ICSIronmark Critical Services

Service / LV-06

LV shutdowns & shutdown support

Planning, technical support and recommissioning for planned low-voltage shutdowns affecting critical building systems.

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SCOPEELECTRICAL / SHUTDOWN SUPPORTICS / LV-06

The work

LV shutdown planning and technical support.

An LV shutdown can affect fire alarms, smoke control, security, networks, controls, lifts and other building services. The affected systems and their standby arrangements should be understood before power is removed.

ICS can support the shutdown plan, record pre-shutdown condition, attend during the work and test affected systems after supplies are restored. Isolation and switching remain with the appointed authorised persons and electrical contractors.

Approach

From the reported fault to a tested conclusion.

The exact test plan depends on the system, its condition and the effect of taking equipment out of service. These are the usual stages for this type of work.

01

Identify every dependency

Map affected panels, standby supplies, batteries, UPS equipment and connected building systems.

02

Record and support the shutdown

Capture existing faults, agree the sequence and monitor the systems during isolation and restoration.

03

Recommission affected systems

Check indications, communications, interfaces and operation after normal supplies return.

What ICS can investigate

Check the complete operating sequence.

  • +Affected supplies, panels and building systems
  • +Battery, UPS and standby arrangements
  • +Shutdown sequence and system dependencies
  • +Pre-shutdown status and existing defects
  • +Post-restoration indications, operation and interfaces

Outputs

Test results, findings and required work.

The report format and level of detail are agreed before the work starts.

Useful before attendance

  • Proposed switching programme
  • Affected distribution and system drawings
  • Standby duration and battery information
  • Contractor roles and authorised person arrangements

Shutdown support plan

Affected system and dependency list

Pre-shutdown condition record

Post-restoration test record

Defect and recommissioning actions

Contact ICS

Have the fault history and system records ready.

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