| 摘要 |
FIELD: electricity.SUBSTANCE: cable tray contains inserts of specific design between the lid and side walls of the tray.EFFECT: increasing quantity of cables and trays in the tray without laying of new parallel trays or installation of a bigger tray; reducing own costs for new cable and wires laying; reducing number of trays and PVC or aluminium for their use.15 cl, 3 dwg |
