This publication presents calculated ampacities for single-conductor solid-dielectric 15 through 69 kV power cables with bonded and grounded shields, copper or aluminum conductors, spaced or trefoilâEUR configurations, single or double circuits, directly buried or in buried ducts. Ampacities are given forfour different shield resistances for each conductor size. For spaced cables, ampacities are also given for open-circuited shield operation. âEUR Trefoil -Three cables which have been installed in close contact and which may or may not have been bound together at the time of installation.
Số hiệu tiêu chuẩn
NEMA WC 50
Tên tiêu chuẩn
Ampacities Including Effect of Shield Losses for Single-Conductor Solid-Dielectric Power Cable, 15kV Through 69kV (Copper and Aluminum Conductors)
Ngày phát hành
1976-00-00
Từ khóa
Aluminium * Cables * Copper * Copper conductors * Current carrying capacity * Effect * Electric cables * Electric wires * Electrical engineering * Losses * Power cable * Shields * Single-conductor * Solid dielectrics