An equipment isolation switch assembly (200) for use in a remote isolation system (10) for isolating an equipment item (20,21) comprising an equipment isolation switch (400) movable between a first position (NORMAL) in which said equipment item (20,21) is energized by an energy source (30) and a second isolated position (ISOLATE) in which said equipment item (20,21) is isolated from said energy source (30) and an actuating device (500) co-operable with the equipment isolation switch (400) to move it between said first and second positions wherein said isolation switch assembly (200) includes at least one securing means (291,405) for securing said actuating device (500) in co-operation with said equipment isolation switch (400) whenever in operative state.
H01H 9/24 - Interlocking, locking, or latching mechanisms for interlocking two or more parts of the mechanism for operating contacts
H01H 27/00 - Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
H01H 27/08 - Key inserted and then turned to effect operation of the switch wherein the key cannot be removed until the switch is returned to its original position
2.
A REMOTE ISOLATION SYSTEM AND MOBILE DEVICE FOR USE IN THE REMOTE ISOLATION SYSTEM
A remote isolation system (10) for a plant comprising equipment (20, 21) energisable by an energy source (30) and a control system (50, 260) enabling automated isolation of the equipment (20, 21) from said energy source (30) to an isolated state when authorised by the control system (50, 260), wherein said control system (50, 260) enables remote isolation of the equipment (20, 21) by one or more mobile isolation device(s) (120) provided as part of the remote isolation system (10) and configured to request the control system (50, 260) to authorise equipment (20, 21) isolation.
G05B 19/406 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by monitoring or safety
patents
