offshore wind turbine operations & maintenance · pdf filesenvion mm82 ge xle 1.6 vensys...
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Offshore Wind Turbine Operations &
Maintenance Solutions
Limpet® - partnering with leading turbine OEMs onshore
Senvion MM82 GE XLE 1.6 Siemens SWT-2.3-93 Vensys 1.5
Limpet® - Next Generation Climb Assist
Limpet® Technology – New Product Development
Climb assist & fall
prevention for use
onshore.
Climb assist, fall
prevention, work
positioning, rescue and
evacuation for use offshore.
Climb assist, fall prevention,
work positioning, rescue and
evacuation for onshore
applications.
Designed for heave
compensated hoisting of heavy
loads (multiple personnel/
materials) offshore.
Limpet® M5 – Development & Certification
Limpet® M5 based on L5 Design but
with “higher-spec” components and
sealing plus additional corrosion
protection measures.
• 1000 hours salt mist test
• Accelerated life testing on custom test
rig simulates 20+ years of service life
conducted under supervision of GL
• GL Certified April 2014 - Technical file
review (PPE and MD certificates,
reports, risk assessments,
maintenance schedules etc.) plus
8000 cycle rope test
Limpet®: One Product – Multiple Functions
Climb Assist/ Lift
Personnel Hoist
Rescue & Evac Kit
Fall Arrest System
Rope Access
Limpet® M5, a new class of offshore product designed to replace multiple
height safety and access systems and processes.
Limpet® M5 Offshore – Multiple use-cases
Heave compensated
materials/ personnel
hoist & evacuation
Personnel safety
system for boat
access & egress
Blade & monopile
inspection/ repair
system
Hoist rescue system
for monopile and/ or
main tower
A single Limpet M5 positioned
appropriately on the WTG
gantry can solve multiple
access and safety problems
and save huge expense for
offshore wind farm operators
Limpet® M5 – Offshore Trial with MVOW at Thanet
Specially fabricated base unit
secured to gantry grating.
Using WTG mains supply
Limpet® - Reduces Need for Technical Rope Skills
Wire anchor strops of pre-determined length clipped straight into anchors to avoid requirement for knots & reduce dependence on IRATA level 3
Injured but
conscious
Unconscious/
Incapacitated
Unconscious &
primary line fails
Unconscious &
power fails
Self-Rescue via RF
remote
Buddy rescue via
HID control
Manual unwind.
UPS option
Rescue hub used
to lower 2nd line
Limpet® Improves time to Rescue
Remote rescue means rapid
recovery with a single button press.
Reduced risk as no need for
rescuer to go to height.
Limpet® - New Solutions to Offshore WTG problems
Limpet working with clients to produce
technical solutions to WTG access
issues e.g. Base Section corrosion
repair
• Limpet position (yellow) and top
pulley (red) gives access to regions
around the WTG
• Limpet® unit installed on ladder
supports access, egress and work
positioning during maintenance
Limpet® M5 - Technical Specifications
Technical Specifications
Dimensions 658 x 506 x 403mm (L X W X H)
Unit Weight 63kg in normal configuration
Safety Line Materials Dyneema® core with option of para-aramid
(very good thermal resistance) or polyester (very
good UV resistance) sheath both with MBL of
41.7kN
Safety Line Capacity 130m (with 7mm safety line)
Unit Materials Pain system to ISO 12944 C5-M/ Norsok M-
501. Stainless steel and nylon components
Power Requirements 220 – 240V, AC, 16A, 50/60Hz single phase
Operating Temperature -40 to +54 C (per requirements of ANSI
Z359.14)
Control Cabled and wireless remote control (IP67)
User Weight (Min – Max) 40kg – 140kg
Main Features Active Motion Technology™ (equivalent to wave
heave compensation)
Intelligent Climb Assist® (up to 90% user
weight)
Proactive Fall Prevention™
Rapid Remote Rescue
Clip & Go Evacuation
Precise Work Positioning and Personnel Hoist
Manual Override to ANSI Z359.14 SRL-R
Fails to safe
Black box data recorder
Button-less start mode
Configurable UPS back up power supply
25+ year design life
Technical Specifications
Integrated Safety Factor Static load safety factor of 15x maximum user
weight
Hoist Speed 0.3m/s (140kg) – 0.5m/s (90kg)
Acceleration ~2.5m/sec
Descent Speed 0.5 – 1.2m/s
Mounting Multiple mounting options
No. of Users Multiple users when integrated with Limpet line
return system. Two man simultaneous descent
Certification CE marked under the Machineries Directive
2006/42/EC
CE marked under the PPE Directive 89/686/EEC
Test Standards Limpet Test Standard 001:2009 which includes
requirements from standards ANSI Z359,
CSAZ259.2.2, EN360, EN341, EN353-1, EN364,
EN1496 and others
PPE Test Highlights Fully compliant with HSE 08 Type Test
10km continuous descent test with 140kg test
weight
22kN Static Load Test
Dynamic Ultimate Strength Test – 136kg test
weight and 1.2m drop
Arrest forces negligible in dynamic performance
test
Deceleration negligible in dynamic performance
test
Negligible vertical displacement in dynamic fall
test
Ingress Protection Rating IP66, Connectors IP67
Service Interval Annual maintenance service or every 60,000 drum
revolutions, whichever is sooner
Pioneering World Class Height Safety & Industrial Access Solutions
Questions?
www.limpettechnology.com
+44 (0) 131 551 2727