Introduction; General Safety Messages And Warnings; Installation; General - Eaton BG Technical Manual

1.0 Introduction

These manual fire alarm call points have been designed for
use in flammable atmospheres and harsh environmental
conditions . The GRP enclosures are suitable for use
offshore or onshore where light weight combined with a
high level of corrosion resistance
is required .
The units are available with the following options:
Lift flap
Duty label
Tag label
Earth Continuity via M5 internal/external earth stud and
gland earthing plate (Standard M4 Internal earth
stud removed)
LED (Encapsulated)
Resistors/Zener diodes (encapsulated)
Switches (two maximum)
M16 or M20 gland entries in a range of positions up to a
maximum of 4 per unit
Terminals up to 9 x 2 .5mm2 or up to 6 x 4 .0mm2
(all Exe rated)
Spring return or latching plunger (PBE units only)
Test key facility (BGE units only)

2.0 General safety messages and warnings

All instructions and safety messages in this manual must
be followed to allow safe installation of the device . The
device must only be installed and maintained by correctly
trained site personnel/installers .
I . To reduce the risk of ignition of hazardous
atmospheres and shock, do not apply power to the
device until installation has been completed and the
device is fully sealed and secured .
II . To reduce the risk of ignition of hazardous
atmospheres and shock, keep device tightly closed
when the circuit is energised .
III . Before removing the cover for installation or
maintenance, ensure that the power to the device
is isolated .
IV . Following installation, test the device to ensure
correct operation .
V . Following installation ensure a copy of this manual is
made available to all operating personnel .
VI . When installing the device, requirements for selection,
installation and operation should be referred to e .g .
IEE Wiring Regulations and the 'National Electrical
Code' in North America . Additional national and/or
local requirements may also apply .
VII . Cable termination should be in accordance with
specification applying to the required application .
MEDC recommends that all cables and cores should
be correctly identified . Please refer to the wiring
diagram provided with the unit .
VIII . Ensure that only the correct listed or certified cable
glands are used and that the assembly is shrouded
and correctly earthed .
IX . Ensure that only the correct listed or certified stopping
plugs are used to blank off unused gland entry points
and that the NEMA/IP rating of the unit is maintained .
X . MEDC recommend the use of a sealing compound
such as HYLOMAR PL32 on the threads of all glands
and stopping plugs in order to maintain the IP rating
of the unit .
XI . The internal earth terminal, where fitted, must be
used for the equipment grounding and the external
terminal, if available, is for a supplementary bonding
connection where local codes or authorities permit or
require such a connection .
XII . When installing the device, MEDC recommends the
use of stainless steel fasteners . Ensure that all nuts,
bolts and fixings are secure .
XIII . A suitable sealing washer must be fitted to all glands
and stopping plugs fitted into the enclosure .
XIV . The end user or installer shall ensure that this
equipment is protected against external influences
which could adversely affect the explosion protection,
or contact the manufacturer if in doubt of the
suitability of this equipment in the environment in
which it is to be installed .

3.0 Installation

General

The unit should be mounted on a vertical surface using the
four off Ø6mm fixing holes in the base . These have been
designed to accept and M5 screw or bolt . Note, the cover
assembly needs to be removed to access the unit fixing
holes .
MEDC recommend the use of stainless steel screws .

Access to terminals

Unscrew the 4 off M5 screws (4 .0mm A/F hexagon key)
holding the lid to the base . The cover screws are captive
and should be retained in the cover .
Gently remove the cover assembly from the base of the
enclosure . The cover assembly should remain attached to
the base by means of a retaining strap .
Once termination is complete, carefully replace the cover
assembly back onto the base avoiding damage to the
mating surfaces . Ensure that the retaining strap and wires
are not trapped between the mating surfaces and that the
o-ring is correctly seated in its groove . Ensure the retaining
strap and wires are clear of the microswitch actuator
and operating mechanism . Tighten the 4 off M5 screws
(4 .0mm A/F hexagon key) in the cover assembly evenly .
To maintain the IP rating of the unit, the recommended
torque on the cover screws is between 2 .5 - 3 .0Nm .
Call points BG/pB Ex E VErsions TM244 May 2019 www.eaton.com
Call points BG/PB Ex e Versions
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