EGX-SF2
Installation Instructions
6
Isolated Ground Receptacle
This product incorporates an isolated ground receptacle,
identified by the orange triangle on its face. This feature may be
useful to reduce common noise in the connected equipment. Its
intended use is to reduce electrical noise (electromagnetic
interference) by purposely insulating the grounding circuit from
any metallic wiring system. The ground pin of the receptacle is
connected to the green/yellow wire and is isolated from the
metal mounting yoke of the receptacle. The accessible metal of
the product is connected to the green wire. If it is not desired to
use this feature, connect the green/yellow and green wires
together.
References
Application Guide for Isolated Ground Wiring Devices 2007.
National Electrical Manufacturers Association (NEMA)
IEEE Std 1100
™
-2005, “IEEE Recommended Practice for
Powering and Grounding Electronic Equipment” (Emerald
Book), Section 8.5.3.2.
IEEE Std 142™-2007, “IEEE Recommended Practice for
Grounding of Industrial and Commercial Power Systems”
(Green Book), Sections 5.5.1, 5.5.2.
NFPA-70, “National Electrical Code”, Article 250.146
Connecting Receptacle Grounding Terminal to Box.
•
(D) Isolated Ground Receptacles. Where installed
for the reduction of electrical noise (electromagnetic
interference) on the grounding circuit, a receptacle
in which the grounding terminal is purposefully
insulated from the receptacle mounting means shall
be permitted. The receptacle grounding terminal
shall be connected to an insulated equipment
grounding conductor run with the circuit conductors.
This equipment grounding conductor shall be
permitted to pass through one or more panel boards
without a connection to the panel board grounding
terminal bar as permitted in 408.40, Exception, so
as to terminate within the same building or structure
directly at an equipment grounding conductor
terminal of the applicable derived system or service.
Where installed in accordance with the provisions of
this section, this equipment grounding conductor
shall also be permitted to pass through boxes, wire
ways, or other enclosures without being connected
to such enclosures.
•
Informational Note: Use of an isolated equipment
grounding conductor does not relieve the
requirement for grounding the raceway system and
outlet box.
C22.2 No. 1, “Canadian Electrical Code, Part 1”, Rule 10-906
Bonding conductor connection to circuits and equipment.
•
(6) A bonding jumper shall be installed to connect
the bonding conductor to the grounding terminal of
a receptacle and in such a manner that
disconnection or removal of the receptacle will not
interfere with, or interrupt grounding continuity.
•
(7) In the case of metallically enclosed systems
where the grounding path is provided by the metal
enclosure, a bonding jumper shall be installed to
bond the grounding terminal of the receptacle to the
enclosure.
•
(8) Notwithstanding Sub-rules (6) and (7), the
bonding jumper, in the case of receptacles having
grounding terminals isolated from the mounting
strap required for special equipment, shall be
permitted to be extended directly back to the
distribution panel.
INSTALLATION
The EGX-SF2 is intended for use in installations where an
existing drywall finished wall or ceiling is present. It may only be
installed in 1/2” or 5/8” thick standard drywall using the old work
clips supplied. It may also be installed at a new work site
directly to wood or steel studs using new work clip. Proceed to
"New Work Clip" Section
to proceed with this installation.
NOTE:
The EGX-SF2 must be connected to a 15 Amp branch
circuit.
WARNING:
IMPROPER INSTALLATION CAN RESULT IN
DEATH OR SERIOUS PERSONAL INJURY! This accessory
should be installed by qualified personnel.
EGX-SF2 Site Preparation - Drywall/Ceiling
1.
Identify a suitable wall or ceiling location for the accessory.
WARNING:
ELECTRICAL SHOCK HAZARD!
CUTTING OR DRILLING INTO ELECTRICAL WIRES
OR CABLES CAN CAUSE DEATH OR SERIOUS
PERSONAL INJURY!
ALWAYS make certain area behind
mounting surfaces is free of electrical wires and cables
before cutting, drilling, or installing fasteners.
WARNING:
EXPLOSION AND FIRE HAZARD!
CUTTING OR DRILLING INTO GAS PLUMBING CAN
CAUSE DEATH OR SERIOUS PERSONAL INJURY!
ALWAYS make certain area behind mounting surfaces
is free of gas, water, waste, or any other plumbing
before cutting, drilling, or installing fasteners.
2.
Using a stud sensor, locate and mark studs.
NOTE:
EGX-SF2 is designed to fit in a drywall surface.
3.
Using housing as a template, draw pencil line completely
around housing.
4.
Measure the marked area and compare to the dimensions
shown in Figure 1. If measurements do not exceed the
maximum dimensions shown in Figure 1, continue to step 5.
If they do, adjust markings to match dimensions in Figure 1.
5.
Cut drywall on
outside
edge of line and remove.
Figure 1
EGX-SF2
4-1/2” MAX
(114mm)
4” MAX
(101.6mm)
CUTOUT AREA
MINIMUM CLEARANCE
TO STUD: 3/4”
