General Order 95

Section II

Definitions of Terms as Used in The Rules of This Order

22.8     Protective Covering, Suitable, means a covering of wood or other non-conductive material having the electrical insulating efficiency (12kV/in.dry) and impact strength (20ft.-lbs) of 1.5 inches of redwood or other material meeting the requirements of Rule 22.8-A, 22.8-B, 22.8-C or 22.8-D.

A.       Ground Wire, Bond Wire, and Communication Conductor shall be covered by a minimum of:

(1)       Hardwood Moulding (of Oak or Rock Elm) three-eighths inch in thickness, or Douglas Fir moulding one-half inch in thickness, or any of these woods having a cross-section as shown in Figure 81 of Appendix G.

(2)       Flexible and Rigid Conduit, and Rigid U-Shaped Moulding of plastic or other material, as tested according to National Electrical Manufacturers Association (NEMA) Standards TC 2-  1998 (for Plastic Conduit) and TC 19-2001 (for Plastic U-Shaped Moulding), shall:

a)       Have a normal temperature minimum impact strength equal to one-half inch nominal EPC-40-PVC conduit (50 ft.-lbs) using the test method specified in NEMA TC 2- 1998, and a low temperature minimum impact strength equal to 12.5ft.-lbs using the test method specified in TC 19-2001 and

b)       Have a minimum insulating efficiency of 12 kV/in. dry and

c)       Meet the minimum sunlight resistance of 100,000 Langleys, or equivalent laboratory ultra violet test, of TDC 19-2001.

d)       On wood poles and structures, they shall be installed only outside the climbing space unless installed in accordance with Rule 54.6-C (for lateral conductors).

(3)       Plastic or other non-conductive material meeting the requirements of Rule 22.8-A2.

B.       Supply Conductor shall be covered by a minimum of:

(1)       Rigid Conduit or Rigid U-shaped Moulding made of plastic or other material, as tested according to the National Electrical Manufacturers Association (NEMA) Standards – TC 2-1998 (for Plastic Conduit) and TC 19-2001 (for Plastic U-Shaped Moulding) shall:

a)       Have a normal temperature minimum impact strength equal to one-half inch nominal EPC-80-PVC conduit (93.75 ft.-lbs) using the test method specified in TC 2-1998, and a low temperature minimum impact strength equal to 23ft.-lbs using the test method specified in TC 19-2001 and

b)       Have a minimum insulating efficiency of 12kV/in. dry and

c)       Meet the minimum sunlight resistance of 100,000 Langleys, or equivalent laboratory ultra violet test, of TC 19-2001.

d)       On wood poles and structures, they shall be installed only outside the climbing space unless installed in accordance with Rule 54.6C (for lateral conductors).

Note:     Original reference to plastic pipe, now plastic conduit – revised June 7, 1965 by Decision No. 69071 September 12, 1973 by Decision No. 81871 February 13, 1980, by Resolution No. E–1863 and May 22, 1990 by Resolution No. SU–5. Reference to rigid U–shaped moulding added January 6, 1968 by Decision No. 73455. Revised September 12, 1973 by Decision No.&ensp 81872 and February 13, 1980 by Resolution No. E–1863.

C.       Bolt Covers made of non-conducting shield or covering shield or covering having the insulating efficiency and mechanical strength of one-half inch EPC-40-PVC conduit (see Rule 22.8-A2).

Note:     Added March 9, 1988 by Resolution E–3076.

D.       Insulated Flexible Conduit may be used to cover conductors or cables of 0 - 750 volts for the purpose of entering pole mounted apparatus. The insulated flexible conduit shall have a minimum insulating efficiency and mechanical strength of one–half inch EPC–80–PVC conduit (see Rule 22.8–B).

Note:     Entire Rule 22.2 revised January 19, 1994 by Resolution SU–25 and January 13, 2006 by Decision No. 05-01-030.