Standard Requirements for Subsurface@ Vault@ and Pad-Mounted Load-Interrupter Switchgear and Fused Load-Interrupter Switchgear for Alternating Current Systems Up to 38 kV (:2001)
This standard applies to enclosed assemblies of single-phase and three-phase@ dead-front and live-front@ subsurface@ vault@ and pad-mounted load-interrupter switches with or without protective devices@ such as fuses or fault interrupters@ up to 38 kV rated maximum voltage.