Project Number: 228730 WWTE SCADA Upgrades
Issue Date: August 2017 Nashua, NH
A.
Materials and equipment shall be listed by UL unless it can be demonstrated that
no UL standards exist for a specific item or class of equipment.
All other materials, not specifically described but required for a complete and
operable electrical installation, shall be new, first quality of their respective kinds,
specification grade or better, and as selected by the Contractor subject to the
acceptance by the Engineer.
All materials and equipment furnished and installed on this project shall meet the
most stringent efficiency standards of the local utility to qualify for the maximum
rebate.
2.02 MATERIAL AND CONSTRUCTION REQUIREMENTS
A.
Unless otherwise shown or specified, all enclosures, motors, wiring and other
materials and all construction methods shall conform to the following:
1. Outdoors, Moist and Wet Location Areas - NEMA 4X, watertight.
Enclosures shall be cast aluminum or stainless steel. Where indicated on
electrical plans, or other sections of the specifications, provide NEMA 4X
enclosures of stainless steel or reinforced non-metallic (Krydon)
construction. All installations shall utilize only stainless steel
fasteners/hardware.
2. Indoor-Outdoor, Subject to Submersion in Liquid - NEMA 6, submersible,
liquid tight construction. Enclosures shall be cast aluminum.
3. Hazardous Areas - NEMA 7 & 9, explosion-proof construction for Class
1, Division 1, Group D areas. Enclosures shall be cast aluminum.
2.03 INTERCHANGEABILITY
A.
In all design and purchasing, interchangeability of items of equipment,
subassemblies, parts, motors, starters, relays and other items is essential. All
similar items shall be of the same manufacturer, type, model and dimensions.
For ease of maintenance and parts replacement, to the maximum extent possible,
use equipment of a single manufacturer.
The Engineer reserves the right to reject any submittal which contains equipment
from various manufacturers if suitable materials can be secured from fewer
manufacturers and to require that source of materials be unified to the maximum
extent possible.
PART 3 - EXECUTION
3.01 COORDINATION
COMMON WORK RESULTS FOR ELECTRICAL
WOODARD & CURRAN 26 05 00-10
