Page 539 - Offshore Electrical Engineering Manual

526 Index

Electrical system(s), 16 Environmental conditions, 111, 295
design criteria, 4–5 Environmental problems, 295
earthing Environmental protection
electrical earths, 289 enclosure ingress protection, 297
equipotential bonding, 291 motors, 301
instrument/communications earths, 291 noise control, 300
IS earth, 291 prime movers, 300
lightning protection, 294 structural considerations
platforms, 289 location of engine intakes and exhausts, 299
ships, 291 mechanical protection, 299–300
Electrical tests, 353, 355–356 shock and vibration, 299
on attracted armature relays, 369 weight control, 297–299
on thermal relays, 369–371 weather and sea protection, 295–297
Electricity, 133 EPIRB. See Emergency Position-Indicating
Electrolyte, 115 Radio-Beacon station (EPIRB)
Electromagnetic waves, 315–316 Equalisers, 85–87
Electromotive force (EMF), 176 Equipment
Electronic ambient air temperatures, 28
electrical checks on electronic disc relays, ATEX EX ‘E’ increased safety certified
366–368 motors, 34
replica type protection relays, 216–217 basis of machine ratings, 28–30
soft starter, 107 handling and storage, material and, 202
starters, 109–110 hot-spot temperatures, 26–27
thermal replica relay, 218f insulating materials, 25–26
Embedded temperature detectors (ETDs), 30 insulation and temperature ratings of, 25–26
Emergency location diagram, 187, 187f
equipment, 299 measurement of ambient air temperature, 30–31
escape lighting, 163 method of measurement of temperature rise by
generation, 43–45, 254 resistance, 30
generators, 43–45 ratings for variable speed motors, 32
or basic services switchboard, 8 readjust AVR during heat run, 32
power, 16 temperature rise, 27–28, 29t
pump, 60 thermal overloads and motor thermal protection,
radios, 112 32–33
response/support teams communications, 113 types for commissioning, 347
switchboards, 67, 77–78 typical alternator heat run procedure, 31
typical packaged generator set, 44f Equipotential bonding, 291
Emergency control centre (ECC), 113 Equivalent voltage source method, 238f, 239
Emergency control point (ECP), 113 Erection procedure, 202–204
Emergency Position-Indicating Radio-Beacon ESAFOP study. See Electrical Safety and
station (EPIRB), 179 Operability study (ESAFOP study)
Emergency shutdown system (ESD system), 17–18, Escape
43, 81, 170–171, 339 lighting, 145
Emerson Process Management DeltaV system, tunnel, 335
166–167 ESD system. See Emergency shutdown system
EMF. See Electromotive force (EMF) (ESD system)
Enclosure, 307 ETAP Protection & Coordination and Arc Flash
ingress protection, 297, 298t Analysis programs, 242
luminaire, 159–160 ETAP short circuit analysis software, 241–244, 243t
types, 104 ETAP Unbalanced Short Circuit module, 245
Engine-driven charging alternator, 115 ETDs. See Embedded temperature detectors (ETDs)
Engine-starting batteries, 112 Ethernet, 109
Environment, 14 EU and US certification for hazardous areas, 472f