cramporian
Electrical
- Jun 7, 2012
- 1
Hello,
I am a Project Engineer with a background in E&I design for offshore installations. I am currently working at a small engineering firm and we produce offshore (topsides) equipment. We are looking to update some of the electrical drawings and I have been having some discussions with our manufacturing manager as to how we go about ferruling our cores and numbering the terminals in our JB.
We have the following equipment:
A main feeder panel which has a terminal rail numbered as per the wire numbers in the panel.
A Junction Box (supplied pre-wired to the motors/thermistors and local control station mounted on the equipment)
My previous experience would suggest to me we should number the terminals in the junction box in numerical order and the ferruling would be based on the core colour/number followed by the terminal number (i.e RD/1; BE/2 etc...)
The other view is that all cores relating to the panel should be ferruled with the wire number at the panel to allow the offshore electrician to fault find at the local control panel and motors by using the panel schematic. It has also been suggested that we number the terminals in the JB based on the panel wire number for the same reason.
Has anyone got any thoughts on the matter?
I am a Project Engineer with a background in E&I design for offshore installations. I am currently working at a small engineering firm and we produce offshore (topsides) equipment. We are looking to update some of the electrical drawings and I have been having some discussions with our manufacturing manager as to how we go about ferruling our cores and numbering the terminals in our JB.
We have the following equipment:
A main feeder panel which has a terminal rail numbered as per the wire numbers in the panel.
A Junction Box (supplied pre-wired to the motors/thermistors and local control station mounted on the equipment)
My previous experience would suggest to me we should number the terminals in the junction box in numerical order and the ferruling would be based on the core colour/number followed by the terminal number (i.e RD/1; BE/2 etc...)
The other view is that all cores relating to the panel should be ferruled with the wire number at the panel to allow the offshore electrician to fault find at the local control panel and motors by using the panel schematic. It has also been suggested that we number the terminals in the JB based on the panel wire number for the same reason.
Has anyone got any thoughts on the matter?
