Section 4 Offshore Plant Units

(1) The requirements in this Section apply to offshore plant units.

(2) The requirements in this Section do not apply to the facilities for the factory installed on the unit. However, attention is to be paid to compliance with the National Regulations of the coun- try in which the unit is stationed or operated.

(3) The Society may carry out surveys on the facilities for the factory on the unit on application from the Owners or manufacturers.

2. Definitions

Offshore plant units is a unit which is installed with equipment for the industrial factory, and sta- tioned under floating condition or landed on the sea bed semi-permanently or for a long time at its service area.

3. General

(1) For the unit in which inflammable or toxic goods are dealt with as raw materials or products, considerations are to be given to the arrangements, ventilation and so on so that the in- flammable or toxic vapours which might be produced by the storage systems and producing sys- tems would not affect the installations or equipment essential for the safety of the units,

(corresponding to the systems essential for the safety of units defined in Ch

applied hereinafter), and their operators as well.

10, the same being

(2) Equipment for the factory is not to be operated or tested while the unit is being towed to the service area.

402. Hull construction and equipment

1. General

Hull construction and equipment are to be in accordance with the requirements in Ch 3 to 6 de- pending upon the type of unit.

403. Machinery

1. General

The machinery for the unit is to be in accordance with the requirements in this Article as well as those in Ch 10 except for 108. in the said Chapter. However, one bilge pump for each compart- ment may be acceptable for the unit intended for restricted service.

2. Main source of electrical power

(1) Where the source of electric power for the facilities for the factory installed on the unit is uti- lized as the main source of electric power specified in Ch 10, 106. 2, this source of electric power is to be capable of supplying electric power to the installations or equipment essential for the safety of the unit even while necessary electric power is supplied to the facilities for the factory.

(2) For the unit for which it is deemed impracticable to utilize the main source of electrical power while being towed and the unit to which electric power is intended to be supplied from the shore, a suitable source of electric power is to be provided to supply electrical power necessary during being towed. However this source of electric power may be a temporary equipment.