Make before break test principle Injection with 2x4 poles test plug 01 02 03 04 1 2 Not used equipment 3 Injection 4 COR-T-R5-2.2 1 01 2 02 3 03 N L1 L2 L3 4 04 1 01 2 02 Equipment 3 03 4 04 4 1SNC169006S0201 PAGE 31