An evaluation of old armored cables in building wiring systems (Record no. 184024)

MARC details
000 -LEADER
fixed length control field 01897nab a2200181 4500
008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA - INFORMACIÓN GENERAL
Campo de control de longitud fija 260224s2011 xxu
245 00 - TITULO
Título An evaluation of old armored cables in building wiring systems
260 ## - PUBLICACION, DISTRIBUCION, ETC
Lugar de publicación, distribución, etc.
Nombre de publicador, distribuidor, etc.
Fecha de publicación, distribución, etc. ene. 2011
270 ## - FECHA DE CARGA
Fecha de carga 19/07/2011 ; 19/07/2011
300 ## - DESCRIPCION FISICA
Otra extensión 31 p. ; 107-147
520 ## - RESUMEN, ETC
Resumen Transcripción del resumen del autor. Armored cable has been used in building wiring systems since the early 1900s and remains an accepted wiring method today. The original product developed in the early 1900s and that which is commercially available today have significant differences in construction and performance. Likewise the demand and expectation of building wiring systems has changed. This paper explores some of those differences as well as concerns and hazards presented by the continued use of older constructions of armored cable. Testing was performed on samples of aged cables removed from service to determine impedance and temperature rise of the armor when conducting AC current. The results were compared to the DC resistance of the armor as well as the applicable Underwriters Laboratories standard. The performance of cable samples was also tested in construction configurations likely to be encountered in buildings. Results indicate that ground fault currents conducted via the armor of older cable constructions can result in fire and shock hazards where the impedance and circuit characteristics limit the fault current to below the trip level of the circuit overcurrent protective device. Temperature rise of the armor can easily exceed the rating of the conductor insulation contained therein and in some cases present a fire hazard to combustible material in contact with the cable.
581 ## - ESTADO DE COLECCIÓN
Estado de colección 1
773 0# - CORRECCIÓN
Título Fire Technology
Partes relacionadas 47
942 ## - DESC. DE MATERIAL
Tipo de item KOHA Artículo de Revista
100 1# - RESPONSABLE PERSONAL
Apellido, Nombre Sleights, John E.
9 (RLIN) 50853
Holdings
Biblioteca propietaria Biblioteca actual Fecha de adquisición Inventario Total de préstamos Inventario Fecha de carga Tipo de item KOHA
Biblioteca Alejandro Angel Bulgheroni Biblioteca Alejandro Angel Bulgheroni 06/03/2026 200056077   200056077 06/03/2026 Artículo de Revista


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