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发表于 2012-9-6 09:02
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来自: 中国广东江门
DNV rules:::::::::::::::::::::::::;
F 300
Shore connections
301 General
a)
When supply from shore is used, the connection of the
supply cable from shore shall generally be carried out by
suitable terminals placed in a switchboard or in a shore-
connection box with a permanent cable connection to a
switchboard.
b) In the switchboard, the circuit shall, at least, be provided
with a switch - disconnector. In the shore-connection box,
switchgear and protection as required for feeder circuits
shall be installed, except that overcurrent protection can be
omitted if such protection is installed in the main switch-
board.
c)
If the shore connection is supplying power via the emer-
gency switchboard, C105 d) shall be complied with. Fur-
ther, the shore connection breaker shall be fitted with an
interlock (e.g. undervoltage release sensing the voltage on
the shore side of the breaker), so that the shore connection
is disconnected before the emergency generator or transi-
tional source of power is connected.
d) For A.C. systems with earthed neutral, terminals for con-
nection between the shore and ship’s neutrals shall be pro-
vided.
e)
For circuits rated maximum 63 A, connection by socket
outlet can be used instead of shore-connection box. The
circuit is then to have overcurrent protection on the main
switchboard.
Guidance note:
National authorities may require changeover or interlocking sys-
tem, so arranged that the connection to shore cannot be fed from
the vessel’s generators. |
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