PART 3Tackle (continued)
DIVISION 1Cargo Gear (continued)
Registers and Certificates (continued)
Easily Identifiable Cargo Gear
313 Cargo gear shall be easily identifiable from the information set out in any certificate for the gear or from any entry for the gear in a vessel’s register.
Prohibitions on Using Cargo Gear
(2) If the certificates for any cargo gear that should be listed in the register are not attached to it when it is produced, that cargo gear shall not be used until the certificates are produced or the cargo gear is tested or thoroughly examined.
315 If a person is directed under paragraph 211(4)(e) of the Act to produce the register, on production of the register, the person shall report any change in the cargo gear listed in the register since it was last tested that could adversely affect the results of that test.
316 The register and certificates shall be kept on board the vessel or at the cargo gear owner’s premises, as the case may be, for at least five years after the date of the most recent entry in the register.
(a) column 2;
(b) the regulations, rules or codes of a classification society;
(c) if the article is a part of a lifting appliance that is operated onshore or on a restricted vessel,
(d) in the case of wire rope that is part of a lifting appliance that is operated onshore or on a restricted vessel, paragraph E.1.2 of Appendix E to Safety and Health in Ports.
(2) Cargo gear shall not be used when, because of wear, corrosion or other reasons, the safety factor of any part of it is less than 80% of the safety factor adopted in its manufacture.
Safe Working Loads
Exceeding Safe Working Loads
(2) The resultant load on main accessory gear or loose gear used with a lifting appliance shall not exceed the safe working load of the gear.
(3) Single-sheave pulley blocks may be used in any position where the maximum resultant load on the head fitting is not more than twice the safe working load engraved or stamped on the block.
Determining Safe Working Loads
319 In each case referred to in subsections 323(2) and (3), the safe working load shall be determined for the lowest working angle of the boom shown in the rigging plan for the derrick.
Loose Gear — General
(2) Despite subsection (1), the safe working load of specially designed spreader beams, lifting frames and lifting clamps shall be determined by an expert person using design calculations.
321 (1) The safe working load of slings that are not used in a straight vertical lift configuration or as one-legged slings shall be determined in accordance with sections 184.108.40.206 to 220.127.116.11 of Safety and Health in Ports.
(2) The safe working load of a synthetic webbing sling shall be determined in a manner that takes into account any potential loss of strength caused by the stress introduced by the interaction of the cargo hook intended to be used with the sling.
322 The safe working load of a wire rope is one fifth of the breaking strength of the sample tested under section 307.
Marking or Indicating Safe Working Loads
(2) If only one safe working load is marked on a derrick, it shall be the safe working load with single purchase only. If two safe working loads are marked, the first shall be the safe working load with single purchase and the second shall be the safe working load with double purchase.
(3) If a certificate has been issued under subsection 312(4) in respect of a derrick tested when operated in union purchase, the safe working load shall be marked with the letters “SWL(U)” or “CMU(CV)” to indicate that it is the safe working load for operation in union purchase.
Main Accessory Gear
324 Main accessory gear shall have its safe working load clearly marked on it.
325 Every pulley block shall have its safe working load permanently engraved or stamped on it.
326 The safe working load of slings in a straight vertical lift configuration shall be indicated as follows:
(a) in the case of chain slings, by marking them in figures or letters on the sling or on a tablet or ring of durable material attached securely to the sling;
(b) in the case of wire-rope slings and reusable natural- or synthetic-fibre rope or webbing slings, as specified in paragraph (a) or by stating the safe working loads for the various sizes of slings used on a notice and exhibiting it so that it can be easily read by persons using the slings;
(c) in the case of disposable webbing slings, by marking the slings with a “U” or the word “DISPOSABLE” or “JETABLE”; and
(d) in the case of disposable stranded rope slings, by using marker yarns or other means that identify the slings with their certificates issued under subsection 312(2).
Reduction of Safe Working Loads
(a) as provided for in a table provided by its manufacturer with respect to the safe working load to be adopted under those conditions; or
(b) if the manufacturer has not provided the table and the visually determined vertical range between the hook and the load attachment point resulting from the vessel’s motion in the waves is within the range set out in column 1 of the table to this paragraph, by the percentage set out in column 2.
Column 1 Column 2 Item Range (m) Reduction to SWL (%) 1 0.2 – 0.5 30 2 0.5 – 1.5 50 3 1.5 – 2.5 70
(2) A copy of the table referred to in paragraph (1)(a) or (b), as the case may be, shall be posted at a location that is visible from the appliance’s control position.
(3) Subsections (1) and (2) do not apply if the appliance automatically compensates for the vessel’s motion in waves.
(2) The rigging plan shall show
(3) An additional rigging plan shall be kept on board the vessel if lifting appliances installed on the vessel are coupled in any combination to each other or to other lifting appliances. The additional rigging plan shall show the information set out in subsection (2) for the manner in which the appliances are coupled.
(4) The lifting appliances shall be rigged in accordance with the rigging plan and, if applicable, the additional rigging plan.
Operation in Union Purchase
329 (1) If a derrick is marked with a safe working load for operation in union purchase under subsection 323(3), a stress diagram or position-setting data shall be provided to the operator of the derrick.
(2) If two derricks are operated in union purchase but are not marked under subsection 323(3),
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