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Senior Authorised Person Services: Up to 33kV

Fully qualified SAP services up to 33kV for private networks, ICP works, renewables and commercial sites. Experienced in issuing Permits to Work, carrying out isolations and managing switching operations safely, to both DNO and private network safety standards. Based in Kent and working nationwide.

What Our SAP Service Covers

A Senior Authorised Person (SAP) is responsible for issuing safe working documents, managing isolations and ensuring the HV system is in a safe condition before any work begins. SAP support required to manage HV works safely within the applicable safety management system.

  • Issuing Permits to Work (PTW) for HV and LV work in progress
  • Switching and isolation operations: planned and reactive
  • Re-energisation and circuit restoration
  • Live network supervision during HV works
  • Access control and safety documentation
  • Point of Work identification and proving dead
  • HV cable spiking and proving dead before jointing
  • Coordination with DNO/IDNO networks

Where We Provide SAP Services

Our SAP attendance covers a range of site types across private and contestable HV network environments:

  • Private HV networks: industrial sites, commercial developments, business parks
  • Battery storage and solar farm HV systems
  • EV infrastructure installations requiring HV isolation and supervision
  • New ICP connection works: connection day management up to energisation
  • Industrial estates and commercial developments with private 11kV networks
  • IDNO adoption works: taking control of the LV network on connection day

SAP and Jointing in the Same Team

One of the practical advantages of using R&D Cable Jointing is that our SAP and jointing capability sits within the same team. You do not need to coordinate separate contractors for HV isolation and the jointing works, we can provide both, under one programme, with clear accountability. This simplifies programme management and removes the risk of delays caused by SAP non-attendance.

Safety Standards We Work To

Our SAP works to the applicable safety management system for the network in question, whether that is DNO-specific Distribution Safety Rules for contestable connections, a private network operator's own safety rules, or a system aligned to the HSE's guidance on Electricity at Work Regulations 1989.

Areas: Essex, London, Kent, Hertfordshire, Surrey, Suffolk, Cambridgeshire, Bedfordshire and nationwide. Contact us with your switching schedule and site details and we will confirm SAP availability.

Ready to discuss your project?

Send us the scope, cable type, voltage and location and we'll come back with availability and a clear plan. No lengthy process, just a straight answer.