122
GUIDELINES FOR IMPLEMENTATION OF EN 13852-1 ON EXISTING OFFSHORE CRANES ON MOBILE OFFSHORE UNITS
(Rev 1, 30.11.2007)
Issued by:
Norwegian Shipowners’ Association (NSA)
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
2
Introduction
A new NMD regulation 2007-07-04 No. 854 concerning deck cranes on mobile offshore units, etc. (henceforth referred to as 854/07 Crane Regulation) comes into force from 01.01.2008. The new regulation represent a revision of the NMD regulation 1986-01-13 No. 31 concerning deck cranes, etc. on mobile offshore units. The new NMD 854/07 Crane Regulation applies to new as well as existing deck cranes on mobile offshore units.
The main change in the NMD 854/07 Crane Regulation is given in § 7 which stipulates that the owner shall be able to document that the deck cranes are in compliance with a recognized international standard. The safety level of the applied standard shall minimum correspond to EN 13852-1 (Issue 1, August 2004)
This represent a major challenge for existing cranes as EN 13852-1 introduces several design and operational requirements that neither have been in the design basis for the cranes nor have been measured and evaluated against.
NMD has, however, indicated that a part-implementation of the standard may fulfil the new NMD 854/07 Crane Regulation for existing cranes, cf. NMDs hearing letter dated 17 July 2006 and statements at meeting in NSA 11 October 2006 where the practical implications of the new regulation were discussed.
In order to guide the Owners in this matter NSA requested DNV to develop guidance for carrying out required compliance assessment, and thereby, providing guidance for part implementation of EN 13852-1 on existing cranes.
DNV report with guidance for part-implementation of EN 13852-1 on existing offshore cranes on mobile offshore units
DNV developed, in cooperation with a reference group with participants from 4 owners of mobile offshore units as well as participants (“observers”) from the Norwegian authorities (NMD, PSA), a DNV report with guidance for part-implementation of EN 13852-1 on existing offshore cranes on mobile offshore units, ref.. Attachment A .
The DNV Report provides specific guidance to owners with respect to understanding of the requirements in the standard (rule setting), mapping of crane data and condition of the crane, and finally, how to perform compliance assessment.
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
3
GAP analysis of EN 13852-1 versus current NMD regulations
I n addition a requirement GAP analysis of EN 13852-1 versus current NMD regulations has been performed by a NSA Work Group. The GAP-analysis is attached, ref. Attachment B: “Requirements GAP analysis of EN 13852-1 versus NMD regulations”.
The GAP-analysis provides relevant guidance for owners who evaluate and verify the safety level of individual existing deck cranes, certified in accordance with NMD Regulation 13 January 1986 No. 31 concerning deck cranes, etc. on mobile offshore units, against NMD Regulation 4 July 2007 No. 854 concerning deck cranes, etc. on mobile offshore units.
Oslo, 30 November 2007
Attachments:
A DNV Report No.: 07-BGN-4960: Guide for part-implementation of EN 13852-1 on existing cranes on mobile offshore units, Rev. 3, dated 22 June 2007
B
Requirements GAP analysis of EN 13852-1 versus NMD regulation 2007-07-04 no. 854, Rev. 1, dated 30 November 2007
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
4
Attachment A
DNV Report No. 07-BGN-4960: Guide for part-implementation of EN 13852-1 on existing offsore cranes
on mobile offshore units (Rev. 03, 22 June 2007)
(See separate DNV report)
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
5
Attachment B
Requirement GAP-analysis of EN 13852-1 versus NMD regulations
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
6
The below evaluation (GAP-analysis) may be used as guidance when the owner evaluates and verifies the safety level of individual existing deck cranes, certified in accordance with NMD Regulation 13 January 1986 No. 31 concerning deck cranes, etc. on mobile offshore units (henceforth referred to as 31/86 Crane Regulation), against NMD Regulation 4 July 2007 No. 854 concerning deck cranes, etc. on mobile offshore units (henceforth referred to as 854/07 Crane Regulation).
