Transcript CABLE STANDARDS BS4737-3.30:2015 CQR Fire & Security Back ground • PD6662:2004 did not included BS4737-3.30:1986 • In 2013 the BSI received a request from the industry.

CABLE STANDARDS
BS4737-3.30:2015
CQR Fire & Security
Back ground
• PD6662:2004 did not included
BS4737-3.30:1986
• In 2013 the BSI received a request from the
industry to revised the standard
• Why revise the standard?
– Current standard was published in 1986
– New conductor materials
– New sheathing and insulation materials
Requirements
• 3 cable construction types.
• More stringent testing.
• Improved labelling/identification
requirements.
Cable construction types
Type
Resistance
Insulation & Sheathing
1
Maximum 100 ohms/km
Low smoke Halogen free
2
Maximum 100 ohms/km
PVC
3
Maximum 155 ohms/km
PVC
• Multi or single wires of the same material
• The conductors shall be the same in a single
cable
• The conductor can be Tinned or plain
Labelling & identification
• Any of the below is allowable
• Visible labelling affixed to the outside of the
drum or box
• A coloured rip cord
( 1= Green, 2= Red , 3= Yellow)
• Printed on the cable
(may be an abbreviated to allow a cross
reference to available documentation)
Visible Labelling
a)
b)
c)
d)
e)
f)
g)
h)
The name/identification of the manufacturer
The standard (BS4737-3.30:2015)
The type (1,2 or 3)
The length of cable in meters
The number of cores
The conductor construction (solid or stranded)
The resistance in ohm/km
Date of manufacture or batch number
Implementation
• Will be included in the next revision of PD6662
• Pending this it is called up in an Industry agreement
IA 1501:2015
– When cable is installed by the alarm company, including
any sub-contractor to the alarm company, it should
conform to BS4737-3.30:2015
– When existing systems are upgraded or added to, then
cable conforming to BS4737-3.30:2015 should be used on
the new part of the installation. However it is not
necessary to replace any cables already in situ.
– Note: To enable clearance of stock, cabling not conforming
to BS4737-3.30:2015 may be used for contracts entered
into up until 31st March 2016.
From November 1st 2015, CQR Fire and Security will offer cables
that fully comply with all requirements of BS4737-3.30:2015.
We offer Type 1 LSZH , Type 2 , and Type 3 cables in a extensive
range of types for all Security and Data applications.
CQR Fire & Security – First for Quality.
WWW.CQR.CO.UK
Tel Sales 0044 (0)151 606 1000