Section 7 Electrical installation
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Offshore Units, July 2022 - Part 11 Production, Storage and Offloading of Liquefied Gases in Bulk - Chapter 20 Barges and Offshore Units Equipped with Regasification - Section 7 Electrical installation

Section 7 Electrical installation

Parent topic: Chapter 20 Barges and Offshore Units Equipped with Regasification

7.1 Functional objectives

7.1.1  The electrical installation of a regasification system shall be designed, installed and maintained such that it does not represent an ignition hazard or introduce any foreseeable hazards into the normal operation of the barge or offshore unit.

7.2 Performance requirements

7.2.1  The installations shall meet with the requirements of Pt 6, Ch 2 Electrical Engineering, or an alternative relevant National or International Standard acceptable to LR, as applicable.

7.2.2  All electrical equipment shall be suitably protected against damage to itself under fault conditions, provide adequate protection to prevent damage to other process equipment connected to the system and to prevent injury to personnel.

7.3 System design, construction and installation

7.3.1  The electrical power for the regasification system shall be provided by an individual dedicated circuit from the main switchboard.

7.3.2  Where the ✠Lloyd’s RGP+ Notation is assigned, the system shall be provided by two individual circuits separated in the main switchboard or section board and throughout its length and without the use of common feeders. Where a stand-by unit is provided, it shall be supplied from a separate section of the main switchboard to ensure a single point equipment failure does not render both systems inoperable.

7.3.3  Electrical equipment for the regasification system shall be suitable for use in the environmental conditions envisaged during regasification mode. It is also to be appropriately installed to prevent any adverse effects due to environmental conditions encountered when not in use.

7.4 Hazardous zones and spaces

7.4.1  The classification of hazardous zones associated with the regasification plant shall be carried out in accordance with IEC 60079-10-1 or an alternative relevant National or International Standard acceptable to LR.

7.4.2  The hazardous zones plan shall identify areas where the release of flammable gases and vapours may be present due to the regasification system during normal working operation and reasonably foreseeable abnormal conditions, as identified during the Risk Assessments required by Pt 11, Ch 20, 3 Risk based analysis.

7.5 Certified safe type equipment

7.5.1  Selection of electrical equipment within the hazardous zones shall be in accordance with Pt 6, Ch 2 Electrical Engineering.

Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.