PEC Chapter2 (Continuation again..)

COPPER. ___%
conductivity when annealed.

Coating of lead. Shall extend atleast ___mm below the top of the
chimney

Bimetallic connections. Shall be installed at a point not less than
___mm above grade level

Where
downleads are concealed, connection shall be atleast ___mm above the lowest
slab

Air Terminals. Shall not extend not less than ____mm above the
object protected for 6000mm maximum intervals and not less than ____mm above the object protected for 7600mm maximum intervals

Air Terminals. Exceeding ___mm high shall not be supported

Air Terminal Supports. Shall be at not less than _______ the height of the air terminal

Flat or Gently Sloping Roofs. Which exceed ___m in width shall have additional
air terminals at intervals not exceeding ___m on the flat or gently slope areas

Gently Sloping Roofs are roofs having a span of ___m or less and a
pitch of one eighth or less, or roofs having a span exceeding ___m and a pitch
of one fourth or less

Lower Roofs. Buildings which exceed ___m above grade are
considered to protect lower roof portions

Roofs with Intermediate Ridges. Roofs with a series of parallel ridges shall
have air terminals along end ridges at terminals not exceeding ___mm

An
air terminal shall be placed within ___mm of the end of each intermediate ridge

Irregular
Roof Lines. The edge of the roof shall be considered continuous and air
terminals shall be located within ___mm of the outermost projections of the
roof edge.

-         
Max
spacing : ___m(inner)

Open Areas in Flat Roofs. Perimeter of open areas shall be protected if
their perimeter exceeds ___m provided either rectangular dimension exceeds ___m

Chimneys. ____mm thick.. when such chimneys or vents are
not within a one-to-two zone of protection of an air terminal

Chimney air terminals… ___mm from an air terminal

Air Terminals. Max Spacing. ___mm or
____mm

Gradual 
Bends. No
bend of a conductor shall form an included angle of less than ___ degrees nor
shall have a radius of bend less than ___mm

Supports. Conductors may be coursed through air without
support for a distance of ___mm or less. With a ___mm rod or its equivalent
support, securely fastened at each end, a conductor may be coursed through air
for a distance not to exceed ___mm

Roof Cross Runs. Conductors shall interconnect the air terminals
on flat or gently sloping roofs that exceed ___m in width. Intervals not
exceeding ___m

One-Way Drops. Conductor drops from a higher to a lower roof
level are permitted without an extra downlead provided the lower roof conductor
run does not exceed ___m

Dead Ends. Main conductor is not more
than ____mm in total length

Down Conductors. Structures over ___m in perimeter shall have an
additional down conductor for each additional ___m of perimeter or fraction
thereof

Number of Down Conductors. The average distance between down conductors
shall not exceed ___m

Protecting Down Conductors. The down conductor shall be protected for a
minimum distance of ___mm above grade level

Ground Terminals (Rods). Shall be not less than ____mm in diameter and
____mm long

Ground Rod Clamps. Clamps shall make contact with the ground rod
for a distance of ___mm, measured parallel to the axis of ground rod. And with
cable itself for a distance of at least ___mm

_____
shall be secured with at least two bolts or cap screws

Variations Due to Soil Conditions. The nearest ground terminal shall be not less
than ___mm from the fountain wall

Deep Moist Clay Soil. The lightning conductor or ground terminal
shall extend vertically not less than _____mm into the earth

Sandy or Gravelly Soil. In sand or gravel, two or more ground
terminals, at not less than ____mm spacings, shall be driven vertically to a
minimum depth of _____mm below grade

Shallow Top Soil. Trenches shall be not less than ____mm in
length and from ___ to ___mm in depth in clay soil. In sandy or gravelly soil,
the trench shall be not less than ___mm in length and ___mm in depth

Buried Copper Ground Plate. At least 0.80mm thick and having a minimum
surface area of _____

Soil Less than 300mm Deep. Structure shall be surrounded with a main-size
conductor lain in a trench or in rock crevices. Accomplished by depositing
approx. _____ of ____mm thick copper plate…

Metal Bodies. All metal bodies of conductance having an area
of _____ or a volume of _____ or greater shall be bonded to the lightning protection system

Bonding Requirements for Metal Bodies of
Conductance.
Bonding plate having a surface contact area or _______.

Bonding Requirements for Metal Bodies of
Inductance.
Connections to metal bodies of inductance are required if such bodies fall
within ____mm of the main conductor or other bonded metal body

FASTENERS > Anchors. Masonry anchors shall have a diameter of not
less than 6.4mm and shall be set with care. Capable of withstanding a pull test
of ____ Newtons

Splicers and Clamps. Pull test of ____N.

Concealment in Concrete. If roof conductors are similarly embedded,
connections to reinforcing steel shall be made at intervals not exceeding ___m

Grounding. If a ground is driven from the basement floor
level, it shall be in contact with earth for a distance of ____mm

Structural Steel Framing > Air Terminals. Shall be bonded to the steel framework at
intervals of not more than ___m

> Grounding. Ground connections shall be made at
approximately every other steel column around the perimeter, and shall not
average over ___m apart

> Ground Terminals. Surface contact area of .not less than _____.

Protection for Heavy-Duty Stacks > General. A smoke or vent stack is classified as
heavy-duty if the cross-sectional area of the flue is greater than ______
and the height is greater than ___m

Materials > Corrosion Protection. Copper and bronze materials used on the upper
____mm of a stack shall have a continuous covering of lead having minimum
thickness of ____mm to resist corrosion by flue gases

Air Terminals > They shall be uniformly distributed around the
top of cylindrical stacks at intervals not exceeding ____mm. On square or
rectangular stacks, air terminals shall be located not more than ____mm from the
corners and shall be spaced not more than ____ mm apart around the perimeter

> Air terminal Heights. Height of air terminals above stacks shall be
not less than ___mm nor more than ___mm. They shall be at least ___mm in
diameter

> Top-mounted Air Terminals. Shall not extend more than ___mm above the top
of the stack

Heavy-duty stacks> Conductors. Shall be copper weighing not less than ___ grams
per meter without lead covering. The size of any wire in the conductor shall be
not less than

> Down Conductors. Not less than ___ down conductors shall be
provided. Conductors shall also be interconnected at intervals of ___m on all
stacks exceeding 60m in height

> Down Conductors. Shall be protected from physical damage or
displacement for a distance of not less than ___mm above grade

Fasteners > Vertical Conductors. Shall be fastened at intervals not exceeding
____mm and horizontal conductor at intervals not exceeding ____mm

Splices > Pull test : ____N.. and Distance not less than ___mm,
measured parallel to the axis of conductor

Bonding > Bonding Plates. Surface contact area not less than _______.

Grounding > If driven ground rods are used, they shall be
the equivalent of a copper-clad rod having a diameter of ____mm and shall be at
least _____mm in length

Sheet Steel. Sheet steel less than ___mm in thickness may be
punctured by severe strokes and  shall
not be relied upon us protection from direct lightning strokes

The
minimum clearance between the Overhead
Ground Wires and the highest projection on the protected structure shall be
_____mm

For
each 3000mm of lead between a point on the ground wire midway between the
supporting masts and ground in excess of ___m, the clearance shall be increased
by ___mm

Floating Roof Tanks > Protection. Where floating-roofs utilize hangers located
within a vapour space, the roof shall be electrically bonded to the shoes of
the seal through the most direct electrical path at intervals not greater than
____mm on the circumference of the tank

> These
shunts shall consist of flexible Type
___, ____mm x ___mm wide stainless steel straps, or the equivalent in
current-carrying capacity and corrosion resistance.