Who is qualified to shut down critical operations power systems at a prison in Calfornia?
What is the rest of the question
We are installing 2.5 MW of solar power at a prison. Our point of interconnection is on the 12kV circuit serving the prison. This circuit has to be de-energized to facilitate our work, but believe it will make the prison vulnerable. I'd think the prison would be the responsible party, but cannot locate any documentation, or rulings for this type of work. Is there any code that governs this practice?
Seems like the contract or point of contact would be the go to.
So will you be shutting down power inside the prison ??
All or just some circuits???
Maybe start here
Doing Business with CDCR - Office of Business Services (OBS)
Seems like there would be a lot of people involved, depending on how much power you would need to kill
I usually hate to make assumptions, but I would expect a prison to have a backup generator on site to guard against utility power interruptions. Generally backup power generators would be on the utilization voltage of the facility, 480-3 phase possibly. Either way the generator would be isolated from the 12kv utility power feed. So in my mind, not really knowing the specifics, I would think that you could perform your work without severely impacting the prison.
Having worked with the institutions; there are back up power systems at he institution. They have two primary feeds and multiple legs. Critical communication and security operation have back up power. Each leg can isolated for repairs and to work on transformers and systems. The project manager should have already contacted the Chief of plant operations and that person can get the right plan in place.
Thank you for taking the time to respond to my question. As things have progressed the prison's plant supervisor said the shut down was up to us. To my surprise they did not want to take responsibility for the shutdown, so we are to rely upon their facility drawings to de-energize. Though they were warned the drawings were old and/or that the system could have updated, and/or not installed precisely to the SLD.
Nice, I guess when you release the cell locks..... They might be interested
The locks are manual and not electric for that reason. There are gang released but those all exit to a yard with gun rails all around them. Many institutions also now have lethal electric fences with their own power supply and a generator back up. Do you feel Lucky?
10/02/2019 - California Gov. Gavin Newsom signed legislation to tighten the rules for utility power shutoffs.
In my opinion, the State of California has the ultimate authority to shut down power to California prisons.
The utility public safety shut downs are very different from the power shut down of a prison. Can the Governor shut one down, yes but with 34 adult correctional institutions and a dozen youth or other location, it's not his top priority. He appoints the prison warden to deal with those day to day operations.
Question says who is "qualified" - not who is authorized. I'm qualified to shut down prisons in California. The answer to the question is Nick Sasso.
Good catch Nick. I should have posed the question using authorized, not qualified. It seems to me that a prison would be guided by law or code restricting who can de-energize the primary loop serving it. The maintenance contracts issued to hi-voltage contractors are visited every 1-3 years, and new companies, personnel not uniquely familiar with the site, are given the reigns.
We've done our due diligence, but if the SLD and site drawings were not properly managed over time, then critical operations could be taken down. Would it pose a threat, probably not, but it does make the financial risks more difficult to mitigate.
Sorry Nick, I took the connotation in Jeff's post as who is authorized. The prison in the acute mental hospital's prison I used to survey for the Life Safety Code compliance had policies and procedures for the maintenance and operation of the essential electrical systems. The facility had full authority as delegation by the Governor to maintain and operation of the prison. The campus of the hospital and its prison did have it own generating system that powered the entire campus in addition to utility power. The electrical distribution in the campus was state owned and operated.
Retrieving data ...