Document Number 900-20571 Rev. A
2
IMPORTANT SAFETY NOTICE
Fire Safety Conditional Approvals
A fire safety conditional approval must be issued by an appropriate licensed electrical
engineer for use of this sewer camera in areas of a sewer that have been demonstrated by
testing and monitoring not to fall under the “Fire Safety Approval” requirement in
Section 2540.2 of Title 8 of the California Code of Regulations. Testing and monitoring
will be considered by the California Division of Occupational Safety and Health, to be
sufficient for this purpose if all measurements indicate that the sewer atmosphere is
below 10% of the lower explosive limit (LEL) and if the user meets all of the following
additional conditions:
(1)
Before each use, inspects cable and electrical equipment for damage or wear that
could compromise safety;
(2)
Test operates the sewer camera and associated electrical equipment in a dry
location away from any potential exposure to hazardous conditions to determine whether
the equipment functions normally and without any problems, such as sparking, loose
connections, or other similar safety problems;
(3)
Tests for the existence of a hazardous atmosphere prior to opening any sewer
access point using a multi-gas tester, and before energizing the equipment, conducts a test
of the sewer atmosphere at the access point estimated to be closest to the end point of the
camera work;
(4)
Provides continuous monitoring in the alarm mode at the access point from which
the work is performed at all times while the sewer inspection camera is energized in the
sewer;
(5)
De-energizes all electrical equipment and uses mechanical ventilation of a
measurement exceeding 10% of the LEL is obtained;
and Discontinues use of all electrical equipment if the sewer environment cannot be
maintained below 10%.
Copyright © 2002 RS Technical Services
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