F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
F21V21/36—Hoisting or lowering devices, e.g. for maintenance
F21V21/38—Hoisting or lowering devices, e.g. for maintenance with a cable
Landscapes
Engineering & Computer Science
(AREA)
General Engineering & Computer Science
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Refuge Islands, Traffic Blockers, Or Guard Fence
(AREA)