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APL Technical Services, Serving Ibadan and Nigerian at large, Ibadan (2026)

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Serving Ibadan And Nigerian At Large

05/07/2026

⚡ The Earth Wire Is Normally Not Supposed to Carry Current. It Only Operates During Fault Conditions.

The earth wire (also called the ground wire) is one of the most important safety features in an electrical installation. Unlike the live and neutral wires, it is not intended to carry current during normal operation.

Under normal conditions:

* 🔴 The live wire carries current from the power source to the appliance.
* 🔵 The neutral wire returns the current back to the power source.
* 🟢 The earth wire remains idle and carries no current.

So, When Does the Earth Wire Carry Current?

The earth wire only comes into action when there is an electrical fault.

For example, if the live wire accidentally touches the metal body of a refrigerator, water heater, washing machine, or any other metal-cased appliance, the earth wire provides a low-resistance path for the fault current to flow safely to the ground.

This helps protective devices such as fuses, circuit breakers, or Residual Current Devices (RCDs/ELCBs) detect the fault and disconnect the power quickly.

Why Is This Important?

🛡️ Protects Against Electric Shock
Without an earth wire, the metal body of a faulty appliance could become energized. Anyone touching it could receive a dangerous electric shock.

⚡ Helps Protective Devices Trip Quickly
The earth wire allows enough fault current to flow so that the circuit breaker or fuse can disconnect the faulty circuit promptly.

🔥 Reduces Fire Risk
By clearing faults quickly, grounding helps reduce overheating that could lead to electrical fires.

🏠 Improves Overall Electrical Safety
A properly grounded electrical system provides an extra layer of protection for people and equipment.

Important Safety Reminders

✅ Never remove or disconnect the earth wire.
✅ Ensure all metal-bodied appliances are properly grounded.
✅ Test your grounding system periodically.
✅ If you receive a shock from an appliance, stop using it immediately and have it inspected by a qualified electrician.

Remember:
If the earth wire is carrying current continuously during normal operation, it may indicate a wiring fault or leakage current that needs immediate investigation.

⚡ Safety Tip of the Day:
The earth wire is your silent safety guard—it stays inactive during normal operation so it can protect you instantly when a fault occurs.

APL Technical Services Ltd

We Get You Covered Technically and Electrically.

29/06/2026

⚡ Electrical Safety Starts with Proper Planning, Not Just Proper Installation

Many people focus only on the final installation—switches, cables, sockets, panels, and equipment. But in reality, a safe electrical system begins long before installation starts.

Good planning determines whether an electrical system will remain safe, efficient, reliable, and expandable in the future.

A neat installation does not automatically mean a safe installation.

Why is planning important?

📐 Correct Load Calculation
Before installation, the expected electrical demand should be considered so circuits are not overloaded.

🔌 Proper Cable Sizing
Choosing the right conductor size helps reduce overheating and voltage drop.

🛡️ Correct Protection Devices
Circuit breakers, grounding, and protective equipment should be selected before installation—not after faults occur.

🏠 Future Expansion Consideration
A well-planned system allows room for additional appliances and future upgrades.

⚡ Better Safety and Reliability
Proper planning helps reduce faults, nuisance tripping, equipment damage, and electrical fire risks.

💰 Lower Long-Term Costs
Fixing poor design after installation is often more expensive than doing it correctly from the beginning.

Examples of poor planning:

❌ Too many appliances on one circuit
❌ Undersized cables
❌ No grounding system
❌ Wrong breaker selection
❌ Poor equipment layout
❌ No allowance for future load increase

Good Electrical Planning Includes:

✅ Load assessment
✅ Circuit design
✅ Correct cable selection
✅ Grounding and protection
✅ Voltage considerations
✅ Maintenance accessibility

Remember:
Good installation shows workmanship. Good planning creates safety.

⚡ Safety Tip of the Day:
The safest electrical system is usually the one that was properly planned before the first cable was installed.

APL Technical Services Ltd

We Get You Covered Technically and Electrically.

24/06/2026

Do not touch a live wire

24/06/2026

🔋 Tubular Battery vs Lithium Battery — Which One Is Better?

