Fire-resistant flame-retardantcontrol cableswith low gas and fume emission
КВВГнг(А)-FRLS, КВВГЭнг(А)-FRLS
DESIGNATION
Cables are designed for connection of electrical deviceswith alternating voltage up to 660 V and 100 Hz frequency or direct voltage up to 1000 V.
Cables of following models are manufactured:
|
Model |
Definition |
Basic technologicalregulations |
|
КВВГнг(А)- FRLS |
Fire-resistant control cable with copper conductors, with insulation and sheath of flame-retardantPVC compoundwith low gas and fume emission |
GOST 1508 |
|
КВВГЭнг(А)- FRLS |
Fire-resistant control cable with copper conductors, shielded with aluminum or copper foil, with insulation and sheath of flame-retardantPVC compoundwith low gas and fume emission |
GOST 1508 |
ARRANGEMENT
CONDUCTOR:copper, solid.
INSULATION: flame-retardantpolyvinylchloride (PVC) compoundwith low gas and fume emission
SHEATH: flame-retardantPVC compoundwith low gas and fume emission
Each conductor of any cable model shall be straight braided with two mica tapes
FILLING:insulated stranded conductors shall be laid with PVC compoundfilling
Is allowed to apply polyethylene terephthalate film instead of filling in КВВГЭнг(А)-FRLS cables.
SHIELDING:КВВГЭнг(А)-FRLS cables' inner extruded filling shall be shielded with copper foil or tape braiding or aluminum foil with covering providing denseness of shielding when cable is bended at permissible radius. It is allowed to use aluminoflex by aluminum layer to the inside.
A tinned copper contact wire shall be laid along the shielding over metal layer.
NUMBER OF CONDUCTORS:4,5,7,10,14,19.
CONDUCTORAREA, mm²:0.75;1.0;1.5;2.5;4.6.
TECHNICALSPECIFICATIONS
Operating temperature range - from -30˚С to +50˚С.
Maximal permissible continuous conductor heating temperature: +70°Сю
Minimal operating cable bend radius shall not be less than ten outer cable diameters.
Cables shall not spread combustion when laid as harness.
Fume emission during combustion and smoldering shall not decrease the light flux in test chamber by more than 50%.
Cables shall be fire-resistant for not less than 180 minutes' period of combustion.
Factorylength - 150 m.
Operational life - 15 years.
Regulations: Technical Specifications BY 500017371.072-2013,Technical Specifications 16-705.337-2004(manufactured under license of JSC "All-Russian Research and Development Institute for Cable Industry")