System Overview
9
New Construction
Control and power circuit wiring must be in accordance with Class 1 wiring methods as specified
in the NEC. Class 1 circuits are permitted to be installed with other power circuits that are
functionally associated:
725.48 (B) (1): “Class 1 circuits and power-supply circuits shall be permitted to occupy the
same cable, enclosure, or raceway only where the equipment powered is functionally
associated.”
Renovation
For renovation installations, the output of the ArcLamp driver is reclassified as a Class 1 circuit.
The image below shows an example of a typical retrofit system installation.
ArcLamps
in existing
fixture
DMX in
120V in
wiring between luminaire
and power supply
National Electric Code (NEC) specifies the following for Class 1 installations:
•
725.130 (A) Wiring Methods and Materials on Load Side of the Class 2 or Class 3
Power Source: Class 2 and Class 3 circuits shall be permitted to be reclassified and
installed as Class 1 circuits if the Class 2 and Class 3 markings required in 725.124 are
eliminated and the entire circuit is installed using the wiring methods and materials in
accordance with Part II, Class 1 circuits.
All wiring methods must be in accordance with Class 1 control circuits in the NEC. Class 1
circuits are permitted to be installed with other power circuits that are functionally associated:
•
725.48 (B) (1): “Class 1 circuits and power-supply circuits shall be permitted to occupy
the same cable, enclosure, or raceway only where the equipment powered is
functionally associated.”
Following these NEC specifications for renovation installations, ArcLamp circuits are permitted
to share the same containment as other house lighting circuits since they are functionally
associated.
Note:
ArcLamp System circuits may only share the same containment as other house
lighting circuits.
If the ArcLamp circuit must share the same containment as non-functionally associated
circuits, separate multiconductor Type AC, Type MC, Type MI, or Type TC cables must
be used, and all conductors in the cables must be insulated at 600V or greater
according to NEC 725.48 (B)(4)(2).
Note:
These retrofit kits can include certified emergency lighting equipment (such as
an emergency LED driver) that has been investigated and found to comply with the
requirements of ANSI/UL 924, Emergency Lighting and Power Equipment. When
installed per the kit instructions, the converted luminaire is eligible to serve as part of a
facility’s emergency lighting system in accordance with ANSI/NFPA 101, Life Safety
Code, Article 700 of ANSI/NFPA 70, National Electrical Code, and the International
Building Code.