39514.14.6.4 Foil + Braid + Foil + Braid........................................................ 427
14.15 Shield Current Induced Noise............................................................. 427
14.16 Grounds of Shields..................................................................... 427
14.16.1 Ground Loops...................................................................... 428
14.16.2 Telescopic Grounds.................................................................. 428
14.17 UTP and Audio........................................................................ 429
14.17.1 So Why Shields?.................................................................... 429
14.18 AES/EBU Digital Audio Cable............................................................ 430
14.18.1 AES/EBU Digital Coaxial Cable....................................................... 430
14.19 Triboelectric Noise..................................................................... 430
14.20 Conduit Fill........................................................................... 431
14.21 Long Line Audio Twisted Pairs........................................................... 431
14.22 Delay and Delay Skew.................................................................. 431
14.23 Attenuation........................................................................... 432
14.24 Characteristic Impedance................................................................ 432
14.25 Characteristic Impedance................................................................ 433
14.26 Twisted-Pair Impedance................................................................. 434
14.26.1 Transmission Line Termination........................................................ 435
14.27 Loudspeaker Cable..................................................................... 435
14.27.1 Damping Factor.................................................................... 437
14.27.2 Crosstalk.......................................................................... 437
14.28 National Electrical Code................................................................. 438
14.28.1 Designation and Environmental Areas................................................... 439
14.28.2 Cable Types........................................................................ 440
14.28.3 NEC Substitution Chart............................................................... 440
14.28.4 Final Considerations................................................................. 440
14.28.5 Plenum Cable...................................................................... 441
14.28.6 Power Distribution Safety............................................................. 442
14.28.6.1 Ground-Fault Interrupters......................................................... 442
14.28.7 AC Power Cords and Receptacles....................................................... 443
14.28.8 Shielded Power Cable................................................................ 444
14.28.9 International Power.................................................................. 445
Acknowledgments........................................................................... 448
Bibliography................................................................................ 448