BVN TM ELEC1 – ELECTRICAL EQUIPMENT Head Office – Department Technology Equipment - V0 – December 2009

CONTENT 1 – Objectives 2 – Electrical equipment general requirements 3 – Various electrical equipment

3 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment – Objectives THIS MODULE IS MAINLY BASED ON HO DTM/DT3 TRAINING REFERENCED SMS64

1 – Objectives

5 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment – Objectives To be familiar with Classification Rules regarding electrical equipment Study of Classification Rules requirements for electrical equipment

2 – Electrical equipment general requirements

7 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment ► General The class rules are related to essential services All services which are not essential are not considered by the rules as far as they do not interfer with essential services Definition of the essential services is issued from IACS interpretation SC 134 Essential services are those services to be supplied by the main source and considered on the electrical load balance as necessary power for minimum sizing of generators

8 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment ► Definition of services Primary essential services are those which need to be maintained in continuous operation Secondary essential services are those services which need not necessarily to be in continuous operation

9 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment ► Primary essential services Steering gear Actuating systems of controllable pitch propellers Scavenging air blowers, fuel oil supply pumps, fuel valve cooling pumps, lubricating oil pumps and cooling water pumps for main and auxiliary engines and turbines necessary for the propulsion Forced draught fans, feed water pumps, water circulating pumps, condensate pumps, oil burning installations, for steam plants or steam turbines ship, and also for auxiliary boilers on ship where steam is used for equipment supplying primary essential services Azimuth thrusters which are the sole means for propulsion/steering with lubricating oil pumps, cooling water pumps Electrical equipment for electric propulsion plant with lubricating oil pumps and cooling water pumps

10 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment ► Primary essential services Electric generators and associated power sources supplying the above equipment Hydraulic pumps supplying the above equipment Viscosity control equipment for heavy fuel oil Control, monitoring and safety devices/systems for equipment for primary essential services Speed regulators dependent on electrical energy for main or auxiliary engines necessary for propulsion Starting equipment of diesel engines and gas turbines. The main lighting system for those parts of the ship normally accessible to and used by personnel and passengers is also considered (included as) a primary essential service.

11 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment ► Secondary essential services Windlasses Thrusters Fuel oil transfer pumps, fuel oil treatment equipment, and preheaters for heavy fuel oil Lubrication oil transfer pumps and lubrication oil treatment equipment Sea water pumps Starting air and control air compressors Bilge, ballast and heeling pumps Fire pumps and other fire-extinguishing medium pumps Ventilation fans for engine and boiler rooms Services considered necessary to maintain dangerous cargo in a safe condition

12 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment ► Secondary essential services Navigation lights, aids and signals Internal safety communication equipment Fire detection and alarm systems Electrical equipment for watertight closing appliances Electric generators and associated power supplying the above equipment Hydraulic pumps supplying the above equipment Control, monitoring and safety for cargo containment systems Control, monitoring and safety devices/systems for equipment for secondary essential services

13 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment ► General requirements for essential services : The connection of generating sets and associated auxiliaries and other duplicated equipment is to be equally divided between the parts as far as practicable, so that in the event of damage to one section of the switchboard the remaining parts are still supplied Auxiliaries G3 & G4 G4 G3 G2 G1 Auxiliaries G1 & G2

14 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment ► General requirements for essential services : Distribution system to be such that the failure of any single circuit will not endanger or impair primary essential services and will not render secondary essential services inoperative for longer periods. No common switchgear for two primary non duplicated essential services. Protection of circuits is to be such that the fault in one circuit does not cause the loss of any essential services (Selectivity so as to obtain continuity of supply + design) Fire pump 1 Fire pump 2 Not acceptable if there are only 2 pumps !!

15 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment ► Environmental conditions The electrical components of installations are to be designed and constructed to operate satisfactorily in the environmental conditions on board. It doesn’t mean that BV ask to test all the electrical components

16 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment ► Environmental conditions Temperature (refer to UR E19 from IACS for electrical equipment installed in environmentally controlled spaces) : Humidity : General - 95% at 55°C. Air Conditioned Areas – Different values may be considered Salt mist : 1 mg/m3 of air Sea water temperature : General 0°C to +32°C. For ships classed for service in specific zones different values may be accepted Inclination Vibration EMC – Levels to be assumed are those given Pt C, Ch 3, Sec 6 or IEC 60533

17 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment ► Quality of power supply AC DC Harmonic distortions 3 % Single harmonic 5% THD

18 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment ► Material Flame retardant Moisture resistant Insulation class for windings Construction Appropriate to the environmental condition IP xy (Index of Protection : x = foreign bodies / dust, y = water) Minimum required IP is to be in accordance with Ch 2, Sec 3, Tab 2 Ex protection for equipment installed in hazardous areas (LG Carriers, Chemical Tankers, etc…)

19 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment ► Environmental conditions - (EMC) Solas V Regulation 17 defines requirements concerning the ElectroMagnetic Compatibility of electrical and electronic equipment installed on the bridge or in the vicinity of the bridge. It refers to the recommendations developed by the organization: Resolution A813(19). This electrical and electronic equipment need be tested for conducted and radiated emission only. A813(19), dated 23/11/1995, refers to IEC and IEC IEC : Maritime navigation and radio-communication equipment and systems - General requirements - Methods of testing and required test results. IEC : Electrical and electronic installations in ships - Electromagnetic compatibility. A813(19) refers to A694(17), dated 06/11/1991. A694(17) asks to take “all reasonable and practicable steps to ensure compatibility between the equipment concerned and other radio-communication and navigational equipment carried out on board.

