S
Equipment supplies
Defined circuits for suitable three-phase loads.
Commercial & light industrial power
Three-phase electrical work in London
Defined three-phase supplies, isolators, distribution alterations and testing for suitable commercial and light industrial equipment.
Service overview
Three-phase work begins with accurate load and supply information.
Equipment ratings, starting current, duty, cable route, protective devices and fault conditions all influence a three-phase circuit.
Bastian Electrical can install suitable smaller three-phase supplies and alterations where the design data, equipment instructions and project scale are clear.
Major switchgear, complex discrimination studies and high-capacity installations may require specialist design or a larger delivery team.
A socket or isolator rating alone does not prove that the supply or circuit is suitable for the connected equipment. Manufacturer data and design checks are required.
No-obligation enquiry
Ask about this service
Send the basic details. James will review the scope and contact you about availability and the next step.
What the service can include
Suitable three-phase electrical work can include:
The final scope is agreed after the existing installation and your requirements are reviewed.
I
Local isolators
Appropriate isolation near agreed equipment.
D
Distribution alterations
Smaller board and outgoing-circuit changes.
SWA
Armoured cabling
Durable cable routes where suitable.
P
Phase checks
Phase sequence and relevant electrical verification.
L
Labelling
Clear circuit, isolator and equipment identification.
Planning the work
What is checked before work begins.
- Equipment rating and manufacturer data.
- Starting current and operating duty.
- Available supply and upstream protection.
- Cable route and installation method.
- Isolation and shutdown requirements.
- Testing and responsibility for equipment commissioning.
Your quotation
What can affect the price?
- Cable size and route length.
- Protective-device and board requirements.
- Containment and mechanical protection.
- Shutdown timing.
- Access equipment.
- Specialist design or equipment attendance.
A clear written quotation is provided once the scope can be priced reliably. Diagnostic work may be charged separately where the fault cannot be identified in advance.
See domestic price examplesHow it works
A clear route from enquiry to completion.
Share the details
Send the property type, postcode, symptoms or required work, and useful photos.
Assess the scope
The existing installation, access and likely testing requirements are reviewed.
Confirm the basis
A quotation, site survey or diagnostic visit is agreed before work starts.
Complete and check
Work is carried out carefully, then relevant checks and documentation are completed.
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Helpful answers
Questions about this service
Can you install a three-phase socket?
Potentially, after checking supply capacity, equipment requirements, protection and cable route.
What information do you need?
Equipment data plate, manufacturer instructions, location, intended use and existing supply information are useful.
Do you commission machinery?
Electrical supply testing can be agreed, but machinery commissioning may remain with the manufacturer or specialist.
Can you add a circuit to an existing board?
Only if the board, supply, protective devices and available capacity are suitable.
Will production need to stop?
Some isolation may be needed. The shutdown requirements are planned before work.
Do you handle very large three-phase installations?
Large or complex projects may require specialist design and a larger contractor team; the enquiry is assessed honestly.
Need help with three-phase electrical work?
Send the job details and postcode for practical advice and a free quotation.