Electrical Technician

DOSK CONTRACT SERVICES PTE. LTD.; Singapore; On-site; SGD 42,000 - 62,000; Full time

Job summary

DOSK CONTRACT SERVICES PTE. LTD. seeks an experienced Electrical Technician with hands-on expertise in electrical systems across industrial facilities and substations. The role requires practical knowledge of switchgear, RMU, and distribution networks, plus ability to read SLDs and update drawings.

The candidate should be capable of troubleshooting, with intermediate knowledge of PLCs and process control systems, and able to support commissioning and maintenance activities across projects.

Qualifications

• Experience with electrical systems in built environments and industrial facilities.
• Ability to read and interpret SLDs and electrical drawings.
• Competence in troubleshooting and maintenance of LV distribution and switchgear.
• Familiarity with RMU, switchgear and control panels.

Responsibilities

• Carry out inspection, preventive and corrective maintenance on electrical installations.
• Diagnose faults and perform root-cause analysis.
• Maintain LV distribution systems, switchboards, MCCs and control panels.
• Inspect components for abnormal conditions and perform testing per safety procedures.
• Support installation, testing and commissioning works.

Skills

Electrical troubleshooting

Reading schematics

Preventive maintenance

Control panels

LV distribution systems

Tools

RMU

Switchgear

Electrical drawings tools

Job description

Job Summary

We are seeking an experienced and hands‑on Electrical Technician with strong practical knowledge of electrical systems within the built environment, industrial facilities, and electrical substations.

The successful candidate shall have practical experience in electrical switchgear, switchboards, control panels, Ring Main Units (RMU), electrical distribution systems and associated control equipment.

The candidate must be competent in reading and interpreting electrical drawings and Single Line Diagrams (SLD) and should be capable of preparing, modifying and updating basic electrical drawings.

The position also requires good electrical troubleshooting ability together with intermediate knowledge of process control, PLC and industrial control systems.

Key Responsibilities

Electrical Systems & Maintenance

• Carry out inspection, preventive maintenance, corrective maintenance, testing and troubleshooting of electrical installations and equipment.


• Diagnose electrical faults and carry out systematic fault finding to identify root causes and appropriate corrective actions.


• Perform maintenance and troubleshooting of LV electrical distribution systems, switchboards, switchgear, MCCs and control panels.


• Inspect electrical components for abnormal conditions including overheating, loose connections, insulation deterioration, mechanical wear and equipment failure.


• Carry out electrical isolation, testing and reinstatement of equipment in accordance with approved safety procedures.


• Support electrical installation, modification, testing and commissioning works.


• Perform electrical wiring, cable termination, continuity checking, insulation testing and other electrical testing as required.

Switchgear, RMU & Substation

• Possess practical experience working with Ring Main Units (RMU) and electrical equipment installed within substations.


• Carry out routine inspection and preventive/corrective maintenance of RMUs, switchgear and associated equipment.


• Understand the basic operating principles and functions of MV/LV distribution systems.


• Be familiar with switchgear components, protection devices, interlocks, indication circuits and control circuits.


• Assist with testing, maintenance, fault investigation and restoration of substation electrical equipment.


• Recognise abnormal equipment conditions and es…?

Control Panels & Electrical Components

• Possess strong practical knowledge of electrical control panels and their associated components.


• Able to identify, test, replace and troubleshoot components such as:




• MCB, MCCB and circuit breakers


• Contactors and overload relays


• Control relays and timers


• Protection relays


• Current Transformers (CT) and Voltage Transformers (VT)


• Power supplies and transformers


• VSD/VFD and motor starters


• Push buttons, selector switches and indication lamps


• Sensors, limit switches and proximity switches


• Terminal blocks, isolators and other control components




• Familiar with major electrical and automation component manufacturers such as Schneider Electric, Siemens, ABB, Mitsubishi Electric, Omron, Rockwell/Allen-Bradley or equivalent.


• Able to identify suitable replacement components based on electrical ratings, specifications and application requirements.

Electrical Drawings & Documentation

• Able to read, interpret and prepare Single Line Diagrams (SLD).


• Able to read electrical schematic diagrams, control circuit diagrams, wiring diagrams, termination drawings and panel drawings.


• Able to trace electrical circuits using drawings during troubleshooting.


• Update drawings and documentation following electrical modifications or maintenance works.


• Maintain accurate maintenance, inspection, testing and fault records.

PLC, Process Control & Automation

• Possess at least intermediate knowledge of PLC and process control systems.


• Understand basic PLC architecture, digital and analogue I/O, input/output modules and field devices.


• Able to perform basic PLC fault diagnosis and identify whether faults originate from field devices, wiring