Bartec TNBCD Series User manual

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USER MANUAL
TNBCD Ex d Component Certified Enclosure
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Explosion proof enclosures
TNBCD …

Scope :
USER MANUAL
TNBCD Ex d Component Certified Enclosure
Date:
01.09.2022
Ver.:
3
QA Code:
5
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The TNBCD range of Ex d enclosures are rugged and designed for harsh environment
like:
•Oil and gas industry
•Chemical industry
•Pharmaceutical
•Industry
•Agribusiness
They are designed for use in potentially explosive atmospheres and certified according to the
requirements of the ATEX Directive and IECEx.
Marking
Ex db IIB Gb
Ex tb IIIC IP66/67/68 Db
Tamb: -50°C ≤Ta ≤+60°C
IP rating: IP66/67/68 – 0,4 bar, 2 hours according to EN/IEC 60529
The enclosures listed in this manual are certified:
II 2 G/D
The certificate numbers are :
Nemko 03ATEX264U, Issue No. : 3
IECEx NEM 10.0003U, Issue No. : 3
They are made in accordance with the following standards:
Zones due to gases, vapors and fumes
EN 60079-0 : 2018 IEC 60079-0 : 2017
EN 60079-1 : 2014/AC :2018-09 IEC 60079-1 : 2014
Zones for dusts
EN 60079-31 : 2014 IEC 60079-31: 2013

Scope :
USER MANUAL
TNBCD Ex d Component Certified Enclosure
Date:
01.09.2022
Ver.:
3
QA Code:
5
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Description
Our TNBCD range of explosion proof enclosures is available in many sizes. They are made
of welded or casted and machined acid resistant stainless steel 316L. Each enclosure is
expected to receive electrical components inside, making service and maintenance easy.
They can also be customized to meet each individual specific need. If necessary, multiple
enclosures can be assembled on a frame with or without combined Ex e junction boxes.
The enclosures are delivered with Ex Component certificate (U-certificate) to be used
as basis for further certification of an Ex Equipment or Protective System.
Optional solutions for the enclosures:
•one or more certified Ex e connection boxes on any side of the enclosure
•internal hinges
•glass window(s) in lid, wall(s) and / or bottom of enclosure
•threaded hole(s) in lid, wall(s) and / or bottom side of enclosure
•maximum number of entries is 18, maximum thread size is M120, description given
on drawing BCD-40-3. The table for cable entries in the section below also describes
what is allowed
Type Code:
TNBCD XX YY ZZ
XX: Dimension of box, width in cm, 19 to 57
YY: Dimension of box, height in cm, 19 to 57
ZZ: Dimension of box, depth in cm, max 38
Enclosure type/Maximum window aperture diameter / rectangle:
•2625xx 65/100 mm 100x100x15 mm (in lid)
•3233xx 65/100 mm 170x170x15 mm (in lid)
•4535xx 65/100/154 mm 290x200x21 mm (in lid)
•5738xx 65/100/154 mm 364x230x21 mm (in lid)
Material: CD = Stainless Steel AISI 316L
Meaning of symbols
This symbol means a hazard and precaution to be taken
Safety instructions
The device must be completed, installed, used and maintained in accordance with the
following standards:
•IEC/EN 60079-0 (Explosive atmospheres - Part 0:
Equipment - General
requirements )
•IEC/EN 60079-1 (Explosive atmospheres - Part 1: Equipment protection by
flameproof enclosures "d")
•IEC/EN 60079-14 (Explosive atmospheres - Part 14: Electrical installations design,
selection and erection)

Scope :
USER MANUAL
TNBCD Ex d Component Certified Enclosure
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01.09.2022
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•IEC/EN 60079-17 (Explosive atmospheres - Part 17: Electrical installations inspection
and maintenance)
•IEC/EN 60079-31 (Explosive atmospheres - Part 31: Equipment dust ignition
protection by enclosure "t")
•Decrees, orders, laws, directives, circulars, applications, standards, state of art and
other documentation relating to its installation site
It is forbidden to change anything without the prior written consent of Bartec
Technor unless the enclosure undergoes a full Equipment certification at a Notified
Body/Certifying Body.
We cannot accept any responsibility for failure to observe these regulations:
•Make sure of the compatibility between the information on the nameplate, the
explosive atmosphere present, the area of use and ambient temperatures on surfaces
•Any damage on the device can cause the explosion-proof protection to become
ineffective
•The installation of the enclosure must be done in the state of the art in the technical
domains and only by qualified, competent and empowered personnel
•A defective or abnormal use as well as the noncompliance with the instructions of the
present document exclude any clause of guarantee and do not engage our
responsibility
•The use of the device in case of excessive deposits of dusts superior at 50mm
according to EN / IEC 60079-31 is not authorized
•Liability for manufacturer traceability is ensured only at the first known delivery
destination (serial number specified on the certification label)
•It is also required to observe the regulations of the country of use
•The doors of the TNBCD enclosures are relatively heavy, to avoid sagging of the
doors, potentially making the door not align with the flange of the enclosure, the doors
shall be closed and secured during any moving and shifting of the enclosures. It is
also strongly advisable to close and secure the doors when the daily working shift is
over
•The flame paths of the doors and of the flanges of the enclosures must be well
protected whilst work is performed and ongoing inside the enclosures
Transport, storage
•Check it the product has been damaged during transport. If any damage is observed,
do the statutory reserves to the carrier
•Do not put damaged products into service
Packaging
Location storage
Duration storage
Open In a covered location, clean (without contact with
external substances) and closed with temperature a
constant humidity (-40°C < T < +70°C). Shielded from
important temperature variations
2 years and more with regular inspection (cleanliness
and mechanical damage)

