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Home » Technical guide » Fire resistance - E30 E90

Fire resistance - E30 E90

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Safety is a major concern for everyone, but can only be achieved with knowledge of how electrical equipment behaves in the event of a fire. CABLOFIL® has been successfully tested and proven to meet all fire-safety requirements.


The German standard serves as a reference. There is still no European standard on fire resistance specifically for cable trays. The German standard specifies that the entire system of cable trays, accessories and cables must be tested in an oven which is at least 3 m long for a period of 30, 60 or 90 minutes at temperatures of up to 1000°C.

Period Certification
> 30 minutes E 30
> 60 minutes E 60
> 90 minutes E 90

The test aims to verify whether the electrical system is working properly and make sure that sources of critical data (emergency lighting, ventilators, emergency exit, fire alarm, etc.) can resist long enough to provide assistance in the event of a fire.


The IBMB (Institut für Baustoffe, Massivbau & Brandschutz) and FIRES laboratories are recognised centres for testing and issuing the associated certificates. They ensure that the test conditions described in the standard DIN 4102-12 are observed.


CABLOFIL standard products passed the tests without the need to develop an extensive or specific range. The configurations used by CABLOFIL involve wire cable trays with two different spans (1250 mm and 1500 mm) subject to a maximum permissible load of between 2 kg/m and 20 kg/m. The increase in temperature follows the temperature curves (ETK) defined by DIN 4102-12.

The E90 test does not in itself validate a wire cable tray, but validate the combination of CABLOFIL with a specific type of cable. This underlines the complexity, as well as the relevance, of these tests, which have already been passed by a number of cable types. Cables are tested in pairs.

The surprising appearence of the cable tray after the test is quite normal. The mechanical properties of the cables and cable tray are impaired but they achieved their objective: to ensure the durability of the installation for a given period.

Before test   During test   After test

CABLOFIL is certified to E90 for a number of configurations that meet the requirements of data transfer facilities designed to ensure the protection of property and people in the event of a fire.

Below are 9 representative samples of the more than 20 configurations tested.