Au produit ionique de l’eau, on associe une autre

grandeur nommée 

What size supply conductors would be required when

feeding a group of four welders with nameplates, as shown in Table 13-2?

This type of welder is considered as transformer arc welders.

Termination temperature found on the equipment is 75 degree C.

 Use 230 volts , 90 A and 100% duty cycle:

What size overcurrent device is required for the

welder indicated in Table 13-2?

This type of welder is considered as transformer arc

welders.

Termination temperature found on the equipment is 75 degree C.

 Use 230 volts , 90 A and 100% duty cycle:

What size branch-circuit conductors are required for

the welder indicated in Table 13-2 in your book? 

 Use 230 volts , 90 A

and 100% duty cycle:

A welder with its own integral disconnecting means (mounted on the welder) also requires a separate disconnecting means (Mounted on the wall) for extra safety.

If, for some reason, the circuit breaker will not allow the motor (squirrel-cage)  to start, your breaker is inverse-time circuit breaker type, and the motor FLA is 378 amps what would be the maximum size of breaker adjustment that you could use.