Capstone Turbine Corporation • 16640 Stagg Street • Van Nuys • CA 91406 • USA
Installation Guide: Capstone C1000S/C800S/C600S with C1000 Series Controller
480064 Rev C (December 2018) Page 66 of 122
Capstone reserves the right to change or modify, without notice, the design, specifications, and/or contents of this document without
incurring any obligation either with respect to equipment previously sold or in the process of construction.
7. Electrical Installation
7.1. General Requirements
It is the responsibility of the installer to supply all ancillary electrical equipment such as electrical
cable, switchgear, transformers, and disconnects through which the microturbine delivers its
output power. The equipment must be capable of safely handling the maximum potential loads,
and must meet all applicable local and national regulations. This section outlines general
requirements for all Capstone products.
7.1.1. Electrical Connections Considerations
The information here is intended to help avoid common mistakes and highlight possible permitting
issues.
Electrical service to the microturbine location may come underground, above ground,
supported from ceiling, or attached to wall per local codes, but note the following:
o The depth that conduits must be buried changes based on whether the conduit is
under a building, parking lot, or concrete of different thicknesses.
o Above-equipment conduit runs may be subject to height and support requirements
per applicable mechanical and electrical codes.
Grounding must be made in a manner that is consistent with local codes. Sheet metal
screws are generally not permitted to attach ground leads or lugs to equipment. Refer to
Section 7.2 for more details on microturbine grounding.
Follow the typical rates for circuit breaker and wire sizing in accordance with applicable
electrical and safety codes. Refer to Section 7.3 for more information on overcurrent
protection.
It is recommended that a lockable disconnect be installed within viewing distance of the
microturbine, and is used to isolate the microturbine for service or repair.
Conductor size and insulation type must be determined based on total maximum
nameplate rating of the microturbine units.
Always perform a load analysis to determine a customer’s electrical demand and power
quality requirements (harmonics). These requirements should drive the final design for
the project.
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