Cover retaining spring, with a positive and captive fit on the cover, when assembled, especially with non-slip covers, movement on the channel in a horizontal / vertical (150 N) direction is prevented, the cover retaining springs allow the cover to be opened on one side up to a maximum of 20 ° and thus enable additional subsequent installation or inspection of cables, for fastening - clip / clamp function - the cover to wall-mounted and free-standing riser cladding. Furthermore for heavy cable tray covers with and without checkered plate support as well as for angle-adjustable molded pieces 0 ° - 90 ° in the walk-in cable tray system. When fastening, ensure that a minimum distance of 50 mm to the start / end of the cover is maintained. The special shape / contour ensures potential equalization. Due to external influences, such as wind loads, use outdoors is only possible with additional security (self-tapping screws, steel band, etc.). for vertical cable tray cladding: STVW... STVWA... STVFA... for walkable cable trays: RDS... RDRS...-2.0 RDSRSL... RDSRS... for angle-adjustable fittings 0°-90°: RBAVDS... RBAVDSRS... Requirements: short cover pieces < 200 mm min. 2 cover retaining springs short cover pieces 200 - 1000 mm min. 4 cover retaining springs cover pieces 1000 mm min. 6 cover retaining springs Dimensions (approx. dimensions) Length L: 30 mm Material: steel, galvanized and passivated, top layer sealed