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Electrical wiring work
ƊΧʪʀ̈ѣʀɇϩ̈ͱ͝ͱ˙ϩ˵ʪΧθͱϩʪʀϩ̈ͱ͝ϩЇɵʪ
Name
Temper grade
Applicable conditions
Flexible PVC conduit
PVC
When the protection tube is installed indoor and not
exposed to outside, because it is embedded in concrete
structure
A̷ɇϑϑߣѤʪӱɵ̷ʪʀͱ͝ʒЇ̈ϩ
Galvanized steel sheet
When the protection tube is installed indoor but
exposed to outside so there are risk of damage to the
protection tube
Class 1 PVC coated
Ѥʪӱɵ̷ʪʀͱ͝ʒЇ̈ϩ
Galvanized steel sheet
and Soft PVC compound
When the protection tube is installed outdoor and
exposed to outside so there are risk of damage to the
protection tube and extra waterproof is needed
Caution for perforating the knock-out hole
࡛
Perforate a knock-out hole by punching it with
a hammer.
࡛
After perforating the knock-out hole, apply rust
resisting paint around the hole.
࡛
When you need to pass the cables through the
knock-out hole, remove burrs on the hole and
protection the cable with a protection tape or
bushing etc.
Caution for installing communication cable
࡛
When you connect the cable, it may sag and
pressed by other parts. Therefore cables should
ɵʪѣуʪʒϩͱɇʀ̷ɇ͔Χ˵̈˝˵̷̈˝˵ϩʪʒӥϩ˵ɇɵͱуͱ͝ϩ˵ʪ
illustration.
Path for arranging
external
communication cable
Fixing location
of the external
communication cable
CAUTION