Owner may bring the safety level of existing deck cranes in adequate compliance with the requirements in EN 13852-1 by modifications or introduction of decreased operational limits. The latter should standardally be avoided in order to maintain the crane’s operational capacities.
Alternative solutions may be acceptable provided verified to give equivalent level of safety to the specific requirement of the standard. In that case no formal deviation needs to be stated and there is no need to seek for an exemption.
An evaluation (GAP-analysis) of the individual requirements of the EN-13852-1 standard and corresponding relevant requirements in NMD regulation 854/07 Crane regulation, etc. shows that many of the requirements in EN 13852-1 can be verified by compliance with other NMD requirements.
The GAP-analysis as given below, provides an “evaluation” and “recommendation/conclusion” for each individual requirements in the EN 13852-1 standard.. The below GAP analysis does not differentiate between “red”, “yellow” of “green” requirements as done in the “DNV Guide”, cf. Attachment A.
The “evaluation” includes an interpretation of the specific requirements in the standard as well as evaluation of increased safety level compared with cost impact and modification practicality. The latter is specifically relevant in case specific requirements are seen as being close to existing standards and requirements already in effect. The owner must where stated “to be evaluated on each crane individually” document the evaluations performed if requirements in EN 13852-1 is not met.
The evaluation is to be performed by a project group with skills and competence as stated in DNV Report No.: 07-BGN-4960 chapter 6.2.
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
7
The “recommendations/conclusions” in the GAP-analysis are based on the principle that regulatory requirements has higher weight than requirements in the standard, e.g. where the requirement in force contradicts the EN 13852-1 standard, the regulatory requirement is used as reference. “No further action required” is stated under the assumption that current regulatory requirements in force are fulfilled.
The owner decides the final implications of the analysis performed for each individual cranes, i.e. introduction of operational limitations, modification, application to NMD for an exemption or no further action (existing solution has a safety level equivalent to the specific requirement of the standard).
It shall be noted that references to Regulation 13 January 1986 No. 31 concerning deck cranes, etc. on mobile offshore units (henceforth referred to as 31/86 Crane Regulation) has been made only where the safety level here is seen as being comparable to EN 13852-1.
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
8
Req. no. Description Includes Evaluation Recommendation/conclusion
5.1 General (Safety requirements and/or protective measures)
Paragraph 1 The individual crane will be evaluated towards the requirements set by the standard.
To be evaluated on each crane individually
5.1 General (Safety requirements and/or protective measures)
Paragraph 2 & 3
The individual crane will be evaluated towards the requirements set by the standard.
The cranes are built in accordance to and certified by NMD competent person.
The crane has on continuous basis been evaluated both operations wise and HSE wise by competent person and the deck crane has subsequent been continuously updated.
To be evaluated on each crane individually
5.1 General (Safety requirements and/or protective measures)
Last paragraph NMD has kept requirement in the revised 854/07 Crane Regulation § 10, Hydraulic, pneumatic and electrical systems item f).
No further action required.
5.2.1 General principles and requirements
Paragraph 1
Inclusive – Booklet 9
NMD has kept requirement in the revised 854/07 Crane Regulation §10, Calculations. The cranes built and certified by NMD competent person.
No further action required
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
9
Req. no. Description Includes Evaluation Recommendation/conclusion
5.2.1 General principles and requirements Paragraph 2
NMD has kept requirement in the revised 854/07 Crane Regulation §10, Calculations. The cranes built and certified by NMD competent person.
No further action required
Annex B B.4.1 Hoisting velocity
31/86 Crane Regulation requirement stated a capacity of 100 m/min. This corresponds with the standard. The standard has an additional requirements with loads above 5T
To be evaluated on each crane individually
Annex B B.4.2 Horizontal hook velocity
NMD has not in the past had requirements towards horizontal hook velocity
It must be evaluated based on measurements performed on the individual crane whether a modification is practical compared to cost/benefit.
To be evaluated on each crane individually
5.2.1 General principles and requirements Paragraph 3 NMD has kept requirement in the revised
854/07 Crane Regulation §10, Calculations.
