Common Electrical Safety Risks in Industrial Control Panels, And How to Prevent Them

Industrial control panels are critical to operations, but when poorly designed or

maintained, they become serious electrical safety risks.

Many of these risks are not obvious.

They are built into the system and only show up during faults, maintenance, or audits.

Safe Control Panel vs High-Risk Control Panel

Area	Safe Control Panel	High-Risk Control Panel
Isolation	Clearly defined and accessible	Unclear or unsafe
Earthing	Properly designed	Incomplete or incorrect
Protection	Coordinated and reliable	Poorly specified
Wiring	Structured and organised	Disorganised and exposed
Layout	Safe and accessible	Overcrowded
Documentation	Accurate and aligned	Missing or outdated
Compliance	IEC and BS aligned	Assumed or inconsistent
Maintenance	Safe and efficient	Risky and time-consuming

Safety is not visible on day one, it shows under pressure.

Inadequate Isolation of Power

The risk:

• No clear or accessible isolation points

• Isolation devices not labelled

• Circuits remaining live during maintenance

Why it matters:

• Increased risk of electric shock

• Unsafe maintenance practices

Best practice:

• Clearly defined, lockable isolation points

• Full lockout/tagout (LOTO) capability

• Labelling aligned with schematics

Poor Earthing (Grounding)

The risk:

• Incorrect or incomplete grounding

• High resistance paths

• Missing continuity

Why it matters:

• Shock risk

• Equipment damage

• Fire hazards

Best practice:

• Proper earthing design

• Regular testing and verification

Overloaded Circuits and Components

The risk:

• Components exceeding rated capacity

• Incorrect fuse or breaker sizing

• No load analysis

Why it matters:

• Overheating

• Fire risk

• Reduced reliability

Best practice:

• Correct component selection

• Load calculations during design

Inadequate Electrical Protection

The risk:

• Missing or incorrect protective devices

• Poor coordination between circuits

Why it matters:

• Faults escalate instead of being contained

• Wider system shutdowns

Best practice:

• Correct selection of MCBs, fuses, and relays

• Coordinated protection design

Mixing High and Low Voltage Systems

The risk:

• Power and control wiring routed together

• No segregation

  
  

Why it matters:

• Electrical interference

• Increased contact risk

• Fault propagation

Best practice:

• Physical and electrical segregation

• Clear zoning within panels

Poor Cable Management

The risk:

• Loose or disorganised wiring

• Damaged insulation

• No containment

Why it matters:

• Short circuits

• Difficult fault finding

• Increased maintenance risk

Best practice:

• Structured cable routing

• Proper containment systems

Lack of Arc Flash Consideration

The risk:

• No arc flash assessment

• No PPE guidance

• Poor fault containment

  
  

Why it matters:

• Severe injury or fatality risk

• Major equipment damage

Best practice:

• Arc flash risk assessment

• Labelling and PPE requirements

• Design to reduce fault energy

Inadequate Labelling and Identification

The risk:

• Unlabelled components

• Inconsistent naming

Why it matters:

• Human error

• Incorrect operation or isolation

Best practice:

• Clear, consistent labelling

• Alignment with documentation

Poor Panel Layout and Accessibility

The risk:

• Overcrowded components

• Limited maintenance access

• Unsafe working positions

Why it matters:

• Increased risk during intervention

• Longer exposure to live systems

Best practice:

• Design for safe access

• Adequate spacing and layout

Outdated or Missing Documentation

The risk:

• Schematics do not match reality

• No record of modifications

Why it matters:

• Engineers working without full visibility

• Increased risk of unsafe decisions

Best practice:

• Up-to-date AutoCAD or EPLAN drawings

• Documentation maintained across lifecycle

Environmental Factors Not Considered

The risk:

• Dust, moisture, or heat exposure

• Incorrect IP ratings

Why it matters:

• Increased failure rates

• Long-term electrical hazards

  
  

Best practice:

• Panels designed for environment

• Correct enclosure selection

Lack of Regular Inspection and Testing

The risk:

• Degradation goes unnoticed

• Minor issues escalate

Why it matters:

• Increased likelihood of failure or incident

Best practice:

• Scheduled inspections

• Preventative maintenance approach

The Bigger Problem, Safety Risks Are Designed In

Most electrical safety issues do not come from misuse.

They come from:

• Poor initial design

• Lack of standards

• Inconsistent engineering

• No lifecycle thinking

This is where risk is introduced long before operation.

How to Reduce Electrical Safety Risks

The safest control panels are:

• Designed to recognised standards, IEC and BS

• Built with clear structure and labelling

• Fully documented and traceable

• Easy to access and maintain

• Considered across the full lifecycle

How Stratos Helps You Stay Compliant and Safe

At Stratos Control Systems, safety is built into every stage of design and delivery.

We deliver systems that:

• Prioritise electrical safety from day one

• Align with IEC and British Standards

• Are structured, clear, and maintainable

• Reduce risk across operations

We do not just build control panels.

We build systems that are safe to operate, safe to maintain, and built to last.

When to Take Action

You should review your systems when:

• Planning a control panel upgrade

• Preparing for an audit

• Experiencing recurring electrical issues

• Managing evolving systems without documentation

• Concerned about safety or compliance

Electrical Safety Risks FAQ's

What are the most common electrical safety risks in control panels?

Common risks include poor isolation, incorrect earthing, overloaded circuits, inadequate protection, and lack of documentation. These issues increase the likelihood of faults, downtime, and safety incidents.

Why is electrical safety important in industrial control panels?

Electrical safety ensures systems can be operated and maintained without risk of shock, fire, or failure. Poor design increases both operational risk and legal exposure.

How can electrical risks in control panels be reduced?

Risks can be reduced through proper design, standards compliance, structured wiring, clear labelling, and regular inspection and maintenance.

What standards apply to control panel electrical safety?

Control panels typically follow IEC standards and British Standards (BS), along with CE or UKCA compliance depending on application and location.

Talk to an Automation Specialist

If you want to reduce electrical risk and ensure your systems are compliant and maintainable, early intervention makes a measurable difference.

Speak to an Engineer