West Virginia Code of State Rules › Agency 36 - Coal Mine Health And Safety › Title 36 - LEGISLATIVE EXEMPT RULE BOARD OF COAL MINE HEALTH AND SAFETY › Series 36-04 - The Movement of Mining Equipment Within Coal Mines in the State of West Virginia › Section 36-4-10 - Construction and Rehabilitation Work And Requirements

Current through Register Vol. XLI, No. 28, July 12, 2024
10.1. Where construction or rehabilitation
				work is being performed with person in by on the same ventilating split of air
				such as, cleaning of haulage roads, roof bolting, the cleaning of falls, the
				installation of structural materials and other related assignments similar to
				the aforementioned, and the use of face equipment is necessary to perform such
				work, the following procedures shall be followed:
10.1.1. Such mining equipment shall not
				operate where any bare exposed energized trolley or feeder wires are
				present.
10.1.2. When trolley and
				feeder wires are present, a certified electrician shall be designated to
				de-energize such trolley and feeder wire in the area where such equipment is
				operating. De-energizing devices in the D.C. trolley and feeder wire system
				shall be opened, locked out with an approved device and suitably tagged by a
				designated certified electrician. A designated certified electrician shall be
				the person who removes the danger tags, locking devices and restores the
				electrical power to the trolley and feeder wires in a specific area when the
				work has ceased or been completed.
10.1.3. A distance of twelve (12) inches
				minimum clearance shall be maintained between the machine being operated and
				any energized high voltage cables and insulated D.C. feeder cable.
10.1.4. Operative communications shall be
				provided at the site while persons are working in the construction and
				rehabilitation areas from the work site to the surface.
10.1.5. Four (4) twenty (20) lb. ABC fire
				extinguishers and first-aid supplies shall be provided at the work site. Such
				extinguishers shall be placed where they are readily accessible. The first-aid
				supplies listed below shall be maintained within five hundred (500) feet of the
				site.
10.1.5.a. The first-aid equipment
				required to be maintained shall include at least the following:
10.1.5.a.1. One (1) stretcher.
10.1.5.a.2. One (1) broken-back
				board.
10.1.5.a.3. Twenty-four (24)
				triangular bandages.
10.1.5.a.4.
				Eight (8) four-inch bandage compresses.
10.1.5.a.5. Sixteen (16) two-inch bandage
				compresses.
10.1.5.a.6. Twelve (12)
				one-inch adhesive compresses.
10.1.5.a.7. One (1) foille.
10.1.5.a.8. Two (2) cloth blankets.
10.1.5.a.9. One (1) rubber blanket.
10.1.5.a.10. Two (2) tourniquets.
10.1.5.a.11. One (1) one-ounce bottle of
				aromatic spirits of ammonia.
10.1.5.a.12. Two (2) inflatable plastic arm
				splints.
10.1.5.a.13. Two (2)
				inflatable plastic leg splints.
10.1.5.a.14. Six (6) small splints, metal or
				wooden.
10.1.5.a.15. Two (2) cold
				packs.
10.1.5.b. All
				first-aid supplies required to be maintained under this section shall be stored
				in suitable sanitary, dust-proof, moisture-proof containers and such supplies
				shall be accessible to the miners.
TABLE 36-4A
Short circuit protection; ratings and settings of
				  circuit breakers.
Conductor size AWG or MCM
Maximum allowable circuit breaker instantaneous
							 setting (amperes)
14
50
12
75
10
150
8
200
6
300
4
500
3
600
2
800
1
1000
1/0
1250
2/0
1500
3/0
2000
4/0
2500
250
2500
300
2500
350
2500
400
2500
450
2500
500
2500
TABLE 36-4B
SHORT CIRCUIT PROTECTION; DUAL ELEMENT FUSES; CURRENT
				  RATINGS; MAXIMUM VALUES
Single Conductor Cable
Two Conductor Cable
Conductor Size (AWG or MCM)
Ampacity
Max. Fuse Rating
Ampacity
Max. Fuse Rating
14
15
15
12
20
20
10
25
25
8
60
60
50
50
6
85
90
65
70
4
110
110
90
90
3
130
150
105
110
2
150
150
120
125
1
170
175
140
150
1/0
200
200
170
175
2/0
235
250
195
200
3/0
275
300
225
225
4/0
315
350
260
300
250
350
350
285
300
300
395
400
310
350
350
445
450
335
350
400
480
500
360
400
450
515
600
385
400
500
545
600
415
450
TABLE 36-4C
Single conductor cable
Two conductor cable
CABLE SIZE
MAX. BRK. SETTING
MAX. CABLE LENGTH
AMPACITY
MAX. FUSE RATING DE
14
50
---
15
15
12
75
---
20
20
10
150
---
25
25
8
200
---
50
50
6
300
550
65
70
4
500
600
90
90
3
600
650
105
110
2
800
700
120
125
1
1000
750
140
150
1/0
1250
800
170
175
2/0
1500
850
195
200
3/0
2000
900
225
225
4/0
2500
1000
260
300