No further action required
5.2.1 General principles and requirements Paragraph 4 Wire rope factors used are as per international
standard set by classification society or similar.
No further action required
5.2.1 General principles and requirements Paragraph 5 Maintenance system must take environmental
conditions into account. Individual maintenance system must be evaluated
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
10
Req. no. Description Includes Evaluation Recommendation/conclusion
5.2.1 General principles and requirements
Paragraph 6
Refers to Annex E
Material selection.
NMD has kept requirement in the revised 854/07 Crane Regulation §10, Materials.
Only materials certified by recognized classification society are used.
No further action required
5.2.2 In service loads All excl. paragraph 2, 1 & 2. sentence
NMD has kept requirement in the revised 854/07 Crane Regulation §10, Calculations a)
Further, the requirement must be evaluated in continuation of calculations of load chart based on AOPS and FMA.
It must be evaluated based on measurements performed on the individual crane whether a modification is practical compared to cost/benefit.
To be evaluated on each crane individually
5.2.2 In service loads Paragraph 2, 1. sentence, NMD has kept requirement in the revised 854/07 Crane Regulation, §7
No further action required
5.2.2 In service loads Paragraph 2. 2 sentence No comments Must comply with EN-13852
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
11
Req. no. Description Includes Evaluation Recommendation/conclusion
5.2.2 In service loads Last sentence Reference to annex C
5.2.3 Out of service loads All Reference to annex C
Annex C C1 General
The load charts will take into account the results of 5.7.1.2 AOPS calculations and 5.2.4 FMA.
The new load chart will give a correct result of the crane characteristic.
To be evaluated on each crane individually
C 2.1 Mean wind Velocities All
NMD has kept requirement in the revised 854/07 Crane Regulation §10, Design criteria/construction requirements a).
No further action required
If 31/86 Crane Regulation requirements or similar are adhered to, and through review of the crane historic it can be determined that incidents in this area has not occurred.
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
12
Req. no. Description Includes Evaluation Recommendation/conclusion
C 2.2 Boom Stalling
C2.2.1 General
C2.2.2 Rope luffed cranes
C2.2.3 Cylinder luffed cranes
All
854/07 Crane Regulation §10, Calculations, contains general requirements which are not specified as clearly as EN 13852-1.
Requirements were specified in 31/86 Crane Regulation § 5 “Boom stalling”. The crane must be constructed in a way that the boom will not stall.
The intention of the requirement is covered by 854/07 Crane Regulation §10 Calculation.
No further action required
If 31/86 Crane Regulation requirements or similar are adhered to, and through review of the crane historic it can be determined that incidents in this area has not occurred.
C 3 All NMD has kept requirement in the revised 854/07 Crane Regulation §10, Calculations a)
No further action required
C 4 Thermal effects All NMD has kept requirement in the revised 854/07 Crane Regulation §10 ,Calculations subsection a) and §13
No further action required
C 5 Ice All NMD has kept requirement in the revised 854/07 Crane Regulation §10 Calculations paragraph b).
No further action required
C 6 Stowage All NMD has kept requirement in the revised 854/07 Crane Regulation §10 Calculations subsection b).
No further action required
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
13
Req. no. Description Includes Evaluation Recommendation/conclusion
C 7 Corrosion protection All
The requirement is considered covered by the maintenance program. The maintenance program corresponds with vendor requirements.
No further action required
5.2.4 Failure mode analysis All Reference to annex D.
Annex D D1 General All
An evaluation will be made using existing FMA analysis based on the existing evaluation performed in 2001/2002, ref. OD 01/37-48 /HHM/InS.
To be evaluated on each crane individually
D2 Failure mode charts Paragraph 1
The requirement concerning failure load ratio is seen as being in accordance with EN 13852-1 if they have been performed towards offlead and sidelead angels corresponding to H 1/3=1m.
To be evaluated on each crane individually
D2 Failure mode charts Paragraph 2
The failure mode charts will be based on existing material properties.
