G101 (Trinidite A57/EHT) Hot Pour Compound

G101 - (Trinidite A57/EHT) General Purpose Grade Hot Pour Compound

G101 Hot Pour Compound up to 11kV - UK Power Networks Approved

T&D distribute an extensive range of electrical switchgear and transformer oils for high voltage electrical equipment insulation, 11kV-33kV - this includes Guroflex oils, BICC oils and Trinidite hot pour compounds for filling high voltage switchgear and transformer termination boxes and busbar chambers.

G101 (Trinidite A57/EHT) Hot Pour Compound requires heating prior to pouring and therefore protective clothing should be worn to prevent accidental skin burns -  this should include gloves, boots, overalls and eye protection.

It is important that G101 (Trinidite A57/EHT) Hot Pour Compound be heated in a clean and dry compound bucket to prevent carbonised deposits being introduced from previous heating operations. Hot pour compounds will tend to contract on cooling and it is necessary for a "top-up" pouring to complete the operation.

Softening point 52-58 deg C
Pouring temperature range of 120-130 deg C.
Suitable for use with PVC & MDPE cable sheaths
Impulse voltage tested to a 179kV peak at 21 deg C

 

Breaking Down & Re-terminating 11kV G101 Compound Filled HV Cable Boxes (Guidelines According to E-ON UK Module 21 Cable Jointing Manual April 2009)

1 - Cut the 11kV cable under the plumb and position a large cardboard box to catch melted cable box compound below the cable box - fill cardboard box with 50mm sand to prevent leakage of molten compound.

2 - Remove the filler cap and drain plug - then remove all but two (one each side) of the front cover bolts.

3 - Remove any flammable tapes from around the plumb and then melt the entire plumb into the cable box using a cable jointers blow lamp - remove the high voltage cable gland from gland plate.

4 - Position the heat lamps in front of the cable box and heat the lid until sufficient hot pour cable box compound has drained to enable the lid to be removed.

5 - Remove the heat lamps, the remaining two bolts and lift the lid from the cable box.

6 - Reposition the heat lamps and melt the remaining hot pour compound into the box.

7 - Once the remaining box compound has been melted remove the existing high voltage cable termination by unbolting the cable lugs from the cable box bushing.

8 - Unbolt the base plate and remove all gaskets.

9 - Thoroughly clean the inside of the 11kV cable box, cover plates and glands using cable cleaning solvent wipes. Special attention must be paid to cleaning the bushes - where extra heat is required the heat lamps must be used and not a gas torch as the direct heat may crack porcelain bushings or blister shellac/paper bushings.

10 - Remake all gaskets, replace any sheared bolts from cable lugs and remove the taper from the end of the cable gland by cuting with a hacksaw to provide largest aperture possible.

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Breaking Down & Re-terminating 11kV Hot Pour Compound Filled Cable Boxes - E.ON UK Document