Appendix II
LIST OF FIGURES
Figure
No. |
Title |
| 1 |
Typical layout drawing of a machine. |
| 2 |
Sample bill of material (to accompany layout drawing
shown on figure 1) |
| 3 |
Material to be included with the operating
instructions on or with the wiring diagram submitted
to each customer. |
| 4 |
Sample factory inspection form. |
| 5 |
Typical plane joint. |
| 6 |
Typical combination joint. |
| 7 |
Typical threaded joint. |
| 8 |
Typical threaded straight stuffing box and packing
gland lead entrance with provision for hose conduit. |
| 9 |
Typical slip-fit straight-type and angle-type stuffing
box and packing gland lead entrance. |
| 10 |
Typical slip-fit angle-type stuffing box and packing
gland lead entrance and typical plug for spare lead
entrance hole. |
FIGURE 1
TYPICAL LAYOUT DRAWING OF A MACHINE
See MSHA Illus. 20
FIGURE 2--SAMPLE BILL OF MATERIAL
| |
| B. of M. No. __________ |
| |
| Date _____________ |
| |
| Revision |
| |
| Date |
| |
| 1. ______________ |
| |
| 2. ______________ |
| |
| 3. ______________ |
| |
| 4. ______________ |
| |
| 5. ______________ |
Bill of Material (Electrical)
| |
| (Manufacturing Company) |
| Model: |
| _____________________________________ |
| |
| (Unit Name) |
| Approval 2-G- |
| _____________________________________ |
| Motor: |
| _____________________________________ |
| |
| (Manufacturing Company) |
| Frame |
| _____________________________________ |
| ______Hp., |
| ______Volts, ______Ph., |
| ______Cy., |
| ______R.P.M. |
| X/P |
| ______________________________(Date). |
| |
| ______________________(Date) Extension. |
| Starter: |
| _____________________________________ |
| |
| (Manufacturing Company) |
| Model |
| _____________________________________ |
| ______Hp., |
| ______Volts. |
| X/P |
| _____________________________________ |
| |
| (Date) |
| ____________ |
| Extension. |
| (Date) |
| |
| Cable-Motor |
| to Starter: |
| Cond. No. |
| _____, ____" |
| O.D., |
| ________' Long |
| Hose-Motor |
| to Starter Cable: |
| ____" I.D., |
| ____" O.D., ____' Long |
| Portable |
| Trailing Cable: |
| Type: |
| _____________________________________ |
| Cond. No. |
| ____" O.D., ____' Long |
| Hose-for |
| Portable Cable: |
| ____" I.D., |
| ____" O.D., ____' Long |
| Hose Clamps- |
| |
| |
| 2 for Motor-Starter Hose conduit _____"D.
1 for Portable Cable Hose conduit ____"D* |
| |
| *Only when short length of hose is used. |
| Trolley Tap - |
| |
| |
| (Manufacturing Company) |
| Model |
| ____________________________ with |
| _______ |
| ampere fuse |
| Rail Clamps, |
| 2. |
| 1 Ground |
| Clamp ____" O.D., ____' Long |
| |
| (Manufacturing Company) |
| or-as Optional |
| |
Plug on outby end of potable cable for insertion into receptacle on
distribution box or equivalent with short-circuit protective device set at
________amperes.
Static-free Belt
Model
Style
Catalog No. __________,
(Manufacturing Company)
Guard for Belt--
Material ____________________________________________________
Overall Dimensions ________" Long x ________"
Wide x ________" High
NOTE: The foregoing is intended as a guide. Additional electrical components
used shall be completely identified.
FIGURE 3--MATERIAL TO BE INCLUDED WITH THE OPERATING INSTRUCTIONS--
ON OR WITH THE WIRING DIAGRAM SUBMITTED TO EACH CUSTOMER
(Sometimes referred to as "Caution Statement")
CAUTION
To retain "permissibility" of this equipment the following conditions shall
be satisfied:
1. General safety. Frequent inspection shall be made. All electrical
parts, including the portable cable and wiring, shall be kept in a safe
condition. There shall be no openings into the casings of the electrical
parts. A permissible distribution box shall be used for connection to the
power circuit unless connection is made in fresh intake air. To maintain the
overload protection on direct-current machines, the ungrounded conductor of
the portable cable shall be connected to the proper terminal. The machine
frame shall be effectively grounded. The power wires shall not be used for
grounding except in conjunction with diode(s) or equivalent. The operating
voltage should match the voltage rating of the motor(s).
