DREXAN 30CMH120 설치 지침 매뉴얼 - 페이지 6

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III. PREVENTIVE MAINTENANCE
Prior to startup and on a regular annual basis it is recommended that both visual and electrical inspections be
performed. The following is a list of heating cable system checks.
Thermal Insulation: Check the waterproofing for damage as well as cracks or gaps in caulking on the thermal
insulation to ensure no damage exists resulting in poor insulation values.
Inspect all electrical enclosures for moisture, corrosion or foreign matter.
Check all electrical connections for tightness and perform an insulation resistance check with a megger, from
heating cable conductor to sheath (ground). The minimum resistance should be 5 MOhm or higher.
HEATING CABLE TESTING REPORT
Customer
Site Location
READINGS PRIOR TO INSTALLATION:
Insulation Resistance
(MOhm)
Ambient Temp.
Tested By
READINGS AFTER INSTALLATION:
Insulation Resistance
(MOhm)
Ambient Temp.
Tested By
FINAL READINGS:
Insulation Resistance
(MOhm)
Ambient Temp.
Tested By
CMH Connect
CMH-CON
Contractor
Project Ref.
Panel No.
Volts
Panel No.
Volts
Panel No.
Volts
Installation Instructions
Breaker
No.
Amps
Date
Breaker
No.
Amps
Date
Breaker
No.
Amps
Date
Page 6 of 6
HD140401-1 Rev 2
Part No. DREX0074