Running out of power points is common, whether you are working in an office, workshop, retail store or at home. The usual solution is to reach for a double adaptor or power board.
But adding more sockets does not automatically mean you can safely connect more equipment. Double adaptors and power boards can create electrical risks when they are overloaded, damaged or used incorrectly.
In workplaces, where electrical equipment may be used every day, these problems are particularly worth paying attention to.
Are Double Adaptors Safe?
Double adaptors can provide an extra socket when you need one, but they are not a good long term solution. One of the main problems is that many double adaptors do not offer the same overload protection found in better quality power boards.
There can also be extra strain on the wall socket when several devices are connected through one adaptor. If the adaptor becomes loose, damaged or overheated, it can increase the risk of an electrical fault.
If you regularly need more outlets in the same area, having additional power points installed by a qualified electrician is usually a better long term solution.
Why Can Double Adaptors Become Dangerous?
The adaptor itself is not always the only problem. How it is used matters just as much.
Problems can occur when:
- several appliances are connected to one wall outlet
- high power equipment is connected through an adaptor
- another adaptor or power board is plugged into it
- the adaptor is loose in the wall socket
- plugs or sockets show signs of damage
- the adaptor becomes unusually warm during use
A double adaptor may seem harmless because everything continues working normally. That does not necessarily mean the connection is safe.
Heat, loose connections and damaged electrical components can develop before there is an obvious failure.
Can You Plug a Power Board Into a Double Adaptor?
It is better to avoid it.
Connecting a power board through a double adaptor allows several appliances to draw power through a single connection. This makes it easier to overload the outlet and creates additional connection points where faults can occur.
The same principle applies to connecting one power board to another.
If you need six or eight outlets in one part of a workplace, adding adaptors on top of adaptors is not a good fix. It is worth looking at why that many outlets are needed and whether additional permanent power points should be installed.
Are Power Boards Safer Than Double Adaptors?
A good quality power board can be a safer option, particularly when it includes overload protection. Many modern power boards also include individual switches, reset buttons or surge protection.
But a power board still needs to be used correctly. Having six sockets on a board does not mean six high powered appliances should be connected at the same time.
The total electrical load still matters.
How to Use a Power Board Safely
A few simple checks can help reduce the risk of electrical problems.
Do Not Overload It
Avoid connecting too many high power appliances to one power board. Equipment such as portable heaters can draw considerably more power than items such as computer monitors or phone chargers.
Where appropriate, high power equipment should be connected directly to a suitable wall outlet rather than sharing a power board with several other appliances.
Check the Board Before Using It
Take a quick look at the power board and its lead before plugging equipment into it.
Watch for:
- cracked casing
- damaged plugs
- exposed wiring
- loose sockets
- scorch marks
- unusual heat
- discolouration
If something does not look right, stop using it.
Keep It Uncovered
Power boards need airflow. Do not cover them with rugs, boxes, clothing or other equipment.
Heat can build up when a power board is covered or squeezed into an enclosed area.
Keep Leads Out of Walkways
Extension leads and power board cables running across walkways can quickly become trip hazards. Repeated pulling, stepping or rolling equipment over a lead can also damage the cable.
Position leads where they are protected from foot traffic and equipment wherever possible.
Avoid Daisy Chaining
Daisy chaining means connecting one power board or extension lead into another. It might solve the immediate problem of needing another socket, but it also increases the number of connections and makes accidental overloading easier.
If a workplace regularly relies on several connected power boards, it may be time to review whether more permanent power points are needed.
When Should You Replace a Power Board?
Power boards do not last forever.
Replace a power board if you notice physical damage, loose sockets, overheating, scorch marks or damaged cables. You should also pay attention to how the board behaves during normal use.
If plugs no longer sit firmly inside the sockets or the board becomes unusually hot, continuing to use it is not worth the risk.
In a workplace, damaged electrical equipment should be removed from service so it is not accidentally used by someone else.
What About Extension Leads?
Extension leads are useful when equipment cannot reach a wall outlet, but they should still be treated as electrical equipment rather than as a permanent wiring solution.
Check the lead for cuts, damaged insulation and bent or damaged plugs. Avoid running extension leads under rugs or through areas where they can be crushed, driven over or repeatedly stepped on.
If extension leads are permanently stretched across a workplace because there are not enough outlets, installing additional power points may be a more practical solution.
Why This Matters More in a Workplace
At home, you usually know which appliances are connected and who has been using them. Workplaces are different.
Power boards, extension leads and portable electrical equipment can be moved between rooms, workstations or job sites. Different employees may plug equipment in without knowing how the board was previously being used.
That makes regular visual checks particularly important. Workers should also know that damaged electrical equipment should be reported rather than simply plugged into another outlet to see whether it still works.
For businesses using portable electrical equipment, a regular workplace test and tag service can also help identify equipment that may no longer be safe to use.
Where Does Test and Tag Fit In?
Visual checks are useful, but electrical faults are not always visible.
Test and tag involves inspecting electrical equipment and carrying out electrical tests to help identify equipment that may be unsafe to continue using. Depending on the workplace, this can include portable appliances, extension leads, power boards and other plug in electrical equipment.
The Local Guys Test & Tag provides testing for Australian workplaces in line with AS/NZS 3760:2022. Businesses also receive testing records and compliance documentation to help keep track of inspected equipment and future testing requirements.
You can learn more about how electrical test and tag works and what may need to be checked in your workplace.
A Better Approach Than Adding More Adaptors
If one section of your workplace constantly needs double adaptors, extension leads and multiple power boards, the underlying problem may simply be a lack of suitable power points.
Rather than continuing to add more connections, consider having the electrical setup reviewed by a qualified electrician.
Sometimes the safest solution is also the simplest: install enough permanent outlets for the equipment being used.
Frequently Asked Questions
Are double adaptors safe to use?
Double adaptors can provide an additional outlet, but they should not be relied on as a long term solution. Incorrect use, loose connections, damage and overloading can increase electrical risks.
Is a power board safer than a double adaptor?
A good quality power board with overload protection can provide additional safety features that a basic double adaptor may not have. It still needs to be used correctly and should never be overloaded.
Can I plug one power board into another?
It is better to avoid connecting power boards together. Daisy chaining increases the number of connections and makes it easier to overload the original wall outlet.
What are the signs of an unsafe power board?
Look for cracked casing, damaged cables, loose sockets, scorch marks, discolouration or unusual heat. Stop using a power board if you notice signs of damage.
Can power boards be tested and tagged?
Power boards and extension leads are examples of portable electrical equipment that may be inspected and electrically tested as part of a workplace testing program.
Need Help Checking Your Workplace Electrical Equipment?
If your workplace uses power boards, extension leads and portable electrical appliances, regular inspection and testing can help identify equipment that may no longer be safe to use.
The Local Guys Test & Tag provides workplace electrical testing across Australia, including testing records and compliance reporting.
If you are unsure which equipment at your workplace needs checking, you can request a test and tag quote from The Local Guys Test & Tag.