20 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment ► Protection against explosive hazard Electrical components are not to be installed in hazardous zones Design of components in hazardous zones to be in line with IEC Several kind of design are available which are adapted to the hazardous zone Installation of components in hazardous zones to be in accordance with BV rules (in line with IBC or IGC code) Tables located in Part D are defining, according to the location, the acceptable electrical equipment for the zone (Ex component) Label plates of the Ex components clearly indicate for which gas and temperature the component is appropriate Each Ex component is supplied with a certificate delivered by a competent body, recognised by national authorities

21 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment ► List of components to be BV type approved (Pt C, Ch 2, Sec 15): Electrical equipment Rotating machines(motors, generators), converters, transformers Cables Switching devices Automation equipment Automation components ( sensors, alarm systems, remote control systems, ) Computer based systems ► Case by case approval There is always a possibility to accept a component on the case by case basis, provided evidence is supplied for this purpose (BV Type Approval scheme)

22 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment INDEX OF PROTECTION IP

23 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment ► IP rating - Definition The I.P. rating system provides a means of classifying the degree of protection of an item from dust and water afforded by electrical equipment and enclosures. The system is recognized in most countries and is set out in a number of standards including IEC The format for the I.P. rating is indicated by two digits: The first numeral indicates The protection of persons (human body) against access to dangerous parts. Depending of the voltage, an adequate clearance is to be kept between the access probe and dangerous parts (LV: no touch – HV: withstand dielectric test). The protection of equipment against the ingress of solid foreign objects. The second numeral indicates protection of internal equipment against harmful ingress of water.

24 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment INDEX OF PROTECTION IP

25 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment ► The different standards Other international standards exist. The cross references are approximative ! IEC/EN defines the IP rating system, most European countries NEMA (National Electric Manufacture ’s Association) North America UL Underwriters Laboratories Inc., North America CSA Canadian Standard Association, North America MIL-STD 810 Military standardsNorth America JIS Class 0 to 8Japanese Industry StandardJapan

26 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Electrical equipment INDEX OF PROTECTION IP

27 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Classification Rules requirements to be studied Electrical equipment

3 – Various electrical equipment

29 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Various electrical equipment TYPICAL PRODUCT DESCRIPTION AND REFERENCE OF REQUIREMENTS FOR STUDY

3.1 – Various electrical equipment - Cables

31 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Various electrical equipment - Cables ► Instrumentation Cables – 250 V ► Power and Control Cables – 1 & 3 kV

32 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Various electrical equipment - Cables VARIOUS TYPES OF CABLES

33 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Various electrical equipment - Cables ► MV/HV Power Cables – 6 to up 30 kV

34 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Various electrical equipment - Cables ► Insulating compound Temperature classes are based on IEC (insulating materials)

35 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Various electrical equipment - Cables Test for vertical flame propagation for a single insulated wire or cable (Requested by BV Rules: Cables have to be at least of the flame retardant type)

36 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Various electrical equipment - Cables Flame Propagation Test on Bunched Cables IEC Category A (7 l / m ; 40 min) Category B and C not accepted CEI 20-22/3 IEC CEI 20-22/3 This test evaluates the flame propagation of a bunch of cables each 3,5 m long. The number of test pieces should be in accordance with one of the three categories in order to provide the required total volume of non-metallic material per meter of mounted cables. The cables are mounted on a rung ladder in a metal cabinet and are subjected to burning by a ribbon flame at 750°C for a specified time. The cables must not burn for more than 2,5 m.

37 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Various electrical equipment - Cables A sample of cables is submitted under voltage rate in contact with a horizontal flame. The duration of test and flame temperature are stated by standards. During test (and after this in case of IEC and CEI 20-36), cable must continue to operate; no break or short circuit should occur in the cable. Overall Diameter 20 mm : IEC * 830°C with shock * Cancels and Replaces IEC since May 2009

38 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Various electrical equipment - Cables IEC : Amount of HCL ≤ 0.5% or 5 mg/g IEC : pH ≥ 4.3 and Conductivity ≤ 10 µS/mm

39 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Various electrical equipment - Cables Smoke Corrosivity Degree of acidity of gases: IEC /2

40 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Various electrical equipment - Cables CABLES FIRE BEHAVIOR LT ≥ 60% according to IEC series

41 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Type approval Various electrical equipment – Cables Part C Ch 2 Sec 9

42 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Production phase – Cable individual certificate Survey and routine testing Various electrical equipment – Cables Part C Ch 2 Sec 9

43 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009 Classification Rules requirements to be studied Various electrical equipment – Cables Part C Ch 2 Sec 9

44 Bureau Veritas S.A. internal use only – BVN TM ELEC1 – V0 – December 2009