Horner APG QX751 OCS - Manual (Page 20)

CH. 3 MAN0890-02-EN
August 20, 2009 Page 20 of 96 ECN # 979
3.3.1 Panel Layout Design and Clearance Checklist:
The following list provides highlights of panel layout design factors.
____Meets the electrical code and applicable standards for proper grounding, etc.?
____Meets the panel manufacturer’s requirements for grounding, etc.?
____Is the panel box properly connected to earth ground? Is the panel door properly grounded?
Has the appropriate procedure been followed to properly ground the devices in the panel
box and on the panel door?
____Are minimum clearance requirements met? (See Table 3.1.) Can the panel door be easily
opened and closed? Is there adequate space between device bases as well as the sides of
the panel and wiring ducts?
____Is the panel box deep enough to accommodate the QX751/BP?
____Is there adequate ventilation? Is the ambient temperature range maintained? Are cooling or
heating devices required?
____Are noise suppression devices or isolation transformers required? Is there adequate
distance between the base of the QX751/BP and noisy devices such as relays or motor
starters? Ensure that power and signal wires are not routed in the same conduit.
____Are there other requirements that impact the particular system, which need to be
considered?