Ducting Systems Introduction Flashcards
What colour duct is used for water service?
blue
Coiled twinwall duct comes complete with what?
Drawstring & 1 coupler
What diameters is General Purpose duct available in?
2”, 3”, 4”, 6” & 8”
What colour duct is used for BT applications?
Grey
What are the outside diameters of the duct available for BT applications?
54mm & 96.5mm
Does all twinwall duct comply with ENATS 12/24 ?
No
Which twinwall products comply with ENATS 12/24
Polypipe Ridgiduct & Naylor Class 2 twinwall duct
What colour duct is used for gas service?
Yellow
What diameters of duct are available in coils (outside dia)
40, 50, 63, 90, 110, 160mm
Perforated yellow coils of duct are available in what outside diameters?
60mm, 80mm, 100mm, 160mm
What is the purpose of split duct?
Repairing already installed damaged duct or for ducting existing cables
What colour ducting would you use for Motorway communications?
Purple
Who manufactures twinwall ducting?
Naylors & Polypipe Civils
Who manufactures Pvc Power ducting?
Emtelle
If asked to supply Class 1 power ducting what material is it made from?
uPVC
Can General purpose duct be installed under roads?
No
Polypipe Ridgiduct is available in what diameters (inside diameter) ?
100mm, 125mm, 150mm
(Generally ) The twinwall duct in stock is made to what standard?
BSEN50086-2-4
What material is twinwall duct made from?
HDPE
What is HDPE and abbreviation of?
High density polyethelene
What is UPVC an abbreviation of?
unplasticised polyvinyl chloride
63mm & 110mm coiled duct comes in what length coil?
50mtr
160mm coiled duct comes in what length coils?
25mtr & 50mtr
What is the inside diameter of 110mm twinwall duct?
94mm
Twinwall duct comes in coils & lengths - how long are the lengths?
6mtr
What is the inside diameter of 63mm twinwall duct?
50mm
Perforated yellow coils of duct are manufactured to what standard?
BS4962
What length is a roll of detectable marker tape ?
100mtr
What length is a roll of normal (nondetectable) marker tape?
365mtr
