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Testing and Tagging Commercial Spaces

Commercial testing and tagging services ensure that appliances are safe and ready to use in a commercial environment. New Zealand work safety standards outline requirements for companies to make sure their electrical appliances are safe. One solution is to test and tag your appliances.

Testing and tagging helps to label your appliances as safe at the time of testing. With regular testing companies can help catch faults and then repair or replace the appliance before it can cause any harm.

Testing and tagging doesn’t need to be performed by a registered electrician, but it does need to be carried out by a competent individual with a comprehensive understanding of the standards involved.

Who needs to get their appliances check

If you are operating a business of any kind then it is safe to say that all equipment needs to be electrically safe to use. Failure to ensure the safety of your appliances could cause serious harm or damage to property. 

Some industries that could benefit from commercial test and tag services are:

  • Schools
  • Hotels and motels
  • Hospitals
  • Retail stores
  • Industrial businesses
  • Other large commercial spaces

What happens if you don’t test and tag

Safety should always be your number 1 priority in your commercial space. Without testing and tagging it can be impossible to know whether or not your appliances are safe. If left alone then unassuming electrical appliances could cause problems. If someone was to be injured then WorkSafe would have no choice to get involved.

Testing and tagging is an effect way to ensure your appliances are compliant. Although not required by law, it helps business maintain their electrical appliances.

How often should you test and tag your commercial space?

Depending on your industry the frequency at which you should test will vary. For example, commercial industries such as mining, construction and demolition are require quarterly testing.

Regular commercial spaces such as an office or store appliances may only need to be tested once or twice a year. Some devices may only need testing every 2-5 years.

The main factor that will influence the frequency at which you test and tag your commercial space is your risk tolerance. If you know your appliances go through a beating throughout the year, it may be safer to test more regularly. Ensuring your electrical appliances are functioning correctly and safely is the point of the regulations after all.

If you own or operate a commercial space and have not tested or tagged your appliances then you are at the mercy of your appliances integrity. Here at Metrotest offer a wide range of test and tag services including testing and tagging commercial spaces.

Once we have tested and tagged your appliances we can schedule regular maintenance to take the headache out of maintaining your electrical appliances.

Call 0800 638 768 or contact us online and get your commercial appliances tested and tagged. Keep your commercial space safe.

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What do Test and Tag Colours Mean?

Every time you get an appliance tested, It needs to be marked with one of the appropriate test and tag colours. Primarily there are just four colours used when testing and tagging in New Zealand. Red, green, blue, yellow are the main test and tag colours, however orange, white, black, burgundy and grey can also be used.

Red, Green, Blue, Yellow Tags and what they mean

It is actually incredibly simple. The colour of the tag refers to when the appliance was tested. When testing and tagging the techniques should attach a tag to the appliance signifying when the device was tested.

The colour of the tag helps the next technician know when it was last tested and if it is due to be tested again. Different colours indicate which month range an appliance was last tested.

  • Red tag: December, January, February
  • Green tag: March, April, May
  • Blue tag: June, July, August
  • Yellow tag: September, October, November

These coloured labels are primarily used in construction, mining and demolition industries. Under AS/NZS 3012 standards, appliances in these industries are required to be tested quarterly. So, each coloured tag refers to which quarter of the year the appliance was tested.

Orange, White, Black, Burgundy and Grey Tags

Other industries may not need to have their appliances tested as frequently. Some things such as home or office appliances may only need to be tested once or twice a year. Some devices may only need a test once every two or so years. This is when these test and tag colours may be used.

  • Orange: 6 Month Tag (January – June)
  • White: 6 Month Tag (July – December)
  • Black: Yearly Tag
  • Grey: 2 Year Tag
  • Burgundy: 5 year Tag

Hopefully this guide has cleared up what the different test and tag colours mean. If you need to resupply on test and tag colours visit our online store to find high quality tags.

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Why Test and Tag Training is Absolutely Necessary

Legally to Test and Tag under the AS/NZS3760 standard one does not need to be an electrician. However, one must be deemed competent in order to test and tag. The best way for you to build up your confidence and competence is to take one of our test and tag PAT training courses

Legally you are not required to do any training before you go out and start testing. So, why then would one go out of their way to train themselves? Sure you could save yourself a couple bucks, but let’s look at some of the reasons why test and tag PAT training is necessary in 2022.

Test and Tag: Health and Safety 

Testing and tagging can actually be rather dangerous. Typically certified electricians are ones testing and tagging. However this isn’t always the case. Since regular people can buy themselves a portable appliance tester and start tagging, they may not know the significance or danger presented by electricity. Even then, because the standard does not require any kind of training to legally tag a blasé approach may lead to mistakes. After all, the AS/NZS3760 provides a process to reduce the risk of electrical shock to users of electrical equipment. Not following the standard may put yourself in danger.

Companies who test and tag their appliances tend to have strict health and safety policies. These policies are designed to limit their liability. Furthermore, health and safety legislation in New Zealand requires portable devices to be free from defects. Professional training can be one way of meeting these requirements.

