Nexans OJC - Offshore High Voltage Junction Chambers For Wind Power Projects. Nexans Offshore Junction Chambers (OJC) are designed to improve revenue streams for offshore wind power developments - the offshore junction chamber is used as a disconnecting point for internal tower cable to external subsea array cables. This can be used as a demarcation point between tower / transition piece / array cable related parties. Nexans OJC can provide a convenient test point and can help with the earlier generation of power to help create revenue sooner. The marine grade stainless steel chamber is specifically suitable to be installed in severe offshore conditions. The split cable gland plates allow to use pre-terminated and tested jumpers, reducing the installation time and increasing the quality of the cable installation.

1. OJC
Offshore Junction Chamber
Tel: +44 (0)191 490 1547
Fax: +44 (0)191 477 5371
Email: northernsales@thorneandderrick.co.uk
Website: www.cablejoints.co.uk
www.thorneanderrick.co.uk

2. OJC
OFFSHORE JUNCTION CHAMBER
For offshore wind power parks,
the offshore junction chamber
will be used as a connecting
point for internal tower cable to
external subsea arrays cables.
Technical characteristics
• Sheet materials: marine grade
316L stainless steel and A2/A4
grade fittings.
• Robust design with IP66
degree of protection (BS EN
60529:1992).
• Short circuit tested acc. to
DIN VDE 0278-626-1(HD
629.1 S2:2006 + A1:2008):
2009-07: Thermal short-circuit
25kA/1s, Dynamic short-circuit
62.5 kA.
Design
Offshore junction chamber
comprising:
1. Aluminium bushing support
plate for feed through
bushings.
2. Access panel for 2 x array
cable connection.
3. Split gland plate
incorporating 9 feed
through sealed glands.
4. Access panel for turbine
connection.
5. Earth bar on insulated
standoffs.
6. Chamber secured by 4 x
M16 internal base fixings.
Bolts not supplied.
7. Different connector and
surge arrester combinations
are possible.
8. Cable cleats arrangement
for 9 single core cables.
9. Channels for mounting
external accessories.
10. Lifting eyes
Up to 42 kV
630 A
PART OF OUR
WINDLINK®
PRODUCT RANGE
1
10
7
9
4
2
8
5
3
Offshore Junction
chamber type
Voltage
Um
(kV)
Outer dimensions of
chamber
(w x d x h)(mm)
Fixing points
OJC1
42
700 x 811 x 1194
4 x M16
* to be verified according to cable cleat specification
2
6
Conductor sizes
(mm2)*
min
max
50
630
10/2013 • Nexans Network solutions N.V. - Div. Euromold
10/201
Application

3. Benefits
• The chamber design is specifically suitable to be installed in the transition piece of the tower.
• High accessibility for ease of installation.
• Ideal test and demarcation point.
• Possible use of pre-terminated and tested jumpers to tower equipment.
• Time saving.
• Reducing cost of installation.
Dimensions
811
600
20
1135
1194
530
in mm.
680
660
Separable connectors
Extension to larger cable sizes and additional array cables possible. Please contact our
representative for more details.
Spare room at turbine connection to add surge arresters to protect tower equipment from high
voltage surges. See catalogue pages for more details.
M95.240
Junction chamber can be equipped with different connector combinations. See possible
arrangements and catalogue pages for more details.
Preterminated and tested jumpers to connect junction chambre with tower equipment.
Chamber options
Earthing kit to facilitate earthing of the chamber while array out of service. Please contact our
representative for more details.
Mechanical key interlock to add additional security level against accidental opening. Please contact
our representative for more details.
Current transformer package. Please contact our representative for more details.
3

4. POSSIBLE ARRANGEMENTS
430TB
484TB
Nexans Power Accessories Ltd • sales@nexansdirect.com 1547
Tel: +44 (0)191 490
Nexans Network Solutions - div. Euromold • sales.euromold@nexans.com
Fax: +44 (0)191 477 5371
4
Email: northernsales@thorneandderrick.co.uk
Website: www.cablejoints.co.uk
www.thorneanderrick.co.uk
10/2013 • Nexans Network solutions N.V. - Div. Euromold
10/201
300SA or
800SA
Combined with surge
arrester: 300SA or 800SA
484TB
484TB
804PB
484TB+804PB+484TB
484TB+804PB+430TB
804PB
430TB
430TB
300PB
430TB+300PB+430TB