To be evaluated on each crane individually
D2 Failure mode charts Paragraph 3
The requirement concerning failure load ratio is seen as being in accordance with EN 13852 if they have been performed towards offlead and sidelead angels corresponding to H 1/3=1m.
To be evaluated on each crane individually
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
14
Req. no. Description Includes Evaluation Recommendation/conclusion
5.2.5 Load combinations
NMD has kept requirement in the revised 854/07 Crane Regulation §10 Calculations a).
Further, the requirement must be evaluated in continuation of calculations of load chart based on AOPS and FMA.
It must be evaluated based on measurements performed on the individual crane whether a modification is practical compared to cost/benefit.
To be evaluated on each crane individually
5.3.1 Electrotechnical equipment All NMD has kept requirement in the revised 854/07 Crane Regulation §10, Hydraulic, pneumatic and electrical systems.
No further action required
5.3.2 Non-electrotechnical equipment All
NMD has kept requirement in the revised 854/07 Crane Regulation §10, Hydraulic, pneumatic and electrical systems.
No further action required
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
15
Req. no. Description Includes Evaluation Recommendation/conclusion
5.3.3 Power requirements All
NMD has kept requirement in the revised 854/07 Crane Regulation, Design criteria/construction requirements §10 subsection a) and c).
If 2003 requirements or similar are adhered to, and through review of the crane historic it can be determined that incidents in this area has not occurred.
To be evaluated on each crane individually
5.3.4 Slewing drives Paragraph 1
NMD has kept requirement in the revised 854/07 Crane Regulation, §10, Design criteria/construction requirements a) and c).
If 31/86 Crane Regulation requirements or similar are adhered to, and through review of the crane historic it can be determined that incidents in this area has not occurred.
To be evaluated on each crane individually
5.3.4 Slewing drives Paragraph 2
Must be evaluated against EN-13852-1.
Solutions giving similar safety level can be taken into conderation.
To be evaluated on each crane individually
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
16
Req. no. Description Includes Evaluation Recommendation/conclusion
5.3.4 Slewing drives Paragraph 3 refers to Annex I
NMD has kept requirement in the revised 854/07 Crane Regulation, §10, Design criteria/construction requirements a) and c).
If 31/86 Crane Regulation requirements or similar are adhered to, and through review of the crane historic it can be determined that incidents in this area has not occurred.
To be evaluated on each crane individually
5.3.5 Slewing bearings Annex H, All except paragraph 1
NMD has kept requirement in the revised 854/07 Crane Regulation §10 Materials a)
No further action required
5.3.5 Slewing bearings Annex H, Paragraph 1
The requirement concerning failure load ratio is seen as being in accordance with EN 13852-1 if they have been performed towards offlead and sidelead angels corresponding to H 1/3=1m.
To be evaluated on each crane individually
Annex H Paragraph 1 No comments. To be evaluated on each crane individually
Annex H Paragraph 2
No comments.
If documented measurements are ensured through Maintenance System.
To be evaluated on each crane individually
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
17
Req. no. Description Includes Evaluation Recommendation/conclusion
Annex H Paragraph 3 No comments To be evaluated on each crane individually
5.3.6 Slewing bearing fasteners
NMD has kept requirement in the revised 854/07 Crane Regulation §10 Calculations a).
No further action required
5.3.7 Winches and brakes Annex K The EN standard and 31/86 Crane Regulation is comparable. If 31/86 Crane Regulation is adhered to, see § 4 subsection 5.4.
No further action required
5.3.7 Winches and brakes Last sentence (Annex I) Reference to annex I
Annex I Paragraph 1 The EN standard and 31/86 Crane Regulation is comparable.
No further action required
If 31/86 Crane Regulation is adhered to, see §4 paragraph 5.10
Annex I Paragraph 2 No comments. Must be evaluated on each crane individually.
Annex I Paragraph 3 The EN standard and 31/86 Crane Regulation is comparable.
