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Checklist For Electrical Maintenance

Checklist For Electrical Maintenance

Checklist for Electrical Maintenance

A proper Industrial Electrical Maintenance prevents complex and costly breakdowns. It involves evaluating and servicing industrial equipment and assets to maintain them in satisfactory operational conditions. It is essential for industries, public buildings, and residential buildings.

This article emphasises the importance of industrial electrical maintenance. By the end of this guide, you will have a good understanding of an electrical maintenance checklist and its components. 

Why is Electrical Maintenance essential?

Conducting electrical machine maintenance regularly is fundamental to having a well-managed operation. Not all asset or equipment failures are avoidable, but they can be prevented by conducting regular tests and managing reports.

Some benefits of an electrical maintenance checklist are:

  • Reduces the risk of an unscheduled power outage by as much as 66%. 
  • Prevents unexpected failures and overload

Looking For Best Industrial Electrical Maintenance Services? Check Our Reliable Set Of Services At Laxmi Associates. Hire Us Today To Get Your Building Checked.

Checklist For Industrial Electrical Maintenance

A good maintenance checklist helps maintenance teams protect the business from unanticipated breakdowns and costly repairs. Maintenance checklists and logbooks are tools used to record the checking, repairing, and servicing to ensure proper maintenance during future electric maintenance inspections

Electrical Maintenance checklists are commonly used for areas like:

  • Residential Locations: (Buildings, houses, apartments, etc.) 
  • Industrial and Commercial Establishments: (Factories, shopping malls, hotels, entertainment areas, etc.)
  • Healthcare and Special Residencies: (Hospitals, theatres, assembly lines, storage areas, etc.).
Checklist For Industrial Electrical Maintenance

Components of an Electrical Maintenance Checklist

There are various components that need to be checked when it comes to an industrial maintenance checklist. To evaluate the health of various equipment, specific tests like  Relay and Circuit Breaker Tests, Oil Tests, Dissolved Gas Test, or SF6 Gas Leak Testing are conducted by contracted specialists. 

An Electric Machine Maintenance checklist should consist of the following components:

  • Checking and testing of all transformers
  • Inspecting and testing the AFCI (arc fault circuit breakers)
  • Inspecting and testing GFCIs (ground fault circuit breakers)
  • Inspecting and testing voltage regulators
  • Checking electrical panels
  • Verifying whether electric meters work correctly
  • Checking and cleaning motor controls
  • Inspecting and testing switches and gears
  • Inspecting the distribution and termination of the wiring
  • Checking all grounding and overcurrent protection devices
  • Inspecting lights and light fixtures, including Recession, Security, HID and fluorescent
  • Ballast and lamp replacement
  • Special systems, such as Generators, Uninterruptible power supply (UPS) systems, Telecommunications, battery power, video and cable 


The more effective the preventive measures are, the greater the chances of having facilities run without fault for longer. A good maintenance checklist helps the maintenance team protect the business from unanticipated breakdowns and costs.  Laxmi Associates is an expert pioneer in power system equipment testing. We aim to maximise the life of electrical equipment and deliver reliable Industrial electrical maintenance services.



1. What Is An Electric Maintenance Inspection?

An Electric Maintenance inspection is a process that evaluates the condition of residential buildings, service equipment, and various industrial assets. These Maintenance inspections help identify faults and failures before they worsen, preventing short circuits and costly repairs.

2. Why Is Electric Maintenance Important?

Electrical maintenance is vital for the following:

  • reliability
  • safety
  • efficiency
  • Keeping records

3. What is the importance of a Maintenance checklist?

Keeping records of electrical machine maintenance ensures timely inspections and repairs. A maintenance checklist tracks the results of tests conducted previously to help identify potential failures. It also informs technicians of the equipment that may be overdue for maintenance and helps them analyze problems and malfunctions.

Surge Arrester Types

Surge Arrester Types

Surge Arrester Types

The terminologies surge arrester and lightning arrester often confuse even the experts. While both surge and lightning arresters protect your electrical appliances from accidents, there is little difference between them. 

This article discusses surge arresters, their types, and how they differ from lightning arresters. 

What is Surge Arrester?

What is Surge Arrester

Surge arresters prevent damage to electrical devices due to high-voltage transients produced by internal or external activities. A surge arrester’s primary function is to protect from high voltages by discharging surge currents.

What are the different types of surge arresters?

On the basis of rating of voltage levels, protecting ability, and stability in pressure support, the surge arresters are classified into the following types:  

1.) Distribution arresters

Distribution arresters have less energy-discharging ability and provide minimal surge protection. Therefore, this arrester is primarily employed in medium voltage network types.

2.) Station arresters

These arresters provide better protection showing minimal discharging voltage levels, more energy absorption and high-pressure relief. 

The important applications of station arresters include strong surges and huge substations.

3.) Intermediate arresters 

As the name suggests, Intermediate arresters possess medium-level protecting capabilities and medium energy discharging capacity. 

What is the working principle of a surge arrester?

When the voltage received by the electrical devices is higher than the fixed voltage, they may blow up or get damaged. That is why a surge arrester protects these devices from damage, ensuring that high voltages do not travel through the electrical system. 

The surge arrester diverts the extra voltage into the earth wire, inhibiting the flow through electronic devices and simultaneously allowing the normal voltage to continue along its path.  

Surge arrester and Lightning arrester

difference between surge arrester and lighting arrester

Lightning arresters are devices installed to shield power lines and homes from dangerous power surges. They protect various electrical equipment and systems from high voltage surges caused by lightning strikes and their effects.

The table below distinguishes surge and lightning arresters. 

Surge Arresters 

Lightning arresters 

Protect various electrical appliances within the home 

Protects the electrical appliances outside the home 

Installed in the main panel board  

Installed in the outside panel board 

Interrupt the surges & divert the surplus energy to the ground 

Redirect the flow of electricity directly to the ground 

Its various types include low-voltage, distribution, neutral protection, fiber tube, network, signal, direct current, stations, etc.

The various types include metal oxide, electrolyte, multi-gap, horn, sphere, and rod.

Can be used only as a surge arrester 

Can also be used as a surge arrester 


Surge arresters and lightning arresters play a crucial role in protecting your electrical appliances. The difference lies in how they function. 

Visit us at Laxmi Associates if you wish to learn more about surge arresters and electrical appliance protection.

You can gain a better understanding of it by reading about the “Surge Arrester Working Principle” as well.

What are HT cable types?

What are HT cable types?

HT Cables Types

H-type cables do not have belt insulation. The screening of individual cores remains thin and flexible to prevent much power dissipation. The screens are thin so that there is hardly any current induced. The advantage of H cable is that separation of cores by mechanical displacement will not stress the dielectric. 


Transformer Cooling Methods: Brief Explanation

Transformer Cooling Methods: Brief Explanation

Transformer Colling Method

Cooling of transformers is a process where the heat generated is treated back to a safe value. The cooling of transformers is done through various methods. 

The primary reason for transformer heat up is the loss of eddy current, iron, copper loss, and hysteresis. Out of all the major reasons behind the transformer’s heating up is the copper loss known as I2R loss.