5.8.2-1
Power installation
Component Information
- Code:
- 5.8.2-1
- Sequence:
- 1
- Unit:
- m2
- Sub-Element:
- 5.8.2 - 2 Power installations
Power installation
details to be stated.
Component Statistics
Measurement Rules
Included Items
Excluded Items
Measurement Rules (6)
The area measured is the area serviced by the system (i.e. the area of the rooms and circulation spaces that are served by the system, which is not necessarily the total GIFA of the building). The area serviced is measured using the GIFA.
Where more than one system is employed, the area measured for each system is the area serviced by the system.
Installations for residential units, hotel rooms, student accommodation units, etc. may be enumerated (nr). The type of residential unit or room, and size (by number of bedrooms) of unit, is to be stated.
Work to existing buildings is to be described and identified separately.
Where the contractor is only responsible for designing specific elements and/or components of the building project (i.e. not the entire building project), contractor-designed work is to be described and identified separately.
The percentage additions for testing and commissioning are to be applied to the total cost of the items comprising the sub-element. A single combined percentage addition can be applied to cover the costs of both testing and commissioning.
Included Items (15)
General-purpose LVLV power installations.
Extra LV supply installations.
Direct current (DC) installations.
LV switchgear and distribution boards, where not included as part of the sub-mains distribution.
Uninterruptible power supply (UPS) installations, etc.
Cables and wiring, including support components from sub-distribution boards to socket outlets, fuse connection units, etc.
Conduits and cable trunking, including all fittings and support components.
Earthing and bonding components.
Socket outlets, fuse connection units and other outlet accessories.
Final connections to equipment (e.g. boilers, kitchen and catering equipment, instantaneous water heaters, cookers and extraction terminals).
Separate power installations for specialist mechanical and electrical equipment (e.g. for transportation systems).
Final connections to specialist mechanical and electrical equipment where not carried out by the equipment installer.
Sundry items.
Testing and commissioning.
Where works are to be carried out by a subcontractor, the subcontractor’s preliminaries, design fees, risk allowance, overheads and profit, with allowance for these to be made within unit rate applied to element or component.
Excluded Items (6)
Electric heating installation (included in sub-elements 5.6.1 or 5.6.2, as appropriate).
LV switchgear and distribution boards included as part of the sub-mains distribution (included in sub-element 5.8.1).
Final connections to sanitary appliances and pods (included in sub-elements 5.1.1 and 5.1.3, as appropriate).
Final connections to specialist mechanical and electrical equipment where carried out by the equipment installer.
Building management systems and other control systems (included in sub-element 5.12.3).
Builder’s work in connection with services (included in element 5.14).
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