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Power System Safety Rules

Our Power System Safety Rules (PSSR) apply to all TransGrid employees and contractors working on our network.  

These rules were created to keep our people safe when they are exposed to the hazards of working on infrastructure such as substations, overhead lines, high voltage cables, and communication facilities.

In addition to the rules, we expect our employees and contractors to adhere to relevant legislation, codes of practice and guidelines. PSSR and Environmental Authorisations Training is delivered by the TransGrid Training Group. Please visit the TransGrid Contractor website to find out more. 

The following documents support the Power System Safety Rules. 

Category 1	- Safe access to substations
Category 2	- Requests for access
Category 3	- Mobile plant in the vicinity of high voltage conductors - Work in substations - general
Category 4	- Operating process - work on low voltage or mechanical apparatus - Access for work on low voltage or mechanical apparatus - Safe work practices on low voltage or mechanical apparatus
Category 5	- Operating process for access to high voltage apparatus - Access for work on high voltage substation apparatus - Safe work practices on high voltage substation apparatus - Proving high voltage conductors de-energised - Portable earthing of high voltage conductors - High voltage operating rods - Work on disconnected apparatus
Category 6	- Access for work on high voltage overhead lines - Safe work practices on high voltage overhead lines
Category 7	- Access for work on high voltage transmission cables - Safe work practices on high voltage cables
Category 8	- Safe work practices on radio frequency transmitting apparatus