KKK-A-1822 E
3.7.8.1 UTILITY POWER CONNECTOR.
Unless additional capacity is required, a 115 volt AC (male) plug (NEMA 5-15P), rated at 15
amps (similar to a Levitan 4937, Arrow-Hart 527WP or equal), with spring loaded cover
assembly suitable for wet locations, shall be installed on the driver's side of the ambulance body
in close proximity to driver's door. The connection shall be permanently labeled with the following:
THIS CONNECTION IS FOR 115 VOLT AC, 60 Hz, 15 AMPERE SUPPLY.
NOTE:
THE ABOVE LABEL SHALL REFLECT ACTUAL VOLTAGE AND
CURRENT CONNECTIONS IF OTHER THAN SHOWN.
This receptacle shall energize the vehicle's internal AC circuit(s) from an external power
source (utility power). The purchaser's stationary utility power circuit supplying the
ambulance's 115 volt AC power should incorporate ground fault protection. A proper
mating, weatherproof, 15 ampere or more when required, female receptacle (NEMA 5-
15R) shall also be furnished without cable and tagged specifying the size, type of wire
necessary, and the polarity of the future hookup.
3.7.8.2 ELECTRICAL 115 VOLT AC RECEPTACLES.
The patient compartment shall be furnished with a pair of 2 wire plus ground duplex
115 volt AC receptacles. Receptacles shall be near flush, vertically mounted. One
outlet shall be located on the primary patient action wall and the other shall located
in the right front cabinet / storage area. Both outlets shall be at least 31 cm (12 in.)
from any oxygen outlet. An indicator shall be located within each 115 volt AC receptacle
as a line monitor indicating a live (hot) circuit. The receptacles shall be labeled with
the following: "115 VOLT AC."
3.7.8.3 SOLID STATE INVERTER FOR ON BOARD 115 VOLT AC POWER.
When specified under 3.15.3-6, a DC to AC inverter shall be provided in conjunction with
the onboard 115 volt AC wiring system (3.7.8.) The device furnished shall be capable of
continuously delivering at least 750 watts of sine wave type regulated AC power to safely
power all types of electrical or electronic loads and maintain a frequency of 60 +/-4 Hz.
The single phase output sine wave type regulated voltage, with minimal harmonic distortion,
shall not rise to more than an RMS value of 135 volts nor drop to less than 105 volts from
no load to full load, at an 80 percent power factor, over the 12.8 to 14.8 range of the DC input
voltage. The device shall be capable of operating all types of AC loads, including resistive and
reactive (either inductive or capacitive) over the temperature range in 3.4.2. The installation
shall include an "ON-OFF" switch to activate the device. This switch shall be located on the
EMT's control panel or cab console, have a red "ON" indicator, and be labeled with the following:
"115 VOLT AC Inverter." A decal shall be provided near this switch, which states that "WHEN
OPERATING THE 115 VOLT AC SYSTEM, ALL UNNECESSARY 12 VOLT DC
ELECTRICAL LOADS SHOULD BE TURNED OFF." The inverter shall have integral
GFCI protection and shall be wired per Figures 5A or 5B, and 6.
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