For the typical electrical room or electrical closet where there is perhaps one or even a few panels doors can swing into the room.
Electrical panel door swing.
Swing handle keyed cam locks.
In stock and ready to ship.
The nec does have provisions for 1200 amps or more and is covered in 110 26 in the 2011 edition.
Prevent an electrical hazard the free ends of the conductors must be insulated to prevent the exposed end of the conductor from touching energized parts.
Where equipment rated 1200 a or more that contains overcurrent devices switching devices or control devices is installed and there is a personnel door s intended for entrance to and egress from the working space less than 7 6 m 25 ft from the nearest edge of the working space the door s shall open in the direction of egress and be.
Figure 110 11 author s comment.
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Entrance for panel more than 1200 amp and over 1 8 m wide one entrance required for working space not less than 610 mm wide and 2 0 m high personal door for panel more than 1200 amp personnel door s intended for entrance to and egress from the working space less than 7 6 m from the nearest edge of the working space.
Access panel apw67 1 6 x 7 flush mount removable paintable with child resistant latch drywall access door panel for plumbing electrical utilities white.
In every case the width depth and height of the working space around electrical equipment must allow all equipment doors or hinged panels to open at least 90 degrees.
Updates to working space clearance around electrical equipment according to nec 2017.
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See the definition of energized in article 100.
This requirement can be met by the use of an insu lated twist on or push on wire connector.