9131
Rev. M
SECTION 1
GENERAL INFORMATION
1.1 INTRODUCTION
1.1.1 Purpose
This instruction book provides field support data and information for the FAA Type
L-847 Runway Circuit Selector Switches manufactured by Crouse-Hinds Airport
Lighting Products, Windsor, CT 06095. The equipment is herein after referred to as
a CSC.
1.1.2 Applicability
This instruction book applies only to that hardware bearing the part number series
84700. Instructions for standard options are provided in Section 6 of this document.
Refer to Table 1-1 for complete part number information.
1.2 EQUIPMENT DESCRIPTION
1.2.1 Function
The FAA Type L-847 CSC is a power switching cabinet specifically designed for
connection to the output of an FAA Type L-828 Airport Lighting Constant Current
Regulator (CCR). It is capable of switching one or more series lighting circuits
either locally or from a remote location, without affecting CCR operation.
1.2.2 Features
The CSC is designed to accommodate lighting loads of up to 70KW at 20 amps and
30KW at 6.6 amps. Standard models are equipped with from one to four circuit
capability in one NEMA 1 enclosure. Any combination of load circuits may be
energized simultaneously. Modular construction has been utilized to provide ease of
maintenance. A clear dead front cover allows safe inspection of high voltage
components without the need to de-energize the lighting system.
1.2.3 Options
A number of factory installed options are available. These options, listed in Table 1-
1, enable the customer to configure the CSC for a variety of specific applications. It
is recommended that the customer contact Crouse-Hinds to verify the specific
options required for an application prior to order submittal. Option -1 is installed on
all units. See Section 3.1.4.
1.2.4 Specifications
The following specification data applies to a standard model 84700 series CSC
without options.
1