Page 484 - 35_DS702_E_2014_Lightning_Protection_Guide

Corrosion protection 110, 142–143, 149, 178, 346, 364, 390 Earth surface potential 119, 126, 168
Corrosive waste 149 Earth-side connecting cable 237
Courtyards 100 Earth-termination system 10, 17, 19, 35, 54, 57, 61, 81, 88–89, 95,
CUI Conductor 159, 418–419 97, 99, 101, 103–108, 118–119, 121, 123, 126–129, 138–139,
Cut-off frequency 247, 249 141–142, 151–152, 154, 156, 159, 161, 168–175, 178, 180,
189, 196, 203–204, 256, 259, 268, 277, 279, 287, 291, 295,
332, 344–346, 371, 375–378, 389–390, 412, 417, 420, 430,
D 438, 442–443
Data lines 181, 200, 202–203, 208, 320–321, 351, 363, 371, 383 Earth-termination system for equipotential bonding 178
Data transmission rate 249 Earth-to-cloud flash 16–17
Deflection of the tip of the air-termination rod 92 Earthing 12, 29–30, 36–37, 39–40, 88, 97, 101, 118, 141–142, 150,
DEHN Air-Termination Tool 49, 55 167–168, 170, 173, 199, 207, 220, 259, 293, 320, 345, 363,
DEHN Distance Tool 49, 52, 54, 155, 364 377, 403, 439, 443
DEHN Earthing Tool 49, 54 Earthing conductor 118, 178, 182, 443
DEHN Risk Tool 49–52 Effect of the corrosion current 144
DEHNbloc 181, 210, 236, 268, 280–281, 349–350, 352, 398, 448 Electrical isolation 252, 292
DEHNflex 209, 292, 294–295, 297, 322, 398–399 Electrical potential 143
DEHNgrip 78, 113–115 Electrician 130, 237, 346
DEHNguard 209–210, 235–236, 240, 243, 268, 280–281, 286, 302, Electro-geometric model 63
311, 322, 327–328, 332, 339–340, 347, 349–350, 352, 360, Electrochemical corrosion 143–144, 174
366–371, 373, 382, 397–398, 428–429, 433, 448, 454 Electrode 41, 143–146
DEHNrapid 322 Electrolyte 142–144, 146
DEHNshield 297, 302, 340, 359, 371–373, 381–382, 427–430 Electromagnetic field 100, 187–188, 191, 194–195, 199, 343
DEHNsnap 113–116 Electromagnetic shield 195
DEHNsupport 49, 52, 54–55, 155, 363, 375, 446 Emergency alarm systems 12, 309, 311
DEHNvenCI 207, 243, 281 Energy coordination 206, 212–213, 219, 253, 358–360, 367, 427
DEHNventil 181, 204, 206, 210, 238, 240, 242, 280–281, 287–289, Entrance point into the building 88, 181–182, 197, 202, 205, 272,
297, 322, 327, 332, 369, 371–373, 377–378, 381–382, 394, 286–287, 289, 302, 314, 371, 390, 397, 423–424, 427, 434
397–399, 428–429, 448, 454–455 Equalising current 182, 198, 203, 268, 320
Differential-mode interference 249, 252, 256, Equipotential bonding 10, 29–30, 36–39, 47, 52, 57, 61, 74, 82,
Dimensions for ring earth electrodes 111 88, 97, 104–105, 109–110, 113, 119, 126–129, 133, 143, 151,
Disconnection selectivity 242, 280, 356 155, 168, 177–184, 189, 194, 196, 198–199, 201–209, 237,
Distances between down conductors 95 243–244, 259–261, 280, 287–288, 291–293, 302, 314–315,
320, 322, 326, 332, 340, 343, 346–347, 351, 363–364,
Distribution network operator 173–174, 221, 346, 377, 397 371, 375–378, 386, 390, 393–394, 397, 401, 403, 417, 427,
Distributor 254–255, 314–316, 339–340, 409, 434 433–434, 438, 443, 447–449, 452–453, 455
Down conductor 68, 76, 81, 87–89, 95–100, 106–109, 111, 128, Equipotential bonding bar (EBB) 126, 135, 178–180, 182,
134, 149, 151–153, 155–156, 158–160, 165, 167, 182, 276, 199–202, 237, 261, 279, 322, 346, 358
279, 344–345, 394, 397, 418, 420, 438, 446, 452 Equipotential bonding conductor 134–135, 137, 237, 287, 293,
Down conductor installed along a downpipe 98 379, 443
Down-conductor systems for courtyards 100 Equipotential bonding network 47, 192, 196, 199–200
Downward flash 15–18, 24–25 Equipotential surface of the foundation earth electrode 151
Equivalent collection area 35
E Ethernet 255, 280, 318–319, 336, 351, 373, 383
Earth connection 98, 201, 238 Ex zones 31, 108–109, 255–256, 280, 390, 437, 439
Earth connection of a metal façade 98 Expert 55
Earth electrode for buildings with “black tank” 135 Explosion 31, 34, 36, 41–42, 51, 108, 257, 344
Earth electrode for buildings with “white tank” 132–134 Explosion groups 256–257
Earth electrodes in rocky ground 141 External lightning protection 62, 71–72, 76, 87–88, 113–114, 248,
Earth potential 119, 122, 124, 126, 156, 168–169 276, 285, 332, 356, 358, 364, 369, 372, 390, 437, 445–447
Earth resistance 119–127, 136
Earth resistivity 119–124, 127 F
Earth rod 54, 57, 119, 123, 125–127, 140–141, 152, 167, 174, 358, Fast Ethernet 255, 318–319
399, 417–418 Feeding electricity into the grid 280
Earth rods connected in parallel 125 FEM calculation model 91

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