Specifications

PIP ELSGS01
COMPLETE REVISION
Design and Fabrication of High-Resistance Grounding System (600 Volts or Below) July 2004
Page 8 of 11 Process Industry Practices
4.9 Space Heaters
4.9.1 All enclosures shall have space heaters.
4.9.2 Space heaters shall be rated for 240 volts and operated at 120-volts AC.
4.9.3 Unless specified otherwise on the purchaser’s data sheet, PIP ELSGS01D,
space heaters shall be controlled by a thermostat that shall be adjustable
between 15°C (59°F) and 30°C (86°F).
4.9.4 Space heaters shall be completely wired for connection to an external power
source.
4.9.5 Space heater load shall be as specified on the purchaser’s data sheet,
PIP ELSGS01D.
4.9.6 Space heaters shall be provided with expanded metal cages to protect
personnel from contact with the hot surface.
4.9.7 Wiring to the space heater terminals shall be rated for the temperature of the
heater.
4.9.8 Maximum sheath temperature of space heaters shall be 200°C.
4.10 Painting
4.10.1 External and internal steel surfaces of grounding system enclosure shall be
painted.
4.10.2 Unless otherwise specified on the purchaser’s data sheet, PIP ELSGS01D,
paint color shall be ANSI 61 light gray.
4.10.3 Unless otherwise specified on the purchaser’s data sheet, PIP ELSGS01D,
interior color shall be manufacturer’s standard.
4.10.4 The finish coat shall be free from craters, pinholes, holidays, embedded
foreign matter, and other visual defects.
4.10.5 The topcoat shall provide complete hiding, consistent coverage and
thickness, and uniform color.
4.10.6 For outdoor and indoor service in non-corrosive environments, the supplier’s
standard surface preparation and coating system are acceptable if applied in
accordance with the coating manufacturer’s written instructions and if the
finish coat is for outdoor use.
4.10.7 For service in corrosive environments, the painting and protective coatings
shall be in accordance with the purchaser’s data sheet, PIP ELSGS01D.
4.10.8 A 1-pint (0.5-L) container of paint shall be provided for field touch-up.
4.11 Nameplates
4.11.1 Unless otherwise specified on the purchaser’s data sheet, PIP ELSGS01D,
nameplates shall be made of laminated plastic with black engraved lettering
on white background. Lettering shall be 1/4 inch high, minimum.
4.11.2 Nameplates shall be attached with stainless steel screws.