No further action required
If 31/86 Crane Regulation is adhered to, see §4 subsection 5.10
Annex I Paragraph 4 No comments. To be evaluated on each crane individually
Annex I Paragraph 5 Documented by materials or test. To be evaluated on each crane individually
Annex I Paragraph 6 No comments. To be evaluated on each crane individually
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
18
Req. no. Description Includes Evaluation Recommendation/conclusion
Annex I Paragraph 7 No comments. To be evaluated on each crane individually
Annex I Paragraph 8 EN 982 to be evaluated. To be evaluated on each crane individually
Annex I Paragraph 9 a), b), c) No comments. To be evaluated on each crane individually
5.3.8 Wire rope termination No comments. To be evaluated on each crane individually
5.3.9 Wire rope anchorage Paragraph 1 EN 13135-2 to be evaluated. To be evaluated on each crane individually
5.3.9 Wire rope anchorage Paragraph 2 No comments. To be evaluated on each crane individually
5.3.9 Wire rope anchorage Paragraph 3, sentence 1 31/86 Crane Regulation §4 subsection 10.1 has higher safety level.
No further action required
If 31/86 Crane Regulation is adhered to, see §4 subsection 10.1
5.3.9 Wire rope anchorage Paragraph 3, sentence 2 31/86 Crane Regulation §4 subsection 5.6 has higher safety level.
No further action required
If 31/86 Crane Regulation is adhered to, see §4 subsection 5.6
5.3.9 Wire rope anchorage Paragraph 4 No comments. To be evaluated on each crane individually
5.3.10 Wire ropes
NMD has kept certification requirement in the revised 854/07 Crane Regulation, §15, Testing, examination and certification,
This is seen as giving a higher safety level.
No further action required
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
19
Req. no. Description Includes Evaluation Recommendation/conclusion
5.3.11 Hydraulic cylinders All No comments To be evaluated on each crane individually
5.3.12 Motion compensators No comments. To be evaluated on each crane individually
5.3.13 Shock absorbers All No comments. To be evaluated on each crane individually
5.4.1 General (Drive systems) All NMD has kept requirement in the revised 854/07 Crane Regulation §10, Hydraulic, pneumatic and electrical systems.
No further action required
5.4.2 Pneumatic systems All NMD has kept requirement in the revised 854/07 Crane Regulation §10, Hydraulic, pneumatic and electrical systems.
No further action required
5.4.3 Hydraulic systems All NMD has kept requirement in the revised 854/07 Crane Regulation §10, Hydraulic, pneumatic and electrical systems.
No further action required
5.4.4 Electrical systems All NMD has kept requirement in the revised 854/07 Crane Regulation §10, Hydraulic, pneumatic and electrical systems.
No further action required
5.4.5 Heave compensation/rope tensioning systems No comments. To be evaluated on each crane individually
5.4.5 Heave compensation/rope tensioning systems
Paragraph 1 subsection c)
Active rope tensioning (ART)
To be evaluated on each crane individually
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
20
Req. no. Description Includes Evaluation Recommendation/conclusion
5.4.5 Heave compensation/rope tensioning systems Paragraph 2 To be evaluated on each crane individually
5.4.5 Heave compensation/rope tensioning systems Paragraph 3 To be evaluated on each crane individually
5.4.5 Heave compensation/rope tensioning systems Paragraph 4 To be evaluated on each crane individually
5.4.5 Heave compensation/rope tensioning systems Paragraph 5 To be evaluated on each crane individually
5.4.5 Heave compensation/rope tensioning systems Paragraph 6 To be evaluated on each crane individually
5.5.1 Control stations - General 31/86 Crane Regulation §4 subsection 11.5 and 15.1, §5 subsection 2, subsection 3 and subsection 10 gives similar safety level.
No further action required
5.5.2.1 General All, excl. b and last paragraph
31/86 Crane Regulation §4 paragraph 11, 12 and 13 gives similar safety level.
