Building Practice Requirements Rbs 2000 - Ericsson CME 20 R6.1 Reference Manual

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Building Practice Requirements RBS 2000

This chapter specifies the building practice requirements for RBS 2000.
43.1 Fire Resistance
The fire resistance of assemblies for Ericsson equipment are based on
the properties of the materials, components and cables which are used
for the construction of these assemblies. The properties concerning fire
resistance are measured according to widely accepted national and
international standards.
Fulfilled standards
For Europe the following standard is met:
EN 60 950 Safety of Information Technology (IEC 950).
For US the following standards is met:
UL 1950 third edition."Safety of Information Technology Equipment
Including Electrical Business Equipment".
For Canada the following standard is met:
CAN/CSA-C22.2 No 950 Safety of information technology including
electrical business Eq.
43.1.1 Criteria for fire resistance of wire and cables
For Europe the following standard are used:
IEC standard 332, Part 1.
IEC standard 332, Part 3 Category C.
For the US and Canada the following standards are used:
UL 1581, section 1160
UL 1685, Fire-propagation and Smoke-release
CAN/CSA-C22.2 No 03.
43.1.2 Criteria for fire resistance of components.
IEC Standard 695-2-2, Fire Hazard Testing, part 2 Test Methods -
Needle Flame Test, with application times according to the table below:
Table 81
Components volume (mm³)
<250
250 - 500
500 - 1750
> 1750
Required test result:
The afterburning time for a component may not exceed 15 s. No
burning or glowing particles may fall from specimen.
EN/LZT 123 2697 R5A
1998-08-13
Fire resistance of components
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Building Practice Requirements RBS 2000
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