SR EN 50525-2-21:2011
Electric cables - Low voltage energy cables of rated voltages up to and including 450/750 V (Uo/U) -- Part 2-21: Cables for general applications - Flexible cables with crosslinked elastomeric insulation
EN 50525-2-21 applies to flexible cables, insulated with crosslinked elastomeric compound, and sheathed with either crosslinked elastomeric compound or thermoplastic polyurethane (TPU). The cables are of rated voltages U0/U up to and including 450/750 V. The cables are intended for a variety of applications where appliances or equipment, including heavy industrial equipment, require a flexible connection to the power supply. The maximum conductor operating temperatures for the cables in this standard are 60 °C (R types), 90 °C (B types) and 110 °C (G types). The following particular cable types are included: - General purpose cables (RR and RN types); - Water-resistant cables (RN8 types); - General purpose cables (BB and BN4 types); - TPU sheathed cables (BQ types); - Heat resistant cables (GG types) NOTE HD 516 contains extensive guidance on the safe use of cables in this standard. This EN 50525-2-21 should be read in conjunction with EN 50525-1, which specifies general requirements.
Status :
Valid
Approval date : 11/30/2011
Number of pages : 46
ICS : 29.060.20 Cables
Technical Committee : 159 - Electric cables
- Replaces SR HD 22.11 S2:2007
- Replaces SR HD 22.4 S4:2004
- Replaces SR HD 22.16 S2:2007
- Replaces SR HD 22.10 S2:2007
- Replaces SR HD 22.12 S2:2007
- Normative reference SR EN 50396:2006
- Normative reference SR EN 60332-1-2:2005
- Normative reference SR EN 60228:2005
- Normative reference SR EN 50395:2006
- Normative reference SR EN 60811-1-1:2002/A1:2003
- Normative reference SR EN 50363-2-1:2006/A1:2011
- Normative reference SR EN 50363-1:2006
- Normative reference SR EN 60811-1-2:1996/A2:2003
- Normative reference SR EN 50395:2006/A1:2011
- Normative reference SR EN 60811-1-4:1995
- Normative reference SR EN 50525-1:2011
- Normative reference SR EN 60811-1-2:1996
- Normative reference SR EN 50396:2006/A1:2011
- Normative reference SR EN 50363-10-2:2006
- Normative reference SR EN 60811-1-1:2002
- Normative reference SR EN 50363-2-1:2006
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