heating

cooling

stirring

mixing

two core type

three core type

three and half core type

four core type

white-ant attack

entry of moisture

mechanical injury

bursting

testing with megger

separate earthing

metallic junction box

any plumbing work

1/4 th of its full height

1/5 th of its full height

1/6 th of its full height

1/8 th of its full height