MAN B&W
5.17
Page 2 of 3
MAN Diesel
MAN Diesel
198 49 292.3
MAN B&W MC/MCC, ME-B/ME/MEC engines
A cable with a cross section not less than 45 mm²
is used for cabling the shaftline earthing device to
the hull. The length of the cable to the hull should
be as short as possible.
Monitoring equipment should have a 4-20 mA
signal for alarm and a two range mV-meter with
a switch for changing range. Primary range from
0 mV to 50 -150 mV DC, and secondary range
from 0 mV to 300-1500 mV DC.
2UDDER
6OLTAGEæMONITORINGæ
FORæSHAFTçHULLæPOTENTIALæ
DIFFERENCE
3HAFTLINE
EARTHINGæDEVICE
6
0ROPELLERæSHAFT
)NTERMEDIATEæSHAFT
)NTERMEDIATEæSHAFTæBEARING
#URRENT
4HRUSTæBEARING
-AINæBEARINGS
0ROPELLER
079 21 82-1.2.2.0
Fig. 5.17.02: The shaftline earthing device slip rings must be fitted on the foremost intermediate shaft as close to the
engine as possible
When the shaftline earthing device is working
correctly, the electrical potential will normally be
within the range of 10-50 mV DC. The alarm set-
points should be 5 mV for a low alarm and 80 mV
for a high alarm. The alarm signals with an alarm
delay of 30 seconds and an alarm cut-off, when
the engine is stopped, must be connected to the
alarm system.
Connection of cables as shown on the sketch,
Fig. 5.17.01.
Summary of Contents for B&W S80ME-C7
Page 4: ......
Page 10: ......
Page 15: ...MAN B W MAN Diesel Engine Design 1 ...
Page 16: ......
Page 30: ......
Page 31: ...MAN B W MAN Diesel Engine Layout and Load Diagrams SFOC 2 ...
Page 32: ......
Page 38: ......
Page 50: ......
Page 62: ......
Page 63: ...MAN B W MAN Diesel Turbocharger Choice Exhaust Gas By pass 3 ...
Page 64: ......
Page 70: ......
Page 71: ...MAN B W MAN Diesel Electricity Production 4 ...
Page 72: ......
Page 86: ...MAN B W Page of 1 MAN Diesel This section is not applicable PTO BW GCR 4 04 198 47 58 9 0 ...
Page 109: ...MAN B W MAN Diesel Installation Aspects 5 ...
Page 110: ......
Page 143: ...MAN B W MAN Diesel List of Capacities Pumps Coolers Exhaust Gas 6 ...
Page 144: ......
Page 162: ......
Page 163: ...MAN B W MAN Diesel Fuel 7 ...
Page 164: ......
Page 178: ......
Page 179: ...MAN B W MAN Diesel Lubricating Oil 8 ...
Page 180: ......
Page 198: ......
Page 199: ...MAN B W MAN Diesel Cylinder Lubrication 9 ...
Page 200: ......
Page 208: ......
Page 209: ...MAN B W MAN Diesel Piston Rod Stuffing Box Drain Oil 10 ...
Page 210: ......
Page 212: ......
Page 213: ...MAN B W MAN Diesel Central Cooling Water System 11 ...
Page 214: ......
Page 219: ...MAN B W MAN Diesel Seawater Cooling System 12 ...
Page 220: ......
Page 230: ......
Page 231: ...MAN B W MAN Diesel Starting and Control Air 13 ...
Page 232: ......
Page 238: ......
Page 239: ...MAN B W MAN Diesel Scavenge Air 14 ...
Page 240: ......
Page 249: ...MAN B W MAN Diesel Exhaust Gas 15 ...
Page 250: ......
Page 264: ......
Page 265: ...MAN B W MAN Diesel Engine Control System 16 ...
Page 266: ......
Page 275: ...MAN B W MAN Diesel Vibration Aspects 17 ...
Page 276: ......
Page 289: ...MAN B W MAN Diesel Monitoring Systems and Instrumentation 18 ...
Page 290: ......
Page 312: ......
Page 313: ...MAN B W MAN Diesel Dispatch Pattern Testing Spares and Tools 19 ...
Page 314: ......
Page 338: ......
Page 339: ...MAN B W MAN Diesel Project Suppport and Documentation 20 ...
Page 340: ......
Page 349: ...MAN B W MAN Diesel Appendix A ...
Page 350: ......