Range of cable trays in insulating material, with perforated or non perforated base, which provides greater electrical safety for people and for the installation.
Protection against indirect contacts
No earthing required.
No equipotential bonding is needed.
Without transmission of dangerous currents.
Possible sources of fire are reduced
No possibility of short circuit due to contact of damaged phases with the cable tray.
Maintenance-free
Does not require maintenance for earthing nor corrosion.
Insulating material: maximum electrical safety
Impact test acc./IEC 61537 at the minimum declared temperature.
Unex designs its cable trays to avoid impact damage at their lowest declared temperature (-20ºC).
| Impact resistance | Minimum temperature |
|---|---|
| 20J* | -20ºC |
*Except sizes 60x75: (5 J) and 60x100: (10 J).
Impact test acc./EN 50085-1.
Unex insulating cable tray with cover, by complying with the European Standard EN 50085-2-1, is considered a protecting enclosure (trunking).
Impact test for trunkings: IK10 (with cover fixing).
The raw material assures excellent behaviour in front of corrosion; this feature is inherent, it is not achieved by applying a coating to the final product.
Therefore, the corrosion protection remains unchanged:
According to Cable tray standard IEC 61537:2007 resistance to humid and saline corrosion, Unex insulating materials "are inherently resistant to corrosion and do not require testing."
Unex insulating cable trays are designed to assure a good protection against the UV rays:
Unex insulating cable trays are designed to absorb linear expansion. The “d” distance between two lengths varies depending on the difference between the maximum temperature and the installation temperature.
Separation between lengths | |
T (ºC) | d (mm) |
20 | 5 |
30 | 7 |
40 | 9 |
50 | 11 |
T = Tmax. - Tinst. | |
Unex cable tray passes the flammability and flame-propagation tests included in IEC 61537 with the best classification required from organic materials.
Glow-wire test IEC 61537
Test measuring the material's flammability by overheating a conductor.
Non-flame propagating IEC 61537
Test measuring flame spread caused by electrical ignition sources.
Flammability test UL94: V0 (thickness of the material tested: 2.5 mm).
No heat propagation
As a result of the low thermal conductivity of insulating materials, no hot spots are generated away from the fire source.
Discover the applications in which you can use our Insulating cable tray 66 in both indoor and outdoor installations.
Increase in the overall safety of the installation. For safety Unex has designed the cable tray to:
