For professionals looking to access this document, it is typically available through the IEC Webstore or national standards bodies. It serves as the backbone for maintaining electrical integrity in the world's most demanding maritime environments.
Tanker ships have unique electrical installation requirements due to the hazardous nature of their cargo. Some of the special features of electrical installations in tankers include: For professionals looking to access this document, it
| Check item | Compliant? | |------------|-------------| | All hazardous area equipment has valid IECEx/ATEX certificate for gas group & temp class | ☐ | | Cables entering Zone 1 or 2 have certified Ex d or Ex e glands | ☐ | | Pumproom motors cannot start without ventilation run (timer interlock) | ☐ | | ESD system isolates power to cargo deck and pumproom from a safe location | ☐ | | Gas detection sensors located in pumproom bilge, tank domes, and deck manifold | ☐ | | No sockets or portable lights in Zone 1 unless Ex d or Ex i | ☐ | | Metal sheaths/armor of cables bonded to ship’s earth at both ends | ☐ | | Bulkhead penetrations sealed with certified compound or barrier gland | ☐ | Some of the special features of electrical installations
in Zone 1: Standard industrial switchgear, non-Ex rated plugs/sockets, and any device with open sparking contacts (e.g., relays without arc suppression). non-Ex rated plugs/sockets
The standard does not invent new apparatus types but mandates which existing Ex protection concepts are acceptable and under what conditions.