Common questions
What is the green sign in a dental surgery or treatment room?
The green sign tells staff and visiting trades that the room is a body-protected electrical area: its outlets are on 10 mA RCDs and the room has been wired and tested to AS/NZS 3003 for medical equipment that connects to patients. It belongs inside the room, near the RCDs.
Three things to check on it: the symbol (body-protected, not the cardiac-protected symbol used in theatres and cath labs), the test label showing when the room was last tested and by whom, and the date. If the date is more than 12 months old, the room is due for its test.
No sign, or no test label, is worth a question to your electrician. It usually means the room has never been tested as a patient area, or the record has been lost.
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More questions
- What does a new dental surgery need electrically?
- Do I need an electrician to move a dental chair?
- How often does a medical or dental room need electrical testing?
- Can a GP consult room be used for ECGs?
- Who certifies the electrical work in a dental or medical fit-out?
- What is a body-protected electrical area?
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