Operating instructions
1. Product description
The PSB type 27-1680-..10/.... Ex heating system with the
PSB (type 07-5801....) self-limiting parallel heating tape, assembled
with a connection and remote end termination system (installation kit
05-0091-0130 and/or 05-0091-0136) in cold connection technology, is
set up as a stationary resistance heating system for pipelines or containers
in hazardous areas. It is used in Zones 1, 2 or Zone 21 according to the
certified explosion group II and temperature classes T5/T6.
After assembly the supply wires and the twisted protective braid of the
heating tape are always connected to terminals in an enclosure with
„increased safety“ protection class (in conformance to the relevant
standards EN 60079-0 and EN 60079-7).
3. Safety Instructions
The relevant installation and operating regulations must be
observed for electrical systems in hazardous areas (e.g. Directive
1999/92/EC, Directive 94/9EC, EN 60079-14, EN 61241-14 and the
DIN VDE 0100 series).
The requirements under EN 60519-1 and EN 60519-2 must be
adhered to.
Thermal Safety Class 0 under EN 60519-2 Section 13 is met by the heating
tape’s design characteristics.
The Cu braid with a resistance of < 18.2 Ω/Km is suitable as a protective
conductor.
To protect against indirect contact, conductive parts from other firms must
be included in the (protective conductor) safety measures. For each electric
circuit it is necessary to have a residual-current circuit-breaker and a
means of isolating all outer wires from the current supply.
The operator of an electrical system in a hazardous environment has to
keep the equipment in an orderly condition, operate it correctly, monitor
it and do the required maintenance and repairs.
(EN 60079-14, EN 60079-17, EN 60079-19 and EN 61241-14).
4. Assembly of heating circuits
The specifications in the EC Type Examination Certificate and in the
installation instructions must be observed. The data in Installation
Instruction for the heating tape must be observed also.
Do not connect the heating tape’s two supply wires – short circuit!
2. Technical data
Rated voltage
110 to 120 V or 208 to 254 V
Rated current
max. 32 A
Referenced rated capacity
max. 33 W/m at 10°C
Explosion protection
Ex protection type
II 2G Ex e II T5, T6
II 2D Ex tD A21 IP65 T 95 °C, T 80 °C
Certification
KEMA 08 ATEX 0111
IECEx KEM 09.0084
Conformity to standards:
EN 60079-0: 2006, EN 60079-7: 2007, EN 60079-30-1:
2007, EN 61241-0: 2006, EN 61241-1: 2004
Minimum bending radius
25 mm
Max. permissible process temperature
(applies to heating tape with remote end termination)
+65°C when the heating tape is switched on
+80°C when the heating tape is switched off
cumulative 1,000 h
Ambient temperature range
-55°C to +55°C
Min. cut-in temperature
-40 °C
5.a) Assembly
The relevant installation and operating regulations must be observed when
setting up or operating explosion-protected systems (e.g. EN60079-14,
EN 60079-30-2 and the DIN VDE 0100 series).
The heating tape must be installed on the workpiece in accordance with
the project engineering specifications. Only qualified specialists may do
any of the work on the machine. Before any work is done on the machine,
it must have come to a complete stop, be disconnected and precautions
must be taken to ensure that it cannot be switched on again.
Before and during installation: keep the ends and connection components
of the heating system dry. The metallic braiding in this heating system
must be connected to a suitable earthing terminal.
!! The bending radius may not be less than the minimum of 25 mm and
the heating tape may not be bent on its narrow side.
The heating tape is attached to the workpiece by means of temperature-
resistant adhesive tape with a max. spacing of 200 mm!! Use only
plasticiser-free adhesive tapes (no PVC adhesive tapes)!
To ensure efficient heat transmission, the heating tape must have even
contact over the entire length of the surface. If necessary, the distances
between fastenings must be reduced. The tape is laid on
Reservation
Technical data subject to change without notice. Changes, errors and misprints may not be used as a basis for any claim for damages.
