HT UG CABLE LAYING - IMPORTANT DATA

Clearance from other cables :-

1. Power cable to Power cable             -      Clearance is not necessary. However, larger 
                                                                       clearance  better would be current carrying capacity.

2. Power cable to control cable                           -      0.2 metre

3. Power cable to communication  cable            -      0.3 metre

4. Power cable to Gas / Water main                   -      0.3 metre

5. Power cable should not be laid above the telecom cable.

6. Size of the protection pipe (G.I) for the UG cable should be at least 1.5 times the outer dia. of
    the cable. 


For  laying of HT UG 11KV , 3 core, Aluminium, armoured, XLPE  cable :-

Approx. Dia.                                     =       75 cm

Approx. weight                                 =       634 kg

Bending Radius                                =       15 X Dia.

Minimum depth in laying Trench  =       0.9 m

Cable route indicator for every 200 m and also at turning points.

Sand Filling min.  75 mm  at the trench bottom and 75 mm additional covering.

 

Electrical fault prediction device - THERMAL IMAGER

Thermal Imager is the most powerful device to predict the Electrical faulty area without opening the cover of the panel / motor etc.

 

Thermal Imagers are handheld device; used for preventive and predictive maintenance, equipment troubleshooting, repair verification, building inspections, restoration and remediation work, energy audits, and weatherization purposes.

 

The temperature measurement range starts at -20 °C, and goes up to +600 °C. Thermal imagers have IR-Fusion technology.

 

Thermal and visual images are displayed on the Imager LCD and can be saved to a removable SD memory card. Transferring images to a PC is accomplished by removing the SD memory card and connecting it to a PC through the included, multi-format USB card reader. Software is included for image analysis and report generation from these saved images.

 

Thermal Imager power is supplied by one of two included, field-swappable, rechargeable Lithium-ion smart battery packs, with continuous operation.

 

In addition to the features mentioned above, the Imagers provide voice recording capabilities for annotating saved images, emissivity correction, reflected background temperature compensation, transmission correction, and many other useful, easy-to-use features.

 

• Some of the popular brands of Thermal Imager are Fluke & Amprobe.