Live Line Technology imports and stocks , Du Pont/Nomex multi-layered ATPV 100 CAL/cm2 arc flash suits into South Africa. ATPV 100 CAL arc flash suits fall into category HRC 4 arc flash protection. To get to the ATPV 100 CAL measurement , the engineer / user must perform a Hazard Risk Assessment to determine the level of exposure and need. This task can be accomplished with the proper training and software. Live Line Technology ,ATPV 100 CAL arc flash suits are Olive in colour and are a very lightweight material. The material , is inherently arc resistant and not treated materials.
Arc flashes occur when electricity jumps across the phases and cause a short circuit and subsequent flash. Arc flash occurrences are a factor are determined by the following factors : distance between the conductors, distance from the source ( transformer) , circuit breakers trip time, the available short circuit current, dirt buildup on conductors in the equipment which may affect the conductive path, moisture (humidity), circuit supply voltage, fault level , the amount of motor contribution during a fault, indoor versus outdoor applications and the distance of the operator from the switchgear.
Electricians working on distribution boards in various substations, factories and mines switchgear with medium voltage applications are at risk from arc flash occurrences. Medium voltages have the necessary potential to jump across phases, when these do occur the arc flash can be just as severe and harmful a higher voltages when the conditions allow.
To provide adequate protection, the electrician should be protected from head to toe. The ATPV 100CAL arc flash suits headkit has a clearview visor that protects from thermal effects, conductor shrapnel and blinding light generated from the arc.