Ventilated Cable Ladder Heat Dissipation 150mm-900mm Width Hot Dip Galvanized

Ventilated Cable Ladder Heat Dissipation is designed around one engineering fact: the current a cable can carry depends on how quickly heat leaves its surface. An open rung ladder with free air on all sides gives the best heat rejection of any support type, which allows higher loading on the same conductor size or a cooler cable at the same load.

The ladder is formed from carbon steel, stainless steel or aluminum with 150 mm to 900 mm width, 75 mm to 250 mm rail height and rung pitch of 225 mm, 300 mm or 450 mm, in 3 m and 6 m lengths with support spans from 1.5 m to 9 m. Coating options include hot dip galvanized, pre-galvanized and powder coated finishes.

Heat dissipation comes from the geometry: rungs support the cable at discrete points, leaving the majority of the cable surface exposed to air, so convection is not blocked by a solid tray bottom. In practice this can raise the derating factor by a meaningful margin compared with an enclosed route, and it reduces the temperature rise inside a dense bundle.

Ventilation also brings secondary benefits: water from washdown or sprinklers drains away instead of pooling against the cable sheath, dust does not accumulate in a channel, and thermal imaging surveys can see the cable rather than the tray, which makes preventive maintenance far more effective.

BENDIN produces ventilated ladder at up to 50000 m per week with 180 staff and thirty years of cable support manufacturing, exporting 60 to 70 percent of output to data centre, industrial and power contractors. Rung spacing, coating thickness and dimensional accuracy are checked on every batch.

Minimum order 100 m, 15 to 25 working day delivery, 20 to 50 USD per metre, carton, box or wooden case packing, terms L/C, D/P or T/T. Send the cable schedule, the ambient temperature and the installation method and we will confirm the ventilation assumption and the support spacing.

BENDIN holds ISO 9001 quality certification and issues CE Declarations of Conformity. The standards above state the design and test basis of this product; third party test reports or national approvals are supplied on request and are not implied unless confirmed in the contract.

Dimensions, rung spacing and surface treatment are produced to project drawings. Load and deflection calculations are issued for spans above 3 m.

• High current power cable routes
• Data centre and telecom power spines
• Industrial plants with heat constraints
• Substations and generator halls
• Tunnels and enclosed plant rooms

Q: How much does ventilation improve cable rating?
A: The gain depends on installation method, ambient temperature and grouping. We confirm the ventilation assumption so your derating calculation matches the actual support.

Q: Does it help with washdown and dust?
A: Yes. Water drains away instead of pooling against the sheath, dust does not collect in a channel, and thermal surveys can see the cable directly.

Q: Which coating for an outdoor substation?
A: Hot dip galvanizing to ISO 1461, with a duplex powder coat where a C5 atmosphere or a specific colour is required.

Q: What is the minimum order?
A: Minimum order 100 m, delivery 15 to 25 working days, prices from 20 to 50 USD per metre.