There is no single battery that is best for everyone. The right choice depends on your budget, usage pattern, backup time, maintenance preference, and long-term goals.

🔶 Tubular Battery

Tubular batteries are commonly used with home inverter systems and are known for their reliability and lower initial cost.

Advantages:
✔ Lower purchase cost
✔ Common and widely available
✔ Suitable for long backup applications
✔ Easier to replace in many locations

Things to consider:
⚠ Heavier and bulkier
⚠ Requires periodic maintenance (for flooded types)
⚠ Slower charging compared to lithium
⚠ Lower usable battery capacity

Best for:
Homes looking for a lower initial investment and regular backup power.

⸻

🟢 Lithium Battery

Lithium batteries are newer technology designed for higher efficiency and easier maintenance.

Advantages:
✔ Longer lifespan in many use cases
✔ Faster charging
✔ Lightweight and compact
✔ Higher usable battery capacity
✔ Minimal maintenance

Things to consider:
⚠ Higher initial cost
⚠ Requires compatible inverter/charging settings

Best for:
Users who want efficiency, faster charging, lower maintenance, and long-term performance.

⸻

Quick Comparison

🔋 Initial Cost:
Tubular → Lower
Lithium → Higher

⚡ Charging Speed:
Tubular → Slower
Lithium → Faster

🛠 Maintenance:
Tubular → More attention required
Lithium → Minimal

📈 Efficiency:
Tubular → Good
Lithium → Higher

🏠 Space Requirement:
Tubular → Larger
Lithium → Smaller

Bottom Line

Choose Tubular if your priority is lower starting cost and dependable backup.

Choose Lithium if your priority is long-term efficiency, convenience, and faster charging.

⚡ Safety Tip of the Day:
No matter the battery type, proper installation, correct inverter settings, ventilation, and battery protection matter just as much as the battery itself.

APL Technical Services Ltd

We Get You Covered Technically and Electrically.

23/06/2026

Always get a professional to do your work Professional Electrician & Installer Electrical Engineering

23/06/2026

⚡ Water Heaters Should Always Be Properly Grounded to Reduce the Risk of Electric Shock

Water heaters combine two things that require extra care—electricity and water. Since water can increase the possibility of current flow, proper grounding (earthing) becomes an important safety measure.

Grounding provides a safe path for fault current to travel into the earth instead of passing through a person.

What does proper grounding do?

🛡️ Helps Protect People from Electric Shock
If an internal electrical fault develops inside the heater, grounding helps direct dangerous current away from the metal body of the heater.

⚡ Reduces Touch Voltage Risk
Without grounding, the metal casing could become energized during a fault condition.

🔥 Helps Prevent Equipment Damage
Grounding works together with protective devices to reduce the impact of certain electrical faults.

🏠 Improves Overall Electrical Safety
A properly installed electrical system helps make water heater operation safer and more reliable.

Signs That May Require Inspection

⚠️ Mild tingling sensation when touching the heater or connected pipes
⚠️ Circuit breaker tripping repeatedly
⚠️ Burning smell or unusual heating
⚠️ Damaged cables or loose electrical connections

Important Safety Practices

✅ Install water heaters according to manufacturer instructions
✅ Ensure grounding and protective devices are correctly connected
✅ Use correct cable sizes
✅ Keep electrical connections dry and secure
✅ Have installation and maintenance done by a qualified person

⚠️ Important: Grounding improves safety, but it is only one part of protection. Proper installation, protective devices, and routine inspection also matter.

⚡ Safety Tip of the Day:
Water and electricity should always be treated with extra caution—never ignore signs of electrical faults around water heaters.

APL Technical Services Ltd

We Get You Covered Technically and Electrically.

20/06/2026

⚡ The Higher the Current Flowing Through a Conductor, the More Heat It Generates

Whenever electric current flows through a conductor (such as a wire or cable), some electrical energy is naturally converted into heat.

A small amount of heat is normal, but when too much current flows through the conductor, the heat produced increases significantly.

This is why electrical systems must be properly designed and protected.

Why does this happen?

Every conductor has electrical resistance. As current passes through that resistance, energy is released as heat.

