Republic of the Philippines
City of Iloilo
TECHNICAL INSTITUTE OF ILOILO CITY
MOLO CAMPUS
M.H del Pilar St., Molo, Iloilo City
Email: tiicmolocampusic@yahoo.com Tel. No. (033) 337-6711
LESSON 3: Installing Auxiliary Terminal Cabinets
Performing Roughing-In Activities, Wiring and Cabling Works for Single-Phase Distribution, Power, Lighting
Course:
and Auxiliary Systems
Book: LESSON 3: Installing Auxiliary Terminal Cabinets
Printed
Rekhnor Magbanua
by:
Table of contents
Introduction
TOPIC 1: Mounting and Installation of Wire Gutter
TOPIC 2: Mounting and Installation of Electrical Pull Box
TOPIC 3: Mounting and Installation of Fire Alarm Control Panel
TOPIC 4: Mounting and Installation of CCTV Server Cabinet
TOPIC 5: Mounting and Installation Utility and Junction Boxes
Introduction
Terminal boxes and cabinets provide the location for wires' connection or termination from the power
source to the electrical device. Each type of auxiliary terminal box or cabinet has its own function that
depends on the location where it will be installed and what kind of device will be used on it. Some
types also require a specific installation location based on the set guidelines.
This lesson discusses the different types of auxiliary terminal cabinets, their use, and their installation
process.
TOPIC 1: Mounting and Installation of Wire Gutter
A wire gutter is an enclosure made from sheet metal that provides additional wiring spaces at meter
centers, distribution centers, switchboards, and similar points of wiring systems. The enclosure has
hinged or removable covers to contain and protect electrical wires, cables, and busbars.
PEC/NEC Requirements in Using Wire Gutters
Substantial Construction - gutters must be substantial construction and must have a complete
enclosure for the contained conductors. Interior and exterior surfaces must be suitably
protected from corrosion.
Smooth rounded edges - there must be suitable bushing shields or fittings that have smooth
rounded edges so that the conductor insulation will not be scraped when the conductors pass
between gutters through partitions, around bends, between gutters and cabinets or junction
boxes, and at other locations where necessary.
Outdoor use - auxiliary gutter installed in a wet location must be rain-tight construction.
Grounding - grounding must abide by the provisions of Article 250.
TOPIC 2: Mounting and Installation of Electrical Pull Box
TOPIC 3: Mounting and Installation of Fire Alarm Control Panel
A fire alarm control panel or FACP is a system of devices that uses a fire alarm control unit to
produce an alarm signal in the premises to notify the occupants of the presence of fire so that they can
evacuate immediately.
FACP Requirements
The fire alarm control panel must be placed in an enclosed room, i.e. mechanical, riser room,
etc. The Fire Department must first approve of the location of the panel.
The fire alarm control panel or a remote annunciator must be placed at the main entrance or at
an approved location.
The panel identification with the correct circuit number must be indicated on the fire alarm
panel. The electrical panel must be permanently marked with an "Alarm Panel" next to the
circuit.
Fire Alarm Control Panel must be provided with primary and secondary power sources, and
backup battery.
TOPIC 4: Mounting and Installation of CCTV Server Cabinet
CCTV or closed-circuit television uses video cameras to transmit a signal to a specific place, on a
limited set of monitors.
PEC and Building Code Requirements
CCTV equipment, DVRs or 791 VCRs, in 792 must follow the manufacturer instructions for
installation.
Combination Raceways
o The different systems must be run in separate compartments and identified by stamping,
imprinting or color-coding of the interior finish if a combination surface nonmetallic
raceways are utilized in signaling and lighting power circuits.
Different system in one raceways or traveling cable
o Optical fiber cables and conductors for operating devices, operation and motion control,
power, signaling, fire alarm, lighting heating, and air conditioning circuits must have 600
volts or less to be allowed to run in the same traveling cable or raceway system should
all conductors be insulated for the maximum voltage applied to any conductor within the
cables or raceway system and all live parts of the equipment be insulated from the
ground for this maximum voltage.
Interior Installation – Transmitting Stations / Clearance from other Conductors
o There must be a distance of at least 100 mm for all conductors inside the building from
the conductors of any electric light, power, or signaling circuit.
TOPIC 5: Mounting and Installation Utility and Junction Boxes
