6
IQT3 manual – Section: Health and Safety
these actuators should be carried out in
accordance with the National Legislation
and Statutory Provisions relating to the
safe use of this equipment, applicable to
the site of installation.
For the UK:
Electricity at Work
Regulations 1989 and the guidance
given in the applicable edition of the
“IEE Wiring Regulations” should be
applied. Also the user should be fully
aware of his duties under the Health and
Safety Act 1974.
For the USA:
NFPA70, National Electrical
Code
®
is applicable.
For Canada:
CEC, Canadian Electrical
Code is applicable
The mechanical installation should be
carried out as outlined in this manual
and also in accordance with relevant
standards such as British Standard Codes
of Practice. If the actuator has nameplates
indicating that it is suitable for installation
in hazardous areas then the actuator may
be installed in Zone 1, Zone 21, Zone
2 and Zone 22 (or Div 1 or Div 2, class
I or Class II) classified hazardous area
locations only. It should not be installed in
hazardous area locations with an ignition
temperature less than 135 °C, unless
suitability for lower ignition temperatures
has been indicated on the actuator
nameplate.
It should only be installed in hazardous
area locations compatible with the gas
and dust groups stated on the nameplate.
The electrical installation, maintenance
and the use of the actuator should be
carried out in accordance with the code
of practice relevant for that particular
Hazardous Area certification.
No inspection or repair should be
undertaken unless it conforms to the
specific hazardous area certification
requirements. Under no circumstances
should any modification or alteration
be carried out on the actuator as this
could invalidate the actuators hazardous
area approval certification. Access to live
electrical conductors is forbidden in the
hazardous area unless this is done under
a special permit to work, otherwise
all power should be isolated and the
actuator moved to a non-hazardous area
for repair or attention.
WARNING: Service Altitude
The actuator installation altitude must
be restricted to less than 2000 m
as defined by IEC61010-1 (Safety
requirements for electrical equipment
for measurement, control and
laboratory use).
WARNING: Motor Temperature
Under normal operation the
temperature of actuator’s motor cover
surfaces can exceed 60 °C above
ambient.
WARNING: Surface Temperature
The installer/user must ensure that the
actuator surface temperature rating
is not influenced by external heating/
cooling effect (e.g. valve/pipeline
process temperatures).
WARNING: Thermostat Bypass
If the actuator is configured to bypass
the motor thermostat then the
hazardous area, low voltage directive
and CE certification will be invalidated.
Additional electrical hazards may occur
when using this configuration. The
user should ensure that any necessary
additional safety measures are
considered.
WARNING: Enclosure Materials
IQT range of actuators are
manufactured from aluminium alloy
with stainless steel fasteners and the
non-thrust bases are manufactured in
aluminium.
The cover window is toughened glass
which is retained with a 2-part silicone
cement and the battery plug will be
either stainless steel or PPS (Poly-
Phenolyne Sulfide).
The wireless aerial is made from
Polytetrafluoroethylene (PTFE).
The user must ensure that the
operating environment and any
materials surrounding the actuator
cannot lead to a reduction in the safe
use of, or the protection afforded
by, the actuator. Where appropriate
the user must ensure the actuator is
suitably protected against its operating
environment.
WARNING: Operating by Hand
With respect to handwheel operation
of Rotork electric actuators, refer to
section 4.1.
WARNING: Actuator may start
and operate when remote is
selected. This will be dependent on
remote control signal status and
actuator configuration.
