Arc Flash MV Switchgear
Arc Flash MV Switchgear
(OP)
For 5 kV switchgear, main or feeder breakers, I expected enclosure type to be Box. However, I am looking at a study where Open type was used, which gives a lower calculated incident energy. Has anyone seen something on this?






RE: Arc Flash MV Switchgear
RE: Arc Flash MV Switchgear
Keep in mind, I am not meaning utility switch yard equipment; you said "switchgear" which I interpret as being distribution equipment in a facility. Utility switch yards already have access restrictions and safeguards in place to limit exposure.
RE: Arc Flash MV Switchgear
RE: Arc Flash MV Switchgear
RE: Arc Flash MV Switchgear
However, some older facilities may have outdoor 5 kV breakers with exposed bus, etc. These could be considered "in air".
RE: Arc Flash MV Switchgear