The higher the current:
➡ More heat is produced
➡ Cable temperature rises
➡ Insulation experiences more stress

If this heat becomes excessive, it can create serious problems.

Possible effects of excessive current:

🔥 Overheating of wires and cables
Cables may become dangerously hot.

⚠️ Damage to insulation
Heat can weaken or melt cable insulation.

⚡ Short circuits and electrical faults
Damaged insulation may allow conductors to touch.

🏠 Electrical fire risk
Overheated conductors are a common cause of building fires.

📉 Reduced equipment lifespan
Constant overheating can shorten the life of appliances and electrical systems.

Common causes of excessive current:

✔ Overloading circuits
✔ Using undersized cables
✔ Faulty appliances
✔ Loose electrical connections
✔ Poor electrical design

How to reduce heat generation

✅ Use the correct cable size
✅ Avoid overloading sockets and circuits
✅ Install proper circuit protection
✅ Ensure good electrical connections
✅ Carry out routine maintenance

Remember: A wire that becomes hot repeatedly is usually giving a warning sign that something needs attention.

⚡ Safety Tip of the Day:
Electrical cables should carry current safely—not operate as heating elements.

APL Technical Services Ltd

We Get You Covered Technically and Electrically.

20/06/2026

⚡ The Higher the Current Flowing Through a Conductor, the More Heat It Generates

Whenever electric current flows through a conductor (such as a wire or cable), some electrical energy is naturally converted into heat.

A small amount of heat is normal, but when too much current flows through the conductor, the heat produced increases significantly.

This is why electrical systems must be properly designed and protected.

Why does this happen?

Every conductor has electrical resistance. As current passes through that resistance, energy is released as heat.

The higher the current:
➡ More heat is produced
➡ Cable temperature rises
➡ Insulation experiences more stress

If this heat becomes excessive, it can create serious problems.

Possible effects of excessive current:

🔥 Overheating of wires and cables
Cables may become dangerously hot.

⚠️ Damage to insulation
Heat can weaken or melt cable insulation.

⚡ Short circuits and electrical faults
Damaged insulation may allow conductors to touch.

🏠 Electrical fire risk
Overheated conductors are a common cause of building fires.

📉 Reduced equipment lifespan
Constant overheating can shorten the life of appliances and electrical systems.

Common causes of excessive current:

✔ Overloading circuits
✔ Using undersized cables
✔ Faulty appliances
✔ Loose electrical connections
✔ Poor electrical design

How to reduce heat generation

✅ Use the correct cable size
✅ Avoid overloading sockets and circuits
✅ Install proper circuit protection
✅ Ensure good electrical connections
✅ Carry out routine maintenance

Remember: A wire that becomes hot repeatedly is usually giving a warning sign that something needs attention.

⚡ Safety Tip of the Day:
Electrical cables should carry current safely—not operate as heating elements.

APL Technical Services Ltd

We Get You Covered Technically and Electrically.

19/06/2026

🔋 Tubular Battery vs Lithium Battery — Which Is Better?

Choosing the right battery depends on your budget, usage, and long-term goals.

Tubular Battery
✅ Lower upfront cost
✅ Widely available
✅ Good for backup systems
✅ Easier replacement in many locations

❌ Slower charging
❌ Requires more space
❌ Shorter lifespan compared to lithium
❌ Heavier

Lithium Battery
✅ Faster charging ⚡
✅ Longer lifespan 🔋
✅ Higher usable capacity
✅ Lighter and more compact
✅ Better efficiency

❌ Higher initial cost
❌ Requires compatible charging settings

Quick Guide:
• Want lower starting cost → Choose Tubular
• Want longer life + better performance → Choose Lithium

Example:
If you use solar daily and cycle batteries often → Lithium usually gives better long-term value.
If you mainly need backup during outages and want lower initial cost → Tubular can still be a strong option.

Both can work well when correctly sized and properly maintained.

19/06/2026

Have you experienced this before? Wires being stolen after installation is done.

APL Technical Services

05/07/2026

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Tuesday	09:00 - 18:00
Wednesday	09:00 - 18:00
Thursday	09:00 - 18:00
Friday	09:00 - 18:00
Saturday	09:00 - 18:00