The Apparent Power draw of 6.2 VA per Fixture sounds correct for the Battery Charging Load of a "Normally Dark" Emergency Lighting Fixture.
The Lamp is not Illuminated until the Line Input has an outage, so the only Load connected during normal operation will be the Charging Circuit.
As such, the total connected Load for the (28) Emergency Lighting Fixtures will be:
6.2 VA * 28 = 173.6 VA (174 VA)...
174 VA = 1.45 Amps at 120 VAC
Figure in LCL, and the maximum demand Load will now be:
174 VA * 1.25 = 218 VA...
218 VA = 1.82 Amps at 120 VAC
Suggestion:
Unless Specifications or Code Article requires a Dedicated Emergency Lighting Circuit, connect the Emergency Lighting Fixtures to the same Branch Circuit(s) used for the General Lighting in the same area - with the EM Lighting connected at the Line Side of the Switches for the General Lighting
("Ahead Of" the Switches - i.e.: fed directly from the Branch Circuit Breaker at the Panelboard).
Do the same with the Exit Signage as well.
--Scott (EE)
