Do the cable trays meet the requirements for electrical continuity?

The tray system is designed to provide good interconnection when joining individual trays. This is achieved with a fixed connection using special NSM 6X10 screws.

The claim is based on the test report concerning cable routes and cable ladders classed under to ČSN EN 61537 standard pursuant to Article 6.3.2 as cable routes with the characteristics of electrical continuity to ensure protective bonding and ground connection. Under to Article 11.1.2, an AC current of 25 ± 1 A with a frequency of 50 Hz to 60 Hz is fed along the length of the test samples. The test performed under this article was compliant. Impedance on the circuit board is less than 50 Mω. The cable trays and cable ladders were also found to be compliant during the test.