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A1/A2 Brass Cable Glands
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GENERAL   INFORMATION

 STANDARDS

CABLEACC Cable glands are Manufactured and tested to the requirement of B.S. 6121 : 1989, and other standards where applicable.

Certain Glands in our range(i.e. commercial) whilst not covered by B. S. 6121 are generally made and tested appropriately by us as per requirement.

 MATERIALS AND FINISHED

Glands are manufactured as standards in casting Brass (B.S.2874) and free from blow holes, defects, spots etc. Alternatively material also used on specific requirement.

The standard material is unplated Brass. However on specific request platting will be done as per requirement.

 ENTRY THREADS 

    Metric threads 1.5 mm pitch are standard up to size 75mm. For size above 75mm pitch would be 2 mm BS 3643 applies only on Brass Cable Glands comply with BS 6121 : 1989.

    The following table gives the more popular forms available. (The table is not a size for size comparison chart. Some taper threads e.g. NPT, BSPT may require larger than standard entry components to accommodate the taper dimensions.)

LAND SIZE METRIC (MM)  NPT PG BSP  IMPERIAL
Preferred Alternate Preferred Alternate Preferred Alternate
16L 16 3/8" 1/2" 11 9, 13.5  3/8" 1/2" 5/8"
20S  20 1/2" - 13.5 11, 16  1/2" - 3/4"
20L 20 1/2" 3/4" 16  11, 13.5, 21 1/2" 3/4" 3/4"
25L  25 3/4" 1" 21  - 3/4" 1" 1"
32L  32 1" 1-1/4" 29  - 1" 1-1/4" 1-1/4"
40L 40 1-1/4" 1-1/2" 36 29 1-1/4" 1-1/2" 1-1/2"
50S  50 1-1/2" - 36  42 1-1/2" - 2"
50L 50 2" - 42  48 2" - 2"
63S  63 2" - 48 - 2" - 2-1/2"
63L 63 2-1/2" - - - 2-1/2" - 2-1/2"
75S 75 2-1/2" - - - 2-1/2" - 3"
75L 75 3" - - - 2-1/2" 3" 3"
90L 90 3-1/2" - - - 3" 3-1/2" 3-1/2"

We will mark the glands with any other threads E.G. BW-20L like BW-20L/1/2"NPT

NOTE  :-

Other thread types can be supplied at extra charge - details on request.

Other diameter thread forms can be supplied but special thread may increase the maximum across flats and across corners dimensions of the gland.

BRASS GLAND - SELECTION CHART (FOR BS 6346 TYPE CABLES) 
The gland sizes recommended are in accordance with calculations based on cables manufactured to BS6346 (1969) and we  cannot accept any responsibility for cables that prove to deviate materially from the nominal diameters quoted in BS6346 (1969)   

600/1000V STANDARD COPPER CONDUCTORS PVC INSULATED WITH STEEL WIRE ARMOUR AND PVC SHEATHED OVERALL
CABLE SIZE CONDUCTOR NUMBER OF CORES
NOM.
AREA
MM2 
NEUTRAL 1 2 3 3 1/2  4 5 7 10 12 19 27 37 48
1.5 - - 16 16 - 20S 20S 20S 20 20 25 25 32 32
2.5  - - 20S 20S - 20S 20S 20 25 25 25 32 32 40
4 - - 20S  20 - 20 20 25 25 32 32 40
6 - - 20 20 - 20  
10  - - 25 25 - 25
16 - - 25 25 - 25  
25 16 - 32
25
32 25  32 32
32 
 
35 16 - 32
25 
32 32  32 40
32 
 
50  25 25 32 32 32 40
70 35 25 32 40 40 40  
95 50 25 40 40 50S 50S
120 70 32 40 50S 50 50  
150 70 32 50S 50 50 63S
185 95 32 50 50 63S 63
240 120 40 50 63S 63 75S
300 150 40 63S 63 75S 75
300 185 - - - 75 -
400 185 50S 63 75S 90 90
500 - 50 -
630 - 50 -
800 - 63S -
1000 - 63 -

  4-1 NOTE : 

Do not use above sizing chart for either unarmoured cables or to select protex Gland type. Please refer to the individual product data sheet. 

Selection charts are intended as a guide. It is strongly recommended that the actual cable dimensions are checked against the Gland dimensions to ensure a correct selection. This is particularly important where seals are required.
CABLEACC. and their stockist cannot accept responsibility where an incorrect selection is made either of type or size. 

4-2 NOTE : 

Cable characters shown in RED incorporate the new circular conductors shown in BS 6346-1969 amendment No. 3717 (OCT-1981) 

HOW TO SELECT THE CABLE GLAND

The following is an extract from BS 6121 : Part 1, with edited additions to assist in gland selection. The information necessary for correct Gland selection are :

    Selection the type of cable and identify the Gland type from this catalogue.

  • Check the type, size and voltage rating of the cable.
  • Check ACTUAL size of cable over the inner sheath against catalogue.
  • Check ACTUAL size of overall Cable diameter against catalogue.
  • Check the size and type of armour or braiding, if any, against catalogue.
  • Check any special environment conditions including enclosure material in relation to corrosion.
  • Check whether installation is in Hazardous Area, and Consider seal protection for indoor/outdoor use.
  • Check accessories (i.e. shrouds, earth tags, locknuts etc.)

The table below offers guidance on the use of most popular Gland types listed in our  product details  We  can Cater for may application situations which are not shown here with either standard products or, when necessary, special variants. We would be pleased to discuss specific needs.
 

  CABLE TYPES  Unarmoured Single Wire Armour (SWA)
CONDITIONS Outer Seal  No Seal  Outer Seal  Inner Seal  Inner & 
Outer Seal
I
N
D
O
O
R
S
Clear & Dry A2 BW CW D1W E1W
External Moisture  A2 - CW - E1W
Internal Moisture  A2  - - D1W E1W
Dust A2  - CW - E1W
Oil A2  - CW - E1W
O
U
T
D
O
O
R
S
Protected with shroud A2 - CW - E1W
Exposed A2  - CW - E1W
Internal Moisture A2  - - - E1W
       
           

  HOW TO ORDER

Please Specify

  • Gland size & type
  • Quantity of each type required
  • Material, if other than Brass
  • Accessories : Size, type. Quantity and material
  • Enquiry or order number
  • State if confirmation order

ACCESSORIES

Details of the range of Cable Gland accessories available (earth tags, shrouds, Locknut etc.) are given in this publication on page no.

 

NOTES :- CABLEACC.  believes that the information about our Cable Glands given in this site is correct at the time of going on the net, but cannot be liable for any consequent of any error or omission. Technical changes are constantly being made, and we reserve the right to alter the information contained in this web-site without any notice.

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