No further action required
5.5.2.1 General b) Second seat must be installed in cabin. To be evaluated on each crane individually
5.5.2.1 General Last paragraph CCTV at boom tip must be installed Must be adhered to.
5.5.2.2 Windows All 31/86 Crane Regulation §4 subsection 11 gives similar safety level.
No further action required
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
21
Req. no. Description Includes Evaluation Recommendation/conclusion
5.5.2.3 Crane operator’s seat All 31/86 Crane Regulation §4 subsection 11 gives similar safety level.
No further action required
5.5.2.4 Cabin interior All 31/86 Crane Regulation §4 subsection 3.4.3 and 11.3 gives similar safety level.
No further action required
5.5.2.5 Cabin instrumentation Paragraph 1 31/86 Crane Regulation §4 subsection 11.5 and 15.1 gives similar safety level.
No further action required
5.5.2.5 Cabin instrumentation Paragraph 2 No comments. To be evaluated on each crane individually
5.5.3 Communications All If 31/86 Crane Regulation is adhered to, see §5 subsection 11.
No further action required
5.5.4.1 Noise reduction at source by design All 31/86 Crane Regulation §4 subsection 1.3
gives similar safety level.
No further action required
5.5.4.2 Noise reduction by information All 31/86 Crane Regulation §4 subsection 1.3
gives similar safety level. No further action required
5.5.5 Access All 31/86 Crane Regulation §4 subsection 13 gives similar safety level.
No further action required
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
22
Req. no. Description Includes Evaluation Recommendation/conclusion
5.5.6 Guards All 31/86 Crane Regulation §4 subsection 11.2 and 13 gives similar safety level.
No further action required
5.6.1 Controls All, excl. last paragraph
31/86 Crane Regulation §4 subsection 11 and 15 gives similar safety level.
Standards referred to in the requirement have not been evaluated.
No further action required
5.6.1 Controls Last paragraph NMD has kept requirement in the revised 854/07 Crane Regulation §10, Hydraulic, pneumatic and electrical systems g),
No further action required
5.6.2.1 General (Indicators) “Green” requirement. No further action required
5.6.2.2 Rated capacity indicator
All
NMD has kept requirement in the revised 854/07 Crane Regulation, Ref §11, load indicators.
The NMD requirement and the EN standard do not correspond, wherefore the NMD requirements are seen as being valid.
No further action required
5.6.2.3 Slack rope indicator “Green” requirement No further action required
5.6.2.4 Indicator for drum motion “Green” requirement No further action required
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
23
Req. no. Description Includes Evaluation Recommendation/conclusion
5.6.2.5 Indicator for failures in the power system “Green” requirement No further action required
5.6.2.6 Indicator for failures in the control system “Green” requirement No further action required
5.6.2.7 Wind speed indicator All No comments To be evaluated on each crane individually
5.6.2.8 Crane inclinometer “Green” requirement No further action required
5.6.2.9 Slewing torque indicator “Green” requirement No further action required
5.6.2.10 Mechanical radius indicator “Green” requirement No further action required
5.6.3.1 General All, refer to Annex J NMD philosophy in 854/07 Crane Regulation §11 and earlier corresponds to Annex J.
No further action required
Annex J Ranking of safety systems
Table J.1
NMD philosophy in 854/07 Crane Regulation §11 and earlier corresponds to Annex J.
No further action required
Annex J Ranking of safety systems
Table J.2
NMD philosophy in 854/07 Crane Regulation §11 and earlier corresponds to Annex J.
No further action required
5.6.3.2 Motion limiter All 31/86 Crane Regulation §5 paragraph 1 gives similar safety level.
No further action required
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
24
Req. no. Description Includes Evaluation Recommendation/conclusion
5.6.3.3 Slack rope preventer All
Requirement concerning slack rope preventer for luffing to be seen in conjunction with Annex C 2.2
To be evaluated on each crane individually.
If 31/86 Crane Regulation requirements or similar are adhered to, and through review of the crane historic it can be determined that incidents in this area has not occurred.
5.7.1.1 General All To be evaluated on each crane individually
5.7.1.2 Automatic overload protection system (AOPS) All To be evaluated on each crane individually
5.7.1.3 Manual overload protection system (MOPS) All
To be evaluated on each crane individually
5.7.1.3 Manual overload protection system (MOPS) Paragraph 4
The aspect of continuous activation for 5 min. must be evaluated towards cost/benefit. Alternative solutions may be considered if safety level can be maintained.
