EHT Construction 电伴热施工演示文稿
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Components installation
• Detailed multilingual installation instruction in each kit
Heating cable preparation
Junction boxes & support brackets
Power connection
(XTV & KTV)
Braid
Outer jacket
Heating cable installation
• Storage • Pre-installation checks • Cable handling • Positioning & attachment • Tracing
Storage
Pre-installation checks of material
• Cable reference and Voltage rating
• Transportation damages
• Record cable details, batch nr, total length on reel
• Walk the system and plan the routing
Heating cable handling To be avoided !
Heating cable positioning & attachment
Tracing a pipeline
300 mm
Tracing valves
Keep free
Tracing elbows
Ø 2”
Tracing flanges
2 x Ø pipe
Tracing pipe bar hangers
Tracing welded pipe support shoes
Side
Under
Components installation
• Installation instructions • Heating cable preparation • Components installation
120°C 160°C
150°C 160°C
110°C 215°C 215°C
Heating cable construction
Monolithic heaters (BTV & QTVR)
Spacer Core Conductors Fiber
Electrical insulation
Fiber heaters
• Thermal insulation • Power supply • Pre-commissioning
At the end of the installation
• Extra tracing for valves installed properly? • Sensors OK? • Insulation resistance test • Sign off construction drawings
– GS54 for stainless steel pipes below -5°C up to 180°C
• Aluminium tape: ATE-180
Thermostats and control units
At the end of the installation
• Checking the trace-heating system
Pre-installation checks of material
Perform insulation resistance test and record values
Pre-installation checks of piping
• Plan to fit in the construction schedule
Thermal insulation
After thermal insulation
Power supply & electrical protection
rcd
Pre-commissioning
谢谢大家!
2007-5-8
37
T-connection
X-connection
230 V
230 V
230 V
Connection kit
Insulation entry kit
End seal kit
Splice kit
Accessories
• Fixing tapes
– GT66 for carbon steel பைடு நூலகம்ipes from -5°C to 130°C
Heating cable range
BTV
QTVR
XTV
KTV
Tmaintain 65°C
(max)
Tambient 65°C
(max)
cable not powered
Texposure
(max)
(intermittent, 1000h cumulative)
85°C
110°C 110°C