Scope :
USER MANUAL
TNBCD Ex d Component Certified Enclosure
Date:
01.09.2022
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Putting into service
•Verify that the information on the label of the product is in accordance with the
permissible conditions for the Ex area of the site of use (Group II: Surface Industries -
Category 2: high level of protection for ATEX G = for Gas / D = for Dust, IECEx EPL -
G = for Gas / D = for Dusts - IPxx: IP rating (waterproofness for solids and liquids)
•Check if there is a specific position of mounting
•Do not open the lid before the enclosure is securely fastened. Also check if the
enclosure has been equipped with hinges
•The wiring of the cable conductors must be made with a particular care
•Not to exceed the authorized maximal temperature appropriate cables must be
selected and take particular care installing them
•Follow the instructions contained in the specifications
Before starting
•Make sure the unit has been correctly settled and not damaged
•The device may include any foreign body and no part is damaged
•The cable gland must be tightened (see description of the gland torque)
Maintenance
The maintenance and repairs work on devices must be made only by authorized and
trained persons for that purpose.
Before any work the devices must be switched off. In addition:
•Prevent and avoid any formation of layers of dusts: make a periodic cleaning with a
wet cloth
•Do not take apart the command and control units (push buttons, pilot light, etc.)
It is advisable that the following checks must be made at least once a year:
•The external equipment and surfaces must not be damaged
•The cable entries and blanking plugs must be securely fastened
•Prior to closing, check the cleanliness of the flame path (machined part of the cover in
contact the machined part of the box). Grease these 2 parts with a grease resistant to
oxidation (acid free white vaseline)
• Screw the cover on the box using the original stainless steel bolts DIN 912 / ISO 4762
M12x25 A4-80. Ensure that the bolts are clean and are greased (grease like Gleitmo
165). Ensure that all the bolts are fitted. Torque the bolts to 65 Nm, max 75 Nm. After
torqueing the bolts, check with a shim of 15/100 mm all around the flame path that the
shim cannot penetrate the flame path. Its non-penetration on full perimeter is the
insurance of the conformity of the product with the standards

Scope :
USER MANUAL
TNBCD Ex d Component Certified Enclosure
Date:
01.09.2022
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5
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Technical features

Scope :
USER MANUAL
TNBCD Ex d Component Certified Enclosure
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Number of cable entries:
•Any type of cable or conduit entry certified Ex d can be used and installed according
to EN / IEC 60079-14
•Different types of threads can be used but minimum five threads by bolt must always
be engaged
Enclosure type Max thread area
(removed surface) Metric threaded holes
Dimension Area
TNBCD2 XX31 83,0 cm
2
M20 3,1 cm
2
TNBCD26XX31 83,0 cm
2
M2 4,9 cm
2
TNBCD32XX21 124, cm
2
M32 8,0 cm
2
TNBCD33XX21 124, cm
2
M40 12,6 cm
2
TNBCD3 XX3 207,0 cm
2
M 0 19,6 cm
2
TNBCD4 XX3 207,0 cm
2
M63 31,1 cm
2
TNBCD38XX3 249,0 cm
2
M7 44,1 cm
2
TNBCD 7XX3 249,0 cm
2
M120 113 cm
2
Condition of Certification and Schedule of Limitations:
1. It´s only allowed for the manufacturer to make the finished mounting of the enclosures in
accordance with Technical Note 53-BCD-5 “Specification for the completion of TNBCD
enclosures”
2. When viewing windows are mounted the temperature of the cementing resp. window shall
not exceed:
•Enclosure with window type 195 and cementing DP190, according to drawing
CDX-75-5: -50°C to 90°C
•Enclosure with window according to drawing BCD-55-4: -20°C to 70°C
•For other windows the temperature on the cementing/window shall not exceed
-20°C to 90°C
3. Certification with Tamb -50°C is limited to enclosure up to TNBCD 573835 with lid of
stainless steel and with window type 195 according to drawing CDX-75-4
4. IP67 and IP68 - 0.4 bar 2 h only for TNBCD without lamp globe, push buttons and
windows according to drawing BCD47-02-4, with gasket according to drawing BCD-14-4
(internal lid gasket).
5. The maximum number of entries are 18, maximum thread size is M120, description given
on drawing BCD-40-3. The table for cable entries in the section above also shows what is
allowed
6. Rotating machines or other devices which create turbulence shall not be incorporated
7. Oil-filled circuit breakers and contactors shall not be used
8. IECEx Certified and tested components that are built into the enclosure’s walls need to
fulfill the requirements of types of explosion protection used as well as the IP level shown
on the type label
9. Bartec Technor’s Type TNCN/TNCC Ex e junction box may be used for indirect cable
entry

Scope :
USER MANUAL
TNBCD Ex d Component Certified Enclosure
Date:
01.09.2022
Ver.:
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10. The Maximum dissipated power in the TNBCD enclosures must follow values in the
manufacturer’s power dissipation tables
11. Calculations of inner and surface temperatures must be performed by program:
TempCalc-sm Rev. 1
12. The Manufacturer has to ensure all maximum temperatures of equipment used inside or
in the enclosure walls are lower than it’s maximal Tamb
13. Repairs on flame-proof joints can only be done by Bartec Technor
14. Routine tests:
Due to a welded construction routine test has to be done with minimum of 12 bar on
each type/variant. Minimum 14.9 bar on each -50°C product
15. No high-pressure water to be applied in the connection between lid and enclosure
The content of the TNBCD enclosures may be placed in any arrangement provided that
an area of at least:
•- 20 % of each cross-sectional area remains free for gas group IIB
Dismantling, taking out of service:
When removing the enclosure and taking it out of
service, the same precautions apply as those observed
when mounting the enclosure.
The enclosure with its content must be handled
according to the WEEE (Waste Electrical and
Electronic Equipment) Directive, 2012/19/EU.