Difference between perforated tray bridge and non-perforated tray bridge

1 The tray cable trough without holes refers to the trough cable trough with no cooling holes at the bottom, which is also commonly known as trough cable trough. Its characteristic is totally enclosed, which can effectively prevent mosquitoes, mice and ants from entering the cable tray and causing damage to the cable. It is the most commonly used cable tray at present.

2. Tray-type cable tray with holes refers to the trough-type cable tray with cooling holes at the bottom of the cable tray. It is generally called tray cable tray, because there are cooling holes at the bottom, which is characterized by better cooling effect as the name suggests. Because the bottom hole is easy for water vapor to enter in humid environment, it is common to design it in some indoor dry places with certain requirements for heat dissipation.

The above two types of bridge are common cable bridge types in transmission and distribution lines, which are widely used in residential, shopping malls, schools, hospitals, hotels, industrial plants and other fields.