Perforated cable tray is a kind of cable tray with holes on bottom sheet and side rails for laying power and signal cables for the purpose of distributing electricity, signaling in industrial plants, department stores, gyms, hospitals, airports and other industries. Compared with the channel cable tray, the perforated cable tray has holes on the bottom to help ventilate the cables.
Stainless Steel perforated Cable Trays provides stronger support for wire cables than common welded wire mesh cable trays and wire ways. Hutaib Electricals offers perforated cable trays (Welded type Perforated Cable Trays, Bolt and Nut Perforated type Cable Trays). The solid metal cable trays are made from punched perforated stainless steel or galvanized carbon steel plates. The holes can be round, square or triangle for ventilation, in various opening sizes and plate thickness. Stainless steel perforated cable trays are rust resistant and suitable for outdoor telecommunication uses.
Perforated cable trays are manufactured for the smooth and easy pulling of cable from one point to another. Hutaib Electricals have designed cable trays by taking care of cable loads and practical site problems. Wherever possible all fitting are made of state of art single piece construction. Slotting Patterns are in such a way that it enables the easy cutting and joining at any point without drilling at site. Design allows greater cable filling capacity and smooth turning at bends
● Strong structure for carrying all types of cables.
● Perforated cable trays have holes on bottom to provide enough ventilation and position for cable lines.
● Anti-corrosion, fire, moisture due to the pre-galvanized, hot-dipped powder coated, epoxy coated finish.
● Excellent heat dispersion.
● Safe and smooth edge protects cable lines from scratch.
● Strong enough to withstand short circuits.
● Flexible, easy and quick installation
● Available in various accessories to fix and install
● Easy to maintain.
● Long life span.
Several types of Tray are used in different applications. A solid bottom tray provides the maximum protection to cables, but requires cutting the tray or using fittings to enter or exit cables. A deep, solid enclosure for cables is called a cable channel or cable trough. A ventilated tray has openings in the bottom of the tray, allowing some air circulation around the cables, water drainage & allowing some dust to fall through the tray. Small cables may exit the tray through the ventilation openings, which may be either slots or holes punched in the bottom.
A Ladder tray has the cable supported by a traverse bar, similarly to the rungs of a ladder, at
regular intervals on the order of 4 to 12 inches ( 100 to 300 mm) & width of the ladder 100
mm to 1000 mm.
Ladder cable tray & ventilated trays may have solid covers to protect cables from falling objects, dust & water. Tray covers for use outdoors or in dusty locations may have peaked shape to shed debris including dust, ice or snow. Large power cables laid in the tray may require support blocks to maintain spacing between conductors to prevent overheating of the wires. Smaller cables may be laid unsecured in horizontal trays, or secured with cable ties to the bottom of vertically mounted trays.
To maintain support of cables at changes of elevation or direction of a tray, a large number of
specialized cable tray fittings are made compatible with each style & manufacturer.
Horizontal elbows change direction of a tray in the same plane as the bottom of the tray & are
made 30,45 & 90 degrees forms, inside & outside elbows are for changes perpendicular to the
tray bottom. These can be in various shapes including tees & crosses. Some adjustable
elbows useful for field-fitting a tray around Obstacles or around irregular shapes. Various
clamping, supporting & splicing accessories are used with the cable tray to provide a
complete functional tray system. For example – Different sizes of cable tray used within one
run can be connected with reducers.