INSTRUCTION SHEET
SPECIAL INSTRUCTIONS FOR PROPER USE OF TEMPORARY LIGHTING
2252-11060
NEC
Temporary lighting is described in Article 590 of the
National Electrical Code, which provides:
Feeders shall originate in an approved distribution center.
Conductors shall be permitted within cable assemblies;
or cords or cables of a type identied in table 400-4 for
hard usage or extra hard usage. Where the voltage does
not exceed 150 volts to ground and where not subject to
physical damage, feeders shall be permitted to be run as
open conductors supported on insulators at intervals of not
more than 10 feet (3.05 meters). No open wiring branch
circuit conductors shall be laid on the oor or ground.
Receptacles on construction sites shall not be installed on
branch circuits which supply temporary lighting.
Suitable disconnecting switches or plug connectors shall
be installed to permit the disconnection of all ungrounded
conductors of each temporary circuit.
All lamps for general illumination shall be protected from
accidental contact or breakage by a suitable xture or
lampholder with a guard.
All 125 volt, single phase, 15, 20 & 30 Ampere receptacle
outlets which are not part of the permanent wiring of
the building or structure and which are used by personnel
shall have ground-fault circuit-interrupter protection for
personnel.
Table 310-17 ampacity of single insulated conductors
rated 0 through 2000 volts in free air based on ambient
air temperature of 30 degrees Centigrade (86 degrees
Fahrenheit). Wire size AWG 14 type TW or THHN the
overcurrent protection shall not exceed 15 Ampere.
OSHA
Temporary lighting is described in the Code of Federal
Register Title 29, Part 1926, which provides:
Feeders shall originate in a distribution center. Where
not subject to physical damage they may be run as open
conductors on insulators not more than 10 feet (3.05
meters) apart.
Branch circuits shall originate in a power outlet or
panelboard. All conductors shall be protected by over
current devices at their ampacity. Runs of open conductors
shall be located where the conductors will not be subject
to physical damage and the conductors shall be fastened
at intervals not exceeding 10 feet (3.05meters). No branch
circuit conductors shall be laid on the oor.
Receptacles for uses other than temporary lighting shall
not be installed on branch circuits which supply temporary
lighting.
Disconnecting switches or plug connectors shall be
installed to permit the disconnection of all ungrounded
conductors of each temporary circuit.
All lamps for general illumination shall be protected from
accidental contact or breakage.
Temporary lights shall not be suspended by their electrical
cords unless cords and lights rare designed for this means
of suspension.
Note
Please avoid using
the SHORT 100 Watt
Rough Service bulbs
in String-O-Lights as
they can generate excessive heat that may
cause plastic guard
and/or socket failure.
SHORT A19 LAMP STANDARD A19 LAMP STANDARD A23 LAMP
Typical range of acceptable
bulb sizes, A23, A21, A19
Note
20-200 Watts
EGS Electrical Group • 888.832.0660 • www.mcgillelectrical.com Rev. C 8/9/10
McGill String-O-Lights Ratings:
The sockets are medium base, weatherproof type and rated for 200 Watts.
Each socket is provided with a closed loop hanger to provide support for each socket and
cage without any strain on the conductor wires. McGill P/N 2251, 110 feet messenger wire
is recommended for use in supporting the entire assembly.
Handle the String-O-Lights with care during installation to avoid damage to the product.
String-O-Lights should be inspected on a regular basis to assure that no damage has
occurred to them. Check to determine that all connections are correct an no bare metal
or wire is exposed which may cause bodily injury through electrical shock.
Open Conductors Models:
The wire conductors ar 14AWG wire and are rated 25 Amperes in free air.
The total String is rated 2000 Watts. NOTE: NEC limits 14 AWG wire to 15 Amperes (1800
Watts) overload protection.
Corded Models:
Maximum wattage is 1500 Watts for 14-2 or 14-3 versions.
Maximum wattage is 2000 Watts for 12-2 or 12-3 versions.
EGS Electrical Group • 888.832.0660 • www.mcgillelectrical.comRev. C 8/9/10
Loading...