Section 9 Cables

901. General

1. Construction, application and current carrying capacity of cable are to be in accordance with the re- quirements in Pt 6, Ch 1, Sec 4 of the Rules for the Classification of Steel Ships.

2. In the case of barge whose electrical power is supplied from the pusher, these feeder cables are to be avoided from having a direct effect of tension on the cables regardless of the connecting meth- od of the pusher and barge.

902. Installation of cables 【See Guidance】

1. Cable are to be so installed as to avoid damages due to deflection of the hull.

2. When installing cables, the minimum internal radius of bend is to be of adequate to prevent the cables from damage.

3. Where cables having different insulating materials each other are bunched together, considerations are to be given to the maximum rated conductor temperatures of each cable.

4. Where cables pass through watertight or airtight bulkheads or decks, considerations are to be given to maintain the watertightness or airtightness of these bulkheads or decks.

903. Mechanical protection of cables 【See Guidance】

Cables fitted in locations, such as cargo holds, where they are likely to suffer mechanical damage, are to be suitably protected by pipes or ducts.

904. Cable pipes and ducts

1. Cable pipes and ducts are to have suitable drainage.

2. Metallic pipes and ducts are to be efficiently protected against corrosion and to be earthed effectively. Nonmetallic pipes and ducts are to be of flame-retardant materials.

905. Securing of cables 【See Guidance】

Cables are to be effectively supported and secured by supports and clips which are of corrosion-re- sistant metallic materials or those protected against corrosion or of flame-retardant non-metallic ma- terials taking account of kind of cable, electrical magnetic force caused by short circuit current, vi- bration and their installing condition except cables which are portable cords or installed in pipes.

906. Cable joint and branch

Cables is to be jointed or branched in a suitable box with terminals, except where method of con- nection has no risk of deteriorating water-proof characteristics, flame retardant, mechanical strength or electrical characteristics of cables.

80 Rules for the Classification of Steel Barges 2015