Hints for the use of Ex d flameproof cable glands

For all users of Ex d cable gland, especially in the field of instrumentation it is worth to have a look at EN 60079-14. Here you will find a whole chapter about cable glands, line bushing etc for the connection of cables to Ex d enclosures.
The picture shows the criteria for the use of Ex d cable glands.
Most important for a lot of application maybe section 10.6.2 - b).
It is worth to prove whether this paragraph is fulfilled by your equipment and application or not.
Mostly the user must take care for the accordance to the standard. He will get an enclosure with a control system or an instrumentation device inside and a 'normal' cable gland. Now the user must take care the cable fulfils the requirement of the standard and it is more than 3m long.
The length is to avoid any flame path through the cable as described in note 1 of the text.
If you use cable glands with resin to do it on site you must take care how to do it to make sure that all potential flame paths between cable and resin and resin and gland are closed. This take a longer time and experience to make it right and safe.
The responsibility for doing it right is still at the end user who is doing the gland with the cable.

No problem shows the use of line bushings pre fabricated with resin hardened at ovens and approved as devices as Quintex is manufacturing.
The responsibility for being in accordance to the approval is totally at the manufacturer of the line bushing. If the line bushing is a approved as a device the application is simple and need no further approval by a test house.
The definition of line bushings are very simple. Just define the quantity of wires within the cables you need or the quantity of wires, define the n length of teh cable you need and maybe define the size of the line bushing based on this data or use a standardized one you normal use.
You will get a line bushing you can directly use without any additional work on site. Just screw it in or plug it to the enclosure, terminate the cable and its done.
If you don't know the needed length, define it longer or use terminal boxes to go on with the power or data cable to the non hazardous areas.

A lot of different build ups and possibilities of using different wires and cables make it easy to use this line bushing in all applications. Even Ethernet and glass fibre wires and cables are possible for data transfer from the Ex d enclosure.

Follow this link to find more information about our line bushings-->
http://www.quintex.eu/en/lb_function.html

If you need a line bushing you can also design and calculate most build up online on our web page.

We hope this hint to EN 60079-14 will help you for the decision what kind of
Ex d feed through is applicable for your device or control system.

More about all products and calculation tools you will find on our homepage.

Quintex GmbH manufactures and supplies material for trace heating (heating tapes, heating cables, controller, connection sets) and explosion protection ( Ex e terminal boxes, pressurized systems, line bushings,own range of local control function, local control stations - all can be specified and ordered online)
We manufacture all our material in our own approved (ATEX, ISO, FM, CSA...) facility.
By this we can guarantee our high level of quality, reliability and in time delivery.

Quintex GmbH
i_Park Tauberfranken 13
97922 Lauda-Koenigshofen
Germany
Phone.: +49 (0)9343 6130 0
Fax: +49 (0)9343 6130 105
www.quintex.eu/en

This release was published on openPR.