Government Reinstates Electrical Safety Rule After Inspectors Warn of Lethal Risk
The Government has put a ban on a type of electrical wiring back in place after electrical inspectors warned it could leave homes and businesses at risk of serious electric shock, according to RNZ.
The reinstatement was reported on 1 October 2026.
The rule was about Protective Earth Neutral, or PEN, switching. In a typical wiring system, the earth wire gives fault current a safe path away from people, much like an overflow channel carries excess water away from a dam. The Electrical Inspectors Association said removing PEN protections could make whole electrical systems lethal, with possible multiple injuries or deaths even when equipment was operating normally.
The Ministry of Business, Innovation and Employment (MBIE) has reinstated the ban on PEN switching while it does further work on the risks and benefits. The Ministry pointed to differing views and ongoing concern in the sector about safe use.
The ban is now back in force. Energy Minister Simon Watts said he was taking feedback on the PEN rule change seriously.
WorkSafe has asked an international expert to carry out an independent review to provide assurance on the advice it gave MBIE about the PEN rule change.
The broader context here is one Press Gallery regulars will know. Safety rules of this kind often change on agency advice with little input from ministers. Ministers tend to get involved only when a professional body challenges the technical basis. That does not mean the first decision was wrong. It reflects how the system is set up, with the profession acting as a backstop.
In my view, the form of the reversal matters. Bringing back the ban while further work is done restores the cautious approach without closing off the policy question. It leaves MBIE room to test the evidence and look at industry practice while the disputed permission is off the books for now. For officials, that is easier to defend than holding the line or dropping the idea altogether.
Looking at what this means for the advice chain from WorkSafe to MBIE, an overseas independent review is a standard Wellington assurance step. It separates the immediate safety decision from checking the earlier advice. Ministers get distance from the technical dispute. Agencies get an outside reference point if they pursue further change. The sector gets a signal its concern has been heard without a final decision on the merits.
Looking at what this means for the Beehive from here, the Minister's language keeps options open. Taking feedback seriously promises process, not a permanent outcome. That gives Watts room to accept, change or set aside any further proposal once MBIE finishes its work on risks and benefits and WorkSafe gets its external review. The watch point is process. How the further work is scoped, who is consulted, and how the findings are released will shape whether the sector accepts the next decision.
