Electrical Insulation Resistance Test; Periodic Inspection Record - BriskHeat K Serie Mode D'emploi

K-Series Heating Cable Installation Instructions

ELECTRICAL INSULATION RESISTANCE TEST

Electrical tests are recommended at specific points in the receipt and installation of the heating cable.
This periodical testing is designed to prevent the expenditure of wasted labor in the event of damage to
the product. Installation costs of the cable and thermal insulation are much greater that the heating
cable. Quick identification of any heating cable damage is the most economic approach to an installa-
tion. An insulation resistance test is recommended at the following point of the installation process:

UPON RECEIPT of the heating cable

BEFORE thermal INSULATION installation

IMMEDIATELY AFTER thermal insulation installation

As part of a PERIODIC MAINTENANCE program
Procedure
The insulation resistance test is used to check for damage to extruded jackets. Connections for the
megger are made as shown.
FOR HEATING CABLES WITH BRAID AND OUTER
FOR HEATING CABLES WITH BRAID
JACKET
Test from heating cable bus wires to braid.
Test A - (solid lines) from heating cable bus wires to
braid.
Test B - (dotted lines) from braid to metal pipe.
500 VDC
MEGGER
Note: Test should use at least a 500 VDC megger. Do not use a megger with an excess of 2500 VDC.
Minimum acceptable readings should be 20 megohms per circuit, regardless of length.
A record should be kept of the readings taken from the time the cable is first installed on the pipe. A
history of the insulation resistance reading can be helpful in spotting moisture ingress into the electrical
system (indicated by a gradual decline in the insulation resistance) or physical damage to the heating
cable (indicated by a sharp decline in the insulation resistance). A sample record for this is shown. (See
the following page)

PERIODIC INSPECTION RECORD

The Periodic Inspection record Form may be used in one of two ways:
1.One sheet per circuit - The results of periodic tests of a single circuit are posted in vertical columns, beginning on
the left and working toward the right. This allows easy comparison of test values for up to three test sequences on an
individual circuit.
2.One circuit per column - Test data for a single test sequence on as many as three circuits can be recorded on a
single sheet.
For additional Periodic Inspection Record Forms, contact your local distributor/representative or Briskheat at 1-800-848
-7673 (toll free, U.S. / Canada) or 1-674-294-3376 (Worldwide) or bhtsales1@briskheat.com.
© BriskHeat Corporation. All rights reserved.
500 VDC
MEGGER
11
K-Series Heating Cable Installation Instructions
Periodic Inspection Record Form
Freeze Protection Circuits -
Perform these checks as season requiring use ap-
Temperature Maintenance Circuits -
Perform these checks at least twice per year.
Maintenance Checks for _____________ Month _____________Year_________________
Visual inspection inside connection box
corrosion, moisture, etc.
Damage or cracks (leaks) in insulation
seals at valves, hangers, pumps, etc.
Heating cable properly connected and
grounded. heating cable and connections
insulated from connection box.
Thermostat checked for moisture, corrosion,
set point, switch operation, and capillary
damage
Megger tests performed at power
connection with both bus wires disconnected
from power wiring.
Circuit voltage at power connection.
Circuit amperage after 5 minutes
Pipe temperature at time amps were measured.
Watts/Ft.
Volts x Amps = w/ft.
feet
All connections, boxes, and thermostats
have been resealed.
End seals, covered splices and tees marked
On insulation cladding.
Remarks & Comments
© BriskHeat Corporation. All rights reserved.
Circuit Number
Heater Type
Circuit Length
Initial
Date
Initial
Date
Initial
Date
Set Point
Initial
Date
Reading
Initial
Date
Reading
Reading
Reading
Initial
Date
Initial
Date
Initial
Date
12