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ADVANCE-GRP Series
ENGLISH
THIS DOCUMENT MUST BE READ CAREFULLY BEFORE INSTALLATION
These instructions are intended for: expert electricians or appropriately trained personnel.
1. Safety information
The interlocked sockets of the ADVANCE-GRP series are used for fixed installations in environments with a potential
risk of explosion identified as Zone 22.
These instructions for installation, use and maintenance must be kept in a safe location for future reference. During
operation or maintenance work on the apparatus, do not leave this manual or other objects inside the enclosure.
Use the ADVANCE-GRP series interlocked sockets for their approved use only, and keep them completely intact
and clean. The interlocked sockets have been designed to withstand shocks of 7 J and to be used under normal
vibration conditions. They have not been designed for use in environments subject to extreme vibrations.
The enclosure is made of fibreglass-reinforced polyester.
The protection mode cannot be guaranteed if the product is installed incorrectly.
Use only original spare parts supplied by SCAME.
No modification/work is permitted on the interlocked sockets unless specifically indicated in this manual.
DO NOT OPEN THE ENERGISED ENCLOSURE IN PRESENCE OF AN EXPLOSIVE ATMOSPHERE
Always follow the national safety rules and the safety instructions contained in this manual whenever working
on the interlocked socket.
2. Compliance with standards
The interlocked sockets of the ADVANCE-GRP series are intended for use in: Zone 22. (EN60079-0:2012+A1:
2013, EN60079-31:2014)
They have been manufactured and tested using the best and most modern production techniques according to
ISO 9001 quality standards.
3. Technical data
3.1 Type of Ex-protection
: II 3D Ex tc IIIC T95°C Dc IP66
Ta -25/+60°C
Year XXXX: Year of manufacture.
Product suited for use in an explosive atmosphere.
II: Product classified as belonging to group II, installable in environments not in mines.
3D: Product classified as belonging to category 3 for areas containing dust (D). The product can be installed in
Zone 22.
Ex tc: Product classified as type tc according to standard EN 60079-31 and intended for areas with a potentially
explosive atmosphere due to the presence of combustible dust.
IIIC: Equipment classified as group IIIC, product suited to be used in presence of conductive dust.
T90°C: Maximum surface temperature.
Dc: EPL for combustible dust.
Ta -25/+60°C: Allowed room temperature range, present at the installation site.
3.2 Special conditions of use (see instruction sheet)
Mechanical risk 7J.
3.3 Degree of protection of the interlocked socket IP66
3.4 Power supply terminal: connecting cables and tightening torques (see table 1)
Terminal section:
stranded, from 50 mm
2
to 95 mm
flexible, from 50 mm
2
to 70 mm
Maximum tolerated current density 3.6 A/mm
2
.
4. Installation
The equipment must be installed by qualified and duly trained staff, as required by applicable law. The
plant engineering standards for environments classified as potentially explosive due to the presence of
combustible dust (EN60079-14, EN60079-17 and any other national regulations/standards). Follow the
rules of conduct generally accepted for the installation of electrical material, including national safety guidelines
and the safety instructions in this manual, whenever you are operating the unit. Before opening the lid of the
interlocked socket, wait 15 minutes after having cut off voltage supply.
Before you open the cover of the interlocked socket, make sure the atmosphere is not dangerous, or always cut
out the power supply and wait 30 minutes.
4.1 Safety instructions
The IP protection level of the interlocked socket must be ensured by using appropriate cableglands and gaskets, as
well as by diligently following the installation standards and instructions. When other certified components are
assembled onto the interlocked socket, the user must take into consideration any other restriction imposed by their
respective instructions.
The equipment used to drill holes into the interlocked socket must be suitable for the material (reinforced polyester
with glass fiber), being careful to comply with the limit speed and not to damage the walls. The holes must be drilled
in the area outlined on each wall (see Fig. 3) and must be flawless, without imperfections. Holes can only be drilled
in walls having a thickness of at least 5.7 mm and are not suitable for being threaded.
The holes to feed in the cables must be drilled as instructed in this manual. The cableglands are usually assembled
before installing the socket.
Store the interlocked socket in a warehouse inside its original package, so as to protect it from filtering dust or
moisture: only remove the interlocked socket from the package when you plan to install it.
The interlocked socket must be installed intact and without any damage.
The interlocked sockets must be installed so that any piled up dust does not seep into the socket, with or without its
plug connected. To lower this risk to a minimum, if you have accidentally forgotten to close the lid when connecting
or disconnecting the socket, assemble and place it at an angle no more than 45° wide compared to the vertical axis,
with its opening facing the floor.
Instructions for correct installation of the interlocked socket:
1) Read the Instructions for installation, use and maintenance regarding the interlocked socket.
2) Using the fastening dimensions shown in Figure 1, mark the positions of the fastening holes on the installation wall.
3) Drill the fastening holes on the installation wall and thread the holes (if required).
4) Remove the interlocked socket from the package and check that it has not been damaged during transport.
5) Check that the cover and base are clean and free of defects.
6) Remove the plate with all the internal elements fixed to it from the base of the interlocked socket.
7) Place the base of the interlocked socket in the assembly position on the installation wall, using any assistance
necessary in order to prevent accidents.
8) Fasten the apparatus by repeating the following operations for each fastening hole:
a) Insert the clamping screw into the fastening hole;
b) Tighten the bolt (if the hole is a through-hole) or tighten the clamping screw completely.
9) Check that the fastening is secure.
10)Proceed with the assembly of the cable glands (if not preassembled) following the manufacturer' s instructions.
11)Insert the plate with all the internal elements fixed to it into the base of the interlocked socket.
