1. ATTENTION returning members. If you are coming here from the old forum for the first time, you will need to reset you password. However, we had an email problem getting password reset links set out to a lot of the email addresses. That problem is temporarily rectified but IF you still have an issue, email me direct at info@thebuildingcodeforum.com and I will give you a temporary password.
    Dismiss Notice
  2. Welcome to the new and improved Building Code Forum. We appreciate you being here and hope that you are getting the information that you need concerning all codes of the building trades. This is a free forum to the public due to the generosity of the Sawhorses, Corporate Supporters and Supporters who have upgraded their accounts. If you would like to have improved access to the forum please upgrade to Sawhorse by clicking here: Upgrades
    Dismiss Notice

Emergency generator off switch

Discussion in 'Electrical Codes' started by Rick18071, Jan 18, 2018.

  1. Rick18071

    Rick18071 Sawhorse

    Nov 28, 2009
    Likes Received:
    They want to put in a emergency off button that will turn off the emergency generator that runs the emergency lighting and fire alarms. This is in a very large building so this emergency button will be about 1,000 ft. from the generator, transfer switch and the main disco for the lighting (everything including the emergency systems will be on the emergency generator).

    2008 NEC 700.20 the switch or switches installed in emergency lighting circuits shall be arranged so that only authorized persons have control of emergency lighting.
    Exception 1: Where two or more single-throw switches are connected parallel to control a single circuit, at least one of these switches shall be accessible only to authorized persons.

    Since the main switch for the lighting will only be able to be used by an authorized person in a locked electrical room that means this emergency button can be anywhere where anyone can use it?

    But this button is not on the same circuit as the emergency lighting but is like a kill switch for the generator engine. Am I looking at the right place?
  2. cda

    cda Sawhorse

    Oct 19, 2009
    Likes Received:
    No emergency shut off also near the generator???
  3. steveray

    steveray Sawhorse

    Nov 25, 2009
    Likes Received:
    I would say it needs to be locked....Either in a room or in a panel or other enclosure to keep the idiots away....

Share This Page