Section 6 Testing, trials and surveys

6.1.1 The testing and trials required by Pt 7, Ch 13, 6.1 General 6.1.2 to Pt 7, Ch 13, 6.1 General 6.1.5 are to be successfully completed to the Surveyor's satisfaction before OPS notation may be assigned. Where appropriate test facilities cannot be provided, trials are likely to require the additional co-operation of a port facility with a suitable external electrical power supply and the ability to operate the defined services to be supplied during these trials and allow the testing described to be conducted.

6.1.2 Electrical and control engineering equipment is to be surveyed at manufacturer's works and undergo survey and operational trials on board in accordance with the approved test schedules and applicable testing requirements in Pt 6, Ch 1 Control Engineering Systems and Pt 6, Ch 2 Electrical Engineering.

6.1.3 In addition to Pt 7, Ch 13, 6.1 General 6.1.2, the following Connection Equipment, where applicable, is to be surveyed by the Surveyors during manufacture and testing:

• filters;
• converters; and
• slip ring assemblies.

See also Pt 6, Ch 2, 1.4 Surveys 1.4.6.

6.1.4 Cable reels, cranes and/or gantry drives for Connection Equipment are to be surveyed and tested in accordance with applicable LR Rules and Pt 7, Ch 13, 3.2 Connection equipment 3.2.9.(e).

6.1.5 Trials are to be conducted when connected to a compatible external electrical power supply in accordance with Pt 7, Ch 13, 3.1 General 3.1.10 to demonstrate to the attending Surveyor that the Rules have been complied with in respect of:

1. operation of connection management arrangements;

2. trials on cable lifting appliances (for example cable reels or cranes) are to be conducted that demonstrate suitability for the maximum mechanical load and duty required by the Defined Operations within the service profile contained in the Design Statement, including connection of extensions or adapters;

3. satisfactory performance of the connection and Connection Equipment throughout the Defined Operations, including a run with the defined services to be supplied operational;

4. temperature of electrical joints, connections, circuitbreakers and fuses;

5. the operation of electrical load transfer arrangements (including Transfer Time Limit setting), electrical system protection and interlocking devices, Emergency Shutdown arrangements and other safety devices and ship power restoration;

6. where acceptable type-test evidence is not submitted, connection break-away, see Pt 7, Ch 13, 3.2 Connection equipment 3.2.7;

7. voltage regulation when the maximum load is suddenly thrown off and when starting the largest motor connected to the system;

8. where more than one external power supply connection can be operated in parallel, satisfactory load sharing at loads up to normal working load; and

9. voltage drop is to be measured, where necessary, to verify that this is not in excess of that specified in Pt 6, Ch 2, 1.8 Quality of power supplies.

Measurement methods are site-specific and shall be documented, see Pt 6, Ch 2, 1.2 Documentation required for design review.

6.1.7 Arrangements are to be:

• examined at Annual Survey; and
• examined and functionally tested whilst connected to an external electrical power supply during the Complete Surveys of machinery or, where this is not practical, within 12 months of the due date of the Complete Surveys of machinery.

This is to include examination of Connection Equipment.