12)Insert the cables in the apparatus, being careful to secure the amour of the cables (if applicable).
13)Proceed with the wiring according to the wiring diagram issued to the installer.
Before closing the interlocked socket:
14)Check that all foreign materials have been removed from inside the interlocked socket: do not leave these
instructions inside.
15)Check that the gaskets are intact and installed properly.
16)Close the cover by tightening the screws appropriately in order to guarantee the IP degree of protection. The
MP36503
2
;
2
.
tightening torque of the screws is 2.5 Nm.
17)Store these instructions in a safe location for future reference.
4.2 Included accessories
The accessories supplied with the socket must be assembled before installing it, following the instructions provided
in their manuals.
A) Microswitch kit to check plug presence (Art. 579.0125)
Only use original accessories approved by SCAME.
4.3 Wiring of the terminals
The wiring must be carried out up to standard. Use only properly sized equipment to perform the wiring.
Each terminal can host a single conductor, unless several conductors have been joined previously in a suitable
manner. The electrical cables must have insulation suited for the voltage.
Unused terminals must be tightened completely.
4.4 Protection – Earthing
The interlocked sockets must be connected to protection/earthing circuits in compliance with the system' s installation
rules. The internal earthing terminal will have to be connected to an equipotential protection or earthing circuit before
powering the apparatus.
4.5 Components
Only use original spare parts.
Components incorporated in the system or original spare parts must be installed by appropriately trained staff.
4.6 Drillable areas
If you drill holes in the areas shown in Fig. 4, be sure to follow the minimum distances, diameters and the maximum
number of holes listed in Table 4 (Clearance).
4.7 Cable glands
Only use ATEX-certified cable-glands that are suitable
for the substances, temperature and installation site
(marked II 3D Ex tc IIIC with minimum protection
IP66). Make sure that the chosen cable-glands are
suitable for the cables, so as to prevent them from
loosening off and to ensure a permanent seal against
filtering humidity and dust.
Any unused cable inputs that are open must be sealed with ATEX-certified caps that are suitable
to the substances, temperature and installation site (marked II 3D Ex tc IIIC with minimum
protection IP66).
• To install the cable-glands (ATEX certified separately), follow the manufacturer' s instructions.
Hole size
M cable
PG cable
(GLAND)
gland
gland
a
nominal size
nominal size
(mm)
25
26
32
33
40
41
50
51
63
64
21
29
29
37,5
36
47,5
42
54,5
48
60
Table 4 – Cable glands
5. Use and maintenance
Inspection and maintenance on these interlocked sockets must be performed to the state of the art by
appropriately trained staff, in accordance with plant engineering and maintenance standards that apply to
environments classified as potentially explosive due to the presence of combustible dust (EN 60079-14, EN 60079-
19, or other national regulations/standards). During routine maintenance, always check that the components that
contribute to the system' s level of protection, especially the gaskets. This system must be repaired by appropriately
trained staff to the state of the art, therefore only at the premises of SCAME PARRE S.p.A.
5.1 Plugs
Only use ATEX-certified plugs, minimum Ex tc IIIC, suitable for use in areas 22 with protection level IP66.
5.2 Lock to be used
For correct locking of the handle in "0" or "1" position use lock with Ø 6,3mm arc.
5.3 Socket cover
If the plug is not inserted, the cover of the interlocked socket must be kept completely screwed on.
5.4 Incorporated protection devices
- On the versions with fuse holder bases, the front opening for the control, maintenance and replacement of fuses
must be made in the absence of a potentially explosive atmosphere and with the system disconnected. If the
fuses need to be changed, use NH00 type fuses.
- On the versions with automatic circuit breaker, the switch must be reset, in case of intervention, by rotating the
knob of the interlocked socket anticlockwise until the complete reset of the automatic circuit breaker, then it is
possible to close the switch in the clockwise direction.
5.5 Routine maintenance
Routine maintenance is necessary in order to guarantee proper operation and preservation of the interlocked socket' s
degree of protection.
1)Check that the gasket is intact each time the enclosure is opened.
2)Check that the closing screws are all.
in position and well-tightened each time the enclosure is closed.
3)Check that the screws/bolts fastening the enclosure to the wall are well-tightened and free of corrosion every year.
4)Check the seal of the cable glands every year.
5)Check for any damage to the enclosure every year.
6)Check that the screw terminals are tightened as indicated by the manufacturer.
7)In environments with the presence of combustible dust, the surface of the enclosure' s top wall must be cleaned
periodically, preventing the deposited dust from reaching a thickness of more than 5 mm.
5.6 Chemical aggression
The interlocked sockets of the ADVANCE-GRP series are made using:
- fibreglass-reinforced polyester for the base and cover of the main enclosure;
- thermoplastic alloy (PC-XILOXANE) for the socket cover and ring nut;
- silicon rubber for the base-cover gasket, knob gasket and any test buttons;
- EPDM rubber for the socket cover gasket.
The environment in which the interlocked sockets will be installed must be considered carefully in order to determine
the sustainability of these materials in the presence of chemical agents or corrosive atmospheres.
5.7 Disposal
The product must be disposed of in compliance with national rules on the disposal and recycling of industrial waste.
4
Top side A
Bottom side B
W1 x D1 (mm)
W2 x D2 (mm)
196x72
72x72
Table 3; Fig. 3 – Drillable area
Minimum
distance
Top Side
Bottom Side
(CLEARANCE)
(A)
(B)
b (mm)
46
5
5
56
4
4
70
3
2
78
2
2
88
2
2
46
5
5
56
3
2
70
2
2
78
2
2
88
2
2
Fig. 4 – Cable gland size and minimum distance
A
B
B
a
GLAND
b
CLEARANCE
ZP90747 7
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