Job number: 34980
Publication date: 03-28-11
Weekly working hours: 40
Branch: Production
Location: Offshore
Country: Nigeria,
ELECTRICAL & HVAC MAINTENANCE TECHNICIANLocation & scheme: The working environment is international and multicultural and demands considerable experience in working with people from diverse background. Offshore rotations, regime to be defined at later date (2x2 or 4x4)
Organisation
Job description
1. Good understanding of Equipment Terminology and various process equipment.
Understand working principle of main electrical equipment: voltage & current transformers, electrical motor, alternator, feeder, UPS, battery, speed variator soft starter and gradator, HV/LV switchboard, lighting and heat tracing panel… For those, be aware of their preventive maintenance requirements. Be aware of CBM (thermography) requirement and purpose.
Understand principles and know the different systems of earthing (IT, TT, TN and DC unearthed system).
Have a basic knowledge of working principle of a PLC. Logic diagram with module: AND/OR, NAND/NOR, clock, delay, latch, memory, micro processor... Understand inhibit, alarm and trip concepts.
Understand the principle of electrical protection: short circuit, over load, earth fault, reverse power, transformer, alternator and motor specific protections.
Be knowledgeable on explosion proof materiel and associated requirements.
For electrician technicians only and for high voltage panel: be able to identify all cubicles and their equipment. Understand interlocking systems in between cubicles.
For HVAC technicians only, understand working principle of HVAC equipment with different technology (chiller and reciprocating compressor, split units…).
2. Maintenance
Understand preventive, corrective predictive maintenance and maintenance plan concepts. Have a basic knowledge of the CMMS (be able to issue a notification, read, interpret and complete work orders…). Be able on a given and simple preventive work order to prepare tools, identify spare parts and adapted procedure or work instruction.
3. Practical skills
Know how to select and use the available and necessary hand tools for electrician (including special insulated tools).
Be familiar with construction practise: laying, pulling and connecting cables (using cables glands, terminals blocks, cable lugs, bus bar, sealing compound…)
Correct use and handling of multimeters, clip on ammeters, Ohmmeter, earth tester (megger), earth leakage kit and recorder
4. Maintenance know-how
Be able to maintain and troubleshoot small electrical installation like lighting and heat tracing circuit.
Be able to identify the different types of cables (including ground ones) connect those properly (using lugs) and perform their proper laying (in trenches, on cable tray…). Select, use and install the appropriate cable glands and tags.
Be able to do preventive maintenance on non-critical equipment: batteries, motor, alternator, breaker, transformer, contactor and switchboard.
Be able to test and verify alarms, trip and interlock settings.
Be able to perform insulation and continuity tests
LV Electrical equipments: be able to dismantle, replace defective parts, reassemble, reconnect and check the system. Identify all accessories.
5. Safety at work
Knowledge of electrical habilitation requirements and be certified as required.
Be aware of permit to work and electrical isolations requirements. Be aware of gas test requirement.
Be knowledgeable on PPE requirement and MSDS interpretation.
Be aware of area classification, marking for hazardous area ATEX rules and Ex explosion proof materials.
Correctly report anomalies, accidents, near misses.
Job requirements
Qualification:
Will need to be time served, possibly with an ONC/HNC minimum qualification in electrical engineering.
Professional Experience (number of years): Minimum of 5 years in the oil and gas/petro-chemicals industries.
Knowledge of the safety regulations and working in a hazardous area.
Ability to take initiative within job responsibilities. Interpret job requests, test to confirm problem and propose repair methods.
Able to stand in for the Supervisor and lead less experienced technician.
Be able to work with a large group of diverse personalities and nationalities.
Theoretical knowledge
Petroleum: Have a basic understanding of facilities / process (from well to export). Be knowledgeable of hydrocarbons behaviour and associated risks (explosion, asphyxia…).
Computer: Be able to produce a report using Word, be able to perform simple calculation with Excel. Have been introduced to internet and mails.
Physics: Understanding and use of basic laws and units of physic (resistance, inductance, DC & AC current and voltage, frequency, active and reactive power…). Be able to differentiate low and high voltages.
Engineering:
Be able to read and use drawings (single line and schematic diagrams), vendor documents, name plate. Be knowledgeable of electrical symbols.
Possess notions on cable sizing and voltage dropping.
Be able familiar with a general facilities electrical network philosophy: main generation, emergency generator, switchboard and UPS. Have a basic understanding of inter-tripping and interlocking action, load shedding and load sharing modes.
For electrician technicians only, have a basic understating of cathodic protection system.
Locals Only
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