March 2012 © 2007–2012 Chevron U.S.A. Inc. All rights reserved. i of i

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SID-SU-5106-B

SAFETY IN DESIGNS

Incorporating Human Factors Engineering

APPLICATION: ONSHORE, TOPSIDES, FLOATING/FIXED PLATFORMS,FPSO MARINE & HULL, LNG (FACILITIES)

Rev Date Description Author Sponsor

A 05/08 General Revision

B 03/12 General Revision TDEK TDEK

March 2012 © 2007–2012 Chevron USA Inc. All rights reserved. ii of iii

Safety In Designs

Section 1 Walkways, Workspace, and Access to Equipment and Materials .......... 13

Section 2 Railings ........................................................................................................ 35

Section 3 Stairways, Ramps, Stiles, Walkways, and Platforms ............................... 45

Section 4 Ladders ........................................................................................................ 76

Section 5 Guards: Mechanical, Hot Surface, and Chemical Spray .......................... 91

Section 6 Electrical Equipment ................................................................................. 108

Section 7 Access for Physically Disabled Employees ........................................... 122

Section 8 Safety Shower/Eyewash Units and Chemical Hazards .......................... 128

Section 9 Occupational Environment ....................................................................... 140

Section 10 Safe Design for Maintenance and Equipment/Material Handling ......... 162

Section 11 Offshore Facilities ..................................................................................... 170

Section 12 Construction Activities ............................................................................. 194