Online Calculator - Intrinsic Safety Calculator

Intrinsic Safety Calculator

Perform intrinsic safety entity calculations based on simplified entity calculation from AS/NZS 60079.25 which is an adoption of IEC 60079-25.

Input Data:

This color indicates

Field Device Parameters:

Equipment Certificate

Equipment Protection Type

Equipment Manufacturer

Equipment Model

Max Input Voltage, Ui

Max Input Current, Ii

Maximum Input Power, Pi

Internal Capacitance, Ci

microF

Internal Inductance, Li

Barrier Parameters:

Barrier Certificate

Barrier Protection Type

Barrier Manufacturer

Barrier Model

Max Open Circuit Voltage, Vo

Max Output Current, Io

Max Output Power, Po

Max External Capacitance, Co

microF

Max External Inductance, Lo

Barrier Internal Capacitance, B_Ci

microF

Barrier Internal Inductance, B_Li

Cable 1 Details:

Construction

Cable Capacitance, Cc1

uF/100m

Cable Inductance, Lc1

mH/100m

Length, L1

Cable 2 Details:

Cable Construction

Cable Capacitance, Cc2

uF/100m

Cable Inductance, Lc2

uH/100m

Cable Length, L2

Calculation output:

Total Ext Capacitance, C_total

microF

C_total = Ci + B_Ci + Total Cable Capacitance

Total Ext Inductance, L_total

L_total = Li + B_Li + Total Cable Inductance

Ui >= Uo

Ii >= Io

Pi >= Po

C_total <= Co

L_total <= Lo

Ci+B_Ci <= 1%Co OR Li+B_Li <= 1%Lo

C_total <= Co/2

L_total <= Lo/2

PASS or FAIL

Nexans - Instrolex Cable