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  • Users: MAXIWANG
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  1. MAXIWANG

    Teck cable under -40C

    I need run 3#12+GND Teck cale in an environment with -40c. are there any special requirement for this? Thanks in advance.
  2. MAXIWANG

    Whether to replace the breaker?

    My mechanical people is going to downsize a condenser, which is fed from a 70A breaker in a panel, and with a local disconnect switch. the motor protection is integrated inside the unit. The new condenser only needs a 40A breaker. Now my question is do I really need to replace the 70A in panel...
  3. MAXIWANG

    Transformer wiring

    I was sizing the wires for transformer by using the data sheet. Then I saw the things like this: Three Phase 600-120/208v 30Kva, Primary 3#8-16mmC, Secondary 4#2+GND-35mmC. Single Phase 600-120/240v 25Kva, Primary 2#6-21mmC, Secondary 3#1-41mmC. My questions are 1. why we need grounding for...
  4. MAXIWANG

    Motor starter

    Can anybody tell me the difference between manul starter, magnetic starter and combination starter? How to choose which one i should use? thanks in advance.

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