Lightning Protection 2 Crossword
This printable crossword puzzle has 10 clues. Answers range from 4 to 10 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
Spacing between ground rods must be twice the distance of ground rod. 10' rods would require ______'between the ground rods?
The maximum distance between supports is _____ feet.
The tip of an air ______ must be 10" above protected object.
Air terminals that extend over 24" must have a _______ support.
Lightning protection conductors must be electrically ________ and bonded where not.
_________ protective devices must be installed at all power services.
A surge ______ is a limiting protection device in electrical services.
_________ and ungrounded metal bodies exceeding 60' must be bonded to structural stee.
_______ conductors are used to interconnect down conductors and grounding electrodes.
Structural steel used as lightning down conductors must be bonded every ______ feet.
