– The caloric load values (calculated value):
PVC-core insulation 6,3 kWh/kg
PVC-sheath material 5,7 kWh/kg
PVC (lower limint) 5,6 kWh/kg
H-core insulation 4,8 kWh/kg
H-sheath material 4,2 kWh/kg
PE general 12,2 kWh/kg
PP general 12,8 kWh/kg
The conversion the values:
1 MJ/m2
0,278 kWh/m2
, kWh/m2
3,6 MJ/m2
Class Insulating material Impregnation material max.For designing building the criterions the caloric
load values are very important. The caloric load values
of the modern halogen-free cables are reduced by
corresponding additives. continuous Cable type
temperature
Y Cotton, Synthetic and natural silk, 90°C HELUKABEL®
Polyamide bres, Paper, PVC Neoprene
Polyvinylchloride (PVC), Polyethylene (PE), cables
Vulkanised rubber
A Cotton, Synthetic and natural silk, Bitumous varnish Synthetic resin 105°C HELUTHERM®
Polyamide, Paper, heat-resistant varnish Insulating oil and single cores, control cables
impregnated textiles, Polyester resin synthetic dielectrical uids CSA-approved
(E) Special wire enamel, Synthetic resin varnish and 105°C HELUTHERM®
120
Special synthetic foils, Polyester resin, both with (short time
Compressed material with cellulose llers, permissible continuous with- operation 120°C)
Paper and cotton tapes stand temperature 120°C
B Glass bre, Micaproducts, under but with permis- 145°C HELUTHERM®
145
Special synthetic foils, sible continuous withstand
Compressed materials with mineral llers temperature 130°C
F Glass bre, Micaproducts, Resins with permissible 155°C HELUTHERM®
145
Aromatic polyamides, continuous withstand
Impregnated glass bre braides temperature 155°C
H Glass bre, Micaproducts, Silicone resins with 180°C Silicone HELUFLON®
Aromatic polyamides, Silicone rubber, permissible continuous withstand tinned conductors
Polyamide foils, PTFE temperature 180°C
C Mica, Porcelain, Glass, Quartz, under but with permis- 180°C HELUFLON®
PTFE+FEP with
and similar resistant materials sible continuous withstand tinned nickel plated
temperature 225°C conductors, HELUTHERM®
400/600/800/1200
HEAT-RESISTANCE CLASSES
CALORIC LOAD VALUES (HEAT COMBUSTION)
1109
Y
.
Regulations:
The total caloric load the cables are allowed 14
kWh per m2
of the eld areas only halogen-free cables
with improved characteristics the case are used.
The speci heating values the non-metallic raw
materials for cables are speci DIN 51900.
The tables are subdivided according the different cable
designs, with halogen-free halogenated insulation,
number cores with different cross-sections.
With these tables the caloric load values our cables
we will give you the possibility accomodate your
calculations for the application these cables.
If you use PVC cables the total caloric load only 7
kWh per m2
. The
values the caloric load heat combustion for
electrical cables are given per running meter the
following tables
