Braids made of many copper wires are also sometimes used for flexible electrical connections between large components. The numerous smaller wires comprising the braid are much more resistant to breaking under repeated motion and vibration than is a cable of larger wires. In electrical and electronic cables, braid is a tubular sheath made of braided strands of metal placed around a central cable for shielding against electromagnetic interference. The braid is grounded while the central conductor or conductors carry the signal.
Generators, turbines and transformers are the prime culprits, causing vibration at key distribution points in electrical power plants, substations and industrial plants. While upkeep and synchronization can reduce the scale of vibration from generators and turbines, the remaining vibration takes its toll over time, as loose connections result in a loss of performance, equipment failure and expansion from heat that dramatically increases the chance of fire. Even with the addition of dampening pads and mounts, vibration still occurs throughout these power distribution networks, loosening lugs and other connectors attached to rigid electrical connectors, like busbars and grounding bars.
Flexible electrical connectors solve high-voltage connectivity problems created by vibration from generators and transformers. When used as the initial connector from vibration-producing equipment to a power distribution network, flexible connectors (or flexible braided jumpers) isolate the main electrical grounding bus work from the cause of vibration.
Cross Section | Currunt Rating | Dimensions | Drill | |||
---|---|---|---|---|---|---|
Area mm2 | AMPS | B mm | D mm | t mm | Holes mm | Type |
50 | 250 | 25 | 25 | 4.8 | 11 | J1 |
50 | 260 | 30 | 30 | 4.3 | 13 | J1 |
50 | 280 | 35 | 35 | 4 | 13 | J1 |
75 | 300 | 30 | 30 | 5.5 | 13 | J1 |
75 | 330 | 35 | 35 | 5 | 13 | J1 |
100 | 360 | 25 | 25 | 8 | 13 | J1 |
100 | 360 | 30 | 30 | 7.6 | 13 | J1 |
100 | 370 | 40 | 40 | 6.5 | 13 | J1 |
100 | 350 | 50 | 50 | 5.8 | 13 | J1 |
120 | 420 | 30 | 30 | 8 | 13 | J1 |
120 | 420 | 40 | 40 | 7 | 13 | J1 |
150 | 440 | 30 | 30 | 8 | 13 | J1 |
150 | 480 | 50 | 40 | 7 | 13 | J1 |
150 | 480 | 40 | 50 | 6 | 13 | J1 |
200 | 500 | 50 | 40 | 8 | 13 | J1 |
200 | 600 | 60 | 50 | 7 | 13 | J1 |
200 | 625 | 75 | 50 | 6 | 13 | J1 |
200 | 630 | 40 | 60 | 4.8 | 13 | J1 |
250 | 630 | 50 | 75 | 10.5 | 13 | J1 |
250 | 700 | 75 | 40 | 9.5 | 13 | J1 |
250 | 725 | 40 | 50 | 8 | 13 | J1 |
300 | 750 | 50 | 75 | 11 | 13 | J1 |
300 | 780 | 100 | 50 | 10 | 13 | J1 |
300 | 790 | 100 | 40 | 8.5 | 13 | J1 |
350 | 800 | 40 | 50 | 11.5 | 13 | J1 |
400 | 900 | 50 | 60 | 15 | 13 | J1 |
400 | 950 | 70 | 75 | 13 | 13 | J1 |
400 | 950 | 100 | 100 | 12 | 13 | J1 |
400 | 1000 | 100 | 50 | 11 | 13 | J1 |
400 | 1000 | 100 | 60 | 10 | 13 | J1 |
500 | 1050 | 100 | 75 | 16 | 13 | J1 |
500 | 1100 | 100 | 100 | 13.5 | 13 | J1 |
500 | 1100 | 100 | 120 | 11.5 | 13 | J6 |
500 | 1100 | 100 | 150 | 10.5 | 13 | J1 |
500 | 1150 | 100 | 50 | 9.5 | 13 | J1 |
600 | 1160 | 120 | 60 | 9 | 13 | J1 |
600 | 1180 | 120 | 75 | 17 | 13 | J1 |
600 | 1250 | 100 | 100 | 16 | 13 | J1 |
600 | 1250 | 110 | 120 | 13 | 13 | J1 |
600 | 1270 | 110 | 150 | 11.5 | 13 | J1 |
600 | 1300 | 100 | 50 | 10.5 | 13 | J1 |
800 | 1350 | 120 | 60 | 10 | 13 | J1 |
800 | 1400 | 120 | 75 | 23 | 13 | J6 |
800 | 1500 | 100 | 100 | 21 | 13 | J1 |
800 | 1500 | 110 | 120 | 20 | 13 | J1 |
800 | 1550 | 110 | 150 | 15 | 13 | J1 |
800 | 1600 | 110 | 50 | 13 | 13 | J1 |
1000 | 1650 | 110 | 60 | 11.5 | 13 | J1 |
1000 | 1700 | 120 | 75 | 21.5 | 13 | J1 |
1000 | 1800 | 110 | 100 | 16 | 13 | J1 |
1000 | 1850 | 110 | 120 | 14.5 | 13 | J1 |
1200 | 1950 | 120 | 150 | 13.5 | 13 | J1 |
1200 | 2000 | 120 | 75 | 19 | 15 | J1 |
1200 | 2150 | 110 | 100 | 16.5 | 15 | J1 |
1500 | 2200 | 120 | 120 | 15 | 15 | J1 |
1500 | 2300 | 120 | 150 | 23 | 15 | J1 |
1500 | 2400 | 110 | 100 | 20 | 15 | J1 |
1500 | 2400 | 120 | 120 | 17.65 | 15 | J1 |
2000 | 2450 | 120 | 150 | 15 | 15 | J5 |
2000 | 2480 | 200 | 200 | 25 | 15 | J1 |
2000 | 2520 | 110 | 120 | 22 | 15 | J1 |
2400 | 2550 | 120 | 200 | 18 | 18 | J6 |
2400 | 2600 | 200 | 120 | 25 | 18 | J7 |
3000 | 2850 | 120 | 200 | 20 | 18 | J6 |
3000 | 3000 | 200 | 120 | 30 | 18 | J7 |
 
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