When a ship is on shore power, is anyone familiar with the standard practice for providing an Earth Connection? ABS talks about a requirement as does DNV. The requirement is vague (just says an earth terminal/connection is required) and I’ve never actually seen one on the ships that I’ve...
We have several electro-mechanical actuators with fail safe brakes which release using the solenoid. If the solenoid doesn’t release the brake, the actuator won’t work and hatches/doors won’t open. I’d like to find a way to monitor the solenoid coil when the actuators are not in use....they sit...
Does anyone have experience setting up a system which monitors a solenoid valve’s health? I have a situation where the solenoid will sit unused for long periods of time but we need some reassurance that it will operate when power is applied.
I have been attempting to use MS Project to track my hours spent on a job, remaining work, percent complete, etc. I was recently asked to start tracking the earned value data as well....So, I saved a baseline, loaded labor rates and got some good data. The problem is, my ACWP does not agree...
I'm finalizing a design for a simple household electrical component. I assumed NFPA 70 was the applicable code but it seems to only apply to household wiring and actual equipment installations. Is there a code or standard for the actual equipment design and wiring?
I have a PLC with several inputs to various field devices with open/closed contacts such as limit switches and proximity switches. For some time now, I've been trying to figure out a way to detect a faulted or broken control wire to one of these devices. To me, the PLC would see would see...
