Tap rule

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JSWALL

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What is the rule for a buss tap on 4000 Amp switchgear for reference voltage on metering equipment (E-Mon D-Mon)? I don't want to use the 10 or 25 foot rule due to the size of wire you would have to use.
 
Do you meet the qualifications to use Part VIII of Article 240? The tap rules in that area are much more liberal for that very reason.

Welcome to the forum. :smile:
 
E-Mon D-Mon directions show using a breaker for reference voltage, we don't have a breaker that can be used in most applications. I'm looking for a code that would allow me to tap a #12 or #10 to the buss.
 
E-Mon D-Mon

E-Mon D-Mon

E-Mon D-Mon directions show using a breaker for reference voltage, we don't have a breaker that can be used in most applications. I'm looking for a code that would allow me to tap a #12 or #10 to the buss.
 
230.82 (2005) lists the only items that can be ahead of the service disconnect. It lists load management devices.
 
JSWALL said:
E-Mon D-Mon directions show using a breaker for reference voltage, we don't have a breaker that can be used in most applications. I'm looking for a code that would allow me to tap a #12 or #10 to the buss.
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Tap off the bus and within 10' of conductor length enter a service entrance rated fused 'safety switch' or an enclosed breaker.
 
JSWALL said:
E-Mon D-Mon directions show using a breaker for reference voltage, we don't have a breaker that can be used in most applications. I'm looking for a code that would allow me to tap a #12 or #10 to the buss.
Click to expand...

Follow the directions they come with. We just put one in the other day. We used in-line fuses with 1/10A fuses per instructions.
 
nakulak said:
230.82 (2005) lists the only items that can be ahead of the service disconnect. It lists load management devices.
Click to expand...
But you are allowed to have upto 6 service disconnects, so this section does not come into play if you only have one 'main' and want to add a second one for metering.
 
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