PE conductor in Instrument tray
PE conductor in Instrument tray
(OP)
Hi all,
With reference to an offshore project (IEC design), please inform if it is allowed to run PE (Protective Earth)Conductor on an Instrumentation cable Tray. The electrical power system is a 415V solidly earthed. The installation is an Instrumentation Technical room where it is required to run the PE conductor and also Instrument earthing conductor (IE)for eathing various instrumentation, SCADA penels etc. But there is no dedicated electrical cable tray available.
Thanks,
With reference to an offshore project (IEC design), please inform if it is allowed to run PE (Protective Earth)Conductor on an Instrumentation cable Tray. The electrical power system is a 415V solidly earthed. The installation is an Instrumentation Technical room where it is required to run the PE conductor and also Instrument earthing conductor (IE)for eathing various instrumentation, SCADA penels etc. But there is no dedicated electrical cable tray available.
Thanks,






RE: PE conductor in Instrument tray
RE: PE conductor in Instrument tray
Bill
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"Why not the best?"
Jimmy Carter
RE: PE conductor in Instrument tray
The grounding conductor is for grounding Instrument equipment (DCS, Fire & Fas Panel etc.).
Actually, a single core, 70 sq.mm. cable (EPR Insulated) runs across the room. Individual grounding conductor (16 sq.mm, EPR )from each Inst. Equipment is connected to this 70 sq.mm. cable.
A largest breaker that may trip in the event of earth fault is 32 Amps.
Now, could this 70 sq.mm grounding cable be run on the Instrument tray together with other Instrument cables?