2. Servicing. Explosion-proof enclosures shall be restored to the
state of original safety with respect to all flame arresting paths, lead
entrances, etc., following disassembly for repair or rebuilding, whether by
the owner or an independent shop.
3. Fastenings. All bolts, nuts, screws, and other means of fastening,
and also threaded covers, shall be in place, properly tightened and secured.
4. Renewals and repairs. Inspections, repairs, or renewals of
electrical parts shall not be made unless the portable cable is disconnected
from the circuit furnishing power, and the cable shall not be connected again
until all parts are properly reassembled. Special care shall be taken in
making renewals or repairs. Leave no parts off. Use replacement parts exactly
like those furnished by the manufacturer. When any lead entrance is
disturbed, the original leads or exact duplicates thereof shall be used and
stuffing boxes shall be repacked in the approved manner.
5. Cable requirements. A flame-resistant portable cable bearing a
MSHA assigned identification number, adequately protected by an automatic
circuit-interrupting device shall be used. Special care shall be taken in
handling the cable to guard against mechanical injury and wear. Splices in
portable cables shall be made in a workmanlike manner, mechanically strong,
and well insulated. Not more than five temporary splices are permitted in a
portable cable regardless of length. Connections and wiring to the outby end
of the cable shall be in accordance with recognized standards of safety.
FIGURE 4--SAMPLE FACTORY INSPECTION FORM
| |
Date ____________ |
| |
Inspector ______________________ |
MACHINE
| Designation: |
________________________________________________ |
| Type: __________ |
Serial No._____________ |
MOTOR
Manufacturer: __________________________________________________
Serial No.: ____________ Type:____________________
Frame: _________________________________________
H.p._________, F.L. Speed: ____ Volts: ____ Amps. ____
Winding: ____ X/P No. ____ (or parts list designation).
Starter
Manufacturer: __________________________________________________
Serial No.: ____________ Type:____________________
H.p. ______ Volts: ____ X/P No. _____ (or parts list designation).
Short-circuit protection ____ amps.
Overload-current protection ____ amps.
PORTABLE CABLE
Manufacturer:
__________________________________________________
Type: ____________ Conductors: __________
Length: _____ O.D. ____ MSHA No. ______
Is all wiring around machine adequately protected from mechanical damage?
By hose conduit ________, Troughs ________
Metal tubing ________, Other ________
By removal of all sharp corners or edges? __
Is wiring separated from hydraulic components? _____________________
Is an adequate insulated strain clamp provided for the portable cable? ________
Are all packing glands properly packed so that 1/8-inch clearance remains
between packing nut and stuffing box? ________
Are lockwashers (or equivalent) provided for all explosion-proof enclosure
fastenings? ________
Are all plane joints securely fastened so that an 0.005-inch feeler gage
cannot be inserted? _________
Are all threaded covers secured? ____________
How? __________________________________
Are all electrical connections secure ____ and properly insulated where
necessary? _____________________________
NOTE: Add appropriate material for each explosion-proof enclosure when more
than a motor and starter are on a machine.
FIGURE 5--TYPICAL PLANE JOINT
See MSHA Illus. 21
FIGURE 6--TYPICAL COMBINATION JOINT
See MSHA Illus. 22
FIGURE 7--THREADED JOINT
See MSHA Illus. 23
FIGURE 8--TYPICAL THREADED STRAIGHT STUFFING, BOX AND PACKING
GLAND LEAD ENTRANCE WITH PROVISION FOR HOSE CONDUIT
See MSHA Illus. 24
FIGURE 9--TYPICAL SLIP-FIT ANGLE TYPE STUFFING BOX
PACKING GLAND LEAD ENTRANCE WITH HOSE CLAMP
TYPICAL SLIP-FIT STRAIGHT TYPE STUFFING BOX
AND PACKING GLAND LEAD ENTRANCE
See MSHA Illus. 25
FIGURE 10--TYPICAL SLIP-FIT ANGLE TYPE STUFFING BOX AND PACKING
GLAND LEAD ENTRANCE
TYPICAL PLUG FOR SPARE LEAD ENTRANCE HOLE
See MSHA Illus. 26
[33 FR 4660, Mar. 19, 1968, as amended at 42 FR 8373, Feb. 10, 1977; 42 FR
25855, May 20, 1977]
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