trip requirements).
(i) If the prime mover is a gas turbine, it must meet the shutdown and alarm requirements in §58.10–15(f) of this chapter.
[CGD 74–125A, 47 FR 15267, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28287, June 4, 1996; USCG–2004–18884, 69 FR 58348, Sept. 30, 2004]
[CGD 94–108, 61 FR 28288, June 4, 1996]
[CGD 74–125A, 47 FR 15267, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28288, June 4, 1996]
(3) To carry the remaining emergency loads continuously for the time prescribed in §112.05–5(a), table 112.05–5(a).
[CGD 74–125A, 47 FR 15267, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28288, June 4, 1996; 61 FR 39695, July 30, 1996]