Liability: Understanding the standard

Although the standard does not technically restrict who can test and tag, it does outlines what is required of a technician. These regulatory requirements include record keeping, tag information and who can do what. This list is by no means exhaustive.

Negligence of these requirements could see you personally liable in the event of an accident caused by improper test and tag procedures. Knowing your stuff is the best way to ensure the service you provide is quality and safe.

Whether you are doing your own DIY testing or are planning to work as a test and tag specialist it is vital that you get the necessary training. Failure to follow the regulations could land you a fine of upwards of $10,000!

Book a test today or contact us online today.

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EV Charger Testing: The Tools for the Job

An EV Charging station, like any electrical appliance, needs testing to ensure they are working correctly and safely. As electric cars are rather expensive, any issue that may arise from a faulty charging station could result in costly damage to the fragile electronics and batteries that power your EV.

How does EV charger testing work?

In order to properly carry out EV charging station testing one needs to be able to simulate the typical load conditions experienced by the charger. This tricks the charger into believing it is charging an EV while you carry out your testing.

Types of EV Charging station testers

Here at Metrotest we have a wide selection of testers fit for a variety of jobs. With EV charging station testing currently booming we thought we should outline some of our favourites.


The MPI-540 multifunction electrical installations meter is a go to choice for testing home appliances. But did you know it is the perfect tool for testing EV charging stations? This device allows for a truly straight forward testing experience, and can as mentioned be used for a variety of other tests. This makes it a must pick for anyone looking for a universal work horse.


The EVSE-01 is an adapter designed for use with your multifunction electrical installations meter. Allowing you to easily interface with any AC electric vehicle charging stations with a type 2 connector. The EVSE-01 can also perform tests for both 1-phase and 3-phase stations. 

With 1 in 5 cars sold in New Zealand, September, 2021 were electric more people are installing chargers in their home than ever. Also it is recommended to test these chargers fairly regularly, as much as once every 12 months. If you need to expand your testing arsenal to account for EV charging stations check out our selection online so you don’t miss out on the action.

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RCD vs PRCD: Why are they needed?

A portable RCD is an essential part of any testers kit for any test & tag job. But what are they and why are they so vital for testing and tagging electrical devices. More importantly, how do portable RCD differ from a regular RCD?

What is a RCD?

A Residual Current Device is used to prevent electrical shocks or electrical fires. By measuring the current in a system it can detect whether the electricity is flowing through an unintended path and automatically shut off the circuit. For example if electricity enters a person the residual Current Device will cut the power before it can give you too nasty a shock. Potentially saving a life or preventing an electrical fire.

Typically you can find RCDs throughout your home in places such as in the fuse box. They may also be built into socket outlets and some extension cords.


What is a PRCD?

A portable RCD is an especially useful piece of kit for any electrician or tester. By having a PRCD the user can guarantee their safety when working with an appliance that is of safety concern. It can plug into any standard socket and automatically cut the power when it detects any issues.

In fact, portable RCDs are so important they are often built into portable appliance testers

Whether you are a professional or planning on doing any DIY involving appliances, an RCD is a must have. Metrotest has a selection of reliable RCDs to choose from. Visit our store or get in contact with us to find the right portable RCD for you.

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Introducing the MET20: Facial Recognition Scanner & Covid-19 Temperature Scanner

Metrotest are pleased to announce the availability of a facial recognition scanner, complete with a covid temperature scanner.

The MET20 Facial scanner is an all-in-one Facial recognition and Temperature scanner with the ability to provide access control and staff attendance details. In the case of the workplace, the MET20 can allow access to authorised individuals and/or prevent those with a dangerous fever from entering. Thereby protecting others from the spread of diseases such as covid-19.

Facial Recognition Scanner Security benefits

This amazing little unit uses thermal imaging along with artificial intelligence assisted facial recognition software to accurately record body temperature as well as control door entry.

This is an ideal device that can be used in a wide range of environments and applications. Such as in areas where the management of people’s movement is important for security reasons. The exit and entrances of the following may benefit from a system that does not require easily lost or stolen keycards:

  • Schools and Universities 
  • Factories and industrial manufacturing
  • Healthcare environments such as hospitals and research laboratories
  • Offices
  • Research and development

Increased security can help protect the sensitive information, expensive equipment, or the spread of viruses to the sometimes large workforces.

Covid-19 Temperature Scanner for public safety

If security is not of importance, the MET20 can function solely as a covid-19 temperature scanner. Perfect for the entrances of shops and other areas frequented by visitors. Stopping the spread of the virus.

The MET20 Facial recognition and covid-19 temperature scanner is only active when a scan has been completed and uploaded. Meaning, it does not passively scan those simply walking past. So, no need to worry about big brother!

Available from $1490+GST per unit these are an amazing addition to any work site and help to keep everyone safe, while providing excellent security. Contact us online or visit our store for more details.