Page 448 - Offshore Electrical Engineering Manual

Preparation and Use of Performance Standards 435

INSTALLATION: PERFORMANCE STANDARD: INTERNAL COMMUNICATIONS (cont.)
Survivability Requirement Assurance
Explosion Individual field instruments are not expected to survey a local Design drawings and
explosion inspection.
Fire Cabling Circuits with safety functions such as PA / alarm systems Verified through
have fire resistant characteristics to IEC 331. Cable routing is inspection and testing.
designed to minimise the probability of damage from fire. Duplicate Design drawings and
redundant circuits or supplies provide compliance with the inspection.
requirements of protection of safety or essential systems and follow
separated as far as practicable.
Pool/jet fire Damage to individual communications units or cabling will alarm Verified through
through the line monitoring/self-checking system. inspection and testing.
Design drawings and
inspection.
See standard XXXXX
Environmental Requirement Reference
Prevent toxic spill to Chemicals and fuel to be provided with secondary containment where -
Environment necessary [No significant inventory related to internal coms systems]
Interacting systems Dependence/Interaction Reference
UPS Systems Dependent on UPS power supplies Verified through
F&G Systems PA system broadcasts vessel-wide alarms as required inspection and testing.
Design drawings and
inspection.
See standard XXXXX
FIGURE 9.2.1, cont’d