To be evaluated on each crane individually
5.7.1.4 Emergency operation Paragraph 1
If the crane complies to The lifesaving regulation FOR 2007-07-04 nr 853 §11 concerning emergency power it will cover the requirement with regards to power failure.
31/86 Crane Regulation § 4 paragraph 5.11 gives similar safety level with regards to emergency lowering of the hook.
To be evaluated on each crane individually
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
25
Req. no. Description Includes Evaluation Recommendation/conclusion
5.7.1.4 Emergency operation Paragraph 2
To be evaluated on each crane individually
5.7.1.5 Lateral boom protection systems All No comments To be evaluated on each crane individually
5.7.1.6 Emergency stop All NMD philosophy in 854/07 Crane Regulation §11, Emergency stop switches and earlier corresponds to Annex J.
No further action required
5.8.1 General All Only applies for cranes intended for lifting or moving personnel.
To be evaluated on each crane individually
5.8.2 Rated capacity All Only applies for cranes intended for lifting or moving personnel.
To be evaluated on each crane individually
5.8.3 Secondary brake All Only applies for cranes intended for lifting or moving personnel.
To be evaluated on each crane individually
5.8.4 Cylinders All Only applies for cranes intended for lifting or moving personnel.
To be evaluated on each crane individually
5.8.5 Mode selection for personnel lifting All Only applies for cranes intended for lifting or
moving personnel. To be evaluated on each crane individually
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
26
Req. no. Description Includes Evaluation Recommendation/conclusion
5.8.6 Personnel rescue Paragraph 1.
Alternative measures can be provided giving an adequate safety level.
The lifesaving regulation FOR 2007-07-04 nr 853 §11 and §16 has kept the requirements concerning emergency power as well as requirements for MOB boat being reachable from two deck cranes.
The EN standard does not take above into consideration.
5.8.6 must be seen in connection with 5.7.1.4
To be evaluated on each crane individually
The requirement must be evaluated towards the rescue boat handling of the individual MODU. Compensating measures can be put into place giving similar safety level as intended in the requirement.
5.8.6 Personnel rescue Paragraph 2 No comments To be evaluated on each crane individually
6 Verification of the safety requirements and / or protective measures
DnV comment: Verification or rebuilding and modifications to be done in accordance with chapter 6 ref §13.4.
“Green” requirement.
No further action required
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
27
Req. no. Description Includes Evaluation Recommendation/conclusion
7.1 Documentation NMD has kept requirement in 854/07 Crane Regulation §7, and §17.
No further action required
7.2.1 General NMD has kept requirement in 854/07 Crane Regulation §7, and §17.
No further action required
7.2.2 Checks before operation NMD has kept requirement in 854/07 Crane Regulation §7, and §17.
No further action required
7.2.3 Checks during operation NMD has kept requirement in 854/07 Crane Regulation §7, and §17.
No further action required
7.2.4 Crane out of service NMD has kept requirement in 854/07 Crane Regulation §7, §10 and §17.
No further action required
7.2.5 Lifting of personnel (if part of the intended use) No comments.
To be evaluated on each crane individually
7.3 Maintenance NMD has kept requirement in 854/07 Crane Regulation §7.
No further action required
7.4 Inspections NMD has kept requirement in 854/07 Crane Regulation §17, §8 and §15.
No further action required
Guidelines for the implementation of EN 13852-1 on existing cranes on mobile offshore units (Rev. 1, 30.11.2007)
28
Req. no. Description Includes Evaluation Recommendation/conclusion
7.5.1 Manufacturer's plate NMD has kept requirement in 854/07 Crane Regulation §16.
No further action required
7.5.2 Rated capacity information NMD has kept requirement in 854/07 Crane Regulation §16.
No further action required
7.5.3 Components NMD has kept requirement in 854/07 Crane Regulation §16.
No further action required
