Engineering Documentation

Chapter 1 – Wiring Regulations and Specifications
General Wiring Guidelines
22
| 231 125-3002
Nominal Conduit Fill—NEC Requirements.
Insulated
Conductor
Conduit I.D. Area Quantity in Conduit
2)
0.095 0.007 17 30 49 84 115 189
0.085 0.006 21 37 61 105 143 236
0.075 0.004 27 48 78 135 184 304
0.065 0.003 36 64 104 180 245 404
1)
Plenum rated cable generally has a smaller diameter than equivalent non-plenum types. Check the tables in this section
for specific applications where plenum cable must be used in conduit.
2)
Based on NEC guidelines. Allowable fill: 53% for 1 conductor, 31% for 2 conductors, and 40% for 3 or more conductors.
General Wiring Guidelines
When installing an APOGEE Automation System in a building that is already equipped
with a Building Automation System (BAS), the existing wiring can be used if the
general guidelines in this section and the specific guidelines in Chapter 2 – Network
Electrical Systems [➙ 27]are followed.
In many instances, existing conductors in a building may also be used for the trunk as
long as they meet the requirements listed in the Network Electrical Systems [➙ 27]
chapter.
● Only APOGEE low voltage input signals are present in multi-pair cables.
● Multi-pair cable containing inductive loads is not shared with any APOGEE trunk
or input wiring.
● All wiring, equipment controllers, and field panels are at least 5 ft (1.5 m) away
from power sources greater than 100 kVA.
NOTE:
Verify motor generator size. Direct on line (DOL) starters for motors greater than 25
hp generally exceed 100 kVA.
● All equipment controllers and field panels are at least 5 ft (1.5 m) away from
variable speed drives and variable frequency drives.
● Wire runs are limited to the lengths shown in specific product tables in this guide.
● Twisted pair or twisted shielded pair cable is used according to the specific
product tables in this guide.
● Conduit-sharing rules in specific product tables in this guide are used.
No electrical equipment such as PEs, EPs, relays, etc., can be mounted and wired in
any APOGEE field panel or equipment controller unless it is specifically mentioned in
the product literature. This equipment can radiate electrical noise to the circuit boards.
The metal enclosure of the control cabinet will shield the electronics from equipment
outside the enclosure.