Scame electrical solutions ADVANCE-GRP 16A Installation, Utilisation Et Entretien page 19

ADVANCE-GRP[GD]
5. INSTALLATION
Installation shall be carried out by suitably-trained personnel in accordance with the applicable code of
practice (e.g. IEC EN 60079-14) and the provisions of the national safety and accident prevention regulations
and this instruction manual.
5.1 SAFETY INSTRUCTIONS
Use the switch only for its intended purpose. Incorrect or impermissible use or noncompliance with these instructions invalidates
our warranty provision. No changes to the switch impairing its explosion protection are permitted. Fit and operate the switch only
if it is clean and undamaged.
The contact element must be replaced after each short-circuit in the switch main circuit. This is because the
device is hermetically sealed and the state of the switching contacts cannot be checked. Any damage can
invalidate the Ex protection.
5.2 ACCESSORIES
• Auxiliary Contacts type see topic 4.2.
• Earth-stud M6/M10 (stud, nuts and plain washer) made in brass,
iron or in stainless steel AISI 316
• Cable-glands and blanking-plugs with separate certificates.
Detail of optional earth-stud:
A BRASS OT58 OR INOX A2
B INOX A2
C
BRASS OT58 OR INOX A2
D
BRASS OT58 OR INOX 316L
E TINNED ELECTROLYTIC COPPER
Only approved and genuine SCAME accessories must be used.
5.3 TERMINAL FITTING
All wiring must be carried out in accordance with the code of practice and installation standards in hazardous areas like IEC EN
60079-14. Use the correct size of tool and torque (see manufacturer documents) for tightening the terminal clamps (screwdriver
or spanner).
Creepage and clearance distances shall comply with EN IEC 60079-7:2015/A1:2018 / ГОСТ Р МЭК 60079-7-2012 (table 1),
electrical parameters shall not exceed the maximum allowed.
Note: Minimum creepage and clearance distances that shall be maintained to conductive parts or other live parts are:
Minimum creepage
250 V
400 V
500 V
630 V
Note: Voltages are nominal voltages – the working voltage may exceed by 10% the voltage level given.
ADVANCE-GRP[GD]shall be subject to a routine dielectric streght test of 1000 V + 2U rms or 1500 V rms,
whichever is the greater applied for a period of 60 s as required by clause 6.1 of EN IEC 60079-7:2015+A1:2018
/ ГОСТ Р МЭК 60079-7-2012.
Alternatively, a test shall be carried out at 1.2 times the test voltage, but maintained for at least 100 ms.
MP39683
5 mm
8 mm
10 mm
12 mm
19
Minimum clearance
250 V
400 V
500 V
630 V
5 mm
6 mm
8 mm
10 mm
ZP90904-6