| Nombre |
E
3_1 |
| Luis
Enrique Montañez López |
95% |
| Johon
Edson Páez Vargas |
95% |
| Herman
Foliaco |
95% |
| José
Benjamín Carrillo Rojas |
90% |
| Hasbleidy
Andrea Bermúdez Mendieta |
90% |
| Angelmiro
Sierra Sierra |
90% |
| Oswaldo
Torres González |
90% |
| Germán
Herrera Castellanos |
90% |
| Rafael
Arturo Villate Molina |
90% |
| Libardo
Rafael Martínez Restrepo |
90% |
| Oscar
Humberto Daza Villate |
90% |
| Javier
Hernando Moreno Guerrero |
90% |
| Miguel
Alejandro Cepeda Rojas |
90% |
| John
Harvey González Gómez |
90% |
| Andrés
Felipe Lenis Arango |
90% |
| Diego
Ernesto Viteri Toquica |
90% |
| Jhon
Anderson Sua Durán |
90% |
| Miguel
Eduardo Mora Quevedo |
85% |
| Luiz
Arthur Carlin |
85% |
| Henry
Alexander Gómez Acero |
85% |
| Héctor
Julio Cepeda Vargas |
85% |
| Orlando
Antonio Páez Riaño |
85% |
| Darío
Anibal Parra Ospina |
85% |
| Roland
Edicson Luna Daza |
85% |
| José
Alfredo Ortiz |
85% |
| Carlos
Alberto Beltrán |
85% |
| Ricardo
Enrique Rincón Prada |
85% |
| José
Robinsson Rubiano Quintero |
85% |
| Paula
Pulido |
85% |
| César
Andrés Garzón Bustos |
85% |
| Jonathan
Fernando Guauque Vargas |
85% |
| Eidan
Adrián Llanos Ochoa |
85% |
| Andrés
Felipe Contreras C. |
85% |
| Amilcar
Agostini |
85% |
| Luis
Felipe Giraldo Sandoval |
85% |
| Harold
Rodríguez Camargo |
85% |
| Vivian
Loreny Alarcón Prieto |
85% |
| Fabio
Andres Rodríguez Méndez |
85% |
| Carlos
Miguel Vargas |
85% |
| Alexandra
Hernández Gómez |
85% |
| Alexis
Hernández Cárdenas |
80% |
| Jorge
Alberto Gálvez Jaramillo |
80% |
| Julio
César Luna Riaño |
80% |
| Julio
Ernesto Cubides Cubides |
80% |
| Luis
Miguel Alonso Tovar |
80% |
| Camilo
Restrepo Centeno |
80% |
| Jesús
María Torres Gonzales |
80% |
| Néstor
Gonzalo Ramírez Parada |
75% |
| William
Alberto Castro Mora |
75% |
| Félix
Hernán Aragón Pinto |
75% |
| Jimmy
Yessid Aparicio Sandoval |
75% |
| Ricardo
Andrés Ballesteros Velásquez |
75% |
| Harold
Alberto Marimon Montes |
75% |
| Eisenhower
López Hidalgo |
70% |
| Didia
Ester Romero Quintero |
70% |
| Iván
Darío Arévalo Munevar |
70% |
| Gabriel
Zapata Soriano |
70% |
| Sergio
Ramírez Torrijos |
70% |
| Alberto
Hernández Guerrero |
70% |
| José
Gustavo Veloza Zea |
65% |
| Juan
Camilo Jones Rojas |
65% |
| Leidy
Carolina Acevedo Celis |
65% |
| Diego
Pinto Argüello |
65% |
Me pareció interesante el debate sobre el tipo de cables permitidos en las bandejas portacables en la sesión del día de hoy y quiero compartir lo siguiente para análisis y comentarios por parte de todos.
ResponderBorrarEn la sección 392.10 (A) se muestra la tabla 392.10(A) los tipos de cable que son permitidos instalar en bandejas:
NEC 392.10(A) “The wiring methods in Table 392.10(A) shall be permitted to be installed in cable tray systems under the conditions described in their respective articles and sections”.
Extrayendo de la tabla solo los cables de uso eléctrico, se permiten los siguientes tipos:
- Armored cable
- Metal-clad cable
- Mineral-insulated,
- Metal-sheathed cable
- Multiconductor service-entrance cable
- Multiconductor underground feeder and branch-circuit cable
- Nonmetallic-sheathed cable
- Other factory-assembled, multiconductor control, signal, or power cables that are specifically approved for installation in cable trays
- Power and control tray cable
Ninguno de los tipos anteriores de cables, permitidos para instalación en bandeja portacables son del tipo “SINGLE CONDUCTOR”. La TOTALIDAD corresponde a cables ensamblados en fábrica de DOS o MÁS conductores aislados bajo un recubrimiento metálico o no metálico.
Es claro que no existe restricción de tamaño mínimo de los conductores señalados anteriormente, siempre y cuando se cumplan con el tipo especificado.
Sin embargo, en instalaciones industriales se permite el uso de conductor “Single Conductor” siempre y cuando sea de una sección transversal de 1/0 o mayor.
392.10(B) In Industrial Establishments. The wiring methods in Table 392.10(A) shall be permitted to be used in any industrial establishment under the conditions described in their respective articles. In industrial establishments only, where conditions of maintenance and supervision ensure that only qualified persons service the installed cable tray system, any of the cables in 392.10(B)(1) and (B)(2) shall be permitted to be installed in ladder, ventilated trough, solid bottom, or ventilated channel cable trays.
(1) Single-conductor cables shall be permitted to be installed in accordance with (B)(1)(a) through (B)(1)(c).
(a) Single-conductor cable shall be 1/0 AWG or larger and shall be of a type listed and marked on the surface for use in cable trays. Where 1/0 AWG through 4/0 AWG single-conductor cables are installed in ladder cable tray, the maximum allowable rung spacing for the ladder cable tray shall be 225 mm (9 in.).